Reston, VA

A severe thunderstorm watch is in effect for the area until 11 p.m. today.

The National Weather Service says that strong and widespread thunderstorms are in the afternoon and into the evening.

Forecasters also say to watch out for damaging winds, large hail and an isolated threat for flooding.

A flash flood watch is also in effect until 6 p.m. today in Herndon and Reston.

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF MARYLAND, THE DISTRICT OF COLUMBIA, AND NORTHERN VIRGINIA, INCLUDING THE FOLLOWING AREAS, IN MARYLAND, ANNE ARUNDEL, CENTRAL AND SOUTHEAST HOWARD, CENTRAL AND SOUTHEAST MONTGOMERY, NORTHERN BALTIMORE, NORTHWEST HARFORD, PRINCE GEORGES, SOUTHEAST HARFORD, AND SOUTHERN BALTIMORE. THE DISTRICT OF COLUMBIA. IN NORTHERN VIRGINIA, ARLINGTON/FALLS CHURCH/ALEXANDRIA.

* UNTIL 9 PM EDT THIS EVENING

* THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND CONTINUE THIS EVENING ALONG THE I-95 CORRIDOR. SOME AREAS MAY EXPERIENCE MULTIPLE THUNDERSTORMS THROUGH THIS EVENING. RAINFALL AMOUNTS  OF 1-2 INCHES ARE POSSIBLE, WITH SOME ISOLATED AMOUNTS OVER 3  INCHES POSSIBLE. THIS AMOUNT OF RAIN OVER URBAN AREAS MAY LEAD TO INSTANCES OF FLASH FLOODING, AS WELL AS A POTENTIAL FOR CREEKS AND STREAMS TO RISE RAPIDLY IF SOME OF THE HIGHER AMOUNTS ARE REALIZED.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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.

Staff photo by Jay Westcott

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Monday Morning Notes

Weather Alert for Today — The work week begins with hot and humid weather.  Afternoon showers and thunderstorms are also expected. Forecasters say some storms could be strong to severe, with damaging. Winds, large hail, and an isolated threat for flooding. [National Weather Service]

COVID-19 Count Begins Climb — “Both Virginia and the Northern Virginia region reported the highest daily number of new coronavirus cases in almost a month on Saturday, according to the Virginia Department of Health. Northern Virginia reported 256 new cases, and statewide 716 new cases were reported. Both numbers were the highest since June 7.” [Inside NOVA]

Virtual Town Hall for Return to School — The Fairfax County Public Schools System is hosting a downhill to discuss return to school options on today (Monday). A meeting in Spanish will be held on Wednesday. [FCPS]

Photo via vantagehill/Flickr

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A severe thunderstorm warning is in effect for Reston and Herndon until 4:15 pm today.

The National Weather Service urges residents to take shelter or stay in the lowest area of a building.

Here’s more from the alert:

IMPACT…Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles.

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Reston and surrounding areas in Northern Virginia are under a severe thunderstorm watch.

The National Weather Service says that the watch is in effect until 10 p.m.

Forecasters say that strong winds are possible into the evening.

Photo via vantagehill/Flickr

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The National Weather Service has issued a Flood Warning for areas in central Fairfax County, including Reston and Great Falls.

The warning is set to last until 7 p.m.

“Doppler radar and automated rain gauges indicated that moderate to heavy rain was falling over the area. The heavy rain will cause flooding,” according to NWS. “Up to 1 inch of rain has already fallen. Additional rainfall amounts of around an inch are possible.”

Flickr pool photo by vantagehill

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A flash flood watch is in effect for most of the day today.

The National Weather Service issued an alert that runs from 10 a.m. through 10 p.m. this evening.

Heavy rainfall, with the potential for flooding, is expected, according to the NWS.

Here’s more from the county on the alert:

Widespread rainfall totals of 1 1/2 to 2 1/2 inches are expected with locally higher amounts of three inches or more possible.

This amount of rainfall will likely result in small stream and main stem river flooding. Moderate river flooding is also possible.

You should monitor later forecasts and be alert for possible flood warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Photo by Jay Westcott

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Friday Morning Notes

Speeding Up Silver Line Extension Work — “Stay-home orders, and progress on software safety concerns, could help speed up work on the Silver Line extension to Dulles International Airport, since Metro now appears to be open to a complete multiweek shutdown of the Wiehle-Reston East station.” [WTOP]

Freeze Warning This Morning — A freeze warning is in effect until 9 a.m. today for much of the reason. We’re hoping you’ve taken steps to protect plants from the cold and prevent pipes from bursting. [National Weather Service]

Herndon Yoga Center Turns to Streaming — The Health Advantage Yoga. Center on 1041 Sterling Road in Herndon is offering a wide range of classes online since it closed its doors due to the novel coronavirus. [Patch]

County Park Authority Launches Virtual Exploration Center  The Fairfax County Park Authority has launched a new online center that offers field guides, games, video workouts and fitness trackers. County officials will continue to update the website with more resources. [Fairfax County Government]

Photo via vantagehill/Flickr

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(Update at 3:48 p.m.: The watch as canceled in the afternoon).

A tornado watch is in effect for Fairfax County until 6 p.m. today.

The county is already under a wind advisory and storms are expected to roll through the region for most of the day.

A severe thunderstorm warning is also in effect until 2:30 p.m. today.

 

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Monday Morning Notes

Brush Fire at Lake Fairfax — Crews contained a brush fire at Lake Fairfax on Saturday. No structures were impacted by the incident. More information is forthcoming. [Fairfax County Fire and Rescue Department]

Wind Advisory in Effect — An advisory is in effect through 6 p.m. today. The National Weather Service encourages residents to use extra caution when driving and secure outdoor objects. [National Weather Service]

How a Reston Data Company Tracked Beach Visitors — Reston data company X-Mode was able to track the location data from people who visited a beach in Fort Lauderdale, Floria and ignored warnings to practice social distancing. [Technical.ly]

All for Cloth Face Masks — The Centers for Disease Control and Prevention recommends people wear cloth face coverings when they are out in public. [Fairfax County Government]

Photo via vantagehill/Flickr

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Another wind advisory is in effect through 6 p.m. today (Monday).

The National Weather Service warns residents that storms could cause downed. Trees and power lines. Here’s more from forecasters:

* WHAT…South through mid-morning at 20 to 30 mph with gusts around 50 to 55 mph expected. Winds will become southwest lat this morning and afternoon.

* WHERE…Northern and central Virginia, northern and central Maryland, portions of eastern West Virginia, and the city of Washington DC as well as Baltimore.

* WHEN…From 6 AM this morning to 6 PM EDT this evening.

* IMPACTS…Gusty winds could blow around unsecured objects. Tree may be blown down due to the saturated ground, and this may lead to power outages.

Photo via vantagehill/Flickr

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Fairfax County is under a severe thunderstorm watch until 4 p.m. this afternoon (April 9).

People should be prepared for an onset of gusty winds upwards of 50 miles per hour, the National Weather Service said.

“Winds of this magnitude are capable of damaging tents, blowing around unsecured outdoor objects, and knocking down branches, trees and power lines resulting in power outages,” according to the  National Weather Service.

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A Flood Watch is in effect for Fairfax County and surrounding areas through Friday morning.

The National Weather Service says flooding is possible based on current forecasts. Here’s more from the alert:

Periods of rainfall will continue to occur through early Friday. The heaviest rainfall potential will begin this afternoon and continue into this evening. Storm total rainfall amounts through Friday morning are expected to range between 1 and 2 inches with isolated amounts near 3 inches possible.

Flooding of poor drainage and low lying areas will be possible, and some smaller streams and rivers may exceed their banks.

Residents should continue to monitor the weather for later forecasts.

Photo via vantagehill/Flickr

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The second snow 2020 may be on its way this weekend. A winter weather advisory is in effect for the area tomorrow (Saturday) from 7 a.m. to 7 p.m.

The National Weather Service says that snow, sleet, and freezing rain is possible. 

Here’s more from the alert:

* WHAT…Snow, sleet and freezing rain expected. Total snow and sleet accumulations of up to one inch and ice accumulations of up to one tenth of an inch.

* WHERE…Portions of central Maryland, northern and northwest Virginia and eastern West Virginia.

* WHEN…From 7 AM to 7 PM EST Saturday. Precipitation will begin as snow before transitioning to sleet and freezing rain. Precipitation will change to rain late in the day.

* IMPACTS…Plan on slippery road conditions.

Residents should slow down and exercise caution while traveling.

Photo via NWS

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Expect Tuesday’s snow — which brought about 1.5 inches to Reston — to be up in the air today (Wednesday).

A Wind Advisory is in effect through 5 p.m. today in the area.   The National Weather Service expects west winds from 20 to 25 mph with gusts of up to 50 mph.

Here’s more from the alert:

* WHERE…Portions of The District of Columbia, central, north central and northern Maryland and northern and northwest Virginia.

* WHEN…From 11 AM this morning to 5 PM EST this afternoon.

* IMPACTS…Gusty winds could blow around. unsecured objects. Tree limbs could be blown down and a few power outages may result.

Residents should use caution while driving and secure outdoor objects as needed.

Photo by Ruth Sievers

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Light snow is expected between noon to 7 p.m. today (Tuesday) in the area. Fairfax County Public Schools will close two hours early today.

In a winter weather advisory, the National Weather Service says to expect between one to three inches of snow in the area.

The alert covers northeastern and central Maryland, as well as the Baltimore Metropolitan area.  The heaviest snow could complicate the evening commute from 3-6 p.m.

Here’s more from the NWS:

* IMPACTS…Snow covered and slippery roads are expected especially northwest of Interstate 95 into the evening commute.

* ADDITIONAL DETAILS…Snow rates could exceed one inch per hour with visibility around one-half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS… Slow down and use caution while traveling. When venturing outside, watch your first few steps taken on steps, sidewalks, and driveways, which could be icy and slippery, increasing your risk of a fall and injury.

Photo via vantagehill/Flickr

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