Fairfax County is under a Tornado Watch until 10 p.m. today (Thursday).

The National Weather Service issued the alert shortly after 3:30 p.m.

Forecasters say that residents in the Tysons-area may see heavy thunderstorms this evening.

Be Aware: There is a POTENTIAL for TORNADOES and DAMAGING WIND GUSTS from severe thunderstorms this afternoon & early tonight for a large part of our area. Stay weather aware & be ready to seek shelter if warnings are issued or severe weather threatens. #vawx #mdwx #dcwx #wvwx pic.twitter.com/GB9xtpM4WE

— NWS Baltimore-Washington (@NWS_BaltWash) September 3, 2020

BREAKING: Tornado watch issued for entire region until 10 p.m. Storms with torrential rain, localized damaging winds likely through this evening. A few tornadoes cannot be ruled out.

Updates: https://t.co/5SDZ7bq9nl pic.twitter.com/k08D1HvUJ7

— Capital Weather Gang (@capitalweather) September 3, 2020

Stay weather alert this afternoon and evening as scattered to numerous severe storms are expected to move across our area from west to east. The main threat will be damaging wind gusts, but tornadoes cannot be ruled out. For the latest forecast visit https://t.co/t54l4ELo2o pic.twitter.com/UwlivesMBs

— NWS Baltimore-Washington (@NWS_BaltWash) September 3, 2020

Fairfax County is now under a Severe Thunderstorm Watch tonight.

The National Weather Service issued the watch shortly after 3:30 p.m. It will be in effect until 11 p.m.

Forecasters say that the D.C. area may see severe storms this evening.

Later this week, NWS says the D.C. region may see damaging wind gusts and severe thunderstorms on Saturday from Hurricane Laura.

Severe storms *possible* in DC area this evening, esp in 5-10p timeframe, but isolated activity poss earlier. Damaging winds main threat. Low confidence in how widespread these will be. https://t.co/mWyDsUvUPm

— Capital Weather Gang (@capitalweather) August 25, 2020

While a few showers or even a brief rumble of thunder is possible this morning, the main severe weather threat is later this afternoon into early this evening. An enhanced risk of severe weather extends over much of MD and portions of northern VA and eastern WV, including DC. pic.twitter.com/E2yZD9kcf0

— NWS Baltimore-Washington (@NWS_BaltWash) August 25, 2020

Updated 9:50 a.m. — Aas a Flood Warning is in effect for the area until 3:30 p.m. today. NWS said that Vienna, Falls Church, Tysons and Merrifield may experience flooding. 

Earlier: People can expect more thunderstorms and possibly heavy rain.

The National Weather Service issued a Flash Flood Watch for today (Thursday).

More from NWS:

Slow moving thunderstorms capable of producing heavy rainfall may develop today. Heavy rainfall from thunderstorms may lead to flash flooding.

Potential impacts include rapid rises of water, flooded roads and flooding of structures in low lying areas near streams. Landslides and washouts are also possible.

People are advised to not drive through water they don’t know the depth.

Another flash flood watch is in effect for today. Multiple rounds of thunderstorms with heavy rain will be possible. pic.twitter.com/w40WR0SEvU

— NWS Baltimore-Washington (@NWS_BaltWash) August 13, 2020

Flash Flood Watch In Effect until midnight tonight (8/13)! If you must be on roads, never drive through a flooded roadway! PLEASE #TurnAroundDontDrown! Plan alternate routes around flooded roads. Don't put you, any passengers AND #FCFRD firefighters/paramedics in harm’s way! pic.twitter.com/xhoUAocquH

— Fairfax Fire/Rescue (@ffxfirerescue) August 13, 2020

Get ready for another summer thunderstorm. A Flash Flood Watch will be in effect in Fairfax County this afternoon and evening.

The National Weather Service says that thunderstorms and showers could bring 1-2 inches of rain with some areas possibly getting up to 4 inches.

“A cold front will move into the area Wednesday and then stall out,” according to NWS. “Numerous slow-moving showers and thunderstorms will pose a risk of flash flooding.”

Flash Flood Watch expanded westward for today and tonight. pic.twitter.com/8DUzrASBwL

— NWS Baltimore-Washington (@NWS_BaltWash) August 12, 2020

Two power outages are currently impacting more than 2,500 Dominion Energy customers along the Dulles Toll Road and I-66 in the McLean area.

One outage, which is affecting 1,721 customers, stretches from Route 123 to the East Falls Church Metro station on the eastern side of the Dulles Toll Road.

Meanwhile, the other one is just above the West Falls Church Metro station — where I-66 and the Dulles Toll Road connect. That outage is impacting 824 customers.

Tropical Storm Isaias caused both of the outages, according to Dominion Energy’s power outage map. Dominion Energy anticipates the power will be restored between noon-5 p.m.

Map via Dominion Energy

Updated 3:40 p.m. — The Fairfax County Police Department said around 3:30 p.m. that all of the road closures have been resolved. 

Earlier: Several roads are closed in the Tysons area due to the storm.

The Fairfax County Police Department shared an updated list of weather-related road closures around the county this morning.

Currently, the Tysons area is under a Flash Flood Watch and Flood Warning today as Tropical Storm Isaias moves through the D.C. region.

Road closures:

• Old Courthouse and Besley roads: high water
• Old Dominion Drive and Swinks Mill Road: tree blocking the roadway
• Idylwood Court and Idylwood Road: tree on power line over the roadway
• Friden and Hillside drives: tree blocking the roadway
• Browns Mill and Beulah roads: high water 

Use the map below to find the Tysons-area road closures. Tysons Reporter will update this article and map as more information becomes available or if the road closures change.

Driving through flooded roadways can be deadly. Watch & share this @NWS video to see why: https://t.co/8oJR2M7tNs #TurnAroundDontDrown

— Fairfax County Government 😷🎃🗳️ (@fairfaxcounty) August 4, 2020

The eastern portion of Fairfax County and the City of Falls Church are under a Flood Warning today (Tuesday) as Isaias approaches the D.C. area as a tropical storm.

The warning went into effect shortly after 7 a.m. and will last until 1 p.m. The National Weather Services says that McLean, Vienna and Falls Church can expect flooding.

More from NWS:

At 700 AM EDT, Doppler radar and automated rain gauges indicated that heavy rain was falling over the area. The heavy rain will cause flooding. Up to one inch of rain has already fallen. Additional rainfall amounts of several inches are possible, and Flash Flood Warnings could be required later today. For now, though, flooding will be relatively slow to develop…

A Flood Warning means that flooding is imminent or occurring. All interested parties should take necessary precautions immediately.

The Tysons area is also under a Flash Flood Watch until 4 p.m. and a Tropical Storm Warning.

Isaias is moving NE across NC, crossing our region through the early PM. Heavy rain will intensify with significant flood potential, especially near & east of I-95. Winds will also increase in these areas, with wind damage possible. Tornadoes also possible, mainly near the Bay. pic.twitter.com/wUyXqUxsuz

— NWS Baltimore-Washington (@NWS_BaltWash) August 4, 2020

A #TropicalStormIsaias from @fairfaxcounty. #IsaiasFFX #FCFRD RT @fairfaxcounty: Tropical Storm Isaias Update https://t.co/KNUyR5OuAm pic.twitter.com/ffMSGKsDjw

— Fairfax Fire/Rescue (@ffxfirerescue) August 4, 2020

Ahead of Tropical Storm Isaias hitting the D.C. region, Fairfax County officials and forecasters are sharing resources and tips to help people prepare for the storm.

“Significant flash flooding of small streams and creeks is likely tonight into Tuesday evening as rainfall associated with Tropical Storm Isaias spreads northward,” according to Fairfax County. Forecasters predict that the storm will bring 3-6 inches of rain.

Currently, the Tysons area is under a Tropical Storm Warning, which means that tropical storm-force winds are expected somewhere within this area within the next 36 hours,” according to National Weather Service.

The area will be under a Flash Flood Watch from 11 p.m. tonight to the same time Tuesday night and a Coastal Flood Watch will also be in effect from Tuesday morning to Wednesday.

Due to flooding risks, Fairfax County officials are reminding drivers to turn around if they see water and don’t know how deep it is. The county also tweeted out contact information for the appropriate people to call if someone spots a downed tree.

NWS wants people to protect property in flood-prone areas.

The Washington Post’s Capital Weather Gang tweeted that waves of heavy rain are expected to hit the D.C. region by Tuesday morning and that commuters should allow for extra time.

A Tropical Storm Warning has been issued for southern Maryland and nearby waters. A Tropical Storm Watch is in effect for other areas along and east of I-95. A Flash Flood Watch is in effect this evening through Tuesday evening. See https://t.co/5RyZgoXicj for further details. pic.twitter.com/keywY8cceB

— NWS Baltimore-Washington (@NWS_BaltWash) August 3, 2020

#Isaias and DC-MD-VA! Short thread…
* Tropical storm and flash flood watch out for large parts of the region
* High confidence in heavy rain. NWS has INCREASED our rain forecast to 4-6" along I-95 corridor, 2-4" to west, 5 to 7" east. (1/x) pic.twitter.com/en6NftxHD2

— Capital Weather Gang (@capitalweather) August 3, 2020

Image via NWS Baltimore-Washington/Twitter

Updated 11:55 a.m. — The National Weather Service placed Fairfax County under a Tropical Storm Warning shortly after 11 a.m. today. “A Tropical Storm Warning means tropical storm-force winds are expected somewhere within this area within the next 36 hours,” according to NWS.

Earlier: As Tropical Storm Isaias hits the East Coast, forecasters warn that the Tysons area could see flash flooding early this week.

The Tysons area will be under a Flash Flood Watch from 11 p.m. tonight to the same time Tuesday night. “Moderate coastal flooding is possible at times of high tide Tuesday as Tropical Storm Isaias makes its closest approach to the area,” the National Weather Service said.

NWS says that widespread rainfall between 3-6 inches is expected, with possibly more in certain areas.

A Coastal Flood Watch will also be in effect from Tuesday morning to Wednesday.

“Rainfall associated with Tropical Storm Isaias is expected to start spreading northward late Monday night and continue into Tuesday evening,” according to NWS.

Forecasters encourage people to protect flood-prone property as soon as possible and monitor the weather. People should not attempt to drive through water if they don’t know how deep it is.

A Tropical Storm Warning has been issued for southern Maryland and nearby waters. A Tropical Storm Watch is in effect for other areas along and east of I-95. A Flash Flood Watch is in effect this evening through Tuesday evening. See https://t.co/5RyZgoXicj for further details. pic.twitter.com/keywY8cceB

— NWS Baltimore-Washington (@NWS_BaltWash) August 3, 2020

 

Updated 3:10 p.m. — NWS issued a Severe Thunderstorm Warning shortly after 3 p.m. for the area. “Severe thunderstorms were located along a line extending from near Leesburg to Middleburg to near Hume, moving east at 10 mph,” according to NWS.

Severe Thunderstorm Warning including Washington DC, Arlington VA, Alexandria VA until 4:15 PM EDT pic.twitter.com/AtqyJBS7UL

— NWS Severe Tstorm (@NWSSevereTstorm) July 22, 2020

Earlier: A Severe Thunderstorm Watch is in effect for Fairfax County and surrounding areas today (Wednesday).

The National Weather Service issued the watch at noon. The watch will be in effect until 7 p.m.

The Tysons-area is also under a Heat Advisory until 8 p.m. Forecasters recommend that people stay out of the sun, drink lots of fluids and seek air-conditioned spaces.

Severe Thunderstorm Watch until 7 PM. pic.twitter.com/AwzmDzbjWS

— NWS Baltimore-Washington (@NWS_BaltWash) July 22, 2020

File photo