Aldie, VA

1:25 AM EST on February 12, 2012 (GMT -0500)
Elev: 430 ft
Lon: 77.6° W
Lat: 39.0° N
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Active Advisory: Wind Advisory,  Special Statement (US Severe Weather) Active Notice: Public Information Statement
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Weather Underground Broadcast Network
Aldie Weather at a Glance
Updated 1:24 AM EST
Weather Station - report
Stone Ridge, Dulles
Elevation
391 ft
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Now
Overcast
Overcast
Temperature
22.8 °F
Feels Like 16 °F
Wind(mph)
4.9
Sunrise / Set
7:05 AM
5:43 PM
Moon
Waning Gibbous
Tonight
Partly Cloudy 20 °F
Partly Cloudy
Sunday
Partly Cloudy 34 °F
Partly Cloudy
Sunday Night
Clear 20 °F
Clear
Monday
Clear 43 | 29 °F
Clear
Tuesday
Chance of Rain 43 | 32 °F
Chance of Rain
20% chance of precipitation
Wednesday
Mostly Cloudy 49 | 31 °F
Mostly Cloudy
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
29.95 in
Visibility
7.0 miles
Clouds
Scattered Clouds 2800 ft
Mostly Cloudy 4000 ft
Overcast 7000 ft
Moisture
Humidity
44%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KIAD 120552Z 33023G35KT 7SM SCT028 BKN040 OVC070 M05/M14 A2993 RMK AO2 PK WND 33037/0534 SNE22 SLP139 P0000 60000 T10501139 11028 21061 51016
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Weather Radio
Launch Weather Radio
Temperature
Windchill
16 °F
Dew Point
4 °F
Wind
Speed / Dir
4.9 mph from NNW
Wind Gust
4.9 mph
Health
UV
0.0 out of 16
Pollen
.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Regional
View Flu Map
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Regional Forecast for Loudoun
Sunday
partlycloudy Mostly sunny and blustery. Highs in the lower 30s. Northwest winds 20 to 25 mph with gusts up to 45 mph.
Sunday Night
nt_sunny Mostly clear. Lows around 20. West winds 15 to 20 mph with gusts up to 35 mph.
Monday
sunny Sunny. Highs in the lower 40s. West winds 10 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening...then becoming mostly cloudy. Lows in the upper 20s. West winds 5 to 10 mph.
Tuesday
chancerain Cloudy with a 30 percent chance of rain showers. Highs in the lower 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Wednesday
cloudy Mostly cloudy. Highs in the upper 40s.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Thursday
snow Mostly cloudy with a chance of rain or snow showers. Highs in the upper 40s. Chance of precipitation 30 percent.
Thursday Night
nt_snow Mostly cloudy with a chance of rain or snow showers. Lows in the upper 30s. Chance of precipitation 40 percent.
Friday
partlysunny Partly sunny. Highs in the upper 40s.
Friday Night
nt_sunny Mostly clear. Lows in the lower 30s.
Saturday
partlycloudy Mostly sunny. Highs in the upper 40s.
Source: NWS at 12:59 am EST on February 12, 2012
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Nowcast
Wind Advisory in effect until 7 am EST this morning...
Displaying 0–0 of 40 Stations ► ◄
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Forecast
View Calendar 7-Day Weather Forecast for 20105
Sunday, 12
Partly Cloudy
34 | 20 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 13
Clear
43 | 29 °F
Clear
Chance of
Precipitation
0%
Tuesday, 14
Chance of Rain
43 | 32 °F
Chance of Rain
Chance of
Precipitation
20%
Wednesday, 15
Mostly Cloudy
49 | 31 °F
Mostly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Chance Rain
49 | 38 °F
Chance Rain
Chance of
Precipitation
20%
Friday, 17
Chance of Rain
49 | 31 °F
Chance of Rain
Chance of
Precipitation
20%
Saturday, 18
Partly Cloudy
49 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Overnight
nt_chancesnow Snow showers. Little or no snow accumulation. Windy with lows around 20. Northwest winds 20 to 30 mph with gusts up to 50 mph. Chance of snow 80 percent.
Sunday
partlycloudy Mostly sunny and blustery. Highs in the lower 30s. Northwest winds 20 to 25 mph with gusts up to 45 mph.
Sunday Night
nt_sunny Mostly clear. Lows around 20. West winds 15 to 20 mph with gusts up to 35 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 6 30 | 8 30 | 10 25 | 13
Wind 16 mph NW 19 mph WNW 15 mph WNW 8 mph WNW
Humidity 47% 38% 43% 59%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 26% 28% 25% 13%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
7:05 AM
5:43 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Monday
sunny Sunny. Highs in the lower 40s. West winds 10 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening...then becoming mostly cloudy. Lows in the upper 20s. West winds 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 23 | 12 37 | 13 38 | 16 33 | 16
Wind 6 mph West 9 mph WNW 5 mph West 2 mph West
Humidity 60% 35% 39% 49%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 7% 4% 10% 43%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
7:04 AM
5:44 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Tuesday
chancerain Cloudy with a 30 percent chance of rain showers. Highs in the lower 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 21 39 | 26 39 | 30 36 | 29
Wind 0 mph NNW 4 mph ESE 3 mph South 0 mph South
Humidity 65% 60% 69% 77%
Chance of Precip. 10% 20% 20% 20%
Cloud Cover 79% 93% 85% 72%
Conditions Mostly Cloudy Overcast Chance of Rain Mostly Cloudy
Sunrise & Sunset
7:03 AM
5:46 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Wednesday
cloudy Mostly cloudy. Highs in the upper 40s.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 31 45 | 34 42 | 34 37 | 32
Wind 0 mph NE 3 mph NNW 2 mph NW 0 mph NNE
Humidity 84% 64% 73% 86%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 85% 77% 77% 61%
Conditions Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy
Sunrise & Sunset
7:02 AM
5:47 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Thursday
snow Mostly cloudy with a chance of rain or snow showers. Highs in the upper 40s. Chance of precipitation 30 percent.
Thursday Night
nt_snow Mostly cloudy with a chance of rain or snow showers. Lows in the upper 30s. Chance of precipitation 40 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 30 45 | 37 45 | 40 41 | 40
Wind 1 mph NE 5 mph SE 6 mph South 3 mph South
Humidity 85% 71% 83% 83%
Chance of Precip. 10% 10% 30% 30%
Cloud Cover 30% 59% 91% 84%
Conditions Partly Cloudy Chance of Snow Chance of Rain Chance of Snow
Sunrise & Sunset
7:01 AM
5:48 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Friday
partlysunny Partly sunny. Highs in the upper 40s.
Friday Night
nt_sunny Mostly clear. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 40 | 37 46 | 30 42 | 27 37 | 27
Wind 5 mph SW 8 mph WNW 6 mph WNW 4 mph WNW
Humidity 85% 55% 56% 65%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 75% 52% 47% 23%
Conditions Chance of Snow Chance of Rain Chance of Rain Clear
Sunrise & Sunset
7:01 AM
5:48 PM
Source: NWS at 12:59 am EST on February 12, 2012
Regional Forecast for Loudoun
Saturday
partlycloudy Mostly sunny. Highs in the upper 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 25 45 | 25 44 | 28 37 | 27
Wind 4 mph WNW 7 mph WNW 5 mph WNW 4 mph WNW
Humidity 66% 45% 54% 65%
Chance of Precip. 10% 10% 10% 30%
Cloud Cover 23% 25% 36% 23%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
7:01 AM
5:48 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 12, 2012 Max Temp Min Temp
Normal (KIAD) 45 °F 23 °F
Record (KIAD) 74 °F (1999) 3 °F (1964)
Yesterday 42 °F 21 °F
Yesterday's Heating Degree Days: 33
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
PM10
Yesterday Good
OZONE
Current Good
PM2.5
Current Good
OZONE
Sunday Good
PM2.5
Monday Good
PM2.5
Tuesday Good
PM2.5
Wednesday Moderate
PM2.5
Coastal Water Temperatures
Place Temperature
Washington, DC 42.1 °F
Lewisetta, VA 42.1 °F
Solomons Island, MD 43.0 °F
Marine Forecast
Astronomy
Feb. 12, 2012 Rise Set
Actual Time 7:05 AM EST 5:43 PM EST
Civil Twilight 6:38 AM EST 6:11 PM EST
Nautical Twilight 6:07 AM EST 6:42 PM EST
Astronomical Twilight 5:36 AM EST 7:13 PM EST
Moon 11:35 PM EST 9:26 AM EST
Length Of Visible Light 11h 32m
Length of Day
10h 37m
Tomorrow will be 2m 18s longer.
Waning Gibbous, 77% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Visit Astronomy
Today's Extremes
State Highs State Lows
48 °F
Chesapeake
48 °F
Farmville
46 °F
Martinsville
46 °F
Danville
46 °F
Oceana NAS
5 °F
Hot Springs
10 °F
Richlands
14 °F
Wise
15 °F
Galax
15 °F
Blacksburg
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Dulles Airport 23 °F Overcast 12:52 AM EST
Leesburg 23 °F Overcast 1:15 AM EST
Manassas 25 °F Overcast 1:15 AM EST
Warrenton 28 °F Scattered Clouds 1:15 AM EST
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Flight To ETA Status
JBU300
Long Beach, CA 		KIAD 04:38AM On Time
UAL846
Ezeiza, Buenos Aires Province 		KIAD 06:15AM On Time
UAL860
Sao Paulo 		KIAD 06:43AM On Time
UAL981
Al 		KIAD 06:51AM En Route / Delayed
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KIAD)
Wind Speed: 23.0 kts.
Wind Dir: 337° (NNW)
Ceiling: 4000 ft

METAR KIAD 120552Z 33023G35KT 7SM SCT028 BKN040 OVC070 M05/M14 A2993 RMK AO2 PK WND 33037/0534 SNE22 SLP139 P0000 60000 T10501139 11028 21061 51016

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Nearby Events
Event Date Forecast
The Nation's Gun Show 10:00 AM EST 2012-02-12 Clear, 27°F
Feb 16th - Technology Thrills SBDC Thursday, 3-5 PM 3:00 PM EST 2012-02-16 Overcast, 49°F
Vintage 51 9:00 PM EST 2012-02-17 Chance of Snow, 39°F
4th Annual Taste of Greece 4:00 PM EST 2012-02-17 Chance of Rain, 44°F
Acoustic Weekend (Solo) 2:00 PM EST 2012-02-18 Mostly Cloudy, 46°F
Full Band Show (Album Preview) 6:00 PM EST 2012-02-18 Partly Cloudy, 44°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Partly Cloudy, 63 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 12, 2012 Mostly Cloudy, 45 °F
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 63 °F
AT&T National 8:30 AM EDT on June 28, 2012 Average High 86° F/ 29° C
AT&T National 8:30 AM EDT on June 29, 2012 Average High 87° F/ 30° C
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Stone Ridge, Dulles, VA 22.8 °F 16 °F 4 °F 44% NNW  at  4.9 mph 0.00 in / hr 391 ft 1:24 AM EST Rapid Fire  
Bull Run Mountain, Haymarket, VA 17.5 °F 6 °F 9 °F 69% NNW  at  9.0 mph 0.00 in / hr 1035 ft 1:24 AM EST Normal  
Compass Rose Farm, Haymarket, VA 21.6 °F 15 °F 10 °F 59% NW  at  5.0 mph 0.00 in / hr 350 ft 1:24 AM EST Rapid Fire  
Brambleton, Brambleton, VA 23.2 °F 13 °F 11 °F 60% North  at  9.0 mph 0.00 in / hr 310 ft 1:25 AM EST Rapid Fire  
Bull Run Mountain (FBI Unit #2666), Haymarket, VA 21.4 °F 11 °F 10 °F 60% ESE  at  9.0 mph 0.00 in / hr 565 ft 1:18 AM EST Normal  
Bull Run Mtn, Haymarket, VA 20.8 °F 8 °F 10 °F 62% ENE  at  14.0 mph 0.00 in / hr 642 ft 1:25 AM EST Normal
Evergreen Country Club, Haymarket, VA 23.2 °F 16 °F 12 °F 61% NE  at  6.0 mph 0.00 in / hr 436 ft 12:45 AM EST Normal  
Broadlands, Ashburn, VA 22.7 °F 12 °F 11 °F 59% NW  at  10.0 mph 0.00 in / hr 391 ft 1:25 AM EST Rapid Fire  
Snow Hill, Haymarket, VA 21.6 °F 7 °F 11 °F 62% NW  at  18.0 mph 0.00 in / hr 454 ft 1:21 AM EST Normal  
Ridings at Blue Springs, Chantilly, VA 23.1 °F 23 °F 11 °F 60% NNE  at  3.0 mph 0.00 in / hr 303 ft 1:22 AM EST Normal
Middleburg Online, Middleburg, VA 21.9 °F 10 °F 3 °F 43% WNW  at  12.0 mph 0.00 in / hr 525 ft 1:04 AM EST Rapid Fire
Mountainview Estates, Haymarket, VA 21.9 °F 12 °F 10 °F 60% NNW  at  9.0 mph 0.00 in / hr 486 ft 1:25 AM EST Rapid Fire  
Oak Valley/KT4ER, Gainesville, VA 23.8 °F 16 °F 11 °F 57% WNW  at  7.0 mph 0.00 in / hr 496 ft 1:25 AM EST Rapid Fire  
Ashburn Village, Ashburn, VA 22.6 °F 23 °F 9 °F 56% East  at  2.0 mph - / hr 320 ft 1:20 AM EST Normal  
Ashburn Village, Ashburn, VA 22.9 °F 16 °F 10 °F 57% WNW  at  5.0 mph 0.00 in / hr 282 ft 1:25 AM EST Rapid Fire  
Dominion Valley, Haymarket, VA 22.8 °F 8 °F 5 °F 46% North  at  20.8 mph 0.00 in / hr 384 ft 1:24 AM EST Normal  
Emerald Park Estates, Leesburg, VA 21.6 °F 13 °F 9 °F 57% WNW  at  7.0 mph 0.00 in / hr 444 ft 12:59 AM EST Normal  
Belmont Chase, Ashburn, VA 23.0 °F 11 °F 10 °F 56% WNW  at  12.3 mph 0.00 in / hr 318 ft 1:21 AM EST Normal  
APRSWXNET Ashburn VA , Ashburn, VA 23 °F 15 °F 9 °F 55% West  at  7 mph 0.00 in / hr 259 ft 1:04 AM EST MADIS
Piedmont, Haymarket, VA 22.1 °F 13 °F 11 °F 62% North  at  8.1 mph 0.00 in / hr 358 ft 1:25 AM EST Rapid Fire  
Ashburn Village 1, Ashburn, VA 22.5 °F 16 °F 6 °F 49% NW  at  4.5 mph 0.00 in / hr 279 ft 1:24 AM EST Rapid Fire  
Belmont Country Club, Ashburn, VA 22.5 °F 12 °F 10 °F 58% NW  at  9.7 mph 0.00 in / hr 302 ft 1:25 AM EST Rapid Fire
Kincaid Forest, Leesburg, VA 23.3 °F 17 °F 12 °F 62% NNE  at  5.0 mph 0.00 in / hr 294 ft 1:25 AM EST Normal  
Kinsman Farm, Philomont, VA 22.1 °F 10 °F 10 °F 58% NW  at  13.0 mph 0.00 in / hr 510 ft 1:20 AM EST Normal
VADOT I-66_@_Haymarket, Broad Run, VA 16 °F 5 °F -2 °F 45% NW  at  8 mph 0.00 in / hr 429 ft 12:48 AM EST MADIS
VADOT Site_G, Herndon, VA 20 °F 5 °F 15 °F 78% NW  at  18 mph 0.00 in / hr 339 ft 12:54 AM EST MADIS
Greenhill Crossing, Haymarket, VA 23.0 °F 13 °F 10 °F 56% NNW  at  9.0 mph 0.00 in / hr 0 ft 1:20 AM EST Normal
Gracie's Window in FranklinGlen, Fairfax, VA 23.4 °F 15 °F 10 °F 57% NW  at  7.2 mph 0.00 in / hr 365 ft 1:10 AM EST Rapid Fire  
Chantilly Highlands, Herndon, VA 22.1 °F 8 °F 4 °F 46% North  at  16.8 mph 0.00 in / hr 340 ft 1:25 AM EST Rapid Fire  
Chantilly, VA 21.9 °F 15 °F 8 °F 54% NW  at  4.8 mph 0.00 in / hr 308 ft 1:25 AM EST Rapid Fire  
CENTREweather, Centreville, VA 23.2 °F 23 °F 10 °F 57% NNW  at  3.0 mph 0.00 in / hr 262 ft 1:25 AM EST Rapid Fire
Franklin Glen/KR4YO, Fairfax, VA 22.6 °F 9 °F 6 °F 47% North  at  16.8 mph 0.00 in / hr 358 ft 1:25 AM EST Rapid Fire  
Monterey Estates, Herndon, VA 22.1 °F 8 °F 9 °F 56% WSW  at  18.4 mph 0.00 in / hr 390 ft 1:25 AM EST Rapid Fire
Brookfield, Chantilly, VA 22.8 °F 12 °F -8 °F 25% NNW  at  10.5 mph 0.00 in / hr 260 ft 1:24 AM EST Normal  
APRSWXNET Middleburg VA, Middleburg, VA 20 °F 7 °F 7 °F 57% North  at  13 mph 0.00 in / hr 513 ft 1:03 AM EST MADIS
Leesburg, VA 21.9 °F 9 °F -17 °F 16% SW  at  14.9 mph 0.00 in / hr 0 ft 1:25 AM EST Normal  
Broad Run, Potomac Falls, VA 23.3 °F 14 °F 11 °F 59% NNE  at  8.0 mph 0.00 in / hr 111 ft 1:25 AM EST Rapid Fire  
Downtown, Leesburg, VA 21.6 °F 8 °F 6 °F 51% West  at  15.2 mph 0.00 in / hr 344 ft 1:25 AM EST Rapid Fire
Roxbury Heights Estates, Leesburg, VA 20.6 °F 7 °F 8 °F 59% NW  at  15.0 mph - / hr 594 ft 1:19 AM EST Normal  
APRSWXNET Round Hill VA , Lincoln, VA 21 °F 21 °F 10 °F 61% NNE  at  3 mph 0.00 in / hr 1797 ft 12:39 AM EST MADIS
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Wind Advisory
Mobile & Email Alerts Statement as of 9:41 PM EST on February 11, 2012

... Wind Advisory remains in effect until 7 am EST Sunday...

* timing... overnight. Winds will begin to diminish toward dawn.

* Winds... northwest 20 to 30 mph with gusts up to 50 mph.

Precautionary/preparedness actions...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult... especially for high
profile vehicles. Use extra caution.





Special Statement
Mobile & Email Alerts Statement as of 11:04 PM EST on February 11, 2012

... One last round of snow showers tonight...

An upper level disturbance will be pivoting through the Baltimore
Washington area overnight... providing snow to the region. The snow
will be ending across northern Maryland by midnight... affecting
Metro Washington and the northern Shenandoah Valley through 1am...
and reaching southern Maryland and the northern Piedmont of Virginia
between midnight and 2 am.

Look for a quick inch of snow with this disturbance. Roads may be
snow covered and slick if left untreated. Motorists should
exercise caution on the roads tonight.


Public Information Statement
Mobile & Email Alerts Statement as of 12:14 am EST on February 12, 2012

The following are unofficial observations taken during the past 26
hours for the storm that has been affecting our region. Appreciation
is extended to Highway departments... cooperative observers... Skywarn
spotters and media for these reports. This summary is also available
on our home Page at weather.Gov/Baltimore

********************storm total snowfall********************

Location storm total time/date comments
                     snowfall of
                     /inches/ measurement

Maryland

... Allegany County...
   1 NNW Frostburg 1.2 542 PM 2/11 co-op observer

... Anne Arundel County...
   Severn 0.3 700 am 2/11 trained spotter
   BWI Airport T 100 PM 2/11 Airport

... Baltimore County...
   2 NW Long Green 2.3 900 PM 2/11 trained spotter
   1 ESE Glyndon 1.6 901 am 2/11 trained spotter
   1 E Oella 1.0 715 am 2/11 trained spotter
   1 se Garrison 1.0 900 am 2/11 trained spotter
   1 NE Kingsville 0.8 600 am 2/11 trained spotter
   Hunt Valley 0.5 800 am 2/11 broadcast media

... Baltimore City...
   Pimlico 0.5 848 am 2/11 trained spotter

... Carroll County...
   1 SSW Manchester 3.9 1055 PM 2/11 trained spotter
   3 WSW Lineboro 1.2 1035 PM 2/11 trained spotter
   4 NE Millers 1.2 245 am 2/11 co-op observer
   1 W Westminster 1.0 700 am 2/11 public

... Howard County...
   2 N Columbia 1.0 700 am 2/11 trained spotter
   1 SSE Simpsonville 1.0 615 am 2/11 trained spotter

... Montgomery County...
   2 WSW Damascus 2.7 1158 PM 2/11 co-op observer
   5 N Laytonsville 2.5 400 PM 2/11 broadcast media
   3 E Clarksburg 0.7 902 am 2/11 trained spotter
   1 SSE Colesville 0.5 1145 PM 2/11 this evening only

... Washington County...
   1 WSW Cavetown 1.5 359 PM 2/11 trained spotter

Virginia

... Arlington County...
   Reagan National airp 0.2 1209 am 2/12 Airport

... City of Winchester...
   2 S Winchester 1.0 345 am 2/11 trained spotter

... Clarke County...
   1 NNW Berryville 0.6 735 PM 2/11 trained spotter

... Fairfax County...
   1 NNE Herndon 0.6 700 am 2/11 NWS employee
   1 E Oakton 0.5 600 am 2/11 trained spotter
   2 ESE Chantilly 0.4 1208 am 2/12 NWS employee

... Fauquier County...
   Warrenton 0.1 245 PM 2/11 NWS employee

... Frederick County...
   2 ESE Stephens City 0.6 415 am 2/11 trained spotter

... King George County...
   King George 0.3 430 PM 2/11 trained spotter

... Loudoun County...
   1 NNE Dulles interna 1.2 1200 am 2/12 ASOS
   Countryside 0.7 751 am 2/11 NWS employee
   3 NNW Dulles interna 0.6 235 PM 2/11 NWS employee
   Leesburg 0.6 300 am 2/11 public
   Dulles international 0.6 235 PM 2/11 Airport
   3 NW Dulles internat 0.4 500 am 2/11 NWS office

... Prince William County...
   3 NNW Woolsey 1.1 859 am 2/11 trained spotter

... Warren County...
   2 N Linden 1.1 858 am 2/11 trained spotter
   1 WSW Karo 0.5 700 am 2/11 trained spotter

West Virginia

... Berkeley County...
   1 WNW Bunker Hill 1.2 233 PM 2/11 cocorahs

... Grant County...
   Bayard 7.1 720 PM 2/11 co-op observer
   1 E Bismarck 0.1 550 PM 2/11 public

... Jefferson County...
   1 ENE Charles Town 1.0 147 PM 2/11 trained spotter

... Pendleton County...
   6 WSW Cherry Grove 5.0 541 PM 2/11 trained spotter
   2 S Seneca Rocks 0.5 600 PM 2/11 public


***********************peak wind gust***********************

Location Max wind time/date comments
                        gust of
                         mph measurement

Maryland

... Anz533...
   3 E Calvert Cliffs 46 948 PM 2/11 buoy

... Anz537...
   2 WSW Piney Point 53 712 PM 2/11 mesonet
   2 se Cobb Island 47 705 PM 2/11 buoy
   7 SSE Saint George I 46 930 PM 2/11 buoy

... Baltimore County...
   1 WSW Arbutus 46 713 PM 2/11 mesonet

... Frederick County...
   2 SW Flint 53 709 PM 2/11 AWOS
   1 ENE ballenger cree 46 545 PM 2/11 mesonet

... Montgomery County...
   2 se Gaithersburg 46 750 PM 2/11 mesonet

... St. Marys County...
   Point Lookout 48 805 PM 2/11 buoy
   2 ENE Patuxent River 45 436 PM 2/11 AWOS

... Washington County...
   1 E Hagerstown 46 345 PM 2/11 mesonet

Virginia

... Arlington County...
   1 E Cherrydale 53 821 PM 2/11 mesonet
   1 S Reagan National 44 307 PM 2/11 ASOS

... Augusta County...
   3 WSW Moscow 46 230 PM 2/11 mesonet

... Fairfax County...
   1 ESE Newington 47 839 PM 2/11 AWOS

... King George County...
   3 NE Dahlgren 51 847 PM 2/11 mesonet

... Loudoun County...
   2 SSW Leesburg 51 955 PM 2/11 AWOS
   1 NNE Dulles interna 49 722 PM 2/11 ASOS
   2 ENE Lovettsville 47 718 PM 2/11 mesonet


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