Gaithersburg, MD

3:53 AM EDT on May 19, 2013 (GMT -0400)
Elev: 466 ft
Lon: 77.2° W
Lat: 39.1° N
Source
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Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
Weather Underground Forecast for Sunday, May 19, 2013.

Severe thunderstorm activity will persist for the Plains on Sunday as a broad low pressure system continues trekking through the region. The system will move from the Northern Plains and into the Great Lakes, creating two frontal boundaries. The warm front associated with this system will extend eastward over the Great Lakes and into the Northeast, kicking up scattered showers and thunderstorms into Sunday night. At the same time, a cold front extends southward from this system which will move off the Central Rockies and into the Central and Southern Plains. Counter-clockwise flow around this broad system will pull moisture and energy into the Plains from the Gulf of Mexico. This will support moderate to heavy showers and thunderstorms in between these two fronts. This system has a history of severe thunderstorm development across the Northern and Central Plains, thus, there is a moderate risk of severe thunderstorm development with large hail, damaging winds, and multiple tornadoes. These severe thunderstorms will most likely develop across central and eastern Oklahoma, through eastern Kansas, and into western Missouri. A slight risk of severe storm development remains in effect from northern Texas, through southern Minnesota and Wisconsin on Sunday. At the same time, the back side of this system will continue spreading moisture over the Intermountain West and Rockies. This will trigger more showers with isolated thunderstorms over the region through Sunday evening.

Meanwhile in the East, a trough of low pressure slowly moves over the East Coast and maintains shower and thunderstorm activity for the Mid-Atlantic states through the Northeast.
More News Articles

Gaithersburg Weather at a Glance

Updated 3:52 AM EDT
Elevation
394 ft
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Now
Overcast
Overcast
Temperature
58.9 °F
Feels Like 58.9 °F
Wind(mph)
0.0
Sunrise / Set
5:52 AM
8:18 PM
Moon
First Quarter
Tonight
Chance of Rain 61 °F
Chance of Rain
80% chance of precipitation
Sunday
Rain Showers 77 °F
Rain Showers
80% chance of precipitation
Sunday Night
Chance of Rain 64 °F
Chance of Rain
50% chance of precipitation
Monday
Chance of a Thunderstorm 81 | 66 °F
Chance of T-storms
40% chance of precipitation
Tuesday
Chance of a Thunderstorm 90 | 64 °F
Chance of a Thunderstorm
20% chance of precipitation
Wednesday
Chance of a Thunderstorm 86 | 66 °F
Chance of T-storms
50% chance of precipitation
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.21 in
Visibility
3.0 miles
Clouds
Mostly Cloudy 300 ft
Overcast 12000 ft
Moisture
Humidity
97%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KGAI 190735Z AUTO 11004KT 3SM BKN003 OVC120 14/14 A3021 RMK AO1
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
58.9 °F
57,57,57,57,57,57,57,57,57,57,57,59,59
Dew Point
58 °F
Wind
Speed / Dir
Calm
Wind Gust
4.0 mph
Health
UV
0 out of 16
Pollen
4.50 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Sunday
rain Overcast with rain showers. Fog early. High of 77F. Winds from the SSE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 64F. Winds from the SSE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 81F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.
Tuesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 90F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain after midnight. Low of 64F. Winds less than 5 mph. Chance of rain 50%.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Thursday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.9 in. possible.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 50F. Winds from the WNW at 10 to 15 mph. Chance of rain 50%.
Saturday
chancerain Clear with a chance of rain. High of 75F. Winds from the NNW at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Saturday Night
nt_chancerain Overcast with a chance of rain. Low of 52F. Winds from the NNE at 5 to 10 mph. Chance of rain 50%.
Sunday
partlycloudy Partly cloudy. High of 70F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Tuesday
clear Clear. High of 73F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 20%.
Wednesday
partlycloudy Clear. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 57F. Winds less than 5 mph.
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Weather Forecast for Gaithersburg MD

View Calendar 10-Day Forecast for station KMDROCKV9

Sunday, 19
Rain Showers
77 | 64 °F
Rain Showers
Chance of
Precipitation
80%
Monday, 20
Chance of a Thunderstorm
81 | 66 °F
Chance of T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
90 | 64 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Wednesday, 22
Chance of a Thunderstorm
86 | 66 °F
Chance of T-storms
Chance of
Precipitation
50%
Thursday, 23
Chance of a Thunderstorm
82 | 64 °F
Chance of T-storms
Chance of
Precipitation
70%
Friday, 24
Chance of a Thunderstorm
77 | 50 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 25
Chance of Rain
75 | 52 °F
Chance of Rain
Chance of
Precipitation
70%
Sunday, 26
Partly Cloudy
70 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Clear
70 | 54 °F
Clear
Chance of
Precipitation
0%
Tuesday, 28
Clear
73 | 57 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
rain Overcast with rain showers. Fog early. High of 77F. Winds from the SSE at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.3 in. possible.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 64F. Winds from the SSE at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 57 73 | 58 71 | 58 68 | 55
Wind 8 mph ESE 10 mph South 11 mph SSE 7 mph SSE
Humidity 85% 62% 61% 63%
Chance of Precip. 80% 80% 80% 60%
Cloud Cover 99% 100% 99% 95%
Conditions Rain Showers Rain Showers Rain Showers Chance of Rain
Sunrise & Sunset
5:52 AM
8:18 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.70], Average RMSE [2.20]
The National Weather Service forecast quality is good. MaxT RMSE [1.61], Average RMSE [1.57] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Monday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 81F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Monday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 58 75 | 60 76 | 61 70 | 63
Wind 6 mph South 6 mph South 7 mph SSW 5 mph SSW
Humidity 76% 57% 56% 76%
Chance of Precip. 50% 40% 40% 30%
Cloud Cover 92% 83% 79% 73%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:51 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.88], Average RMSE [2.47]
The National Weather Service forecast quality is good. MaxT RMSE [2.35], Average RMSE [1.77] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
mostlycloudy Mostly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 90F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain after midnight. Low of 64F. Winds less than 5 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 68 | 64 85 | 66 81 | 66 75 | 69
Wind 3 mph SW 5 mph SW 5 mph SW 4 mph SSW
Humidity 85% 52% 61% 82%
Chance of Precip. 10% 10% 20% 10%
Cloud Cover 75% 70% 71% 100%
Conditions Mostly Cloudy Mostly Cloudy Chance of a Thunderstorm Overcast
Sunrise & Sunset
5:50 AM
8:20 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.83], Average RMSE [1.42]
The National Weather Service forecast quality is fair. MaxT RMSE [2.63], Average RMSE [2.51] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 86F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm and rain. Fog overnight. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 66 81 | 73 81 | 72 78 | 69
Wind 2 mph SE 6 mph ESE 9 mph SSE 7 mph SSW
Humidity 97% 76% 72% 77%
Chance of Precip. 30% 30% 20% 20%
Cloud Cover 74% 91% 93% 7%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:49 AM
8:21 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.45], Average RMSE [2.79]
The National Weather Service forecast quality is fair. MaxT RMSE [3.19], Average RMSE [2.81] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Thursday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 82F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.9 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 69 | 67 77 | 71 79 | 73 69 | 67
Wind 7 mph SSW 8 mph SSW 5 mph SW 8 mph South
Humidity 99% 82% 81% 94%
Chance of Precip. 20% 30% 40% 40%
Cloud Cover 3% 74% 97% 94%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:49 AM
8:22 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.67], Average RMSE [2.05]
The National Weather Service forecast quality is poor. MaxT RMSE [3.62], Average RMSE [3.01] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.
Friday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 50F. Winds from the WNW at 10 to 15 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 66 | 66 74 | 70 71 | 67 65 | 57
Wind 8 mph SSW 9 mph SSW 5 mph WSW 10 mph NW
Humidity 99% 83% 88% 75%
Chance of Precip. 40% 20% 30% 30%
Cloud Cover 99% 96% 86% 0%
Conditions Chance of a Thunderstorm Chance of Rain Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
5:48 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.08], Average RMSE [2.72]
The National Weather Service forecast quality is poor. MaxT RMSE [3.62], Average RMSE [2.99] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Saturday
chancerain Clear with a chance of rain. High of 75F. Winds from the NNW at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Saturday Night
nt_chancerain Overcast with a chance of rain. Low of 52F. Winds from the NNE at 5 to 10 mph. Chance of rain 50%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 49 72 | 54 69 | 55 57 | 54
Wind 9 mph NW 10 mph NNW 8 mph North 5 mph NNE
Humidity 94% 54% 64% 88%
Chance of Precip. 10% 30% 30% 20%
Cloud Cover 0% 0% 50% 97%
Conditions Clear Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:48 AM
8:23 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.47], Average RMSE [2.56]
The National Weather Service forecast quality is fair. MaxT RMSE [3.08], Average RMSE [3.05] : Use NWS
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 70F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 51 66 | 54 63 | 54 60 | 51
Wind 4 mph North 5 mph NE 5 mph ENE 4 mph NE
Humidity 95% 63% 71% 75%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 69% 38% 16% 5%
Conditions Mostly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:47 AM
8:24 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.48], Average RMSE [3.94]
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 66 | 47 64 | 48 56 | 47
Wind 4 mph NE 5 mph NE 4 mph ENE 3 mph East
Humidity 72% 51% 58% 72%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 3% 2% 1% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:46 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.97], Average RMSE [4.73]
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 73F. Winds less than 5 mph.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 57F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 46 70 | 49 73 | 53 60 | 55
Wind 2 mph East 3 mph ESE 5 mph SE 5 mph SSE
Humidity 65% 46% 49% 86%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 3% 12%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:46 AM
8:26 PM
Source: BestForecast at 10:21 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 81F. Winds less than 5 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 55 74 | 58 78 | 62 67 | 62
Wind 3 mph SSE 3 mph SSE 4 mph SSE 3 mph SSE
Humidity 81% 56% 57% 84%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 29% % % %
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 19, 2013 Max Temp Min Temp
Normal (KIAD) 76 °F 52 °F
Record (KIAD) 92 °F (1997) 36 °F (2002)
Yesterday 68 °F 59 °F
Yesterday's Heating Degree Days: 1
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 64.9 °F
Baltimore, MD 66.0 °F
Solomons Island, MD 66.0 °F
Marine Forecast
Astronomy
May. 19, 2013 Rise Set
Actual Time 5:52 AM EDT 8:18 PM EDT
Civil Twilight 5:21 AM EDT 8:49 PM EDT
Nautical Twilight 4:43 AM EDT 9:27 PM EDT
Astronomical Twilight 4:02 AM EDT 10:09 PM EDT
Moon 2:23 PM EDT 2:11 AM EDT
Length Of Visible Light 15h 27m
Length of Day
14h 26m
Tomorrow will be 1m 38s longer.
First Quarter, 61% of the Moon is Illuminated
Today
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
64 °F
Salisbury
64 °F
Patuxent River
61 °F
College Park
61 °F
Annapolis Naval Academy
60 °F
Baltimore
53 °F
Oakland
57 °F
Gaithersburg
57 °F
Westminster
57 °F
Frederick
59 °F
Easton
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 57 °F Overcast 3:35 AM EDT
College Park 62 °F Overcast 3:30 AM EDT
Dulles Airport 59 °F Overcast 2:54 AM EDT
Leesburg 59 °F Overcast 3:35 AM EDT
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Flight To ETA Status
JBU300
Long Beach, CA 		KIAD 05:05AM On Time
UAL977
Dubai 		KIAD 05:56AM On Time
UAL1656
San Diego, CA 		KIAD 06:01AM On Time
SAA207
Yoff 		KIAD 06:20AM On Time
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Type Condition
Flight Rule: LIFR (KGAI)
Wind Speed: 4.0 kts.
Wind Dir: 73° (ENE)
Ceiling: 300 ft

METAR KGAI 190735Z AUTO 11004KT 3SM BKN003 OVC120 14/14 A3021 RMK AO1

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Event data courtesy eviesays.com
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Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Muddy Branch Park, Gaithersburg, MD 58.9 °F 58 °F 97% ENE  at  0.0 mph 0.00 in / hr 394 ft 3:52 AM EDT Rapid Fire  
Avalon at Traville, North Potomac, MD 59.9 °F 55 °F 85% WSW  at  0.0 mph 0.00 in / hr 422 ft 3:52 AM EDT Rapid Fire  
Woodley Gardens, Rockville, MD 59.0 °F 58 °F 95% SE  at  0.0 mph 0.00 in / hr 451 ft 3:50 AM EDT Normal
Montgomery Village, MD 60.1 °F 54 °F 81% North  at  - - / hr 350 ft 3:53 AM EDT Rapid Fire
Gaithersburg, MD 58.6 °F 58 °F 97% SSW  at  0.0 mph 0.00 in / hr 467 ft 3:51 AM EDT Normal  
Bennington, Gaithersburg, MD 59.4 °F 58 °F 95% NNE  at  0.0 mph 0.00 in / hr 380 ft 3:49 AM EDT Normal  
Longhorn, Gaithersburg, MD 58.6 °F 57 °F 95% East  at  2.0 mph 0.00 in / hr 432 ft 3:50 AM EDT Normal
Edinburgh Village, Gaithersburg, MD 58.8 °F 59 °F 99% North  at  0.0 mph 0.00 in / hr 538 ft 3:52 AM EDT Rapid Fire  
Cloppers Mill East, Germantown, MD 59.0 °F 59 °F 100% NNW  at  0.0 mph 0.00 in / hr 315 ft 3:52 AM EDT Rapid Fire
Potomac Woods, Rockville, MD 58.3 °F 58 °F 99% NE  at  2.0 mph 0.00 in / hr 453 ft 3:53 AM EDT Rapid Fire  
Twinbrook, Rockville, MD 59.7 °F 58 °F 95% East  at  0.0 mph 0.00 in / hr 377 ft 3:53 AM EDT Rapid Fire
Flower Valley, Rockville, MD 58.8 °F 55 °F 87% NNE  at  0.0 mph 0.00 in / hr 347 ft 3:52 AM EDT Normal  
Norbeck Grove, Olney, MD 59.0 °F 58 °F 96% NE  at  0.0 mph 0.00 in / hr 443 ft 3:42 AM EDT Normal  
APRSWXNET Olney MD , Olney, MD 59 °F 58 °F 96% East  at  0 mph 0.00 in / hr 521 ft 3:27 AM EDT MADIS
North Germantown, Germantown, MD 54.4 °F 53 °F 94% ESE  at  0.0 mph 0.00 in / hr 439 ft 3:52 AM EDT Normal
APRSWXNET Darnestown1-SW MD , Germantown, MD 58 °F 57 °F 98% ENE  at  0 mph 0.00 in / hr 395 ft 3:25 AM EDT MADIS
The Vistas, Boyds, MD 59.9 °F 59 °F 96% East  at  0.0 mph 0.00 in / hr 369 ft 3:52 AM EDT Rapid Fire  
Olney Mill, Olney, MD 59.0 °F 57 °F 93% SE  at  0.7 mph 0.00 in / hr 466 ft 3:45 AM EDT Normal  
Brooke Grove, Olney, MD 58.8 °F 58 °F 98% North  at  0.0 mph 0.00 in / hr 541 ft 3:52 AM EDT Rapid Fire  
APRSWXNET Bethesda MD , Washington, DC 59 °F 58 °F 95% SSE  at  0 mph 0.00 in / hr 403 ft 3:28 AM EDT MADIS
Parker Ave, Wheaton, Silver Spring, MD 59.7 °F 56 °F 87% SE  at  0.9 mph 0.00 in / hr 390 ft 3:52 AM EDT Rapid Fire  
Park Ridge, Clarksburg, MD 57.9 °F 58 °F 99% SE  at  1.7 mph - / hr 623 ft 3:47 AM EDT Normal  
Bradley Hills, Potomac, MD 58.6 °F 58 °F 98% WSW  at  1.9 mph 0.00 in / hr 314 ft 3:52 AM EDT Rapid Fire  
Bethesda, MD 59.5 °F 58 °F 94% ESE  at  0.0 mph 0.00 in / hr 364 ft 3:52 AM EDT Rapid Fire  
Cedar Ridge, Laytonsville, MD 58.5 °F 58 °F 97% ENE  at  0.0 mph 0.00 in / hr 620 ft 3:52 AM EDT Normal  
APRSWXNET Great Falls V, Great Falls, VA 59 °F 57 °F 94% South  at  0 mph 0.00 in / hr 296 ft 3:23 AM EDT MADIS
Wheaton, Silver Spring, MD 59.9 °F 57 °F 90% NE  at  2.5 mph 0.00 in / hr 350 ft 3:52 AM EDT Rapid Fire  
Bethesda, Bethesda, MD 59.4 °F 58 °F 96% NE  at  0.0 mph 0.00 in / hr 338 ft 3:52 AM EDT Rapid Fire  
Brighton Knolls, Brinklow, MD 57.0 °F 57 °F 100% ENE  at  0.0 mph 0.00 in / hr 476 ft 3:48 AM EDT Rapid Fire  
Great Falls VA, Great Falls, VA 58.2 °F 58 °F 100% East  at  0.0 mph 0.00 in / hr 380 ft 3:50 AM EDT Normal
APRSWXNET Great Falls VA , Great Falls, VA 58 °F 58 °F 100% East  at  0 mph 0.00 in / hr 380 ft 3:26 AM EDT MADIS
Triadelphia Reservoir, Brookeville, MD 58.4 °F 58 °F 97% SSW  at  0.0 mph 0.00 in / hr 100 ft 3:31 AM EDT Normal
APRSWXNET Colesville MD , Silver Spring, MD 57 °F 57 °F 100% ENE  at  0 mph 0.00 in / hr 325 ft 3:33 AM EDT MADIS
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