D.C. Area Weather

[Mike M]

It is even hotter in Washington, DC than it is in locations farther north such as Philadelphia. There is the protential of some locations reaching the century mark for tomorrow. Some locations tonight may not even make it any lower than the 80's for the overnight low. Glad I'm not down there right now.

[Mike M]

4000 Emulator - 08/07/2007

[NYCTWCjunkie]

Across much of the Interstate 95 corridor from Richmond, Virginia through Washington, Baltimore, Philadelphia
and New York City, temperatures this afternoon are unseasonably warm for mid-April. Peak readings are expected
to reach the low to mid 80s in our nation's capital and around 80° in both Philadelphia and New York City.
It is also very dry right now across much of northern Virginia and southern Maryland under this strong dome of
high pressure sitting off the coast. While there are no watches or warnings issued by the National Weather Service
at this time, humidity levels in many locations are below 20%, almost desert-like conditions.

Plenty of sunshine this afternoon and clear skies tonight paves the way toward a nice Saturday as
high temperatures are expected to reach 80° again, but will cool off by Sunday with showers in the forecast
through Monday night and temperatures to top out in the low 60s.




I have not added the transparent byline on the photo yet, but to give the appropriate copyright credit,
the current conditions graphic page background is by Elysia Segal.

























LATEST HUMIDITY LEVELS
Baltimore... 14%
Arlington, Virginia... 15%
Fairfax, Virginia... 16%
Silver Spring, Maryland... 16%
Baltimore-Washington International Airport... 17%
Fort Belvoir, Virginia... 17%
Rockville, Maryland... 17%
Fredericksburg, Virginia... 19%
Gaithersburg, Maryland... 19%
Patuxent River Naval Air Station... 19%
Vienna, Virginia... 19%
Camp Springs, Maryland (Andrews Air Force Base)... 20%
Dulles International Airport... 20%
Huntingtown, Maryland... 21%
Manassas, Virginia... 21%
Bethesda, Maryland... 22%
Ronald Reagan National Airport... 23%
College Park, Maryland... 24%
Leesburg, Virginia... 24%
Alexandria, Virginia... 26%
Easton, Maryland... 32%
Annapolis, Maryland... 37%

[NYCTWCjunkie]

WASHINGTON
downtown weather conditions from Capitol Hill as of 4:15 PM Eastern Time

82°

partly cloudy

Heat Index: 81°
Visibility: 10 miles
Humidity: 34%
Dew Point: 51°
Wind: Calm
Barometric Pressure: 29.92 inches (falling)
Ceiling: Unlimited
Today's air quality forecast: Moderate



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
86° partly cloudy
Wind: SE at 6 MPH, gusting to 13 MPH
Heat Index: 83°
Humidity: 23%
Today's forecast:  Mostly sunny. High near 84°.


Annapolis, MD
77° sunny
Wind: SSE at 16 MPH, gusting to 23 MPH
Visibility: 8 miles
Today's forecast:  Mostly sunny. High near 80°.


Easton, MD
80° sunny
Wind: SW at 9 MPH
Today's forecast:  Mostly sunny. High near 79°.


Huntingtown, MD
81° sunny
Wind: SW at 4 MPH, gusting to 10 MPH
Heat Index: 80°
Humidity: 29%
Today's forecast:  Partly cloudy. High near 83°.


Manassas, VA
82° sunny
Wind: SW at 12 MPH, gusting to 18 MPH
Humidity: 26%
Today's forecast:  Mostly sunny. High near 84°.


Leesburg, VA
84° sunny
Wind: S at 8 MPH, gusting to 18 MPH
Humidity: 28%
Today's forecast:  Mostly sunny. High near 87°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
80° fair
Wind: S at 16 MPH


Dulles International Airport
81° fair
Wind: SW at 14 MPH, gusting to 21 MPH
Humidity: 27%


Baltimore-Washington International Airport
81° fair
Wind: SSW at 9 MPH, gusting to 21 MPH
Humidity: 20%


Alexandria, VA
83° partly cloudy
Wind: SSW at 4 MPH
Heat Index: 81°


Camp Springs, MD (Andrews AFB)
80° sunny
Wind: SSE at 10 MPH


Arlington, VA
84° partly cloudy
Wind: SE at 4 MPH
Heat Index: 82°


Patuxent River Naval Air Station
74° fair
Wind: ESE at 14 MPH


Fairfax, VA
83° partly cloudy
Wind: SW at 4 MPH, gusting to 16 MPH
Heat Index: 81°
Humidity: 25%


Vienna, VA
84° partly cloudy
Wind: SSW at 8 MPH
Heat Index: 81°
Humidity: 19%


Bethesda, MD
84° partly cloudy
Wind: E at 7 MPH, gusting to 14 MPH
Heat Index: 82°
Humidity: 27%


College Park, MD
84° sunny
Wind: S at 9 MPH, gusting to 17 MPH
Humidity: 18%


Fort Belvoir, VA
83° fair
Wind: S at 10 MPH, gusting to 17 MPH
Humidity: 27%


Frederick, MD
80° sunny
Wind: SSW at 10 MPH
Humidity: 22%


Fredericksburg, VA
86° sunny
Wind: S at 13 MPH, gusting to 16 MPH


Gaithersburg, MD
83° sunny
Wind: S at 3 MPH
Heat Index: 81°
Humidity: 24%


Rockville, MD
86° sunny
Wind: SW at 2 MPH
Heat Index: 83°
Humidity: 21%


Silver Spring, MD
81° sunny
Wind: S at 5 MPH
Heat Index: 80°
Humidity: 26%



36-HOUR FORECAST FOR WASHINGTON (through Thursday night)...
(courtesy of the National Weather Service)

REST OF TODAY
Mostly sunny. High near 84. South wind between 7 to 13 MPH.

TONIGHT
Mostly cloudy with a 30% chance of showers after 2:00 AM. Low around 63. South wind between 13 to 17 MPH.

THURSDAY
Mostly cloudy with a 50% chance of showers, with thunderstorms also possible after 12:00 PM. High near 77.
South wind between 11 to 15 MPH. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

THURSDAY NIGHT
Overcast with a 60% chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight.
Low around 63. South wind between 7 to 10 MPH. New rainfall amounts between ¼ inch to ½ inch possible.

[NYCTWCjunkie]

A strong coastal low pressure storm system that originated as widespread areas of severe weather across
the nation's heartland over the past 72 hours has brought heavy rain to the mid-Atlantic coastal region
of the United States over the past 18 to 24 hours. The nation's capital is bearing the brunt of this
heavy precipitation that is gradually moving north and east during the overnight hours. Rainfall totals could
reach 5 to 6 inches in the most saturated areas in northern Virginia, the city of Washington itself as well as
eastern Maryland (including Baltimore) from this storm before all is said and done. The National Weather Service
has issued two flood warnings for many locations along the Potomac River during this overnight period.

This same area of moderate to heavy rain is forecast to move toward Philadelphia and into primarily
the southern portions of the New York City metropolitan area later today.

Weather conditions aren't expected to improve for another 12 to 18 hours and in the meantime,
it is expected to be a raw Monday with temperatures not getting out of the 50s.
By Tuesday, sunny skies and temperatures rebounding to around 70°.

SPECIAL WEATHER STATEMENTS by the National Weather Service in Sterling, Virginia on May 12, 2008

A FLOOD WARNING is in effect until 5:30 AM Eastern Daylight Time.

The National Weather Service in Sterling, Virginia has issued a Flood Warning for the following locations:

District of Columbia
Arlington County in northern Virginia
City of Alexandria, Virginia
City of Fairfax, Virginia
City of Falls Church, Virginia
Fairfax County in northern Virginia

At 11:31 PM EDT, radar indicated an area of very heavy rain over the Washington metropolitan area.
Over 3 inches have fallen across the area and another 2 to 3 inches will be possible through 5:30 AM EDT.

Some locations that will continue to be affected by the heavy rain include Alexandria, Annandale, Arlington,
Bailey's Crossroads, Ballston, Burke, Centreville, Chantilly, Fort Belvoir, Franconia, Great Falls, Herndon,
Hybla Valley, Lake Barcroft, Lincolnia, Lorton, McLean, Merrifield, Newington, Oakton, Reagan National Airport,
Reston, Rosslyn, Springfield, the I-395 and I-495 interchange, the I-66 and I-495 interchange, Tysons Corner,
Vienna, Wolf Trap, the American Legion Bridge, the Woodrow Wilson Bridge, Adams Morgan, Anacostia,
American University, Georgetown, Kenilworth, the city of Washington and the U.S. Capitol.

A Flood Warning means that flooding is imminent or has been reported.
Stream rises will be slow and flash flooding is not expected.
However, all interested parties should take necessary precautions immediately.

Be especially cautious at night when it is harder to recognize the dangers of flooding.
If flooding is observed act quickly. Move up to higher ground to escape flood waters.
Do not stay in areas subject to flooding when water begins rising.

A COASTAL FLOOD WARNING is in effect until 6:00 AM Eastern Daylight Time.

The National Weather Service in Baltimore/Washington has issued a Coastal Flood Warning which is in effect
until 6:00 AM Eastern Daylight Time.

This mornings high tide cycle will run 2½ to 3 feet above normal. This will put the tidal Potomac north of
Aquia creek in Stafford County in flood. This includes the city of Alexandria, the city of Washington
including East Potomac Park and the easternmost parking areas of Reagan National Airport.

Here are the times of the next high tides along the Potomac River...

Aquia Creek, Virginia... 12:49 AM
Indian Head, Maryland... 2:21 AM
Washington (Maine Avenue wharf)... 2:35 AM
Alexandria, Virginia... 2:53 AM
Washington (Key Bridge)... 3:00 AM

A Coastal Flood Warning means that flooding is occurring or imminent. Coastal residents in the warned area
should be alert for rising water and take appropriate action to protect life and property.


I will post the graphics pages as soon as I can.


WASHINGTON
downtown weather conditions from Capitol Hill as of 12:15 AM Eastern Time

51°

heavy rain

Visibility: 3 miles
Humidity: 94%
Dew Point: 49°
Wind: NE at 5 MPH, gusting to 10 MPH
Barometric Pressure: 29.92 inches (stationary)
Ceiling: 2700 feet
Monday's air quality forecast: Good



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
51° heavy rain
Wind: NNE at 11 MPH, gusting to 24 MPH
Visibility: 2 miles
Humidity: 90%
Monday's forecast:  90% chance of morning rain. High near 55°.


Annapolis, MD
54° heavy rain
Wind: NNE at 17 MPH, gusting to 28 MPH
Visibility: 1 mile
Humidity: 92%
Monday's forecast:  90% chance of morning rain under windy conditions. High near 54°.


Easton, MD
50° rain and windy
Wind: E at 28 MPH, gusting to 36 MPH
Visibility: 4 miles
Humidity: 100%
Monday's forecast:  100% chance of rain under windy conditions with possible thunderstorms. High near 54°.


Huntingtown, MD
52° heavy rain
Wind: NNW at 10 MPH, gusting to 19 MPH
Visibility: 3 miles
Humidity: 97%
Monday's forecast:  90% chance of rain and windy. High near 54°.


Manassas, VA
50° overcast and windy
Wind: N at 22 MPH, gusting 31 MPH
Visibility: 10 miles
Humidity: 87%
Monday's forecast:  80% chance of morning rain and windy. High near 54°.


Leesburg, VA
51° heavy rain
Wind: NNE at 8 MPH, gusting to 18 MPH
Visibility: 4 miles
Humidity: 93%
Monday's forecast:  90% chance of morning rain. High near 53°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
53° heavy rain and windy
Wind: N at 30 MPH, gusting to 36 MPH
Visibility: 3 miles
Humidity: 81%


Dulles International Airport
50° rain
Wind: NNE at 16 MPH, gusting to 26 MPH
Visibility: 4 miles
Humidity: 87%


Baltimore-Washington International Airport
50° heavy rain and windy
Wind: N at 20 MPH, gusting to 25 MPH
Visibility: 2 miles
Humidity: 89%


Alexandria, VA
51° heavy rain
Wind: S at 2 MPH
Visibility: 3 miles
Humidity: 92%


Camp Springs, MD (Andrews AFB)
50° heavy rain and windy
Wind: N at 21 MPH, gusting to 30 MPH
Visibility: 4 miles
Humidity: 93%


Arlington, VA
50° heavy rain
Wind: Calm
Visibility: 3 miles
Humidity: 92%


Patuxent River Naval Air Station
58° overcast
Wind: ENE at 17 MPH, gusting to 31 MPH
Visibility: 3 miles
Humidity: 93%


Fairfax, VA
50° rain
Wind: Calm
Visibility: 3 miles
Humidity: 94%


Vienna, VA
51° heavy rain
Wind: NW at 2 MPH, gusting to 7 MPH
Visibility: 3 miles
Humidity: 96%


Bethesda, MD
50° heavy rain
Wind: SSW at 4 MPH
Visibility: 3 miles
Humidity: 91%


College Park, MD
51° overcast
Wind: NNE at 15 MPH, gusting to 23 MPH
Visibility: 4 miles
Humidity: 93%


Fort Belvoir, VA
52° heavy rain
Wind: NNW at 9 MPH, gusting to 18 MPH
Visibility: 5 miles
Humidity: 94%


Frederick, MD
46° heavy rain
Wind: NNE at 12 MPH, gusting to 18 MPH
Visibility: 10 miles
Humidity: 93%


Fredericksburg, VA
51° overcast
Wind: NW at 17 MPH, gusting to 25 MPH
Visibility: 5 miles
Humidity: 87%


Gaithersburg, MD
48° overcast
Wind: NE at 14 MPH, gusting to 24 MPH
Visibility: 7 miles
Humidity: 97%


Rockville, MD
48° overcast
Wind: ENE at 7 MPH
Visibility: 7 miles
Humidity: 94%


Silver Spring, MD
49° overcast
Wind: WNW at 3 MPH
Visibility: 4 miles
Humidity: 94%



36-HOUR FORECAST FOR WASHINGTON (through Tuesday)...
(courtesy of the National Weather Service)

OVERNIGHT
Rain, possibly heavy at times under windy conditions. Low around 50°.
East wind between 22 to 24 MPH with gusts as high as 37 MPH. Chance of precipitation is 100%.
New rainfall amounts between ½ inch to ¾ inch possible.

LATER TODAY
Rain and windy, mainly before 12:00 PM. High near 55°.
North wind 7 to 10 MPH increasing to between 17 to 20 MPH.
Chance of precipitation is 90%. New rainfall amounts between ½ inch to ¾ inch possible.

TONIGHT
Overcast with a 40% chance of rain before midnight, then gradually becoming partly cloudy. Low around 46°.
North wind between 13 to 17 MPH. New rainfall amounts of less than a tenth of an inch possible.

TUESDAY
Mostly sunny. High near 69°. North wind between 13 to 16 MPH.



Washington/Baltimore regional radar within the last 1 hour (courtesy of WJLA-TV)...

[NYCTWCjunkie]

The first true heat wave of this calendar year is now underway in the nation's capital. Yes, I know.
It shouldn't be called a heat wave just yet, but it is expected to reach 90° until Wednesday at the earliest.

This afternoon is a possible taste of what is yet to come this summer as we are still in late spring here.
Temperatures are a good 15° to 20° above normal for this time of year. Heat index values are already at
dangerous levels as you add the humidity to make it feel above 100° in many locations across
eastern Maryland (except the shore areas) and much of Virginia.

A Heat Advisory is right now in effect for Washington until 8:00 PM tonight.
See the National Weather Service statement for more details.

SPECIAL WEATHER STATEMENTS by the National Weather Service in Sterling, Virginia on June 7, 2008

A HEAT ADVISORY is in effect until 8:00 PM Eastern Daylight Time.
AN EXCESSIVE HEAT WATCH from Sunday afternoon through Monday afternoon.

A Bermuda high over the western Atlantic through Monday will bring hot and humid conditions to the region
on west to southwest winds. High temperatures across most of northern and central Virginia as well as
the Baltimore and Washington metropolitan areas will reach the mid and upper 90s each day.
A few locations may reach 100°.

The hot temperatures combined with high humidity will cause heat indices to approach 105° this afternoon.
Heat indices may approach 110° Sunday and Monday.

The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses
are possible. Since this is the first period of hot and humid weather this season, most area residents
have not yet acclimated to these conditions. That makes heat related injuries more likely.

Here is a refresher on some heat safety tips. Weak loose fitting, light weight and light colored clothing.
Drink plenty of non-alcoholic fluids. Water is your best choice. Stay out of the sun and spend at least some time
in an air-conditioned room. Never leave children or pets in a locked car even with the windows cracked.

Also remember to check up on relatives and neighbors, especially those who may not have air conditioning
or whose power is still out from the recent severe storms.

Listen to NOAA Weather Radio or your local media for the later updates on this situation.


Graphics pages will be posted as soon as possible.


WASHINGTON
downtown weather conditions from Capitol Hill as of 3:05 PM Eastern Time

95°

scattered clouds

Heat Index: 107°
Visibility: 10 miles
Humidity: 52%
Dew Point: 75°
Wind: Variable at 1 MPH, gusting to 6 MPH
Barometric Pressure: 29.92 inches (falling)
Ceiling: Unlimited
Today's air quality forecast:  Unhealthy for Sensitive Groups



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
99° scattered clouds
Wind: SSW at 4 MPH, gusting to 7 MPH
Heat Index: 105°
Visibility: 10 miles
Humidity: 36%
Today's forecast:  Partly cloudy. High near 97°. Heat index values as high as 100°.


Annapolis, MD
79° sunny and misty
Wind: SE at 13 MPH
Visibility: 1½ miles
Humidity: 87%
Today's forecast:  Partly cloudy. High near 91°.


Easton, MD
93° sunny and hazy
Wind: Calm
Heat Index: 107°
Visibility: 5 miles
Humidity: 59%
Today's forecast:  Mostly sunny. High near 95°. Heat index values as high as 103°.


Huntingtown, MD
96° partly cloudy
Wind: Calm
Heat Index: 110°
Visibility: 10 miles
Humidity: 53%
Today's forecast:  Partly cloudy. High near 94°. Heat index values between 100° to 105°.


Manassas, VA
96° sunny
Wind: Calm
Heat Index: 102°
Visibility: 10 miles
Humidity: 41%
Today's forecast:
Partly cloudy with a 20% chance of showers and thunderstorms. High near 98°. Heat index values as high as 102°.


Leesburg, VA
98° sunny
Wind: SW at 7 MPH
Heat Index: 108°
Visibility: 10 miles
Humidity: 44%
Today's forecast:
Partly cloudy with a 20% chance of showers and thunderstorms. High near 99°. Heat index values as high as 102°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
97° partly cloudy
Wind: Variable at 6 MPH
Heat Index: 104°
Visibility: 10 miles
Humidity: 41%


Dulles International Airport
94° fair
Wind: W at 7 MPH
Heat Index: 99°
Visibility: 10 miles
Humidity: 44%


Baltimore-Washington International Airport
95° partly cloudy
Wind: W at 10 MPH
Heat Index: 100°
Visibility: 10 miles
Humidity: 41%


Alexandria, VA
99° scattered clouds
Wind: Variable at 1 MPH
Heat Index: 111°
Visibility: 10 miles
Humidity: 44%


Camp Springs, MD (Andrews AFB)
96° fair
Wind: Variable at 5 MPH
Heat Index: 98°
Visibility: 10 miles
Humidity: 37%


Arlington, VA
99° scattered clouds
Wind: Calm
Heat Index: 112°
Visibility: 10 miles
Humidity: 45%


Patuxent River Naval Air Station
85° partly cloudy and hazy
Wind: SE at 7 MPH
Heat Index: 92°
Visibility: 3 miles
Humidity: 69%


Fairfax, VA
96° partly cloudy
Wind: W at 2 MPH, gusting to 11 MPH
Heat Index: 101°
Visibility: 10 miles
Humidity: 41%


Vienna, VA
100° scattered clouds
Wind: Calm
Heat Index: 98°
Visibility: 10 miles
Humidity: 23%


Bethesda, MD
98° scattered clouds
Wind: Variable at 1 MPH
Heat Index: 104°
Visibility: 10 miles
Humidity: 38%


Fort Belvoir, VA
96° drizzle
Wind: Variable at 3 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 42%


La Plata, MD
96° haze
Wind: SSW at 3 MPH
Heat Index: 106°
Visibility: 5 miles
Humidity: 48%


Warrenton, VA
102° sunny
Wind: Calm
Heat Index: 107°
Visibility: 10 miles
Humidity: 31%


Gaithersburg, MD
98° sunny
Wind: NE at 4 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 37%


Rockville, MD
99° sunny
Wind: WNW at 1 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 34%


Silver Spring, MD
97° scattered clouds
Wind: Calm
Heat Index: 106°
Visibility: 10 miles
Humidity: 46%



36-HOUR FORECAST FOR WASHINGTON (through Sunday night)...
(courtesy of the National Weather Service)

REST OF TODAY
Partly sunny and hot. High near 98°. Heat index values as high as 101°. West wind around 6 MPH.

TONIGHT
Partly cloudy. Low around 76°. South wind between 4 to 7 MPH becoming calm.

SUNDAY
Sunny and hot. High near 97°. Heat index values as high as 102°. Calm wind becoming west between 6 to 9 MPH.

SUNDAY NIGHT
Mostly clear. Low around 77°. Southwest wind between 4 to 7 MPH becoming calm.

[NYCTWCjunkie]

Now fully entrenched in a heat wave that stretches from the southern Great Plains all the way up into the northeastern region of the United States, high temperatures will once again push close to the century mark this afternoon. The heat and humidity could set off a few showers and thunderstorms in and around Washington later today and into tonight before another scorcher tomorrow with more of the same weather (except the threat of storms).

A Heat Advisory is in effect until late tomorrow night for the entire region.
See the National Weather Service statement for more details.

SPECIAL WEATHER STATEMENT by the National Weather Service in Sterling, Virginia on June 8, 2008
A HEAT ADVISORY is in effect until 11:00 PM Eastern Daylight Time on Monday night.

Strong high pressure across the western Atlantic will remain in place through early next week, providing hot and humid conditions across the mid Atlantic states. High temperatures both today and Monday are expected to be in the mid to upper 90s. This combined with a humid air mass will allow heat index values to reach up to 105° each afternoon. Temperatures tonight will only drop into the 70s.

The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are
possible. Since this is the first period of hot and humid weather this season, most area residents have not yet acclimated to these conditions. That makes heat related injuries more likely.

Here is a refresher on some heat safety tips. Wear loose fitting, light weight and light colored clothing. Drink plenty
of non alcoholic fluids. Water is your best choice. Stay out of the sun and spend at least some time in an air-conditioned
room. Never leave children or pets in a locked car, even with the windows cracked.

Also remember to check up on relatives and neighbors, especially those who may not have air conditioning or whose power is still out from the recent severe storms.

Graphics pages will be posted as soon as possible.


WASHINGTON
downtown weather conditions from Capitol Hill as of 4:05 PM Eastern Time

96°

mostly cloudy

Heat Index: 108°
Visibility: 10 miles
Humidity: 51%
Dew Point: 75°
Wind: WSW at 3 MPH, gusting to 11 MPH
Barometric Pressure: 29.81 inches (falling)
Ceiling: 25,000 feet
Today's air quality forecast:  Unhealthy for Sensitive Groups



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
96° mostly cloudy
Wind: WNW at 2 MPH
Heat Index: 112°
Visibility: 10 miles
Humidity: 55%
Today's forecast:
Partly cloudy and hot with a 20% chance of showers and thunderstorms.
High near 98°. Heat index values as high as 105°.


Annapolis, MD
94° fair
Wind: SW at 7 MPH
Heat Index: 102°
Visibility: 7 miles
Humidity: 49%
Today's forecast:  Mostly cloudy with a 30% chance of showers and thunderstorms. High near 93°.


Easton, MD
93° sunny
Wind: WSW at 12 MPH
Heat Index: 105°
Visibility: 10 miles
Humidity: 56%
Today's forecast:  Sunny. High near 97°. Heat index values as high as 105°.


Huntingtown, MD
93° sunny
Wind: Calm
Heat Index: 104°
Visibility: 10 miles
Humidity: 56%
Today's forecast:
Partly cloudy with a 30% chance of showers and thunderstorms. High near 97°. Heat index values as high as 108°.


Manassas, VA
95° sunny
Wind: WSW at 8 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 46%
Today's forecast:
Partly cloudy and hot with a 30% chance of showers and thunderstorms. High near 99°. Heat index values as high as 104°.


Leesburg, VA
98° partly cloudy
Wind: SW at 3 MPH
Heat Index: 110°
Visibility: 10 miles
Humidity: 47%
Today's forecast:
Partly cloudy with a 30% chance of showers and thunderstorms. High near 100°. Heat index values as high as 106°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
95° mostly cloudy
Wind: SW at 9 MPH, gusting to 22 MPH
Heat Index: 101°
Visibility: 10 miles
Humidity: 44%


Dulles International Airport
93° partly cloudy
Wind:
Heat Index: 101°
Visibility: 10 miles
Humidity: 50%


Baltimore-Washington International Airport
91° mostly cloudy
Wind: WSW at 8 MPH
Heat Index: 98°
Visibility: 10 miles
Humidity: 52%


Alexandria, VA
95° mostly cloudy
Wind: WSW at 1 MPH
Heat Index: 105°
Visibility: 10 miles
Humidity: 49%


Camp Springs, MD (Andrews AFB)
93° sunny
Wind: SW at 12 MPH
Heat Index: 96°
Visibility: 10 miles
Humidity: 43%


Arlington, VA
96° mostly cloudy
Wind: Calm
Heat Index: 108°
Visibility: 10 miles
Humidity: 50%


Patuxent River Naval Air Station
94° mostly cloudy
Wind: WSW at 10 MPH
Heat Index: 96°
Visibility: 10 miles
Humidity: 38%


Fairfax, VA
94° scattered clouds
Wind: SW at 3 MPH, gusting to 16 MPH
Heat Index: 101°
Visibility: 10 miles
Humidity: 46%


Vienna, VA
97° mostly cloudy
Wind: Calm
Heat Index: 95°
Visibility: 10 miles
Humidity: 26%


Bethesda, MD
95° mostly cloudy
Wind: Calm
Heat Index: 105°
Visibility: 10 miles
Humidity: 49%


Fort Belvoir, VA
95° sunny
Wind: WSW at 8 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 47%


Gaithersburg, MD
96° scattered clouds
Wind: NE at 6 MPH, gusting to 14 MPH
Heat Index: 101°
Visibility: 10 miles
Humidity: 41%


Rockville, MD
97° scattered clouds
Wind: SW at 3 MPH
Heat Index: 103°
Visibility: 10 miles
Humidity: 39%


Silver Spring, MD
95° scattered clouds
Wind: Calm
Heat Index: 102°
Visibility: 10 miles
Humidity: 45%



36-HOUR FORECAST FOR WASHINGTON (through Monday night)...
(courtesy of the National Weather Service)

REST OF TODAY
Partly cloudy and hot with a 30% chance of scattered showers and thunderstorms.
High near 98°. Heat index values as high as 104°. West wind between 10 and 13 mph.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

TONIGHT
Mostly cloudy with a 30% chance of showers and thunderstorms before 10:00 PM, then gradually becoming clear.
Low around 78°. Southwest wind between 3 to 10 MPH. New rainfall amounts of less than a tenth of an inch,
except higher amounts possible in thunderstorms.

MONDAY
Sunny and hot. High near 98°. Heat index values as high as 103°. Calm wind becoming west between 6 to 9 MPH.

MONDAY NIGHT
Mostly clear. Low around 76°. Southwest wind between 3 to 7 MPH.

[NYCTWCjunkie]

High temperatures will once again push close to the century mark this afternoon in our nation's capital
after a peak reading of 96° at Ronald Reagan National Airport yesterday, just 2° shy of the 1999 record
for the date. While no storms are in the forecast today, the heat and humidity could set off a few showers
and thunderstorms in and around Washington tomorrow.

A Heat Advisory is in effect until 8:00 PM Eastern Daylight Time tomorrow night for the entire region.
See the National Weather Service statement for more details.

SPECIAL WEATHER STATEMENT by the National Weather Service in Sterling, Virginia on June 9, 2008
A HEAT ADVISORY is in effect until 8:00 PM Eastern Daylight Time on Tuesday night.


Strong high pressure across the western Atlantic will remain in place through Tuesday, providing hot
and humid conditions across the mid Atlantic states. High temperatures both Monday and Tuesday
are expected to be between 95° to 100°. This combined with a humid air mass will allow heat index values
to reach up to 105°.

A cold front is forecast to move through the area on Tuesday night, allowing for a drop in temperatures
and lower humidity on Wednesday.

Here is a refresher on some heat safety tips. Wear loose fitting, light weight and light colored clothing.
Drink plenty of non alcoholic fluids. Water is your best choice. Stay out of the sun and spend at least
some time in an air-conditioned room. Never leave children or pets in a locked car, even with the windows cracked.

Also remember to check up on relatives and neighbors, especially those who may not have air conditioning.


Graphics pages will be posted as soon as possible.


WASHINGTON
downtown weather conditions from Capitol Hill as of 3:05 PM Eastern Time

98°

scattered clouds

Heat Index: 109°
Visibility: 10 miles
Humidity: 46%
Dew Point: 74°
Wind: Calm
Barometric Pressure: 29.81 inches (falling)
Ceiling: Unlimited
Today's air quality forecast:  Unhealthy for Sensitive Groups



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
99° partly cloudy
Wind: W at 4 MPH
Heat Index: 111°
Humidity: 45%
Today's forecast:  Mostly sunny and hot. High near 99°. Heat index values as high as 103°.


Annapolis, MD
95° haze
Wind: Variable at 6 MPH
Heat Index: 101°
Visibility: 6 miles
Humidity: 43%
Today's forecast:  Mostly sunny and hot. High near 94°. Heat index values as high as 100°.


Easton, MD
93° sunny
Wind: W at 6 MPH
Heat Index: 105°
Humidity: 56%
Today's forecast:  Sunny, hot and humid. High near 97°. Heat index values as high as 106°.


Huntingtown, MD
95° scattered clouds
Wind: Calm
Heat Index: 113°
Humidity: 58%
Today's forecast:  Mostly sunny and hot. High near 97°. Heat index values as high as 107°.


Manassas, VA
93° fair
Wind: SW at 9 MPH
Heat Index: 98°
Humidity: 46%
Today's forecast:  Mostly sunny and hot. High near 100°. Heat index values as high as 104°.


Leesburg, VA
96° sunny
Wind: W at 5 MPH
Heat Index: 104°
Humidity: 44%
Today's forecast:  Mostly sunny and hot. High near 101°. Heat index values as high as 106°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
96° partly cloudy
Wind: W at 10 MPH, gusting to 16 MPH
Heat Index: 100°
Humidity: 38%


Dulles International Airport
93° partly cloudy
Wind: WSW at 7 MPH
Heat Index: 97°
Humidity: 44%


Baltimore-Washington International Airport
94° fair
Wind: W at 8 MPH
Heat Index: 100°
Humidity: 45%


Alexandria, VA
99° scattered clouds
Wind: SSW at 4 MPH
Heat Index: 109°
Humidity: 43%


Camp Springs, MD (Andrews AFB)
94° partly cloudy
Wind: SW at 9 MPH
Heat Index: 97°
Humidity: 39%


Arlington, VA
99° scattered clouds
Wind: Calm
Heat Index: 110°
Humidity: 44%


Patuxent River Naval Air Station
93° haze
Wind: Variable at 3 MPH
Heat Index: 100°
Visibility: 6 miles
Humidity: 49%


Fairfax, VA
96° scattered clouds
Wind: W at 2 MPH
Heat Index: 102°
Humidity: 43%


Vienna, VA
98° scattered clouds
Wind: Calm
Heat Index: 95°
Humidity: 21%


Bethesda, MD
96° scattered clouds
Wind: NW at 1 MPH
Heat Index: 101°
Humidity: 41%


College Park, MD
96° sunny
Wind: WNW at 8 MPH
Heat Index: 97°
Humidity: 32%


Fort Belvoir, VA
95° partly cloudy
Wind: S at 6 MPH
Heat Index: 104°
Humidity: 50%


Frederick, MD
95° sunny
Wind: W at 10 MPH
Heat Index: 97°
Humidity: 36%


Gaithersburg, MD
94° scattered clouds
Wind: NE at 3 MPH
Heat Index: 99°
Humidity: 43%


Rockville, MD
98° sunny
Wind: WSW at 3 MPH
Heat Index: 101°
Humidity: 35%


Silver Spring, MD
96° sunny
Wind: W at 1 MPH
Heat Index: 103°
Humidity: 44%



36-HOUR FORECAST FOR WASHINGTON (through Tuesday night)...
(courtesy of the National Weather Service)

REST OF TODAY
Mostly sunny and hot. High near 100°. Heat index values as high as 104°. West wind between 9 to 11 MPH.

TONIGHT
Mostly clear. Low around 78°. South wind between 5 to 9 MPH.

TUESDAY
Partly cloudy with a 50% chance of showers and thunderstorms after 12:00 PM. High near 96°.
Heat index values as high as 103°. Calm wind becoming south between 4 to 7 MPH.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

TUESDAY NIGHT
Mostly cloudy with a 40% chance of showers and thunderstorms, mainly before midnight.
Low around 72°. Southwest wind at 6 MPH becoming northwest.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

[NYCTWCjunkie]

In what hopefully will be the final hours of this very late spring heat wave across the entire eastern third
of the country, scattered showers and thunderstorms are expected to move through the Washington and
Baltimore areas late this afternoon or tonight. Temperatures are well up into the 90s across the entire region
and heat indices are at dangerous levels in most areas, including our nation's capital. There are a handful
of heat index levels that are above 110°.

A Heat Advisory is in effect until 8:00 PM Eastern Daylight Time tonight.
See the National Weather Service statement for more details.


SPECIAL WEATHER STATEMENT by the National Weather Service in Sterling, Virginia on June 10, 2008
A HEAT ADVISORY is in effect until 8:00 PM Eastern Daylight Time.

High pressure will remain across the eastern U.S. today, providing for continued hot and humid conditions across the mid Atlantic states. High temperatures are expected to top out between 95° to 100°. This combined with a humid air mass will allow heat index values to reach up to 105°.

A cold front is forecast to move through the area on tonight, allowing for a drop in temperatures and lower humidity on Wednesday.

Here is a refresher on some heat safety tips. Wear loose fitting, light weight and light colored clothing.
Drink plenty of non alcoholic fluids. Water is your best choice. Stay out of the sun and spend at least
some time in an air-conditioned room. Never leave children or pets in a locked car, even with the windows cracked.

Also remember to check up on relatives and neighbors, especially those who may not have air conditioning.


Graphics pages will be posted as soon as possible.


WASHINGTON
downtown weather conditions from Capitol Hill as of 2:05 PM Eastern Time

99°

partly cloudy

Heat Index: 113°
Visibility: 10 miles
Humidity: 47%
Dew Point: 75°
Wind: Calm
Barometric Pressure: 29.77 inches (falling)
Ceiling:  Unlimited
Today's air quality forecast:  Unhealthy for Sensitive Groups



METROPOLITAN AREA MAP OBSERVATIONS...

Baltimore
98° partly cloudy
Wind: SE at 2 MPH
Heat Index: 113°
Visibility: 8 miles
Humidity: 49%
Today's forecast:
Partly cloudy and hot with a 40% chance of scattered showers and thunderstorms after 3:00 PM.
Some storms could be severe. High near 98°. Heat index values as high as 105°.


Annapolis, MD
94° sunny and hazy
Wind: S at 6 MPH
Heat Index: 98°
Visibility: 6 miles
Humidity: 42%
Today's forecast:
Mostly cloudy with a 30% chance of scattered showers and thunderstorms after 3:00 PM.
Some storms could be severe. High near 92°.


Easton, MD
96° sunny
Wind: SSW at 9 MPH
Heat Index: 105°
Humidity: 47%
Today's forecast:
Mostly sunny and hot with a 20% chance of showers and thunderstorms.
High near 97°. Heat index values as high as 105°.


Huntingtown, MD
96° sunny
Wind: Calm
Heat Index: 112°
Humidity: 56%
Today's forecast:
Mostly sunny and hot with a 40% chance of showers and thunderstorms.
Some storms could be severe. High near 97°. Heat index values as high as 107°.


Manassas, VA
93° fair
Wind: SSW at 5 MPH
Heat Index: 100°
Humidity: 49%
Today's forecast:
Partly cloudy and hot with a 40% chance of scattered showers and thunderstorms after 3:00 PM.
Some storms could be severe. High near 99°. Heat index values as high as 103°.


Leesburg, VA
96° sunny
Wind: SW at 6 MPH
Heat Index: 105°
Humidity: 47%
Today's forecast:
Partly cloudy and hot with a 50% chance of scattered showers and thunderstorms after 3:00 PM.
Some storms could be severe. High near 99°. Heat index values as high as 105°.



OTHER REGIONAL OBSERVATIONS...

Ronald Reagan National Airport
95° fair
Wind: SSE at 8 MPH
Heat Index: 105°
Humidity: 49%


Dulles International Airport
94° fair
Wind: Variable at 6 MPH
Heat Index: 102°
Visibility: 8 miles
Humidity: 49%


Baltimore-Washington International Airport
94° fair
Wind: SSW at 6 MPH
Heat Index: 99°
Visibility: 8 miles
Humidity: 44%


Alexandria, VA
96° partly cloudy
Wind: NE at 1 MPH
Heat Index: 109°
Humidity: 51%


Camp Springs, MD (Andrews AFB)
95° sunny
Wind: SSW at 9 MPH
Heat Index: 98°
Humidity: 39%


Arlington, VA
99° partly cloudy
Wind: Calm
Heat Index: 114°
Humidity: 48%


Patuxent River Naval Air Station
92° fair and hazy
Wind: ESE at 7 MPH
Heat Index: 102°
Visibility: 4 miles
Humidity: 57%


Fairfax, VA
96° partly cloudy
Wind: Variable at 2 MPH, gusting to 13 MPH
Heat Index: 105°
Visibility: 8 miles
Humidity: 47%


Vienna, VA
100° partly cloudy
Wind: Calm
Heat Index: 98°
Humidity: 24%


Bethesda, MD
97° partly cloudy
Wind: WNW at 1 MPH
Heat Index: 104°
Humidity: 41%


College Park, MD
98° sunny
Wind: S at 8 MPH
Heat Index: 99°
Humidity: 30%


Fort Belvoir, VA
95° sunny
Wind: SSE at 8 MPH
Heat Index: 107°
Humidity: 54%


Frederick, MD
95° sunny
Wind: SW at 8 MPH
Heat Index: 100°
Humidity: 41%


Gaithersburg, MD
98° scattered clouds
Wind: NE at 6 MPH
Heat Index: 106°
Humidity: 41%


Rockville, MD
100° scattered clouds
Wind: SSE at 1 MPH
Heat Index: 105°
Humidity: 33%


Silver Spring, MD
97° sunny
Wind: NNW at 1 MPH
Heat Index: 104°
Humidity: 43%



36-HOUR FORECAST FOR WASHINGTON (through Wednesday night)...
(courtesy of the National Weather Service)

REST OF TODAY
Partly sunny and hot with a 40% chance of scattered showers and thunderstorms after 3:00 PM.
Some storms could be severe with large hail and damaging winds. High near 98°.
Heat index values as high as 103°. South wind between 8 to 10 MPH.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

TONIGHT
Mostly cloudy with a 40% chance of scattered showers and thunderstorms, mainly before 10:00 PM.
Some storms could be severe with large hail and damaging winds.
Low around 72°. West wind around 10 MPH becoming north.
New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

WEDNESDAY
Mostly sunny. High near 87°. North wind between 8 to 13 MPH with gusts as high as 30 MPH.

WEDNESDAY NIGHT
Mostly clear. Low around 69°. Light and variable winds.

[Mike M]

The weather observations below are not current. They are from 4:05 PM this afternoon.