More Info Released on Herndon Tornado — After detailed analysis, the National Weather Service says a tornado that touched down in Herndon on April 6 was one of seven in the area during that storm. It is now estimated the tornado first came to ground near the Dulles Greene and Capstone apartment complexes in Herndon and lasted about five minutes. It downed numerous trees, including one that was thrown into the window of an apartment building. [National Weather Service]
Reston Islamic School Spotlighted by NPR — Al Fatih Academy (12300 Pinecrest Road) was the subject of a segment on today’s Morning Edition on NPR. The academy’s goal is “to cultivate and nurture a thriving American Muslim identity that balances religious, academic and cultural knowledge and imparts the importance of civic involvement and charitable work.” [NPR]
Local College Student Fighting Pollution — Reston’s Elizabeth Merin, a junior biosystems engineering major at Virginia Tech, is part of a group of students working to scrutinize emissions at the Radford Army Ammunition Plant in Blacksburg, as well as pollution in the New River Valley. The students have started a chapter of the Blue Ridge Environmental Defense League, calling their group Citizens for Arsenal Accountability. [Roanoke Times]
Herndon Farmers Market Now Open, Rain and All — The opening day of the Herndon Farmers Market, which goes through 12:30 p.m. today, is on despite this morning’s rainy weather. It will take place each Thursday into November, in front of the caboose on Lynn Street. [Reston Now/Twitter]
The National Weather Service has confirmed that a small tornado touched down in Herndon during Thursday afternoon’s storm.
According to the Storm Prediction Center’s report, the tornado occurred in the area of Crestview Drive at 1:36 p.m.:
SIX TO 10 TREES DOWN IN VICINITY OF BUILDERS ROAD AND CRESTVIEW DRIVE … ALL FALLING TOWARDS THE NORTH. WOOD FENCING ALONG CRESTVIEW DR BLOWN TO THE WEST.
The tornado was classified as an EF-0, the lowest level on the scale, with a top wind speed between 60 and 70 mph. Preliminary damage survey results show it was on the ground for about three-quarters of a mile, with a maximum width of 25 yards.
NWS Baltimore/Washington has confirmed 2 EF-0 tornadoes today. Further investigation & reviews in other locations will be completed Friday. pic.twitter.com/CfUXxVnUWw
— NWS DC/Baltimore (@NWS_BaltWash) April 7, 2017
A second EF-0 tornado in the area touched down in southeast Washington, D.C., about five minutes after the Herndon tornado. No one was reported injured in either location.
The storm toppled numerous trees in Reston and the surrounding area Thursday. The National Weather Service says it is investigating other locations in the area today.
Image via David Welch/Facebook of tree fallen at Dranesville Elementary School in Herndon
After a snowless winter, it looks like Reston will finally be hit.
Forecasters are predicting several inches of snow for the area, with an outside chance of a foot or more, beginning tonight and continuing into Tuesday.
— Capital Weather Gang (@capitalweather) March 13, 2017
The National Weather Service has placed an area including Reston under a winter storm warning that is scheduled to begin at 7 p.m. Monday and last through 2 p.m. Tuesday. According to the alert, their official predictions include the following:
* PRECIPITATION TYPE…Snow…possibly mixed with sleet at times
* ACCUMULATIONS…Snow accumulation of 6 to 10 inches.
* TIMING…Snow will overspread the area Monday evening and
persist through Tuesday morning.
* IMPACTS…The heavy snow will create difficult travel
conditions and may produce scattered power outages.
* WINDS…Northeast 5 to 15 mph with gusts up to 30 mph.
* TEMPERATURES…In the lower 30s.
— Stu Ostro (@StuOstro) March 13, 2017
In preparation for the storm, the Virginia Department of Transportation began pre-treating roads Sunday. The department is encouraging drivers to adjust their schedules to be off roads before the evening rush hour Monday and overnight.
“This will help avoid being stuck on the roads when the storm begins, and to allow crews room to work more safely and efficiently,” VDOT said in a release.
In addition, VDOT asks that vehicles be parked in driveways, or that communities coordinate to all park on the same side of the road, to allow a larger path when plows begin to focus on neighborhood streets.
NEW: National Weather Service reduced their forecast from 6-8" to 4-6" in Washington, DC. We will release a new map following PM models! pic.twitter.com/h6Z1I20Mkn
— Mike Thomas (@MikeTFox5) March 13, 2017
Such a significant snowfall would also have an impact on public transportation.
Metro will suspend its MetroAccess paratransit services at 4 p.m. today, and they will remain out of service through Tuesday. In addition, Metrobus service changes are possible and will be announced based on weather conditions and forecast.
Fairfax Connector is reminding users that service may be reduced, modified or suspended, on a route-by-route basis or systemwide. Riders are encouraged to monitor schedules online or call customer service (703-339-7200) for updates.
Photo via Virginia Department of Transportation on Twitter (@VaDOTNOVA)
The National Weather Service in Sterling has issued a wind advisory for the entire region that is scheduled to be in effect until 6 p.m.:
* WINDS…Northwest 20 to 25 mph with gusts around 45 mph.
* IMPACTS…Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
A Wind Advisory means that winds of 45 to 55 mph are expected.
Winds this strong can make driving difficult…especially for
high profile vehicles.
When combined with today’s temperatures in the 30s, the winds are going to make bundling up important.
A wind advisory for the areas in tan until 6PM this evening. Wind chills in the teens and 20s, bundle up! pic.twitter.com/PCw4bVYTK4
— Amelia Draper (@amelia_draper) February 9, 2017
The National Weather Service has once again placed an area including Fairfax County under a wind advisory. It is scheduled to be in effect until 7 p.m. Thursday.
From the NWS statement:
* WINDS…WEST 20 TO 30 MPH WITH GUSTS AROUND 50 MPH.
* IMPACTS…STRONG WINDS MAY BLOW DOWN LIMBS…TREES…AND POWER
LINES. SCATTERED POWER OUTAGES ARE POSSIBLE.
A WIND ADVISORY MEANS THAT WINDS OF 45 TO 55 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT…ESPECIALLY FOR
HIGH PROFILE VEHICLES.
Winds quite gusty behind the front! Remain windy at times this afternoon… pic.twitter.com/nhW2ecush0
— Tucker Barnes (@TuckerFox5) January 26, 2017
The advisory was originally issued for areas west of the Metro area, but was later expanded.
Wind Advisory EXPANDED. Strongest winds through early evening. pic.twitter.com/Zgxt7zT9KX
— NWS DC/Baltimore (@NWS_BaltWash) January 26, 2017
Weather alert map via National Weather Service
A mix of snow, sleet and freezing rain is in the forecast for Fairfax County and the surrounding areas beginning late tonight and lasting through tomorrow morning, according to a winter weather advisory issued by the National Weather Service today.
The wintry precipitation is slated to come between midnight and noon Saturday. Snow and sleet are expected to come first, followed by freezing rain early Saturday morning. The precipitation likely will change to rain by noon.
Snow and sleet accumulation of less than one inch is possible, making roads and walkways slippery.
File photo via Twitter/George Mesthos
In Reston, there are many downed branches on roads and sidewalks. There are no major power outages reported.
More than two inches of rain fell overnight, hitting the southern portion of Fairfax County hard. A flood warning remains in effect until 10:45 a.m. for the areas closer to I-95 (Alexandria, Springfield, Burke, Fairfax City and others). Reston remains under a flood watch through Friday.
The Capital Weather Gang says and additional three inches of rain will fall today, and Reston may see a total of six inches by the time this front moves away on Friday.
Graphic: Storm front for Sept. 29/Credit: WeatherBell.com
The National Weather Service has issued a Flash Flood Watch for Reston, Fairfax County and most of the Washington, DC, area for Wednesday night through Friday morning.
A front heading here from the Great Lakes is expected to dump several inches of rain. Here is the forecast:
AN UPPER LEVEL LOW PRESSURE OVER THE WESTERN GREAT LAKES WILL DROP SOUTHWARD INTO THE OHIO VALLEY WEDNESDAY INTO THURSDAY. AS THE UPPER LOW DROPS SOUTHWARD…
PERIODS OF HEAVY RAINFALL ARE ANTICIPATED LATE WEDNESDAY NIGHT THROUGH THURSDAY NIGHT ACROSS THE CENTRAL MID-ATLANTIC. THE PERIOD OF GREATEST
RAIN RATES IS EXPECTED LATE WEDNESDAY NIGHT THROUGH THURSDAY AFTERNOON.
WIDESPREAD RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE EXPECTED WITH LOCALIZED HIGHER TOTALS IN AREAS OF REPEATED ACTIVITY.
* POTENTIAL EXISTS FOR FLASH FLOODING OF SMALL STREAMS…CREEKS AND URBAN AREAS ESPECIALLY IN AREAS OF REPEATED ACTIVITY.
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.
Forecasters say strong storms could hit the D.C. area this afternoon and evening.
From the National Weather Service:
DAMAGING THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. RESIDENTS ALL ACROSS THE BALTIMORE AND WASHINGTON DC METRO AREAS…NORTH AND CENTRAL VIRGINIA…MUCH OF MARYLAND AND THE EASTERN WEST VIRGINIA PANHANDLE SHOULD MONITOR THIS SITUATION VERY CLOSELY AND ENSURE YOUR NOAA WEATHER RADIOS ARE SET TO ALERT MODE. SEVERE WEATHER WARNINGS MAY BECOME NECESSARY. HERE ARE SOME SAFETY RULES TO KEEP IN MIND WHEN SEVERE WEATHER IS EXPECTED OR IS OCCURRING.
IF A WARNING IS ISSUED…SEEK SHELTER INDOORS IMMEDIATELY. A SEVERE THUNDERSTORM IS DEFINED AS PRODUCING QUARTER SIZE OR GREATER HAIL AND WIND GUSTS OF 58 MPH OR MORE.
Fairfax County is under a heat advisory for Thursday, July 14, which is expected to be the hottest day of the summer so far.
The National Weather Service (NWS)’s heat advisory will be in effect from from noon to 8 p.m. A heat advisory means that a period of high temperatures is expected.
Temperatures in the middle 90s combined with high humidity values will produce heat index values between 100 and 105 degrees. This combination of high temperatures and high humidity will create a situation in which heat illnesses are possible, says the Fairfax County Office of Emergency Information.
To reduce risk during outdoor work, the Occupational Safety and Health Administration (OSHA) recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location.
You also may visit any of the county’s Cooling Centers, held at county facilities such as senior centers, RECenters, community centers and libraries, for temporary respite from the heat.
Fairfax County, including Reston, is under a Severe Thunderstorm Watch until 10 p.m. tonight. From the National Weather Service:
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. LOCALLY DAMAGING WIND GUSTS ARE THE PRIMARY THREAT.
LOCALLY HEAVY RAIN IS POSSIBLE WITH THE THUNDERSTORMS LATE THIS AFTERNOON AND EVENING. IF REPETITIVE OR PERSISTENT THUNDERSTORMS OCCUR…ISOLATED FLASH FLOODING COULD OCCUR…PARTICULARLY IN URBAN AREAS.
Update, 5:30 p.m.: A Flash Flood Warning has been issued for northwestern Fairfax County until 8 p.m.
Original story: The National Weather Service has issued a Severe Thunderstorm Warning for a swath of Northern Virginia from Middleburg to Reston until 2 p.m. Tuesday.
The rest of Northern Virginia is under a Severe Thunderstorm Watch until 9 p.m. Tuesday.
⚠️ Severe Thunderstorm Warning including Sterling Park VA, Middleburg VA, Reston VA until 2:00 PM EDT pic.twitter.com/Vy6xXPoOB5
— NWS Severe Tstorm (@NWSSevereTstorm) June 21, 2016
The NWS says these storms could include damaging hail and high winds. NWS says there could be 80 mph wind gusts and two-inch hail in eastern Loudoun and western Fairfax from 1:30 to 2:30 p.m.
The National Weather Service has issued a Flash Flood Watch and a Severe Thunderstorm Watch for Reston and the entire DC Metro area from this afternoon through late tonight.
Thunderstorms with heavy rainfall are expected late today and tonight, and repeated thunderstorms with heavy rainfall over the same area may result in flash flooding, the NWS says. The Severe Thunderstorm Watch will be in effect through 10 p.m. Thursday, the NWS says.
The Capital Weather Gang’s forecast says up to two or three inches may fall Thursday and early Friday in some parts of the area.
A flash flood watch means that conditions may develop that lead to flash flooding.
The National Weather Service has issued a wind advisory for Fairfax County and most of Northern Virginia through midnight Monday.
The NWS says the strongest winds will continue through early evening, then gradually diminish.
Winds are expected to be 20 to 30 miles per hour — with gusts up to 50 mph, the NWS says.
There could be scattered tree and power line damage and difficulty driving high-profile vehicles, the NWS said.
The National Weather Service has issued a Flood Watch for Reston, Fairfax County and most of the DC area. The Flood Watch is in effect from 10 a.m. Wednesday until midnight.
From the NWS:
Showers and thunderstorms, heavy at times, are expected to move Northeast across the area this afternoon into evening. Widespread rainfall amounts around one inch are expected, with localized high amounts up to 3 inches possible in areas of repeated activity.
Due to saturated ground, rains will turn into runoff with flooding of smaller streams and creeks possible. General inundation of low-lying and urban flooding in poor drainage areas also possible.
A flood watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible flood warnings.