Rockville, MD

10:37 PM EDT on May 23, 2013 (GMT -0400)
Elev: 367 ft
Lon: 77.2° W
Lat: 39.1° N
Source
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 Updated 10:35 PM EDT Get Free Weather Stickers® Share:
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Active Advisory: Flash Flood Warning (US Severe Weather) Active Notice: Local Storm Report
Tropical Weather: Invest 91E (East Pacific)
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Weather Summary
Kari Kiefer
Weather Underground midday recap for Thursday, May 23, 2013.

Severe storms developed over the Southern Plains from northern Texas through northern Oklahoma on Thursday. A trough of low pressure lingered over the region, which pulled moisture and energy in from the Gulf of Mexico. This allowed for showers and thunderstorms to develop in these areas, some of which turned severe with large hail, damaging winds, and periods of heavy rainfall. A brief tornado was reported near Cedar Hill, Texas. Hail 2.5 inches in diameter was reported near Davis, Oklahoma and 65 mph winds were reported at Newcastle and Dickson, Oklahoma. Rainfall totals varied over 2 inches with this system. Oklahoma City reported a mid-day total of 2.92 inches of rain.

Meanwhile in the East, a trough of low pressure over the East Coast allowed for a strong cold front to stretch from the Northeast through the Eastern Valleys. Moisture ahead of this front allowed for showers to develop from the Carolinas through Maine, with some areas of thunderstorms. There was a slight chance that these storms would turn severe from Virginia through New Hampshire, but severe storms have not developed.

Meanwhile Out West, a low pressure system mover the Rockies maintained widespread showers across the Pacific Northwest and Northern Rockies. Strong winds developed ahead of this system from eastern Montana through western Colorado. Gillette, Wyoming reported maximum winds up to 56 mph.
Weather Underground midday recap for Thursday, May 23, 2013.

Severe storms developed over the Southern Plains from northern Texas through northern Oklahoma on Thursday. A trough of low pressure lingered over the region, which pulled moisture and energy in from the Gulf of Mexico. This allowed for showers and thunderstorms to develop in these areas, some of which turned severe with large hail, damaging winds, and periods of heavy rainfall. A brief tornado was reported near Cedar Hill, Texas. Hail 2.5 inches in diameter was reported near Davis, Oklahoma and 65 mph winds were reported at Newcastle and Dickson, Oklahoma. Rainfall totals varied over 2 inches with this system. Oklahoma City reported a mid-day total of 2.92 inches of rain.

Meanwhile in the East, a trough of low pressure over the East Coast allowed for a strong cold front to stretch from the Northeast through the Eastern Valleys. Moisture ahead of this front allowed for showers to develop from the Carolinas through Maine, with some areas of thunderstorms. There was a slight chance that these storms would turn severe from Virginia through New Hampshire, but severe storms have not developed.

Meanwhile Out West, a low pressure system mover the Rockies maintained widespread showers across the Pacific Northwest and Northern Rockies. Strong winds developed ahead of this system from eastern Montana through western Colorado. Gillette, Wyoming reported maximum winds up to 56 mph.
More News Articles

Rockville Weather at a Glance

Updated 10:35 PM EDT
Elevation
451 ft
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Now
Overcast
Overcast
Temperature
65.6 °F
Feels Like 65.6 °F
Wind(mph)
0.0
Sunrise / Set
5:49 AM
8:22 PM
Moon
Waxing Gibbous
Tonight
Thunderstorm 63 °F
T-storms
70% chance of precipitation
Tomorrow
Chance of Rain 66 °F
Chance of Rain
50% chance of precipitation
Tomorrow Night
Chance of Rain 46 °F
Chance of Rain
30% chance of precipitation
Saturday
Partly Cloudy 68 | 48 °F
Partly Cloudy
Sunday
Partly Cloudy 72 | 52 °F
Partly Cloudy
Monday
Partly Cloudy 73 | 55 °F
Partly Cloudy
Tomorrow is forecast to be Much Cooler than today.
Conditions
Pressure
29.82 in
Visibility
10.0 miles
Clouds
Mostly Cloudy 6500 ft
Overcast 11000 ft
Moisture
Humidity
94%
Rainfall
0.12 in
Snow Depth
Not available.
METAR
METAR KGAI 240235Z AUTO 00000KT 10SM BKN065 OVC110 18/17 A2982 RMK AO1 LTG DSNT SE
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
65.6 °F
68,68,68,66,64,64,64,66,66,64,64,64,64
Dew Point
64 °F
Wind
Speed / Dir
Calm
Wind Gust
0.0 mph
Health
UV
0 out of 16
Pollen
5.90 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Thursday Night
nt_tstorms Mostly cloudy with thunderstorms, then a chance of rain after midnight. Low of 63F. Winds from the SW at 5 to 10 mph shifting to the WNW after midnight. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Friday
chancerain Mostly cloudy with a chance of rain. High of 66F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph. Chance of rain 50%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 46F. Winds from the NNW at 10 to 15 mph. Chance of rain 30%.
Saturday
partlycloudy Partly cloudy. High of 68F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph.
Saturday Night
nt_partlycloudy Clear. Low of 48F. Breezy. Winds from the NW at 10 to 20 mph.
Sunday
partlycloudy Clear in the morning, then partly cloudy. High of 72F. Breezy. Winds from the NW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds from the NW at 5 to 10 mph.
Monday
partlycloudy Clear in the morning, then overcast. High of 73F. Winds from the WNW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy. High of 81F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 59F. Winds from the SSE at 5 to 10 mph.
Wednesday
partlycloudy Partly cloudy. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Thursday
partlycloudy Clear with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 20%.
Thursday Night
nt_partlycloudy Clear. Low of 68F. Winds less than 5 mph.
Friday
clear Clear. High of 90F. Winds less than 5 mph.
Friday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Saturday
clear Clear. High of 90F. Winds from the SSW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Sunday
clear Clear. High of 90F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
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Nowcast as of 10:33 PM EDT on May 23, 2013
At 1028 PM EDT...Doppler radar detected a line of thunderstorms. These thunderstorms were located along a line extending from Greenbelt to Lake Ridge...moving east at 10 mph. Locations that likely will be impacted include Landover Hills...nationals park...the district...New Carrollton... Woodbridge...Kenilworth...Anacostia...Jefferson Manor and Fairmount Heights. Occasional cloud to ground lightning is occurring. Move indoors until the storm has passed. Gusty winds of 30 to 40 mph can be expected. Heavy downpours could reduce visibilities and cause water to pond on roadways. Additional rainfall up to one-half inch can be expected.

Weather Forecast for Rockville MD

View Calendar 10-Day Forecast for station KMDROCKV9

Friday, 24
Chance of Rain
66 | 46 °F
Chance of Rain
Chance of
Precipitation
50%
Saturday, 25
Partly Cloudy
68 | 48 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 26
Partly Cloudy
72 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Partly Cloudy
73 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Partly Cloudy
81 | 59 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Partly Cloudy
81 | 66 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 30
Chance of a Thunderstorm
86 | 68 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Friday, 31
Clear
90 | 70 °F
Clear
Chance of
Precipitation
0%
Saturday, 1
Clear
90 | 70 °F
Clear
Chance of
Precipitation
0%
Sunday, 2
Clear
90 | NA
Clear
Chance of
Precipitation
0%
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Friday
chancerain Mostly cloudy with a chance of rain. High of 66F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph. Chance of rain 50%.
Friday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 46F. Winds from the NNW at 10 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 56 62 | 49 58 | 44 50 | 38
Wind 13 mph WNW 20 mph NW 16 mph NNW 13 mph NW
Humidity 73% 63% 59% 65%
Chance of Precip. 70% 50% 50% 30%
Cloud Cover 81% 86% 63% 45%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.99], Average RMSE [2.26]
The National Weather Service forecast quality is good. MaxT RMSE [2.34], Average RMSE [1.39] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy. High of 68F. Breezy. Winds from the NW at 20 to 25 mph with gusts to 30 mph.
Saturday Night
nt_partlycloudy Clear. Low of 48F. Breezy. Winds from the NW at 10 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 38 63 | 39 65 | 39 54 | 35
Wind 15 mph NW 20 mph NNW 18 mph NNW 10 mph NW
Humidity 64% 39% 37% 48%
Chance of Precip. 30% 10% 10% 0%
Cloud Cover 42% 43% 17% 4%
Conditions Chance of Rain Partly Cloudy Clear Clear
Sunrise & Sunset
5:48 AM
8:22 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.08], Average RMSE [1.48]
The National Weather Service forecast quality is fair. MaxT RMSE [2.55], Average RMSE [2.06] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Sunday
partlycloudy Clear in the morning, then partly cloudy. High of 72F. Breezy. Winds from the NW at 10 to 20 mph.
Sunday Night
nt_clear Clear. Low of 52F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 50 | 35 63 | 36 67 | 42 56 | 37
Wind 12 mph NW 15 mph NW 11 mph NW 7 mph NNW
Humidity 54% 36% 39% 49%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 18% 36% 1%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
5:48 AM
8:23 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.66], Average RMSE [2.75]
The National Weather Service forecast quality is fair. MaxT RMSE [3.15], Average RMSE [2.49] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Monday
partlycloudy Clear in the morning, then overcast. High of 73F. Winds from the WNW at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 33 66 | 40 69 | 45 60 | 40
Wind 7 mph NW 9 mph NW 5 mph WNW 4 mph WNW
Humidity 49% 39% 40% 49%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 100% 0%
Conditions Clear Clear Overcast Clear
Sunrise & Sunset
5:47 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.07], Average RMSE [2.10]
The National Weather Service forecast quality is poor. MaxT RMSE [3.84], Average RMSE [3.04] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 81F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 59F. Winds from the SSE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 40 72 | 50 78 | 55 64 | 59
Wind 5 mph North 3 mph East 4 mph SSE 5 mph SSE
Humidity 48% 46% 46% 82%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 99% 0%
Conditions Clear Clear Overcast Clear
Sunrise & Sunset
5:46 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.11], Average RMSE [2.46]
The National Weather Service forecast quality is poor. MaxT RMSE [3.94], Average RMSE [2.94] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_cloudy Overcast with a chance of a thunderstorm. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 58 76 | 63 78 | 65 69 | 64
Wind 3 mph SSW 2 mph SW 4 mph SSW 7 mph SSW
Humidity 81% 65% 63% 86%
Chance of Precip. 0% 0% 10% 10%
Cloud Cover 5% 37% 73% 90%
Conditions Clear Partly Cloudy Mostly Cloudy Overcast
Sunrise & Sunset
5:46 AM
8:26 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.92], Average RMSE [2.72]
The National Weather Service forecast quality is fair. MaxT RMSE [3.26], Average RMSE [3.02] : Use NWS
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Thursday
partlycloudy Clear with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 20%.
Thursday Night
nt_partlycloudy Clear. Low of 68F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 63 79 | 67 80 | 69 71 | 69
Wind 5 mph WSW 4 mph SW 4 mph SSW 4 mph SSW
Humidity 85% 65% 66% 94%
Chance of Precip. 10% 0% 10% 10%
Cloud Cover 22% 29% 25% 20%
Conditions Clear Partly Cloudy Clear Clear
Sunrise & Sunset
5:45 AM
8:26 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.35], Average RMSE [3.51]
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Friday
clear Clear. High of 90F. Winds less than 5 mph.
Friday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 71 | 67 84 | 68 82 | 69 74 | 68
Wind 3 mph SSW 4 mph SSW 5 mph South 5 mph South
Humidity 87% 58% 65% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 13% 9% 7% 6%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:45 AM
8:27 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.23], Average RMSE [4.54]
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Saturday
clear Clear. High of 90F. Winds from the SSW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 67 85 | 67 84 | 68 72 | 67
Wind 5 mph SSW 5 mph SSW 5 mph SSW 4 mph SW
Humidity 79% 55% 59% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 6% 5% 2% 3%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:44 AM
8:28 PM
Source: BestForecast at 9:54 AM EDT on May 23, 2013
Descriptive Forecast
Sunday
clear Clear. High of 90F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 65 84 | 67 88 | 71 70 | 67
Wind 3 mph WSW 3 mph WSW 2 mph WSW 1 mph WNW
Humidity 77% 56% 59% 92%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 7% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:44 AM
8:28 PM
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 23, 2013 Max Temp Min Temp
Normal (KDCA) 77 °F 59 °F
Record (KDCA) 97 °F (1925) 45 °F (1961)
Yesterday 86 °F 70 °F
Yesterday's Cooling Degree Days: 13
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 73.0 °F
Baltimore, MD 73.0 °F
Solomons Island, MD 68.0 °F
Marine Forecast
Astronomy
May. 23, 2013 Rise Set
Actual Time 5:49 AM EDT 8:22 PM EDT
Civil Twilight 5:18 AM EDT 8:52 PM EDT
Nautical Twilight 4:40 AM EDT 9:31 PM EDT
Astronomical Twilight 3:57 AM EDT 10:14 PM EDT
Moon 6:52 PM EDT (5/23) 4:31 AM EDT (5/23)
Length Of Visible Light 15h 34m
Length of Day
14h 32m
Tomorrow will be 1m 28s longer.
Waxing Gibbous, 98% of the Moon is Illuminated
Today
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
84 °F
College Park
84 °F
Westminster
80 °F
Phillips Army Airfield
80 °F
Baltimore
80 °F
Salisbury
55 °F
Oakland
62 °F
Ocean City
62 °F
Frederick
62 °F
Cumberland
62 °F
Fort Meade
Record Extremes
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
Gaithersburg 64 °F Overcast 10:35 PM EDT
College Park 69 °F Overcast 10:20 PM EDT
Washington 72 °F Thunderstorm 10:32 PM EDT
Dulles Airport 64 °F Heavy Thunderstorm Rain Mist 10:23 PM EDT
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Flight To ETA Status
UAL531
Houston, TX 		KDCA 10:30PM On Time
AAL1520
Miami, FL 		KDCA 10:33PM On Time
AWE855
Tampa, FL 		KDCA 10:34PM On Time
AWE1062
Charlotte, NC 		KDCA 10:36PM On Time
CPZ5818
Minneapolis, MN 		KIAD 10:37PM On Time
SWA3162
Chicago, IL 		KIAD 10:38PM On Time
SWA1471
Denver, CO 		KIAD 10:40PM On Time
LOF3384
St Louis, MO 		KIAD 10:43PM On Time
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Type Condition
Flight Rule: VFR (KGAI)
Wind Speed: 0.0 kts.
Wind Dir: 261° (West)
Ceiling: 6500 ft

METAR KGAI 240235Z AUTO 00000KT 10SM BKN065 OVC110 18/17 A2982 RMK AO1 LTG DSNT SE

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Nearby Events
Event Date Forecast
The Pomegranate Seed 6:00 PM EDT
2013-04-18		 Mostly Cloudy, 75°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Orioles vs. Blue Jays 7:07 PM EDT on May 23, 2013 Rain, High 68° F/ 20° C
Twins vs. Tigers 7:08 PM EDT on May 23, 2013 Chance of Rain, 45 °F
Phillies vs. Nationals 7:05 PM EDT on May 24, 2013 Chance of Rain, 59 °F
Phillies vs. Nationals 7:15 PM EDT on May 25, 2013 Partly Cloudy, 61 °F
Event Date Forecast
Angers vs. Sedan 8:30 PM CEST on May 24, 2013 Chance of Rain, High 48° F/ 9° C
Dijon vs. Guingamp 8:30 PM CEST on May 24, 2013 Chance of Rain, High 50° F/ 10° C
Portland vs. D.C. 7:00 PM EDT on May 25, 2013 Partly Cloudy, 61 °F
Toronto FC vs. D.C. 7:00 PM EDT on June 15, 2013 Average High 85° F/ 29° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Partly Cloudy, 74 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Chance of a Thunderstorm, 72 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 25, 2013 Chance of a Thunderstorm, 68 °F
AT&T National 8:30 AM EDT on June 27, 2013 Average High 87° F/ 30° C
AT&T National 8:30 AM EDT on June 28, 2013 Average High 86° F/ 29° C
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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Woodley Gardens, Rockville, MD 65.6 °F - 64 °F 94% West  at  0.0 mph 0.00 in / hr 451 ft 10:35 PM EDT Normal
Avalon at Traville, North Potomac, MD 66.8 °F - 62 °F 84% West  at  1.3 mph 0.00 in / hr 422 ft 10:36 PM EDT Rapid Fire  
Potomac Woods, Rockville, MD 64.8 °F - 64 °F 99% West  at  2.0 mph 0.00 in / hr 453 ft 10:37 PM EDT Normal  
Twinbrook, Rockville, MD 66.0 °F - 64 °F 94% SSW  at  0.0 mph 0.37 in / hr 377 ft 10:37 PM EDT Rapid Fire
Muddy Branch Park, Gaithersburg, MD 65.0 °F - 64 °F 97% WNW  at  4.0 mph 0.00 in / hr 394 ft 10:37 PM EDT Rapid Fire  
Flower Valley, Rockville, MD 65.3 °F - 61 °F 86% NNW  at  0.0 mph 0.00 in / hr 347 ft 10:32 PM EDT Normal  
Longhorn, Gaithersburg, MD 64.2 °F - 63 °F 96% North  at  0.0 mph 0.00 in / hr 432 ft 10:35 PM EDT Normal
Gaithersburg, MD 63.9 °F - 63 °F 97% NE  at  0.0 mph 0.00 in / hr 467 ft 10:32 PM EDT Normal  
APRSWXNET Bethesda MD , Washington, DC 65 °F - 63 °F 94% WSW  at  0 mph 0.00 in / hr 403 ft 10:10 PM EDT MADIS
Montgomery Village, MD 66.0 °F - 60 °F 82% North  at  - - / hr 350 ft 10:37 PM EDT Rapid Fire
NewboldDrive, Bethesda, MD 65.7 °F - 64 °F 96% SE  at  0.0 mph 0.12 in / hr 331 ft 10:37 PM EDT Rapid Fire  
Bennington, Gaithersburg, MD 64.8 °F - 64 °F 97% NNE  at  0.0 mph 0.00 in / hr 380 ft 10:35 PM EDT Normal  
APRSWXNET Olney MD , Olney, MD 65 °F - 64 °F 96% NE  at  0 mph 0.01 in / hr 521 ft 10:07 PM EDT MADIS
Edinburgh Village, Gaithersburg, MD 64.0 °F - 64 °F 99% North  at  0.0 mph 0.00 in / hr 538 ft 10:36 PM EDT Rapid Fire  
Bradley Hills, Potomac, MD 65.2 °F - 64 °F 95% ENE  at  1.9 mph 0.12 in / hr 314 ft 10:37 PM EDT Rapid Fire  
Norbeck Grove, Olney, MD 65.1 °F - 64 °F 97% NE  at  0.0 mph 0.01 in / hr 443 ft 10:22 PM EDT Normal  
Cloppers Mill East, Germantown, MD 64.4 °F - 64 °F 100% West  at  1.0 mph 0.00 in / hr 315 ft 10:36 PM EDT Rapid Fire
Parker Ave, Wheaton, Silver Spring, MD 67.8 °F - 63 °F 84% NNE  at  0.0 mph 0.02 in / hr 390 ft 10:36 PM EDT Rapid Fire  
Bethesda, MD 66.4 °F - 63 °F 90% West  at  0.0 mph 0.04 in / hr 364 ft 10:36 PM EDT Rapid Fire  
APRSWXNET Darnestown1-SW MD , Germantown, MD 63 °F - 62 °F 98% West  at  0 mph 0.00 in / hr 395 ft 10:09 PM EDT MADIS
Falcon Ridge, Great Falls, VA 64.5 °F - 64 °F 100% WNW  at  0.0 mph 0.00 in / hr 275 ft 10:01 PM EDT Normal  
Bethesda, Bethesda, MD 66.4 °F - 64 °F 93% West  at  1.0 mph 0.05 in / hr 338 ft 10:36 PM EDT Rapid Fire  
Wheaton, Silver Spring, MD 67.7 °F - 64 °F 88% NW  at  0.2 mph 0.08 in / hr 350 ft 10:37 PM EDT Rapid Fire  
Olney Mill, Olney, MD 64.9 °F - 63 °F 92% NW  at  0.7 mph 0.01 in / hr 466 ft 10:29 PM EDT Normal  
APRSWXNET Great Falls V, Great Falls, VA 66 °F - 63 °F 90% NW  at  0 mph 0.00 in / hr 296 ft 10:15 PM EDT MADIS
APRSWXNET Laytonsville MD , Gaithersburg, MD 64 °F - 63 °F 98% NW  at  0 mph 0.00 in / hr 597 ft 10:13 PM EDT MADIS
Breewood, Silver Spring, MD 66.4 °F - 65 °F 95% NNW  at  0.0 mph 0.09 in / hr 347 ft 10:27 PM EDT Normal  
APRSWXNET Colesville MD , Silver Spring, MD 62 °F - 62 °F 100% NNE  at  0 mph 0.00 in / hr 325 ft 9:54 PM EDT MADIS
The Vistas, Boyds, MD 64.4 °F - 64 °F 97% West  at  2.0 mph 0.00 in / hr 369 ft 10:37 PM EDT Rapid Fire  
Great Falls VA, Great Falls, VA 63.3 °F - 63 °F 99% WSW  at  5.0 mph 1.30 in / hr 380 ft 10:35 PM EDT Normal
APRSWXNET Great Falls VA , Great Falls, VA 63 °F - 63 °F 99% North  at  0 mph 0.00 in / hr 380 ft 10:03 PM EDT MADIS
Kemp Mill, Silver Spring, MD 66.6 °F - 66 °F 99% North  at  0.0 mph 0.10 in / hr 270 ft 10:36 PM EDT Rapid Fire  
Kemp Mill/Silver Spring, Silver Spring, MD 70.6 °F 71 °F 64 °F 81% SW  at  0.0 mph 0.00 in / hr 400 ft 8:10 PM EDT Rapid Fire
North Germantown, Germantown, MD 59.0 °F - 58 °F 98% North  at  0.8 mph 0.00 in / hr 439 ft 10:36 PM EDT Normal
Somerset, Chevy Chase, MD 65.8 °F - 64 °F 95% West  at  0.0 mph 0.31 in / hr 330 ft 10:35 PM EDT Normal
APRSWXNET Silver Spring MD , Silver Spring, MD 67 °F - 65 °F 93% SE  at  0 mph 0.01 in / hr 347 ft 10:15 PM EDT MADIS
Bethesda, Bethesda, MD 67.5 °F - 40 °F 37% North  at  0.0 mph 0.06 in / hr 236 ft 10:36 PM EDT Rapid Fire  
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Flash Flood Warning
Mobile & Email Alerts Statement as of 8:43 PM EDT on May 23, 2013

The National Weather Service in Sterling Virginia has extended the

* Flash Flood Warning for...
north central Montgomery County in central Maryland...
northwestern Howard County in central Maryland...

* until 1230 am EDT

* at 837 PM EDT... several Road closures were reported between
Clarksburg and Cooksville... with a swift water Rescue reported in
Lisbon. Radar estimates that 3 to 4 inches of rain fell across
portions of the warned area between Damascus and Cooksville. With
flash flooding still ongoing... the warning is being extended.

* Some locations that are affected by the heavy rain include Boyds...
Damascus... Lisbon... Clarksburg... and Glenwood.

Flash flooding has been reported on mcgruder branch... and flash
flooding has closed Maryland State Route 97 near the intersection of
Frederick Road.

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

To report flash flooding... have the nearest law enforcement agency
relay your report to the National Weather Service forecast office in
Sterling Virginia.

Lat... Lon 3936 7706 3936 7705 3935 7703 3936 7697
      3936 7693 3934 7688 3932 7685 3932 7684
      3912 7727 3921 7734 3932 7719 3937 7710




Local Storm Report
Mobile & Email Alerts


05/23/2013 0835 PM

2 miles WNW of Laytonsville, Montgomery County.

Flash flood, reported by dept of highways.


            Woodfield Road at Churchill Downs Road closed due to
            high water.





05/23/2013 0730 PM

2 miles SSW of Damascus, Montgomery County.

Flash flood, reported by trained spotter.


            Loghouse Road impassable at Magruder branch





05/23/2013 0715 PM

2 miles WSW of Damascus, Montgomery County.

Flash flood, reported by co-op observer.


            Kings Valley Road and kingstead Road is flooded



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