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Flash Flood Warning issued for southeast Fairfax County

Rain on brick walkway (staff photo by Angela Woolsey)

Rain, rain, it’s not going away just yet.

Another storm has emerged in the D.C. area, once again bringing the potential for flash flooding, according to the National Weather Service.

A Flash Flood Warning is in effect for southeastern Fairfax County, from Springfield to Mount Vernon and Lorton, until 7:30 p.m.

Excessive runoff may be particularly an issue in areas notably affected by thunderstorms yesterday (Monday) afternoon, when 2 to 4 inches of rain fell in the Springfield and Route 1 areas within the space of an hour.

“Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area,” the NWS said at 4:32 p.m. “Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area.”

In Fairfax County, yesterday’s storms mainly resulted in power outages, but they had a deadly impact in D.C., where rapidly rising waters killed 10 dogs at a local canine day care.

A Flood Watch has also been issued until 8 p.m.

The full alert is below.

* Flash Flood Warning for…Southeastern Fairfax County in northern Virginia…

* Until 730 PM EDT.

* At 432 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.
HAZARD…Flash flooding caused by thunderstorms.
SOURCE…Radar and automated gauges.
IMPACT…Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include…

Alexandria… Springfield…Fort Hunt… Groveton…Huntington… Fort Belvoir…Burke… Lincolnia…Lorton… Franconia…Hybla Valley… Newington…I395 and I495 Interchange…West Springfield…Mount Vernon… North Springfield…Hayfield… Mason Neck…Jefferson Manor…

FLASH FLOOD…RADAR AND GAUGE INDICATED EXPECTED RAINFALL RATE…1-3 INCHES IN 1 HOUR

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D.C. area on Flood Watch with storms possible this afternoon

Rain at the Sully Place Shopping Center in Chantilly (staff photo by Angela Woolsey)

A Flood Watch is now in effect for the D.C. area, including Fairfax County.

The National Weather Service describes the chances of “slow-moving showers and thunderstorms” this afternoon into the early evening as “likely.”

Issued at 11:26 a.m., the alert will be in place until 8 p.m.

“A few inches of rain is possible in a short amount of time as a result, and may cause rapid rises of water on creeks, streams, urban and poor drainage areas, and in other flood-prone locations,” the NWS says.

Rain has become more plentiful in recent days after the D.C. region experienced drought conditions earlier this year. A storm on Wednesday (July 5) brought at least 1-4 inches of rain, according to the NWS, contributing to flooding and power outages, particularly in the central part of Fairfax County.

The full alert is below:

…FLOOD WATCH IN EFFECT UNTIL 8 PM EDT THIS EVENING…

* WHAT…Flash flooding caused by excessive rainfall is possible.

* WHERE…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, Charles, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, and Southern Baltimore. In northern Virginia, Arlington/Falls Church/Alexandria, Central and Southeast Prince William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, Northwest Prince William, Stafford and Western Loudoun.

* WHEN…Until 8 PM EDT this evening.

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

* ADDITIONAL DETAILS…
– A couple rounds of slow-moving showers and thunderstorms are likely this afternoon into this evening. A few inches of rain is possible in a short amount of time as a result, and may cause rapid rises of water on creeks, streams, urban and poor drainage areas, and in other flood-prone locations.

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Flash Flood Warning issued for part of Fairfax County amid downpour

A rain storm passes over central Fairfax (via NWS)

Rain is pouring down on Fairfax County, raising the risk of flooding.

The National Weather Service has issued a Flash Flood Warning for the central portion of the county, including Oakton, Annandale, Merrifield and Fairfax City.

In effect until 6:30 p.m., the warning anticipates up to 3 inches of rain in the affected areas. As of 3:25 p.m., between half-an-inch and 1.5 inches had already fallen.

“Turn around, don’t drown when encountering flooded roads,” the NWS said. “Most flood deaths occur in vehicles. Basement flooding can occur quickly and create a life-threatening situation. If you are in a basement, or a residence below street level, move to a higher floor immediately.”

The full flood warning is below:

* Flash Flood Warning for…
Western Arlington County in northern Virginia…
Central Fairfax County in northern Virginia…
The Northwestern City of Alexandria in northern Virginia…
The City of Fairfax in northern Virginia…
The City of Falls Church in northern Virginia…

* Until 630 PM EDT.

* At 325 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD…Flash flooding caused by thunderstorms.
SOURCE…Radar.
IMPACT…Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Updated at 4:30 p.m. — According to Fairfax Alerts, high water has closed Prosperity Avenue at Morningside Drive in the Mantua area.

As of 4:20 p.m., 926 Dominion Energy customers had lost electricity, according to the utility’s outage map.

The largest outages are in Springfield north of the Mixing Bowl, where 547 people are without power and the estimated time of restoration is 5-10 p.m. Another 147 customers have been affected by outages in Lincolnia, where power is expected to return between 7 p.m. and midnight.

Updated at 4:55 p.m. — Woodburn Road at Spicewood Drive has also closed as a result of high water, per Fairfax Alerts. The closure is located just south of Accotink Creek.

Updated at 6:25 p.m. — A Flood Warning has now been issued, extending to 9 p.m. The NWS says 1-4 inches of rain have fallen so far in the central Fairfax area, along with Alexandria, Arlington and Falls Church.

“Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring,” the NWS said. “Streams continue to rise due to excess runoff from earlier rainfall.”

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JUST IN: Flood Watch issued for D.C. area as winter storm looms

Dec. 22 Flood Watch advisory area (via Fairfax Alerts)

A major winter storm is headed for the D.C. area, just in time to disrupt holiday travel.

While the snow and ice created by a “bomb cyclone” is expected to stay further west, Fairfax County and the rest of the D.C. area are in for a downpour, according to the National Weather Service.

The NWS has already issued a Flood Watch for the region that’s set to be in effect from 11 a.m. tomorrow (Thursday) to 1 a.m. Friday (Dec. 23).

…FLOOD WATCH IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY
NIGHT…

* WHAT…Flooding caused by excessive rainfall is possible.

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

* WHEN…From Thursday morning through late Thursday night.

* 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…
– Moderate rainfall is expected Thursday into Thursday evening, with rainfall totals of one to two inches. This may lead to isolated instances of flooding, especially in urban and poor drainage areas.

The Virginia Department of Transportation advises those planning to travel for Christmas to leave today instead of tomorrow, particularly if they’re going to be in the western half of the state.

“Crews have already begun pretreating and brining the roads and will begin deploying trucks early Thursday morning to treat roads as needed,” VDOT said in an advisory.

The department also warned that temperatures are expected to plummet into Friday, meaning fallen rain might refreeze into ice. Forecasts indicate this weekend may be the coldest Christmas in decades.

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Freezing rain possible overnight in the season’s first Winter Weather Advisory

Ice on tree branches in Reston (photo by Douglas H. Errett)

Updated at 8:05 p.m. — Fairfax County Public Schools will open two hours late tomorrow in response to the anticipated inclement weather.

Earlier: Fairfax County may get its first serious taste of winter weather for the season overnight.

A Winter Weather Advisory will be in place for the D.C. region from 1 a.m. to 1 p.m. tomorrow (Thursday), according to a National Weather Service alert issued this morning.

The NWS initially forecast that the anticipated freezing rain and ice could begin at 10 p.m. today but later revised the time frame.

“Wintry precipitation begins overnight and continues into Thursday morning,” the NWS said. “Warmer air should push in later Thursday morning into Thursday afternoon changing the precipitation to rain.”

More from the alert:

…WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 AM TO 1 PM EST THURSDAY…

* WHAT…Freezing rain expected. Total ice accumulations of a glaze to around one tenth of an inch. Highest ice amounts will be in the northern and western suburbs of Washington and Baltimore.

* WHERE…The Washington and Baltimore Metropolitan areas including the city of Baltimore and the District of Columbia as well as northeastern and central Maryland.

* WHEN…From 1 AM to 1 PM EST Thursday.

* IMPACTS…Difficult travel conditions are possible. The hazardous conditions will likely impact the morning commute on Thursday.

The Fairfax County Fire and Rescue Department warns that the rain could affect tomorrow’s morning commute, and Fairfax Connector says it will be monitoring the potential storm, advising that riders watch out for slippery or icy sidewalks.

The Virginia Department of Transportation began mobilizing crews yesterday to prepare roads for the wintry precipitation, noting that it has made some procedural adjustments in the hopes of avoiding a repeat of January’s I-95 shutdown.

The risk of ice tomorrow is expected to be highest further to the west in Virginia, where an Ice Storm Warning has been issued.

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Flash Flood Warning in for Fairfax County, as storm takes out power

A power outage is affecting Pimmit Hills on Aug. 10, 2022 (via Dominion Energy)

An ongoing thunderstorm has taken out power for hundreds of Fairfax County residents, as the threat of flash flooding looms.

The National Weather Service has issued a Flash Flood Warning for the D.C. region that is set to remain in effect until 8 p.m.

According to the alert, between 1.5 and 2.5 inches of rain have fallen so far, and an additional 1 to 2 inches are possible. Areas of concern include Reston, Centreville, Annandale, Vienna, Falls Church, McLean, Great Falls, Chantilly, and Fairfax Station.

More than a thousand Dominion Energy customers have been affected by power outages since rain arrived in the area this afternoon, according to the utility company’s outage map.

The largest impact appears to be in Pimmit Hills, where 647 customers are without power. An outage affecting 328 people near Eagle View Elementary School in the Fairfax area is expected to be addressed between 6 and 11 p.m.

In the Herndon area, an outage at the Herndon Parkway and Sterling Road intersection has affected 221 customers. Dominion estimates that power will be restored there between 7 p.m. and midnight.

Herndon Parkway has been closed in both directions at Palmer Drive after an accident, according to the Town of Herndon Police Department. Power lines are down there.

The full Flash Flood Warning from the NWS is below: Read More

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Flood Watch coming to Fairfax County, starting Friday afternoon

Raindrops in puddles (staff photo by Jay Westcott)

After a stormy night, more rain is on the way this afternoon (Friday), prompting the National Weather Service to issue a Flood Watch for Fairfax County and the rest of the D.C. region.

The alert will take effect at 3 p.m. and is currently set to continue until 11 p.m.

“Flash flooding caused by excessive rainfall is possible,” the alert says, projecting possible, localized rainfall totals of 2 to 4 inches.

The full alert from the NWS is below:

…FLOOD WATCH IN EFFECT FROM 3 PM EDT THIS AFTERNOON THROUGH THIS
EVENING…

* WHAT…Flash flooding caused by excessive rainfall is possible.

* WHERE…DC and portions of Maryland and Virginia, including the following areas: the District of Columbia. In Maryland, Anne Arundel, Calvert, Carroll, Central and Southeast Howard, Central
and Southeast Montgomery, Charles, Frederick MD, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford, Southern Baltimore and St. Marys. In Virginia, Albemarle, Arlington/Falls Church/Alexandria, Culpeper, Eastern Loudoun, Fairfax, Greene, King George, Madison, Nelson, Northern Fauquier, Orange, Prince William/Manassas/Manassas Park, Rappahannock, Southern Fauquier, Spotsylvania, Stafford and Western Loudoun.

* WHEN…From 3 PM EDT this afternoon through this evening.

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

* ADDITIONAL DETAILS…
– Showers and thunderstorms will develop this afternoon and may last into the evening. Any thunderstorms will be capable of producing very heavy rainfall, with localized totals of two to four inches possible. Much of the rain may fall within a one to three hour period, making rapid rises in creeks and streams possible, as well as flash flooding in urban areas.

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Fairfax County under Heat Advisory today as temperatures climb

The sun sets behind layers of buildings and clouds (Staff Photo by Jay Westcott)

Fairfax County and the surrounding area are under a Heat Advisory today (Thursday), as temperatures are expected to feel like it’s above 100 degrees outside.

The advisory begins at 11 a.m. and will remain in effect until 8 p.m. as temperatures in the upper 90s, combined with humidity, will have heat index values around 105 degrees. The hot temperatures and high humidity may cause heat illnesses to occur, the advisory warns.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Cooling centers are available in Fairfax County for those who need a place to escape the heat.

The National Weather Service also says there’s a chance for isolated showers and thunderstorms after 2 p.m.

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Fairfax County under Severe Thunderstorm Watch, Flood Watch

Lightning (via Breno Machado/Unsplash)

Fairfax County is under a Severe Thunderstorm Watch and Flood Watch as storms are expected in the region this evening.

The National Weather Service issued the watches this afternoon. They both expire at 10 p.m.

Rainfall could cause flash flooding in the area, according to the Flood Watch.

“Strong to severe thunderstorms will move across the region late this afternoon through the evening hours,” the Flood Watch says. “Heavy rain will accompany a number of these storms which may drop 1 to 2 inches of rainfall in an hour.”

A Hazardous Weather Outlook for the area also says the primary threats are wind gusts and large hail, with the possibility of an isolated tornado.

The full Flood Watch is below.

Event: Flood Watch
Alert:
…FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT…

* WHAT…Flash flooding caused by excessive rainfall continues to be possible.

* WHERE…Portions of DC, Maryland and northern Virginia, including the following areas: in DC, District of Columbia. In Maryland, Anne Arundel, Calvert, Central and Southeast Howard, Central and Southeast Montgomery, Charles, Northern Baltimore, Northwest Howard, Northwest Montgomery, Prince Georges, Southern Baltimore and St. Marys. In northern Virginia, Arlington/Falls Church/Alexandria, Fairfax, King George, Prince William/Manassas/Manassas Park and Stafford.

* WHEN…Until Midnight EDT tonight.

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

* ADDITIONAL DETAILS…
– Strong to severe thunderstorms will move across the region late this afternoon through the evening hours. Heavy rain will accompany a number of these storms which may drop 1 to 2
inches of rainfall in an hour. Additionally, some regions could see repeat thunderstorm activity leading to an enhanced threat for flooding.
– http://www.weather.gov/safety/flood
Instructions: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Photo via Breno Machado/Unsplash

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Fairfax County forecast promises rain with chance of flooding tonight

Rain collects around a storm drain (staff photo by Angela Woolsey)

A Flood Watch has been issued for Fairfax County and the rest of the D.C. area.

The alert will be in effect from 11 p.m. today (Friday) through 2 p.m. tomorrow (Saturday), according to the National Weather Service, which warns that “excessive” rainfall may lead to flash flooding.

Rain levels are expected to range from 1 to 7 inches, depending on the exact location.

Here is more from the NWS:

* WHEN…From 11 PM EDT this evening through Saturday afternoon.

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

* ADDITIONAL DETAILS…
– Showers are expected with scattered thunderstorms late this evening into midday Saturday. Average rainfall amounts around 1 to 3 inches are expected, but localized amounts around 4 to 7 inches in heavier showers and thunderstorms. Rainfall amounts around 1 to 3 inches within an hour or two are possible in areas where the heaviest rainfall occurs. The best chance for the heaviest rainfall will be overnight into Saturday morning.

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