The most recent burst of rain caused significant flooding near the Braddock Road metro station and multiple vehicles were reported stranded on East Braddock Road due to high water. This second wave of heavy rain pushed storm totals over 4 inches just to the east of Annadale.
Unless rain intensifies, this will be our last update. Scroll down for previous updates and the forecast through tomorrow. Below, see a couple images of earlier flooding
5:30 p.m. — Area of heavy rain transiting Fairfax County to bring more flooding
One more burst of heavy rain is pushing through Fairfax County bring another round of flooding from east to west. This will take about 30 to 45 minutes to pass but will potentially renew flooding in the South Arlington to Annandale area hit hard earlier. Already, flooding is occurring in Alexandria. By 6:30 p.m. or so, the worst should be over. This area of rain could easily add an inch to earlier totals, possibly two inches in a few spots.
A new flash flood warning has been added for Alexandria until 8:30 p.m. on account of this latest cloudburst:
5:00 p.m. — Rain to continue into this evening around region, but intensity/flood threat to slowly decrease
After several instances of flooding between central Fairfax County and the District, rainfall has started to ease some across the region. Still, heavy downpours linger along the south side of the Beltway and both to its northwest and southwest, where new pockets of flooding cannot be ruled out. Note that a flash flood watch continues until 9 p.m.
Showers and localized downpours will remain possible for the next few hours but should gradually decrease in intensity. Rainfall totals so far have been highly variable, but quite a few areas from the District west have seen 1 to 3 inches, with some 3 to 4-inch totals around Annandale and Springfield.
Serious flooding also occurred to our south. Richmond was under a flash flood warning and high water engulfed I-95.
4:25 p.m. — Heaviest rain shifts west of Beltway as flood threat eases for District and eastern Fairfax County
Radar shows the heaviest rain has pushed west of the Beltway with downpours focused along and west of Interstate 270 north of the Beltway and west of Interstate 95 south of the Beltway.
Rain has eased in areas from Annandale to the District, where areas of flooding occurred earlier; however, please use caution in these zone as a few areas of flooding may linger due to high stream levels or standing water in poor drainage areas. Several rescues were needed for cars stuck in high water in Fairfax County.
Radar indicates some of the heaviest rain occurred around Annandale, where 2 to 3.5 inches fell. Elsewhere 1 to 2 inches was common.
Pockets of flooding could develop in areas west of I-95 for the next hour or two due to the intensity of rainfall and the slow movement of storms. We’ll keep you posted.
3:55 p.m. — Flash flood warning issued for southwest portion of the District into central Fairfax County until 7 p.m.
Extremely heavy rain, which has already produced 1 to 2 inches, is falling in the zone from Arlington to Annandale, prompting a flash flood warning. Some of the heavy rainfall has also spread west and south toward Fairfax and Springfield where flooding is also possible. Rainfall totals of 2 to 3 inches are possible over this zone, with isolated amounts up to 4 inches. The heaviest rain tends to last about an hour in any location before easing as it shifts west.
Try to avoid driving amid these downpours and do not attempt to cross a flooded road. Turn around, don’t drown.
Earlier torrents caused flooding on Interstate 395 before the 14th Street Bridge in Arlington County as well as on Columbia Pike, closing the road in both directions at South Greenbriar Street. Images from social media are shown below:
Rain in the above locations has since eased.
3:30 p.m. — Flood warning issued for the District and areas just to the west until 9 p.m.
Downpours have already put down one to 1.5 inches of rain, prompting a flood warning for the District and its immediate surroundings (see red-shaded area below). Up to another inch or two of rain is possible.
Flooding near creeks and streams and in poor-drainage areas may begin soon, if it hasn’t already.
Try to avoid driving near creeks and streams that easily flood, and if you encounter a flooded road, turn around. The height of floodwaters can be difficult to judge.
Original forecast from 3:25 p.m.
Today’s temperatures were held in check by increased cloudiness, plus the development of showers and storms this afternoon. Even so, highs were generally a few degrees above normal. The warmth mixed with high humidity is fueling some intense downpours that may continue into the evening. They’ll be capable of some flash flooding in the hardest-hit spots.
Through Tonight: Scattered showers and storms drench parts of the area through sunset, or a bit beyond. With high moisture levels present, these storms could produce rainfall rates of up to two inches per hour. That would be enough to cause flash flooding. Lightning and a few strong bursts of wind are additional hazards to be aware of. Rain ends late evening, but it’s muggy overnight and some fog may form as temperatures dip to a range of mid-60s to lower 70s.
Tomorrow (Friday): We’re dealing with clouds again. Probably not as numerous as today, and the afternoon could sneak in some sunny moments. Odds of rain are highest early in the day — and not terribly high. Hit-or-miss kind of stuff, trending toward miss. Highs are near 80 or into the low 80s most spots.
Technical discussion on flood potential: The National Weather Service issued a special technical bulletin about the potential for flooding in our region this afternoon and evening. If you’re looking for more detail, check out their recent discussion on the situation, by clicking on the link inside the embedded tweet below:
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Updated forecast: Heavy rain to gradually ease after flooding in parts of region - The Washington Post
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