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JUST IN: Flood Watch in effect into Thursday evening for Fairfax County

Raindrops in puddles (staff photo by Jay Westcott)

The rain now passing through Fairfax County could lead to flash flooding this afternoon and evening (Thursday).

The National Weather Service has issued a Flood Watch for much of the D.C. area that’s currently set to be in effect until 8 p.m.

Here is more from the alert:

* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS…
– A strong surface trough has settled over the I 95 corridor and has become the focus for the formation of strong thunderstorms. PWs greater than 1.7 inches combined with the potential for training storms capable of producing 2 to 3 inches per hour may lead to an increased threat for flash flooding over the more urban areas along the I-95 corridor. One to two inches of rain are likely within training storms with locally higher amounts around 4 inches are possible.

The region is also under a Severe Thunderstorm Watch until 9 p.m.

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Rainstorm with hail passes through Fairfax County

Rain with hail in Vienna (staff photo by Angela Woolsey)

Updated at 7:25 p.m. — A Flood Warning has now been issued for Fairfax County, with an additional half to 1.5 inches of rain possible until 1:15 a.m. Monday. The Severe Thunderstorm Warning has also been extended to 8 p.m.

Earlier: A Severe Thunderstorm Warning is in effect for Fairfax County.

The National Weather Service issued the alert shortly after 5 p.m., warning of 60 mph wind gusts and quarter-sized hail:

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.

Moving eastward, the storm has already made its way through Herndon and just passed the Town of Vienna, bringing a couple minutes of intense rain, thunder, and hail that ended as quickly as it began.

This is the second thunderstorm with hail to hit the D.C. area within the past week, and it came a day after temperatures hit a high of 92 degrees, according to NWS data.

While the warning is set to end at 6 p.m., a Severe Thunderstorm Watch is currently in effect until 9 p.m.

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Fairfax County under Flood Watch, starting Friday afternoon

Raindrops collect on tree buds in Fairview Park (staff photo by Jay Westcott)

The National Weather Service has issued a Flood Watch for Fairfax County and the rest of the D.C. area.

The alert is set to take effect at 5 p.m. today (Friday) and last until 2 a.m. tomorrow (Saturday), though current forecasts indicate that rain is likely to continue throughout the weekend.

“Widespread rainfall totals of 1-3 inches are expected through tonight,” the NWS said. “This may lead to localized instances of flooding.”

Here is more from the alert:

…FLOOD WATCH IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT…

* WHAT…Flooding caused by excessive rainfall is possible.

* WHERE…DC and portions of Maryland and northern Virginia, including the following areas: the District of Columbia. In Maryland, Anne Arundel, Central and Southeast Howard, Central and
Southeast Montgomery, Northwest Howard, Northwest Montgomery, Prince Georges and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax,
Northern Fauquier, Prince William/Manassas/Manassas Park and Western Loudoun.

* WHEN…From this afternoon through late tonight.

* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

The NWS advises continuing to monitor forecasts and staying alert for possible Flood Warnings.

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JUST IN: Flood Warning in effect for Fairfax County into Friday evening

The steady rain that has fallen over Fairfax County throughout the past two days could result in flooding, forecasts indicate.

Citing “excessive rain,” the National Weather Service has issued a Flood Warning for the county that’s expected to remain in place until 6:45 p.m. today (Friday).

“Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring,” the alert says. “Low-water crossings may be inundated with water and may not be passable.”

Some flooding has already been reported, with Prosperity Avenue currently closed near Mantua, Fairfax County confirmed.

Here are more details from the warning, which went out at 2:52 p.m.:

– At 246 PM EST, radar indicated heavy rain had occurred in the warned area. Broadcast media reported that flooding is already occurring. Between 1 and 1.5 inches of rain have fallen.

– Prosperity Avenue is closed near Mantua due to flooding, and other typical flood prone areas may also flood shortly.

Additional rainfall amounts up to 0.25 inches are possible in the warned area.

– Some locations that will experience flooding include…
Reston… Annandale… Springfield… Vienna… Mantua… Burke… Oakton… Tysons Corner… Wolf Trap… Great Falls… Merrifield… West Springfield… Dunn Loring… North Springfield… Ravensworth… Belleview…

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JUST IN: FCPS cancels classes for third day this week amid freezing rain forecast

Fairfax County Public Schools won’t hold classes for a third consecutive day this week, citing inclement weather in an announcement released just before 5 p.m.

The region could see freezing rain between 4 a.m. and 9 a.m. tomorrow (Wednesday), according to the National Weather Service, following Monday’s snowstorm that pummeled the region with over half a foot of snow in areas.

The NWS has issued a “Potential Winter Commuting Hazard” for Fairfax County, warning that there is a 30-50% chance of light freezing rain after 4 a.m. “that could turn into a glaze of ice on area roads.”

“Plan ahead by staying off the roads if possible,” the county said in a blog post. “If you do need to travel, allow for additional time and be extra cautious and alert while driving.”

FCPS said in a Facebook post that meal distribution will return at regular locations on Thursday (Jan. 6), and school offices will open later in the day tomorrow (Wednesday).

The school system tentatively expects to open its COVID-19 testing sites to staff and students who are experiencing symptoms, though a final decision won’t be made until tomorrow morning. Pre-registration is required, and only PCR tests will be available.

Testing is not required for students to be able to return to schools, whenever they reopen.

FCPS’ announcement comes after Monday’s snowstorm caused tens of thousands of Fairfax County homes to lose power and hundreds of crashes. As of this evening (Tuesday), Dominion’s power outage map showed over 7,000 customers in the county with electric issues.

The storm disrupted travel, but Fairfax Connector buses were slated to resume tomorrow (Wednesday). County officials asked commuters to use its BusTracker system in case any detours were still in effect.

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Potential for flooding high in Fairfax County into Saturday morning

Waters from the Potomac River could spill over into Fairfax County, with the D.C. area expected to get almost nonstop rain tomorrow (Friday), the National Weather Service warns.

A Coastal Flood Warning will be in place for Northern Virginia, including Fairfax County, starting at 6 p.m. today (Thursday) until 8 a.m. Saturday (Oct. 30).

According to the NWS, showers and thunderstorms from the Midwest are moving east and could bring 1 to 2 inches of rain, along with the risk of flash flooding along the Potomac River and Chesapeake Bay.

Here is more from the NWS alert:

…COASTAL FLOOD WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 8 AM EDT SATURDAY…

* WHAT…Two to four feet of inundation above ground level possible in low lying areas.

* WHERE…Prince William/Manassas/Manassas Park, Fairfax and Stafford Counties.

* WHEN…From 6 PM this evening to 8 AM EDT Saturday, especially around the time of high tide.

* IMPACTS…Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur.

The NWS has also issued a Flood Watch that will be in effect from 10 a.m. to 6 p.m. tomorrow, with rainfall potentially reaching 2 to 4 inches in some areas.

“Heavy amounts of rain will cause creeks and streams to slowly rise, possibly out of their banks as well as the potential for flooding in urban areas,” the NWS said.

The Fairfax County Office of Emergency Management says the risk of rain will likely arrive in the county around midnight to 2 a.m. Friday, echoing the Fire and Rescue Department’s warning that flooding may lead to road closures.

“Low lying property, including homes, businesses and some critical infrastructure, may be inundated,” OEM said in a blog post. “Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.”

The office also advised keeping children away from creeks or other bodies of water that may rise rapidly, and clearing leaves and other debris from downspouts and storm drains.

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Flash Flood Watch in effect tonight for Fairfax County

Fairfax County is under a Flash Flood Watch area for Oct. 25, 2021 (via Fairfax Alerts)

The National Weather Service has issued a Flash Flood Watch for much of the D.C. area, including Fairfax County.

In effect until 2 a.m. tomorrow (Tuesday), the alert says showers and thunderstorms could bring up to 4 inches of rain in some areas, potentially leading to rapidly rising stream and creek waters.

The full alert is below:

…FLASH FLOOD WATCH IN EFFECT UNTIL 2 AM EDT TUESDAY…

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of DC, Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In Maryland, Anne Arundel, Central and Southeast Howard, Central and Southeast Montgomery, Prince Georges and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria and Fairfax.

* Until 2 AM EDT Tuesday.

* Showers and thunderstorms are expected to produce 1 to 2 inches of rain through this evening, with localized amounts of up to 4 inches possible. Heavy rain in a short amount of time may result in rapid rises of water on small creeks and streams and in urban areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

A Severe Thunderstorm Warning is also in effect for Reston and Herndon until 6:30 p.m., with the NWS warning of 60 mile-per-hour wind gusts that could produce power outages and downed trees.

“At 544 PM EDT, severe thunderstorms were located along a line extending from South Riding to Herndon to Wolf Trap, moving northeast at 50 mph,” the agency said.

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JUST IN: Flash Flood Watch issued for Fairfax County into this evening

Updated at 3:30 p.m. — The National Weather Service has now issued an Areal Flood Warning until 9:30 p.m. for central Fairfax County, with Reston, Vienna, Falls Church, Annandale, and Springfield among the locations that could experience flooding. Between 1 and 1.5 inches of rain have already fallen with an additional 1 to 2 inches possible.

Earlier: After a couple of relatively dry weeks, the weather in Fairfax County is about to take a turn for the rainy today (Thursday).

The National Weather Service issued a Flash Flood Watch for the D.C. area at 2:44 p.m. Set to remain in effect until 9 p.m., the alert warns that showers and thunderstorms could produce up to two inches of rain per hour, potentially leading to floods in some areas.

Here is the full alert:

…FLASH FLOOD WATCH IN EFFECT UNTIL 9 PM EDT THIS EVENING…

The National Weather Service in Sterling Virginia has issued a

* Flash Flood Watch for portions of DC, Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In Maryland, Anne Arundel, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax, Prince William/Manassas/Manassas Park and Western Loudoun.

* Until 9 PM EDT this evening.

* Slow moving showers and thunderstorms will produce very heavy rainfall, potentially leading to areas of flash flooding. Rainfall rates may reach two inches per hour.

The NWS advises residents to monitor weather forecasts later in the day and prepare to take action if the watch escalates into a Flash Flood Warning.

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