Washington, DC

3:21 PM EST on February 11, 2012 (GMT -0500)
Elev: 75 ft
Lon: 77.0° W
Lat: 38.9° 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 Saturday, February 11, 2012.

Precipitation will spread across the East Coast on Saturday, while more rain and mountain snow showers are anticipated for parts of the West. A trough of low pressure and associated cold front continue moving eastward across the Eastern Valleys into the Eastern Seaboard. Cool temperatures to the north will allow for snow showers to develop across the Northeast and New England, while rain showers are likely over the Mid-Atlantic states. Rain showers over the Southeastern states should wind down in the early morning hours as the tail end of the system pushes offshore early in the day. Expect the New York metropolitan area to see 1 to 3 inches of snow, while the Washington D.C. area will see a messy combination of snow and freezing rain as high temperatures reach into the lower 40s.

Behind this system, a ridge of high pressure continues to build in from the Plains, pushing cold and dry air in from Canada. This allows for plenty of sunshine to spread from the Plains over the Mississippi River Valley and into the Eastern Valleys. Expect the Northern Plains and Upper Midwest to see highs in the teens again, while the Midwest will see highs in the 20s. Strong winds will accompany this system, pushing windchill values below zero in these areas. The Southern Plains will remain in the 40s on Saturday.

Out West, a trough of low pressure pushes a cold front over the Pacific Northwest and continues pulling moisture onshore with it. This will kick up more rain showers with high elevation snow showers likely in the Cascades. The tail end of the frontal boundary will sweep through California, bringing light rain showers to the coasts and interior valleys. Expect light snow showers in the Sierra Nevadas by Saturday evening.
Weather Underground Forecast for Saturday, February 11, 2012.

Precipitation will spread across the East Coast on Saturday, while more rain and mountain snow showers are anticipated for parts of the West. A trough of low pressure and associated cold front continue moving eastward across the Eastern Valleys into the Eastern Seaboard. Cool temperatures to the north will allow for snow showers to develop across the Northeast and New England, while rain showers are likely over the Mid-Atlantic states. Rain showers over the Southeastern states should wind down in the early morning hours as the tail end of the system pushes offshore early in the day. Expect the New York metropolitan area to see 1 to 3 inches of snow, while the Washington D.C. area will see a messy combination of snow and freezing rain as high temperatures reach into the lower 40s.

Behind this system, a ridge of high pressure continues to build in from the Plains, pushing cold and dry air in from Canada. This allows for plenty of sunshine to spread from the Plains over the Mississippi River Valley and into the Eastern Valleys. Expect the Northern Plains and Upper Midwest to see highs in the teens again, while the Midwest will see highs in the 20s. Strong winds will accompany this system, pushing windchill values below zero in these areas. The Southern Plains will remain in the 40s on Saturday.

Out West, a trough of low pressure pushes a cold front over the Pacific Northwest and continues pulling moisture onshore with it. This will kick up more rain showers with high elevation snow showers likely in the Cascades. The tail end of the frontal boundary will sweep through California, bringing light rain showers to the coasts and interior valleys. Expect light snow showers in the Sierra Nevadas by Saturday evening.
Weather Underground Broadcast Network
Washington Weather at a Glance
Updated 3:20 PM EST
Elevation
90 ft
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Now
Light Snow
Light Snow
Temperature
33.7 °F
Feels Like 22 °F
Wind(mph)
22.0
Sunrise / Set
7:04 AM
5:40 PM
Moon
Waning Gibbous
Today
Chance of Snow 40 °F
Chance of Snow
70% chance of precipitation
Tonight
Chance of Snow 22 °F
Chance of Snow
30% chance of precipitation
Tomorrow
Partly Cloudy 34 | 23 °F
Partly Cloudy
Monday
Clear 43 | 31 °F
Clear
Tuesday
Chance of Rain 47 | 32 °F
Chance of Rain
20% chance of precipitation
Wednesday
Mostly Cloudy 49 | 32 °F
Mostly Cloudy
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
29.67 in
Visibility
3.0 miles
Clouds
Scattered Clouds 2600 ft
Mostly Cloudy 3700 ft
Overcast 12000 ft
Moisture
Humidity
85%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
SPECI KDCA 112011Z 31022G38KT 3SM -SN SCT026 BKN037 OVC120 02/M02 A2968 RMK AO2 PK WND 30038/2007 SNB02 P0000
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Weather Radio
Launch Weather Radio
Temperature
Windchill
22 °F
Dew Point
30 °F
Wind
Speed / Dir
22.0 mph from North
Wind Gust
25.0 mph
Health
UV
1 out of 16
Pollen
.50 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Regional Forecast for District of Columbia
This Afternoon
snow Rain showers...snow showers with isolated thunderstorms. Breezy with highs around 40. Northwest winds 20 to 25 mph with gusts up to 35 mph. Chance of precipitation near 100 percent.
Tonight
nt_cloudy Mostly cloudy in the evening...then becoming partly cloudy. Windy with lows in the lower 20s. Northwest winds 20 to 30 mph with gusts up to 50 mph.
Sunday
partlycloudy Mostly sunny and brisk. Highs in the mid 30s. Northwest winds 20 to 25 mph with gusts up to 35 mph.
Sunday Night
nt_sunny Mostly clear. Lows in the mid 20s. West winds 15 to 20 mph. Gusts up to 35 mph in the evening.
Monday
sunny Sunny. Highs in the lower 40s. West winds 5 to 10 mph.
Monday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Tuesday
cloudy Cloudy. Highs in the mid 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the mid 30s.
Wednesday
cloudy Mostly cloudy. Highs in the lower 50s.
Wednesday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Thursday
cloudy Mostly cloudy. Highs in the lower 50s.
Thursday Night
nt_chancerain Mostly cloudy with a 30 percent chance of showers. Lows in the lower 40s.
Friday
partlycloudy Mostly sunny. Highs in the lower 50s.
Source: NWS at 2:54 PM EST on February 11, 2012
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Updated:  
 
 

 

Nowcast as of 1:48 PM EST on February 11, 2012
A band of snow showers will cross the Washington Metro area through 4 PM. Some rain may be mixed in near the immediate Washington area. Visibility will briefly be very poor in the snow...perhaps as low as a few hundred feet for a short period of time.
Wind Advisory in effect from 7 PM this evening to 7 am EST Sunday...
Forecast
View Calendar 7-Day Weather Forecast for 20001
Saturday, 11
Chance of Snow
40 | 22 °F
Chance of Snow
Chance of
Precipitation
70%
Sunday, 12
Partly Cloudy
34 | 23 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 13
Clear
43 | 31 °F
Clear
Chance of
Precipitation
0%
Tuesday, 14
Chance of Rain
47 | 32 °F
Chance of Rain
Chance of
Precipitation
20%
Wednesday, 15
Mostly Cloudy
49 | 32 °F
Mostly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Chance of Rain
50 | 38 °F
Chance of Rain
Chance of
Precipitation
20%
Friday, 17
Chance of Rain
50 | NA
Chance of Rain
Chance of
Precipitation
40%
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
This Afternoon
snow Rain showers...snow showers with isolated thunderstorms. Breezy with highs around 40. Northwest winds 20 to 25 mph with gusts up to 35 mph. Chance of precipitation near 100 percent.
Tonight
nt_cloudy Mostly cloudy in the evening...then becoming partly cloudy. Windy with lows in the lower 20s. Northwest winds 20 to 30 mph with gusts up to 50 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 35 | 30 39 | 29 33 | 20 28 | 10
Wind 3 mph North 7 mph NNW 21 mph WNW 25 mph NNW
Humidity 77% 66% 57% 45%
Chance of Precip. 90% 70% 70% 30%
Cloud Cover 100% 100% 67% 58%
Conditions Snow Overcast Snow Showers Chance of Snow
Sunrise & Sunset
7:04 AM
5:40 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Sunday
partlycloudy Mostly sunny and brisk. Highs in the mid 30s. Northwest winds 20 to 25 mph with gusts up to 35 mph.
Sunday Night
nt_sunny Mostly clear. Lows in the mid 20s. West winds 15 to 20 mph. Gusts up to 35 mph in the evening.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 23 | 7 31 | 7 32 | 10 28 | 12
Wind 17 mph NNW 19 mph WNW 14 mph WNW 8 mph WNW
Humidity 48% 36% 37% 49%
Chance of Precip. 30% 0% 0% 0%
Cloud Cover 35% 30% 25% 15%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
7:03 AM
5:41 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Monday
sunny Sunny. Highs in the lower 40s. West winds 5 to 10 mph.
Monday Night
nt_cloudy Mostly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 26 | 11 36 | 14 40 | 16 33 | 19
Wind 7 mph West 8 mph West 5 mph West 2 mph WSW
Humidity 53% 39% 39% 55%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 9% 4% 7% 31%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
7:02 AM
5:42 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Tuesday
cloudy Cloudy. Highs in the mid 40s.
Tuesday Night
nt_cloudy Mostly cloudy. Lows in the mid 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 22 43 | 26 41 | 30 37 | 31
Wind 0 mph SW 5 mph SSE 3 mph SSW 1 mph South
Humidity 60% 53% 67% 80%
Chance of Precip. 10% 10% 20% 20%
Cloud Cover 72% 92% 85% 69%
Conditions Mostly Cloudy Chance of Rain Chance of Rain Partly Cloudy
Sunrise & Sunset
7:01 AM
5:43 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Wednesday
cloudy Mostly cloudy. Highs in the lower 50s.
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 | 32 44 | 32 37 | 31
Wind 1 mph WSW 5 mph NNW 3 mph NW 1 mph NNW
Humidity 84% 62% 66% 76%
Chance of Precip. 20% 20% 10% 10%
Cloud Cover 61% 69% 77% 52%
Conditions Chance of Snow Partly Cloudy Mostly Cloudy Partly Cloudy
Sunrise & Sunset
6:59 AM
5:45 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Thursday
cloudy Mostly cloudy. Highs in the lower 50s.
Thursday Night
nt_chancerain Mostly cloudy with a 30 percent chance of showers. Lows in the lower 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 36 | 29 47 | 31 46 | 34 42 | 36
Wind 0 mph NNW 1 mph NNW 0 mph WSW 0 mph SE
Humidity 76% 55% 60% 76%
Chance of Precip. 10% 10% 20% 20%
Cloud Cover 44% 41% 70% 71%
Conditions Partly Cloudy Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
6:59 AM
5:45 PM
Source: NWS at 2:54 PM EST on February 11, 2012
Regional Forecast for District of Columbia
Friday
partlycloudy Mostly sunny. Highs in the lower 50s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 40 | 34 48 | 36 44 | 36 42 | 36
Wind 0 mph NE 3 mph NE 4 mph West 0 mph SE
Humidity 82% 64% 71% 76%
Chance of Precip. 40% 40% 40% 20%
Cloud Cover 57% 59% 57% 71%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
6:59 AM
5:45 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 11, 2012 Max Temp Min Temp
Normal (KDCA) 45 °F 29 °F
Record (KDCA) 76 °F (1932) -15 °F (1899)
Yesterday 47 °F 33 °F
Yesterday's Heating Degree Days: 25
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
Coastal Water Temperatures
Place Temperature
Washington, DC 43.0 °F
Baltimore, MD 42.1 °F
Solomons Island, MD 43.0 °F
Marine Forecast
Astronomy
Feb. 11, 2012 Rise Set
Actual Time 7:04 AM EST 5:40 PM EST
Civil Twilight 6:37 AM EST 6:08 PM EST
Nautical Twilight 6:05 AM EST 6:39 PM EST
Astronomical Twilight 5:34 AM EST 7:10 PM EST
Moon 10:22 PM EST 8:48 AM EST
Length Of Visible Light 11h 30m
Length of Day
10h 35m
Tomorrow will be 2m 16s longer.
Waning Gibbous, 81% 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
44 °F
Patuxent River
43 °F
Salisbury
43 °F
Ocean City
41 °F
Maryland Science Center
39 °F
Annapolis Naval Academy
30 °F
Hagerstown
32 °F
Easton
32 °F
Gaithersburg
33 °F
Baltimore Martin
33 °F
Baltimore
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
Washington 36 °F Light Snow 3:11 PM EST
College Park This station is not reporting.
Andrews AFB 40 °F Mostly Cloudy 2:55 PM EST
Fort Belvoir 36 °F Light Snow 3:13 PM EST
View all Aviation Tools
Flight To ETA Status
CHQ3032
Detroit, MI 		KDCA 03:15PM On Time
JBU698
Fort Lauderdale, FL 		KDCA 03:21PM On Time
ASQ5268
Detroit, MI 		KDCA 03:27PM On Time
EGF4400
Raleigh/Durham, NC 		KDCA 03:30PM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: IFR (KDCA)
Wind Speed: 22.0 kts.
Wind Dir: 360° (North)
Ceiling: 3700 ft

SPECI KDCA 112011Z 31022G38KT 3SM -SN SCT026 BKN037 OVC120 02/M02 A2968 RMK AO2 PK WND 30038/2007 SNB02 P0000

View all Reports & Maps
Nearby Events
Event Date Forecast
Really Really 2:00 PM EST 2012-02-11 Rain, 40°F
Necessary Sacrifices 7:00 PM EST 2012-02-11 Chance of Snow, 36°F
Necessary Sacrifices 2:00 PM EST 2012-02-11 Rain, 40°F
The Deadmeat Tour: Steve Aoki & Datsik 8:00 PM EST 2012-02-11 Chance of Snow, 35°F
Capitol Steps 7:00 PM EST 2012-02-11 Chance of Snow, 36°F
The Persian Stars 8:00 PM EST 2012-02-11 Chance of Snow, 35°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Average High 71° F/ 21° C
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 11, 2012 Rain Showers, 45 °F
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 12, 2012 Mostly Cloudy, 45 °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
Eckington Pl, NE, Washington, DC 33.7 °F 22 °F 30 °F 85% North  at  22.0 mph 0.00 in / hr 90 ft 3:20 PM EST Normal  
Near Northeast - H Street Corridor, Washington, DC 35.1 °F 27 °F 30 °F 83% NW  at  12.0 mph 0.00 in / hr 56 ft 3:16 PM EST Normal  
DCNet DC Municipal Building Washington D, Washington, DC 39 °F 32 °F 28 °F 62% NW  at  10 mph 0.00 in / hr 304 ft 2:45 PM EST MADIS
DCNet Hoover Building Washington DC, Washington, DC 42 °F 35 °F 28 °F 58% NW  at  12 mph 0.00 in / hr 231 ft 2:45 PM EST MADIS
SW Washington, Washington, DC 38.4 °F 29 °F 30 °F 73% NW  at  17.0 mph 0.00 in / hr 22 ft 3:07 PM EST Normal  
VADOT Rt_66_@_Rosslyn, Arlington, VA 41 °F 34 °F 27 °F 58% SSE  at  11 mph 0.00 in / hr 132 ft 2:41 PM EST MADIS
Ward Circle, Washington, DC 32.5 °F 24 °F 29 °F 86% WNW  at  10.0 mph 0.00 in / hr 397 ft 3:19 PM EST Normal
Palisades, Washington, DC 34.0 °F 29 °F 15 °F 46% WSW  at  5.0 mph 0.00 in / hr 211 ft 3:17 PM EST Normal  
Cherrydale, Arlington, VA 33.8 °F 27 °F 30 °F 85% NW  at  8.0 mph 0.00 in / hr 265 ft 3:20 PM EST Normal  
Ashton Heights, Arlington, VA 36.5 °F 33 °F 32 °F 85% North  at  4.5 mph 0.00 in / hr 302 ft 3:15 PM EST Normal
Elm & Larch, SOSCA, Takoma Park, MD 40.7 °F 41 °F 32 °F 70% NW  at  2.0 mph 0.00 in / hr 175 ft 2:36 PM EST Rapid Fire
Ashton Heights, Arlington, VA 37.9 °F 33 °F 30 °F 72% NNW  at  7.0 mph 0.00 in / hr 258 ft 3:00 PM EST Normal  
Brookdale, Bethesda, MD 32.0 °F 27 °F 31 °F 96% WSW  at  5.0 mph 0.00 in / hr 262 ft 3:21 PM EST Rapid Fire  
Riverdale Park, Riverdale, MD 36.1 °F 27 °F 30 °F 79% NW  at  16.0 mph 0.00 in / hr 122 ft 3:21 PM EST Rapid Fire
Bethesda, Bethesda, MD 37.1 °F 37 °F 32 °F 83% North  at  0.0 mph 0.00 in / hr 236 ft 3:21 PM EST Rapid Fire  
Somerset, Chevy Chase, MD 32.4 °F 32 °F 29 °F 87% NW  at  2.0 mph 0.00 in / hr 330 ft 3:20 PM EST Normal
Douglas Park, Arlington, VA 34.1 °F 25 °F 27 °F 75% NW  at  14.0 mph 0.00 in / hr 183 ft 3:21 PM EST Rapid Fire
APRSWXNET Douglas Park VA , Arlington, VA 38 °F 31 °F 29 °F 70% West  at  10 mph 0.01 in / hr 183 ft 3:03 PM EST MADIS
Alexandria, VA, Alexandria, VA 42.3 °F 39 °F 32 °F 66% NE  at  5.4 mph 0.00 in / hr 174 ft 3:10 PM EST Rapid Fire
Del Ray, Alexandria, VA 36.8 °F 33 °F 29 °F 74% SW  at  5.0 mph - / hr 24 ft 3:14 PM EST Normal
Barcroft Neighborhood, Arlington, VA 35.6 °F 31 °F 28 °F 74% West  at  5.0 mph 0.00 in / hr 200 ft 3:20 PM EST Rapid Fire  
DCNet Naval Research Laboratory Washingt, Washington, DC 38 °F 30 °F 23 °F 55% NNW  at  13 mph 0.00 in / hr 119 ft 2:45 PM EST MADIS
Old Town North, Alexandria, VA 36.6 °F 37 °F 27 °F 69% North  at  0.0 mph 0.00 in / hr 18 ft 3:20 PM EST Normal  
APRSWXNET Silver Spring MD , Silver Spring, MD 40 °F 40 °F 30 °F 68% West  at  2 mph 0.00 in / hr 347 ft 2:58 PM EST MADIS
Arlington, VA 33.1 °F 33 °F 33 °F 100% NNW  at  2.0 mph 0.00 in / hr 300 ft 3:12 PM EST Normal  
Episcopal High School, Alexandria, VA 36.2 °F 27 °F 26 °F 66% WNW  at  14.0 mph 0.00 in / hr 290 ft 3:20 PM EST Normal
MDDOT I-495 @ Connecticut Ave, Bethesda, MD 38 °F 38 °F 27 °F 65% South  at  0 mph 0.00 in / hr 230 ft 3:01 PM EST MADIS
Madison Manor, Arlington, VA 34.0 °F 22 °F 26 °F 71% NW  at  21.3 mph 0.01 in / hr 300 ft 3:11 PM EST Normal  
Seminary Ridge - St Stephens & St. Agnes, Alexandria, VA 36.3 °F 29 °F 31 °F 81% North  at  10.0 mph 0.00 in / hr 268 ft 3:20 PM EST Rapid Fire
Langley Fork Park, McLean, VA 32.8 °F 33 °F 29 °F 86% North  at  1.0 mph 0.00 in / hr 272 ft 3:21 PM EST Rapid Fire  
Camp Springs, MD, Camp Springs, MD 40.2 °F 40 °F 30 °F 66% North  at  3.0 mph 0.00 in / hr 282 ft 3:00 PM EST Normal  
Kensington, Kensington, MD 33.6 °F 34 °F 31 °F 87% West  at  2.2 mph 0.00 in / hr 381 ft 3:20 PM EST Normal  
Falls Church, Falls Church, VA 36.5 °F 36 °F 32 °F 83% North  at  3.0 mph 0.04 in / hr 394 ft 3:20 PM EST Normal  
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Wind Advisory
Mobile & Email Alerts Statement as of 12:38 PM EST on February 11, 2012

... Wind Advisory in effect from 7 PM this evening to 7 am EST
Sunday...

The National Weather Service in Baltimore MD/Washington has
issued a Wind Advisory... which is in effect from 7 PM this
evening to 7 am EST Sunday.

* Timing... tonight. The highest gusts are likely this evening.

* Winds... northwest 25 to 35 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 2:39 PM EST on February 11, 2012

... Line of heavy snow showers will move across the Washington Metro
area this afternoon...

At 227 PM EST... Doppler radar indicated a line of heavy snow showers
and snow squalls along a line extending Emmitsburg to Clifton...
moving east at 25 mph.

The snow band will reach downtown Washington just before 300 PM...
and the eastern Washington suburbs around 315 PM. The northern
extent of this line will continue to move across the I-70 corridor
in north central Maryland... reaching the western Baltimore suburbs
around 330 PM.

Visibilities will be reduced to less than one half mile in heavy
snow. This activity will last only a few minutes in any one
location... and upward of 15-20 minutes at the most. A quick dusting
to coating of snow is possible with this activity... though most Road
surfaces are still well above freezing. Localized areas will receive
around half an inch of snow accumulation.

In addition... wind gusts in the line of precipitation will approach
30 mph. Temperatures will drop several degrees behind the
boundary... with wind chills dropping from the low 40s into the 20s.


Lat... Lon 3898 7669 3866 7675 3875 7753 3907 7743
      3973 7745 3972 7668
time... Mot... loc 1927z 289deg 23kt 3969 7734 3904 7732
          3854 7760


Gms



213 PM EST Sat Feb 11 2012

... Line of heavy snow showers will move across portions of north
central Virginia toward the I-95 corridor this afternoon...

At 200 PM EST... Doppler radar indicated a line of heavy snow showers
and snow squalls along a line extending from Haymarket to near
Orange... moving east at 25 mph. A mix of rain and snow is expected
along the southern end of the band... mainly across Orange and
Spotsylvania counties... but a steady moderate to heavy snow further
north and closer to the I-66 corridor.

Visibilities may be reduced to less than one half of a mile in snow.
In addition... wind gusts in the line of precipitation will approach
30 mph. Temperatures will drop several degrees behind the
boundary... with wind chills dropping from the low 40s into the 20s.


Lat... Lon 3810 7783 3815 7809 3813 7815 3818 7828
      3887 7782 3882 7741 3883 7681 3830 7693
      3844 7703 3840 7712 3838 7713 3841 7706
      3841 7704 3828 7699 3825 7704 3814 7707
      3818 7725 3824 7725 3824 7737 3799 7766
time... Mot... loc 1906z 278deg 20kt 3880 7761 3809 7803


Gms



154 PM EST Sat Feb 11 2012

... Line of snow showers moving through the metropolitan areas...

A line of snow showers has begun to move east of the Blue Ridge
mountains into the metropolitan areas of Baltimore and Washington DC
this afternoon. This line of precipitation contains a mixture of snow and
rain. Visibilities may be reduced to less than one half of a mile in
snow... especially across the western suburbs and along the Mason
Dixon line. Closer to the cities... rain is expected to mix in with
the snow... but visibilities will still be reduced to less than a
mile.

In addition... wind gusts in the line of precipitation will approach
30 mph.




Public Information Statement
Mobile & Email Alerts Statement as of 11:11 am EST on February 11, 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...
   Frostburg 0.5 941 PM 2/10 trained spotter

... Anne Arundel County...
   Severn 0.3 700 am 2/11 trained spotter

... Baltimore County...
   2 NW Long Green 1.8 851 am 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
   Hunt Valley 0.5 800 am 2/11 broadcast media

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

... Carroll County...
   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...
   5 N Laytonsville 2.0 710 am 2/11 broadcast media
   2 WSW Damascus 0.9 155 am 2/11 co-op observer
   3 E Clarksburg 0.7 902 am 2/11 trained spotter

Virginia

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

... Clarke County...
   1 NNW Berryville 0.5 830 am 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

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

... Loudoun County...
   Countryside 0.7 751 am 2/11 NWS employee
   Leesburg 0.6 300 am 2/11 public
   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 0.3 1015 PM 2/10 cocorahs

... Grant County...
   Bayard 0.8 756 PM 2/10 co-op observer

... Hampshire County...
   Romney T 510 PM 2/10 public

... Pendleton County...
   6 WSW Cherry Grove 3.0 1000 am 2/11 trained spotter


**********************24 hour snowfall**********************

Location 24 hour time/date comments
                     snowfall of
                     /inches/ measurement

Maryland

... Allegany County...
   Frostburg 0.8 700 am 2/11 co-op observer
   1 S Cumberland T 700 am 2/11 co-op observer

... Anne Arundel County...
   3 SSW South Gate 1.2 800 am 2/11 cocorahs
   3 NE Churchton/river 1.0 600 am 2/11 co-op observer
   2 W Severn 1.0 700 am 2/11 cocorahs
   BWI Airport 0.5 700 am 2/11 Airport
   3 E Laurel 0.5 700 am 2/11 cocorahs
   3 ESE Pasadena 0.5 800 am 2/11 cocorahs
   2 ENE Deale 0.4 700 am 2/11 cocorahs
   2 SSW Severn 0.3 900 am 2/11 cocorahs

... Baltimore County...
   NE Reisterstown 1.1 700 am 2/11 cocorahs
   1 SW Long Green 1.0 700 am 2/11 cocorahs
   2 WNW Catonsville 1.0 700 am 2/11 cocorahs
   1 SW Jacksonville 0.8 800 am 2/11 cocorahs
   1 E Kingsville 0.4 700 am 2/11 cocorahs

... Carroll County...
   se Mount Airy 1.6 700 am 2/11 cocorahs
   1 W Westminster 1.3 700 am 2/11 cocorahs
   4 NE Taneytown 1.0 700 am 2/11 cocorahs
   3 NW Sykesville 1.0 730 am 2/11 cocorahs
   3 NE Taneytown 1.0 700 am 2/11 cocorahs

... Frederick County...
   3 NNW New Market 0.8 900 am 2/11 cocorahs
   1 SSE Thurmont 0.5 700 am 2/11 cocorahs
   4 SSW Frederick 0.3 700 am 2/11 cocorahs
   2 se Emmitsburg T 930 am 2/11 co-op observer

... Harford County...
   1 N Jarrettsville 2.0 800 am 2/11 cocorahs
   2 W Bel Air 1.0 730 am 2/11 cocorahs

... Howard County...
   2 SSE Sykesville 1.8 700 am 2/11 cocorahs
   2 W Elkridge 1.0 700 am 2/11 cocorahs
   2 N Columbia 1.0 700 am 2/11 cocorahs
   3 NW Columbia 1.0 730 am 2/11 cocorahs
   1 E Columbia 0.3 700 am 2/11 cocorahs

... Montgomery County...
   Brighton dam 2.2 900 am 2/11 co-op observer
   3 SW Gaithersburg 0.9 700 am 2/11 cocorahs
   2 W Colesville 0.7 715 am 2/11 cocorahs
   5 NNE Germantown 0.7 700 am 2/11 cocorahs
   1 ESE Rossmoor 0.5 700 am 2/11 cocorahs
   1 ESE Norbeck 0.4 700 am 2/11 cocorahs
   7 N Silver Spring 0.4 700 am 2/11 cocorahs
   1 NNW Takoma Park 0.3 730 am 2/11 cocorahs
   3 SSW Damascus T 1000 PM 2/10 co-op observer

... Prince Georges County...
   7 ESE Brandywine 0.2 800 am 2/11 cocorahs
   1 E Bowie 0.2 800 am 2/11 cocorahs
   ESE Camp Springs 0.2 800 am 2/11 cocorahs
   1 se Oxon Hill 0.1 745 am 2/11 co-op observer
   1 W Oxon Hill 0.1 745 am 2/11 cocorahs
   2 se Forest Heights 0.1 745 am 2/11 cocorahs

... St. Marys County...
   5 NE Mechanicsville T 700 am 2/11 co-op observer

... Washington County...
   Williamsport 0.5 600 am 2/11 co-op observer

Virginia

... Arlington County...
   Reagan National airp T 652 am 2/11 Airport

... Clarke County...
   ESE Berryville 0.7 800 am 2/11 cocorahs
   1 NNW Berryville 0.6 800 am 2/11 cocorahs

... Culpeper County...
   3 N Rixeyville 0.2 700 am 2/11 cocorahs
   6 N Rixeyville 0.1 800 am 2/11 cocorahs

... Fairfax County...
   3 NE Vienna 0.5 700 am 2/11 co-op observer
   3 N Vienna 0.4 700 am 2/11 cocorahs
   1 W Vienna 0.2 730 am 2/11 cocorahs
   3 S Herndon 0.2 700 am 2/11 cocorahs
   2 SSE McLean 0.2 700 am 2/11 cocorahs
   2 S McLean 0.1 700 am 2/11 cocorahs

... Fauquier County...
   Marshall 0.8 845 am 2/11 trained spotter
   3 SSW Broad Run 0.5 800 am 2/11 cocorahs

... Frederick County...
   N Winchester radio 1.4 700 am 2/11 co-op observer
   5 NE Winchester 0.8 700 am 2/11 cocorahs
   2 E Stephens City 0.6 700 am 2/11 cocorahs
   se Middletown 0.6 800 am 2/11 cocorahs
   7 se Winchester 0.1 700 am 2/11 co-op observer

... Highland County...
   1 SW Mill Gap 1.0 530 am 2/11 co-op observer
   1 SW Mustoe 0.5 1159 am 2/10 cocorahs

... Loudoun County...
   Mount Weather 1.0 700 am 2/11 co-op observer
   3 WSW Round Hill 0.7 800 am 2/11 cocorahs
   Dulles international 0.4 700 am 2/11 Airport
   Sterling rcs 0.4 700 am 2/11 co-op observer

... Madison County...
   Haywood T 700 am 2/11 co-op observer

... Shenandoah County...
   2 NE Woodstock 0.6 700 am 2/11 co-op observer
   4 N Strasburg 0.4 700 am 2/11 cocorahs
   Edinburg 0.4 700 am 2/11 co-op observer

... Warren County...
   Front Royal 0.5 600 am 2/11 co-op observer

West Virginia

... Berkeley County...
   2 NW Falling Waters 1.0 700 am 2/11 cocorahs
   1 WNW Bunker Hill 1.0 700 am 2/11 cocorahs

... Grant County...
   Bayard 1.5 700 am 2/11 co-op observer

... Hampshire County...
   2 ESE Springfield 0.1 615 am 2/11 cocorahs

... Mineral County...
   2 SSW Keyser 0.3 700 am 2/11 co-op observer


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