Reston, VA

10:33 PM EDT on June 19, 2013 (GMT -0400)
Elev: 423 ft
Lon: 77.3° W
Lat: 39.0° N
Source
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Tropical Weather: Tropical Storm Barry (North Atlantic) Tropical Depression Leepi (Western Pacific)
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Weather Summary
Kari Kiefer
Weather Underground midday recap for Wednesday, June 19, 2013. A transitional weather day occurred Wednesday as some areas of the country experienced active weather. The most active weather developed in the Plains as a storm moved through the Rockies and into the western Plains. This feature carried some moisture that produced areas of scattered showers and thunderstorms from the Oklahoma panhandle through Nebraska. Some of these thunderstorms were quite strong and were related to the thunderstorm that produced a tornado at the Denver International Airport Tuesday.

Meanwhile, a front moved along the eastern seaboard and produced areas of scattered showers and even some thunderstorms from Virginia through the Northeast coast. As the front moved off the coast, rain diminished for most areas. The one exception to this was in North Carolina where the front lingered through the afternoon.

Elsewhere, scattered showers developed through the Northwest and Intermountain West as a Summer storm system moved through the area.

A large high pressure system anchored over the Great Lakes provide dry conditions for much of the northern half of the country from the Plains through much of New England.

The Northeast rose into the 70s and 80s, while the Southeast saw temperatures in the 80s and 90s. The Southern Plains rose into the 90s and 100s, while the Southwest saw similar temperatures.
Weather Underground midday recap for Wednesday, June 19, 2013. A transitional weather day occurred Wednesday as some areas of the country experienced active weather. The most active weather developed in the Plains as a storm moved through the Rockies and into the western Plains. This feature carried some moisture that produced areas of scattered showers and thunderstorms from the Oklahoma panhandle through Nebraska. Some of these thunderstorms were quite strong and were related to the thunderstorm that produced a tornado at the Denver International Airport Tuesday.

Meanwhile, a front moved along the eastern seaboard and produced areas of scattered showers and even some thunderstorms from Virginia through the Northeast coast. As the front moved off the coast, rain diminished for most areas. The one exception to this was in North Carolina where the front lingered through the afternoon.

Elsewhere, scattered showers developed through the Northwest and Intermountain West as a Summer storm system moved through the area.

A large high pressure system anchored over the Great Lakes provide dry conditions for much of the northern half of the country from the Plains through much of New England.

The Northeast rose into the 70s and 80s, while the Southeast saw temperatures in the 80s and 90s. The Southern Plains rose into the 90s and 100s, while the Southwest saw similar temperatures.
More News Articles

Reston Weather at a Glance

Updated 10:33 PM EDT
Elevation
387 ft
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Now
Partly Cloudy
Partly Cloudy
Temperature
68.4 °F
Feels Like 68.4 °F
Wind(mph)
0.7
Sunrise / Set
5:43 AM
8:37 PM
Moon
Waxing Gibbous
Tonight
Partly Cloudy 57 °F
Partly Cloudy
Tomorrow
Partly Cloudy 79 °F
Partly Cloudy
Tomorrow Night
Clear 55 °F
Clear
Friday
Partly Cloudy 82 | 59 °F
Partly Cloudy
Saturday
Clear 84 | 63 °F
Clear
Sunday
Mostly Cloudy 91 | 68 °F
Mostly Cloudy
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
30.12 in
Visibility
10.0 miles
Clouds
Few 5500 ft
Moisture
Humidity
84%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KIAD 200152Z 15004KT 10SM FEW055 20/16 A3013 RMK AO2 SLP200 T02000161
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
68.4 °F
72,72,72,72,72,74,73,74,75,76,73,73,71
Dew Point
63 °F
Wind
Speed / Dir
Calm
Wind Gust
0.7 mph
Health
UV
0 out of 16
Pollen
4.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Wednesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 57F. Winds less than 5 mph.
Thursday
partlycloudy Partly cloudy in the morning, then clear. High of 79F. Winds from the SSE at 5 to 10 mph.
Thursday Night
nt_clear Partly cloudy. Fog overnight. Low of 55F. Winds from the SSE at 5 to 10 mph.
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 82F. Winds from the SSE at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 59F. Winds from the SSE at 5 to 10 mph.
Saturday
clear Clear. High of 84F. Winds from the SSE at 5 to 10 mph.
Saturday Night
nt_partlycloudy Overcast in the evening, then partly cloudy. Low of 63F. Winds from the South at 5 to 10 mph.
Sunday
mostlycloudy Partly cloudy in the morning, then overcast. High of 91F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 68F. Winds from the South at 5 to 10 mph.
Monday
clear Clear. High of 93F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 68F. Winds less than 5 mph.
Tuesday
partlycloudy Clear with a chance of a thunderstorm. High of 95F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 73F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Wednesday
partlycloudy Clear. High of 93F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Thursday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 90F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 73F. Winds less than 5 mph. Chance of rain 40%.
Friday
partlycloudy Partly cloudy. High of 90F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 70F. Winds less than 5 mph. Chance of rain 40%.
Saturday
partlycloudy Clear. High of 88F. Winds less than 5 mph.
Saturday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
Sunday
clear Clear. High of 84F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 70F. Winds less than 5 mph.
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Reston Weather Forecast

View Calendar 10-Day Forecast for 20194 Weather Station KVAVIENN9

Thursday, 20
Partly Cloudy
79 | 55 °F
Partly Cloudy
Chance of
Precipitation
10%
Friday, 21
Partly Cloudy
82 | 59 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 22
Clear
84 | 63 °F
Clear
Chance of
Precipitation
0%
Sunday, 23
Mostly Cloudy
91 | 68 °F
Mostly Cloudy
Chance of
Precipitation
0%
Monday, 24
Clear
93 | 68 °F
Clear
Chance of
Precipitation
0%
Tuesday, 25
Chance of a Thunderstorm
95 | 73 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Wednesday, 26
Partly Cloudy
93 | 73 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 27
Chance of a Thunderstorm
90 | 73 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Friday, 28
Partly Cloudy
90 | 70 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 29
Partly Cloudy
88 | 70 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy in the morning, then clear. High of 79F. Winds from the SSE at 5 to 10 mph.
Thursday Night
nt_clear Partly cloudy. Fog overnight. Low of 55F. Winds from the SSE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 56 74 | 55 78 | 55 62 | 55
Wind 5 mph South 7 mph SSE 9 mph SSE 5 mph SSE
Humidity 94% 52% 46% 79%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 30% 26% 17% 19%
Conditions Fog Partly Cloudy Clear Clear
Sunrise & Sunset
5:43 AM
8:37 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.51], Average RMSE [1.83]
The National Weather Service forecast quality is good. MaxT RMSE [1.88], Average RMSE [2.37] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 82F. Winds from the SSE at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 59F. Winds from the SSE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 55 74 | 54 80 | 56 63 | 60
Wind 3 mph South 6 mph SE 7 mph SE 5 mph SSE
Humidity 92% 49% 42% 88%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 17% 22% 31% 7%
Conditions Fog Clear Partly Cloudy Clear
Sunrise & Sunset
5:43 AM
8:38 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.78], Average RMSE [2.06]
The National Weather Service forecast quality is good. MaxT RMSE [2.19], Average RMSE [2.87] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Saturday
clear Clear. High of 84F. Winds from the SSE at 5 to 10 mph.
Saturday Night
nt_partlycloudy Overcast in the evening, then partly cloudy. Low of 63F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 58 79 | 64 82 | 65 71 | 62
Wind 4 mph South 5 mph SSE 8 mph SSE 6 mph South
Humidity 88% 61% 56% 74%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 1% 18% 93%
Conditions Clear Clear Clear Overcast
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.55], Average RMSE [2.27]
The National Weather Service forecast quality is good. MaxT RMSE [2.26], Average RMSE [2.82] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Sunday
mostlycloudy Partly cloudy in the morning, then overcast. High of 91F. Winds from the South at 5 to 10 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 68F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 60 82 | 63 84 | 63 74 | 69
Wind 4 mph SW 7 mph South 7 mph SSE 7 mph SSE
Humidity 84% 52% 50% 81%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 59% 53% 99% 3%
Conditions Partly Cloudy Partly Cloudy Overcast Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.91], Average RMSE [2.88]
The National Weather Service forecast quality is good. MaxT RMSE [2.40], Average RMSE [2.75] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Monday
clear Clear. High of 93F. Winds from the South at 5 to 10 mph.
Monday Night
nt_clear Clear. Low of 68F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 67 85 | 72 88 | 71 78 | 71
Wind 4 mph SSW 6 mph South 6 mph SSE 4 mph South
Humidity 86% 63% 59% 82%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 16% 5% 20% 9%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.27], Average RMSE [2.59]
The National Weather Service forecast quality is fair. MaxT RMSE [2.86], Average RMSE [2.81] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Tuesday
partlycloudy Clear with a chance of a thunderstorm. High of 95F. Winds less than 5 mph. Chance of rain 20%.
Tuesday Night
nt_partlycloudy Clear with a chance of a thunderstorm. Low of 73F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 68 86 | 71 88 | 70 79 | 71
Wind 2 mph West 2 mph NW 5 mph SSW 7 mph SW
Humidity 85% 58% 55% 76%
Chance of Precip. 10% 20% 10% 10%
Cloud Cover 0% 13% 34% 25%
Conditions Clear Chance of a Thunderstorm Partly Cloudy Clear
Sunrise & Sunset
5:44 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.05], Average RMSE [2.72]
The National Weather Service forecast quality is poor. MaxT RMSE [3.87], Average RMSE [17.90] : Use NWS
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 93F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 73F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 69 87 | 71 91 | 72 80 | 72
Wind 3 mph WSW 3 mph WSW 8 mph SSE 6 mph South
Humidity 79% 56% 53% 77%
Chance of Precip. 10% 0% 0% 10%
Cloud Cover 3% 31% 22% 72%
Conditions Clear Partly Cloudy Clear Mostly Cloudy
Sunrise & Sunset
5:45 AM
8:38 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.71], Average RMSE [2.93]
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy with a chance of a thunderstorm. High of 90F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Thursday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 73F. Winds less than 5 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 71 85 | 72 87 | 76 80 | 74
Wind 4 mph SW 5 mph SSW 5 mph SSW 5 mph SSW
Humidity 83% 66% 68% 87%
Chance of Precip. 10% 0% 10% 10%
Cloud Cover 53% 47% 48% 46%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:45 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.77], Average RMSE [3.07]
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 90F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 70F. Winds less than 5 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 74 | 73 85 | 72 86 | 72 76 | 72
Wind 5 mph SSW 5 mph SSW 4 mph SW 3 mph SW
Humidity 93% 64% 63% 87%
Chance of Precip. 10% 10% 0% 10%
Cloud Cover 42% 49% 68% 70%
Conditions Fog Partly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:45 AM
8:39 PM
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Saturday
partlycloudy Clear. High of 88F. Winds less than 5 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 71 | 70 82 | 68 85 | 68 74 | 67
Wind 1 mph SW 1 mph SSW 3 mph SSE 3 mph South
Humidity 94% 62% 58% 78%
Chance of Precip. 10% 10% 0% 0%
Cloud Cover 54% 35% 15% 6%
Conditions Fog Partly Cloudy Clear Clear
Sunrise & Sunset
5:46 AM
8:39 PM
Source: BestForecast at 4:43 PM EDT on June 19, 2013
Descriptive Forecast
Sunday
clear Clear. High of 84F. 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 71 | 65 81 | 66 83 | 68 77 | 68
Wind 2 mph South 2 mph SSE 4 mph SSE 3 mph SE
Humidity 82% 59% 59% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 7% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Active Notice: Public Information Statement  (US Severe Weather)
Weather History & Almanac
June 19, 2013 Max Temp Min Temp
Normal (KIAD) 85 °F 62 °F
Record (KIAD) 98 °F (1994) 45 °F (1986)
Yesterday 74 °F 65 °F
Yesterday's Cooling Degree Days: 5
Weather History for Reston, VA
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
Wednesday Good
PM2.5
Wednesday Good
OZONE
Thursday Moderate
OZONE
Thursday Good
PM2.5
Friday Moderate
OZONE
Friday Moderate
PM2.5
Saturday Moderate
OZONE
Saturday Moderate
PM2.5
Coastal Water Temperatures
Place Temperature
Washington, DC 75.9 °F
Baltimore, MD 77.0 °F
Solomons Island, MD 75.0 °F
Marine Forecast
Astronomy
Jun. 19, 2013 Rise Set
Actual Time 5:43 AM EDT 8:37 PM EDT
Civil Twilight 5:11 AM EDT 9:10 PM EDT
Nautical Twilight 4:30 AM EDT 9:50 PM EDT
Astronomical Twilight 3:44 AM EDT 10:37 PM EDT
Moon 4:29 PM EDT (6/19) 2:25 AM EDT (6/19)
Length Of Visible Light 15h 58m
Length of Day
14h 54m
Tomorrow will be 0m 4s longer.
Waxing Gibbous, 84% of the Moon is Illuminated
Today
Waxing Gibbous
Jun 23
Full
Jun 30
Last Quarter
Jul 8
New
Jul 15
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Jonesville
82 °F
Martinsville
81 °F
Abingdon
80 °F
Danville
80 °F
Roanoke
55 °F
Hot Springs
55 °F
Blacksburg
56 °F
Richlands
56 °F
Staunton
57 °F
Lynchburg
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
Dulles Airport 68 °F Partly Cloudy 9:52 PM EDT
Leesburg 70 °F Scattered Clouds 10:15 PM EDT
Gaithersburg 64 °F Clear 10:15 PM EDT
Washington 71 °F Partly Cloudy 9:52 PM EDT
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Flight To ETA Status
RPA3350
Providence, RI 		KDCA 10:26PM On Time
DAL2360
Salt Lake City, UT 		KDCA 10:34PM On Time
UAL1268
Houston, TX 		KDCA 10:36PM On Time
ASQ5032
Memphis, TN 		KDCA 10:36PM On Time
LOF370A
St Louis, MO 		KIAD 10:41PM On Time
SWA3830
Denver, CO 		KIAD 10:45PM On Time
FLG3305
Minneapolis, MN 		KIAD 10:46PM On Time
ASQ6034
New Orleans, LA 		KIAD 10:49PM On Time
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Type Condition
Flight Rule: VFR (KIAD)
Wind Speed: 4.0 kts.
Wind Dir: 180° (South)
Ceiling: Unlimited

METAR KIAD 200152Z 15004KT 10SM FEW055 20/16 A3013 RMK AO2 SLP200 T02000161

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Nearby Events
Event Date Forecast
Round Mountain 7:00 PM EDT
2013-06-25		 Chance of a Thunderstorm, 84°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Royals vs. Indians 7:05 PM EDT on June 19, 2013 Clear, 65 °F
Dodgers vs. Yankees 7:05 PM EDT on June 19, 2013 Clear, 72 °F
Rockies vs. Nationals 7:05 PM EDT on June 20, 2013 Clear, 76 °F
Rockies vs. Nationals 7:05 PM EDT on June 21, 2013 Partly Cloudy, 76 °F
Event Date Forecast
Houston vs. Montreal 8:00 PM EDT on June 19, 2013 Forecast not available.
Colorado vs. Chicago 1:30 AM BST on June 20, 2013 Overcast, High 80° F/ 27° C
San Jose vs. D.C. 7:00 PM EDT on June 22, 2013 Partly Cloudy, 79 °F
Vancouver vs. D.C. 7:00 PM EDT on June 29, 2013 Average High 87° F/ 30° C
Event Date Forecast
Toyota/Save Mart 350 12:19 PM PDT on June 23, 2013 Clear, 68 °F
Quaker State 400 7:45 PM EDT on June 29, 2013 Average High 84° F/ 28° C
Event Date Forecast
Travelers Championship 8:30 AM EDT on June 20, 2013 Clear, 58 °F
Travelers Championship 8:30 AM EDT on June 21, 2013 Clear, 58 °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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20194 Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
APRSWXNET Reston VA , Herndon, VA 68 °F - 63 °F 85% SE  at  0 mph 0.00 in / hr 454 ft 10:07 PM EDT MADIS
Shaker Woods, Herndon, VA 68.4 °F - 63 °F 84% South  at  0.7 mph 0.00 in / hr 387 ft 10:33 PM EDT Rapid Fire  
Colvin Run at Hunter Mill Rd (One Lane B, Vienna, VA 64.1 °F - 62 °F 92% NNW  at  0.0 mph 0.00 in / hr 295 ft 10:30 PM EDT Normal  
Lake Fairfax, Vienna, VA 64.3 °F - 62 °F 91% SW  at  0.0 mph 0.00 in / hr 275 ft 10:33 PM EDT Rapid Fire
Falls Brook, Herndon, VA 64.5 °F - 63 °F 93% WSW  at  0.0 mph 0.00 in / hr 280 ft 10:26 PM EDT Normal  
APRSWXNET Reston VA , Herndon, VA 69 °F - 63 °F 81% ENE  at  0 mph 0.00 in / hr 400 ft 9:55 PM EDT MADIS
Great Falls VA, Great Falls, VA 64.8 °F - 62 °F 91% SSW  at  0.0 mph 0.00 in / hr 380 ft 10:30 PM EDT Normal
Hawk Ridge Subdivision, Reston, VA 64.0 °F - 62 °F 94% NNW  at  0.0 mph 0.00 in / hr 300 ft 10:30 PM EDT Normal
Cedar Cove Cluster, Reston, VA 67.3 °F - 63 °F 85% SW  at  0.0 mph 0.00 in / hr 350 ft 10:33 PM EDT Rapid Fire  
APRSWXNET Great Falls V, Great Falls, VA 68 °F - 62 °F 81% ENE  at  0 mph 0.00 in / hr 296 ft 9:59 PM EDT MADIS
VADOT Site_G, Herndon, VA 71 °F 74 °F 60 °F 69% ESE  at  1 mph 0.00 in / hr 339 ft 9:45 PM EDT MADIS
APRSWXNET Great Falls VA , Sterling, VA 67 °F - 63 °F 88% NNE  at  0 mph 0.00 in / hr 321 ft 10:01 PM EDT MADIS
Fox Mill, Herndon, VA 65.3 °F - 27 °F 23% WNW  at  0.0 mph 0.00 in / hr 383 ft 10:33 PM EDT Rapid Fire  
Folkstone, Oak Hill, VA 64.5 °F - 64 °F 97% WNW  at  0.0 mph 0.00 in / hr 375 ft 10:33 PM EDT Rapid Fire  
Wolf Trap Woods, Vienna, VA 65.9 °F - 63 °F 91% SSW  at  0.0 mph 0.00 in / hr 0 ft 10:28 PM EDT Normal  
Chantilly Highlands, Herndon, VA 64.8 °F - 64 °F 99% SE  at  0.0 mph 0.00 in / hr 340 ft 10:33 PM EDT Rapid Fire  
Weatherscience.net, Potomac Falls, VA 64.7 °F - 63 °F 93% WSW  at  0.0 mph 0.00 in / hr 276 ft 10:33 PM EDT Rapid Fire
Trott Ave, Vienna, VA 65.6 °F - 64 °F 93% SSE  at  0.0 mph - / hr 415 ft 10:22 PM EDT Normal  
VADOT Site_C, Oakton, VA 71 °F 74 °F 61 °F 70% North  at  - 0.00 in / hr 290 ft 9:48 PM EDT MADIS
Beulah-Wolf Trap, Vienna, VA 64.8 °F - 62 °F 90% South  at  0.0 mph 0.00 in / hr 430 ft 10:23 PM EDT Normal  
NE Vienna, Vienna, VA 64.6 °F - 62 °F 90% South  at  0.0 mph - / hr 417 ft 10:26 PM EDT Normal  
VADOT Site_E, Oakton, VA 71 °F 73 °F 62 °F 74% North  at  - 0.00 in / hr 353 ft 9:41 PM EDT MADIS
Gracie's Window in FranklinGlen, Fairfax, VA 68.8 °F - 44 °F 41% North  at  0.0 mph 0.00 in / hr 365 ft 10:32 PM EDT Rapid Fire  
Oakton, Oakton, VA 65.0 °F - 63 °F 93% West  at  0.0 mph 0.00 in / hr 455 ft 10:30 PM EDT Normal  
Vienna Woods, Vienna, VA 64.8 °F - 62 °F 91% South  at  0.0 mph - / hr 361 ft 10:27 PM EDT Normal  
NonFedAWOS WASHINGTON DULLES , Dulles, VA 68 °F - 61 °F 78% SSE  at  5 mph 0.00 in / hr 1023 ft 9:52 PM EDT MADIS
Chantilly, VA 64.6 °F - 64 °F 99% North  at  0.0 mph 0.00 in / hr 308 ft 10:30 PM EDT Normal  
Brookfield, Chantilly, VA 68.4 °F - 45 °F 43% SSW  at  0.0 mph 0.00 in / hr 260 ft 10:33 PM EDT Normal  
Rosehaven Estates, Fairfax, VA 68.1 °F - 63 °F 85% ENE  at  0.0 mph 23.69 in / hr 470 ft 10:30 PM EDT Normal  
Fair Lakes / AJ4YI, Fairfax, VA 67.5 °F - 63 °F 85% North  at  0.0 mph 0.00 in / hr 420 ft 10:32 PM EDT Rapid Fire  
APRSWXNET Darnestown1-SW MD , Germantown, MD 64 °F - 61 °F 91% ESE  at  0 mph 0.00 in / hr 395 ft 9:57 PM EDT MADIS
Wind Power Cube, Chantilly, VA 68.0 °F - 64 °F 86% South  at  1.6 mph 0.00 in / hr 203 ft 10:33 PM EDT Normal  
Villa D'este, Fairfax, VA 65.0 °F - 63 °F 94% ESE  at  0.0 mph 0.00 in / hr 354 ft 10:32 PM EDT Normal  
Cobbdale, Fairfax, VA 65.2 °F - 62 °F 89% SE  at  0.0 mph - / hr 394 ft 10:25 PM EDT Normal  
Ashburn Village, Ashburn, VA 69.7 °F - 64 °F 81% ENE  at  0.0 mph - / hr 320 ft 10:24 PM EDT Normal  
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Public Information Statement
Mobile & Email Alerts Statement as of 4:43 PM EDT on June 19, 2013

... Two long track EF-0 tornadoes now confirmed in Maryland from June 13th...

Additional investigations continue in Maryland and Virginia.
Additional tornado confirmations are possible.

A second EF-0 tornado was confirmed today in Saint Marys County
Maryland from the June 13th severe weather outbreak. This joins
the previously confirmed tornado in Montgomery County Maryland.

Additional information can be passed on to the National Weather
Service. These reports are still preliminary and may be adjusted
by additional information received. The Montgomery County segment
below has been refined by a slight westward revision of the
starting point.

The National Weather Service in Sterling expresses its
appreciation to those who assisted in conducting surveys and
provided information used during the surveys... including members
of the emergency management... Skywarn storm spotters... and members
of the public affected by these storms.

... Tornado confirmed in Montgomery County Maryland...

Location... North Potomac to Burtonsville in Montgomery County Maryland
date... June 13 2013
estimated time... 3:41 PM EDT to 3:59 PM EDT
maximum ef-scale rating... EF-0
estimated maximum wind speed... 75 mph
maximum path width... 150 yards
path length... 18.0 miles
beginning lat/Lon... 39.080n / 77.279w
ending lat/Lon... 39.108n / 76.947w
* fatalities... 0
* injuries... 0

* the information in this statement is preliminary and subject to
change pending final review of the event(s) and publication in
NWS storm data.

... Summary...

Eyewitness accounts... radar imagery... and a ground survey concluded
a long track EF-0 tornado occurred in Montgomery County Maryland
on the afternoon of June 13th 2013. Peak winds were estimated at
75 mph. Damage was almost entirely from downed trees. In that
regard numerous homes and a few parked vehicles were damaged by
trees falling onto them. No injuries have been reported.

First consistent damage was noted along Bonnie Dale drive and
Glenhurst court and Road where several trees were downed in the
community. Also... near the intersection of Turkey Foot Road and
Jones Lane in southwest Montgomery County near North Potomac
Maryland a few large trees were over the Road. The tornado raced
east at nearly 60 mph to the northern section of Rockville Maryland.
At least 14 homes were significantly damaged by uprooted trees. As
it continued east to the Norbeck and Aspen Hill area 30 trees were
uprooted in the Manor Country Club Golf course as well as numerous
homes damaged in the surrounding communities from tree damage. Tree
damage was noted along the intercounty connector Route 200 at the
Layhill Road exit. Finally a few trees were downed in Spencerville
and Burtonsville.

Based on the damage, this tornado is rated EF-0, with estimated
wind speeds of 75 mph. The 18.0 mile damage path length was covered
in 18 minutes and had consistent small branch damage with
occasional areas with significant tree damage.

Additionally there was a parallel 7 miles path of damage through south
Rockville and Glenmont Maryland with similar tree damage. This
area was found to be straight line winds from the outflow just
south of the tornado from the parent supercell storm.

The National Weather Service would like to extend its thanks to Montgomery
County fire who confirmed the tornado on the ground during the storm
and Montgomery County emergency management who provided invaluable
assistance during the ground survey.

&&

... EF-0 tornado confirmed in St Marys County MD...

Location... Oakley to California in St Marys County Maryland
date... June 13 2013
estimated time... 3:24 PM to 3:42 PM EDT
maximum ef-scale rating... EF-0
maximum wind speed... 75 mph
maximum path width... 200 yards
length... 13.8 miles
beginning lat/Lon... 38.278n / 76.740w
ending lat/Lon... 38.309n / 76.488w
* fatalities... none
* injuries... none

* the information in this statement is preliminary and subject to change
pending final review of the event(s) and publication in NWS storm data.

... Summary...

A ground survey conducted by the National Weather Service... together
with radar data from the WSR-88D in Sterling VA and Andrews AFB
terminal Doppler weather radar determined there was a EF-0 tornado
that traversed nearly the entire width of Saint Marys County
Maryland. Damage was intermittent along the path and was confined
to tree damage and damage resulting from downed trees. Numerous
large trees were uprooted and some trees were topped. Many were
noted in the vicinity of Oakley Road and Hodges Road... between old
rolling Road and Joan drive and between shady mile drive and Town
Creek Road.

Thunderstorm wind damage also occurred across Coltons Point between
serenity Lane and Point Breeze Road. Many large trees were uprooted
in this area.


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