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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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Storm rolls through Fairfax County, knocking out trees and power

A storm-related power outage in Great Falls on June 27, 2023 (via Dominion Energy)

After failing to materialize yesterday, stormy weather showed up in force around the D.C. region this afternoon (Tuesday).

A Severe Thunderstorm Warning was issued for Fairfax County and the rest of the area for around 2:11-3 p.m. The National Weather Service reported that the east-moving storm had reached the Oakton and Vienna area around 2:09 p.m., bringing 60-mph wind gusts and hail the size of quarters, according to Fairfax County.

“Damaging winds will cause some trees and large branches to fall,” the county’s emergency information blog said. “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.”

As of 3 p.m., about 2,826 people in Fairfax County and Fairfax City have lost power, according to Dominion Energy.

Per the utility company’s outage map, the largest individual outages appear to be along Fairfax Blvd, where 914 customers are without power, and in Great Falls, where 509 customers are affected.

The Fairfax outage stems from an out circuit and is expected to be restored between 5-8 p.m. Dominion estimates a restoration time of 6-9 p.m. for the Great Falls outage, which is directly attributed to the storm.

In Tysons, downed trees were reportedly blocking the ramp from eastbound Route 7 (Leesburg Pike) to northbound Route 123 (Chain Bridge Road), according to the NWS.

Hail was confirmed in Reston by resident Robyn Matthews, but the storm moved relatively quickly, prompting the NWS to let the warning expire on time at 3 p.m.

“The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property,” a 2:51 p.m. update said. “Therefore, the warning will be allowed to expire. However gusty winds and heavy rain are still possible with this thunderstorm.”

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Beware possible stormy weather in D.C. area, including threat of ‘large hail’

Rain on a car window (staff photo by Angela Woolsey)

Some pretty gnarly weather is bearing down on Fairfax County and the rest of the D.C. area.

The National Weather Service has issued a Severe Thunderstorm Watch for the region until 9 p.m.

A Hazardous Weather Outlook issued earlier that could last until midnight forecast heavy storms with the worst impact expected to be east of I-81, including Fairfax County, where the likelihood of severe weather is considered “moderate.”

“Damaging wind gusts and large hail are the primary threats along with the possibility of a brief tornado,” Fairfax County said in a blog post sharing the NWS alert. “Additionally, there is a threat for flash flooding across the entire outlook area this afternoon and evening.”

According to the Virginia Department of Transportation, the region along and east of I-95 could see wind gusts of “up to 75 mph, large hail and possible isolated tornadoes.”

The department is advising travelers to pay close attention to weather reports and to potential limit travel as conditions evolve, warning that the storm could take down trees and power lines and result in flooding.

“Whenever severe weather is expected, we partner with the Virginia Department of Emergency Management and Virginia State Police to coordinate efforts,” VDOT Commissioner Stephen C. Brich said. “Teams throughout the Commonwealth are prepared to address impacts from this storm. We ask for the public’s assistance to remain safe and stay aware of changing weather and road conditions in their area and along their travel routes.”

The storms are moving to the East Coast from the Midwest, which were hit by hail ranging from the size of a baseball to a grapefruit yesterday (Sunday), according to the Capital Weather Gang. Tornadoes have reportedly damaged dozens of homes and killed at least one person in Indiana.

Here’s more advice on navigating the upcoming weather from VDOT:

Obey all “road closed” signage.

“Turn around, don’t drown” – Do not attempt to travel through flooded roadways. According to the Centers for Disease Control, the primary causes of flood-related deaths occur to individuals driving into or walking in or near flood waters.

  • 6 inches of flood water is enough to knock an adult off of their feet
  • 12 inches can move most cars
  • 18-24 inches can carry away most large SUVs, vans and trucks

Be alert to debris, downed trees and power lines

Move over for emergency crews operating in or near roadways

Be alert to High Wind Advisories, especially on bridges or taller structures. High-profile vehicles such as tractor trailers, SUVs or box trucks are especially vulnerable and should not cross a bridge when a High Wind Advisory is posted.

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Red Flag Warning in effect for Fairfax County, indicating danger of fires

Fairfax County firefighters respond to a brush fire in Annandale on April 13, 2023 (via FCFRD/Twitter)

The National Weather Service has issued a Red Flag Warning for Fairfax County and the rest of the D.C. area.

In effect from noon until 8 p.m. today (Tuesday), the alert says a combination of strong wind gusts and low humidity have raised the risk of outdoor fires.

“A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly,” the NWS said. “A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.”

The full alert is below:

…RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR VIRGINIA, SOUTHERN MARYLAND, AND EASTERN WEST VIRGINIA PANHANDLE…

* WINDS…West 15 to 25 mph with gusts up to 45 mph.

* RELATIVE HUMIDITY…As low as 15 percent.

* IMPACTS…Critical fire weather conditions are expected through this evening. All outdoor burning is discouraged, as fires could rapidly spread and become uncontrollable.

* FUEL MOISTURE…Dropping to around 7 or 8 percent.

It’s a higher-level warning than the “elevated threat” alert that the NWS issued last Wednesday (April 12) when there were similar weather conditions.

The Fairfax County Department of Emergency Management and Security advises that cigarettes and other smoking materials should be disposed properly in water, sand or an ash tray.

The Virginia Department of Transportation said there were “several reports of brush fires” last week. A brush fire near the Evergreen House apartments in Annandale on Thursday (April 13) affected about 2 acres of land, though the Fairfax County Fire and Rescue Department reported that there were no injuries.

Virginia’s spring fire season typically falls between Feb. 15 and April 30, according to the state’s forestry department.

The D.C. area is currently in the midst of its warmest year on record, the Capital Weather Gang reported, with the 46.9-degree average temperature at Dulles International Airport surpassing the previous record in 2012 by 1 degree.

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Risk of wildfires elevated today in D.C. area, National Weather Service warns

Above-average temperatures for April are forecast for the D.C. today (via NWS/Twitter)

Fairfax County and the rest of the D.C. area should be on alert for potential outdoor fire hazards today (Wednesday), the National Weather Service says.

A combination of wind gusts and dry weather has created an “elevated threat” of wildfires throughout the region until the early evening, according to a special weather statement issued just after 9 a.m.

From the alert, which will be in effect until 8 p.m.:

…ELEVATED THREAT FOR THE SPREAD OF WILDFIRES THROUGH THE EARLY EVENING…

West to northwest winds of 10 to 15 mph are expected with gusts around 20 to 25 mph through this afternoon and relative humidity values will fall to between 20 and 30 percent. Given recent dry weather, fuels are very dry. Therefore, an elevated fire danger will continue until about 8 PM before the winds gradually weaken and humidity rises.

Outdoor burning is strongly discouraged during this time. Please refer to your local burn permitting authority on whether you can burn. If you do burn, use extreme caution and ensure fire suppression is readily available.

Some areas of Northern Virginia further to the west are under a Red Flag Warning.

The fire risk comes as temperatures are expected to reach the low 80s, which is well above average for April, according to the weather service.

That warmer-than-average trend is projected to continue into tomorrow (Thursday) and Friday (April 14), the Capital Weather Gang forecasts, stating that the next couple of days could feel like early summer.

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High Wind Warning issued for Fairfax County ahead of Saturday storm

U.S., Virginia and Fairfax County flags blow in wind (staff photo by Jay Westcott)

The time to get any patio furniture and other loose, outdoor objects inside is now.

At 2:29 p.m. today (Friday), the National Weather Service issued a High Wind Warning for the D.C. area, including Fairfax County, in anticipation of an encroaching storm.

Set to take effect from noon tomorrow (Saturday) until midnight, the alert warns of wind gusts that could reach up to 60 mph, raising the potential for power outages and travel difficulties.

…HIGH WIND WARNING IN EFFECT FROM NOON SATURDAY TO MIDNIGHT EDT SATURDAY NIGHT…

* WHAT…Southwest winds 20 to 30 mph with gusts up to 50 mph Saturday afternoon, becoming northwest 25 to 35 mph with gusts up to 60 mph Saturday evening.

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

* WHEN…From noon Saturday to midnight EDT Saturday night. The strongest winds are expected Saturday evening.

* IMPACTS…Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.

“People should avoid being outside in forested areas and around trees and branches,” the NWS said. “If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive.”

The storm has been moving east after slamming California with heavy winds, rain and snow earlier this week. Nearly 90 million people across 21 states are under a hazardous weather alert, as the Midwest and some Southern states face the risk of tornadoes just a week after one killed at least 26 people in Mississippi and Alabama.

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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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Below freezing temperatures possible in Fairfax County early Thursday

The National Weather Service has issued a Freeze Warning for the D.C. area on Oct. 20, 2022 (via NWS alert)

Temperatures could drop below freezing overnight in Fairfax County, continuing a cold streak that took hold earlier today (Wednesday).

The National Weather Service has issued a Freeze Warning that will take effect from 1 to 9 a.m. tomorrow (Thursday), stating that sub-freezing temperatures as low as 30 degrees Fahrenheit can be expected.

“Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing,” the NWS said.

Here’s more on what to do from the alert, which covers the D.C. area up past Hagerstown in Maryland:

Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.

According to the NWS forecast, this week is expected to close out with temperatures rising to highs in the upper-60s during the day on Saturday and Sunday (Oct. 22-23). Nights will see lows ranging from 37 degrees Thursday to 45 degrees on Saturday.

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