D.C.-area forecast: A steamy Sunday with hefty afternoon storms likely

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* Flood warning for northern Fairfax County, the District and Montgomery County till round 2 a.m. *

8:50 p.m. — Severe storms depart with cooler climate incoming, however rain and flood danger linger

Our turbulent bout of climate is coming to a detailed. Today’s warmth (Dulles set a document excessive of 91) and humidity energized two traces of extreme storms. The first line concentrated from the Beltway northward, producing a 59 mph gust at Reagan National Airport. The second line swept by means of a lot of the world, unleashing a 59 mph gust at Dulles Airport. In the wake of the second line, PowerOutage.US reviews about 20,000 prospects with out electrical energy in northern Virginia.

Both traces of storms have been chargeable for scattered downed bushes throughout the area, whereas the primary line produced small hail from Vienna by means of South Arlington.

Radar reveals heavy storms from the second line have departed all however southern Maryland. However, reasonable rain of their wake — mixed with downpours from earlier — have raised the degrees of space waterways, prompting flooding warnings in elements of Fairfax County, Montgomery County and the District. Avoid driving close to streams that flood tonight and keep in mind by no means cross a flooded street in your automobile: Turn round, don’t drown.

The rain ought to finish over the following couple of hours however excessive water could linger into the predawn hours. It stays largely cloudy in a single day with a lot cooler circumstances. Low temperatures will vary from 58-62 levels with a north wind at 10-15 mph.

On Monday, cloud cover might be arduous to interrupt within the first a part of the day, with some breaks of sunshine potential within the afternoon. Much cooler temperatures with highs within the low 70s and a lightweight north wind. Just a slight likelihood at a stray bathe within the afternoon. Shower probabilities enhance in a single day tomorrow with continued cool temperatures. Lows will vary from 55-59 levels.

7:50 p.m. — Storm warning prolonged into areas east of I-95

The second line of storms is now approaching I-95 north of the Beltway and has already crossed it to the south. The line is producing very heavy rain and lightning, with the strongest winds typically south of downtown Washington. A extreme thunderstorm warning covers all of our jap suburbs by means of 8:30 p.m. The areas most liable to damaging wind gusts are alongside and south of Rt. 50.

7:40 p.m. — Menacing shelf cloud fronts extreme storms

The line of extreme storms, which stretches from close to Damascus in Montgomery County south to round Fredericksburg, is coming into the District now. It not too long ago unleashed a gust of 68 mph close to Centreville. Here are some scenes of what the storms seem like on strategy:

7:10 p.m. — Severe thunderstorm warning for a lot of space as second line strikes in

This second line of storm has picked up some steam in our western areas prompting a extreme thunderstorm warning for just about the whole space alongside and west of Interstate 95 till 8 p.m. Winds gusted as much as 58 mph because the storm hit Dulles Airport and bursts of damaging winds are potential within the warning space. However, we do suppose the storms could weaken some as they get nearer to the metro space because of the earlier storms (which used up among the accessible power).

6:30 p.m. — New line of storms approaching western areas — to cross by means of space subsequent couple hours

While the southernmost cell alongside the preliminary line of storms remains to be packing a punch in Prince George’s County, we’re additionally watching a second line coming in from the west.

This second line stretch from northern Loudoun County to east of Charlottesville however there are not any extreme storm warnings related with it in Northern Virginia. It could have issue gaining an excessive amount of depth when it reaches the D.C. space as a result of the sooner storms used up lots of the accessible power.

Still, this second line might produce some downpours because it passes by means of the world from west to east over the following couple of hours. These storms could also be a bit extra intense in our southern areas which weren’t hit by the preliminary line whereas fully lacking or simply skirting areas north of Montgomery County.

6:05 p.m. — Storms from northern Anne Arundel County to Arlington pushing east, producing hail in some areas

The line of storms has primarily pushed east of I-95, with storms extending from close to Glen Burnie in Anne Arundel County to south Arlington. The storms are most intense on the road’s southern flank the place they’ve produced hail as they’ve tracked by means of Vienna, Falls Church and Arlington. The storm additionally unleashed a 59 mph wind gust at Reagan National Airport and we’ve seen some scattered reviews of downed trees.

A new extreme thunderstorm warning is in impact for the southern a part of the road stretching from south Arlington by means of Alexandria and downtown Washington into southwest Prince George’s County, the place the storm might proceed to supply hail along with robust wind gusts, downpours and lightning.

We’re additionally monitoring a trailing line of storms that has simply crossed Interstate 81 and stretches from simply east of Winchester by means of Charlottesville. This line might produce some scattered extreme storms in our southern suburbs between about 7 and 9 p.m. Areas from the Beltway north, nonetheless, could have in all probability seen their worst climate from the preliminary line.

5:35 p.m. — Scenes of the storms

Radar reveals the assorted storm cells have consolidated right into a strong line from Baltimore to Silver Spring to northwest Washington to Arlington to Falls Church — very near paralleling Interstate 95. The storms — pushing eastward — are producing heavy downpours, a couple of robust wind gusts, lightning and a little bit of hail. Here are some scenes from social media:

5:12 p.m. — Severe thunderstorm warning for jap Fairfax County, southern Montgomery County and northwest Washington till 6 p.m.

As famous within the 5:10 p.m. replace under, the storm in northern Fairfax County has expanded and intensified prompting a extreme thunderstorm warning for areas to the east and southeast. This storm will produce very heavy rain, robust winds, lightning and a few hail because it pushes east and southeast contained in the Beltway.

We’ve obtained a number of reviews of small hail from Vienna as this storm has blossomed. Head inside if you happen to’re beneath this warning!

5:10 p.m. — Storm has expanded south and can transfer inside Beltway space subsequent hour

While heavy storms drench northeast Montgomery and Howard counties, a storm cell has expanded over northern Fairfax County and is poised to go contained in the Beltway; places together with McLean, Arlington, Bethesda, northwest Washington and Silver Spring ought to anticipate some downpours and lightning over the following hour. Areas south of I-66 and Rt. 50 could get grazed except the storm is ready to increase farther south.

4:50 p.m. — Heavy storms in northern Montgomery County heading towards Howard County

Much of northern Montgomery County is beneath a extreme thunderstorm warning as a cell with very heavy rain, gusty winds, frequent lightning and maybe some small hail passes by. It will push by means of a lot of Howard County over the following hour.

A extreme thunderstorm warning has been issued for a lot of Howard, southern Baltimore and northern Anne Arundel counties till 5:30 p.m. This contains the town of Baltimore.

Some weaker cells path to the southwest close to the Fairfax and Loudoun county line between Sterling and Oakton usually are not significantly intense in the mean time however might develop as they push east by means of northern Fairfax County by means of round 5:30 p.m.

We’re additionally monitoring a line of showers and storms to the west pushing towards the Interstate 81 hall that might have an effect on a lot of the area round sundown.

4:25 p.m. — Severe storms in Loudoun County and close to Frederick-Montgomery county line pushing east-northeast

Radar reveals two areas of intense storms — north and northwest of the Beltway, which have prompted warnings:

  • A multicell storm east of Frederick is bringing heavy downpours, gusty winds and lightning from round Mt. Airy to Clarksburg. It’s geared toward Damascus and western Howard County over the following half-hour or so. This storm has a historical past of producing small hail.
  • A storm close to Ashburn is pushing east-northwest towards Sterling and southwest Montgomery County. It might attain the I-270 hall close to Rockville by round 5 p.m.

Although these storms could look like headed north of the Beltway, they might grow to be joined and increase to the south over the following 40 minutes. We will monitor them. If these storms miss, a more solid line developing along the front in West Virginia will cross by means of a lot of the world nearer to sundown.

2:15 p.m. — Severe thunderstorm watch issued till 9 p.m.

As a powerful chilly entrance meets sizzling, humid air over the area, thunderstorms are anticipated to erupt late this afternoon and early this night. The National Weather Service has issued a extreme thunderstorm watch over a big space affecting greater than 22 million those who extends from central Virginia to central New York, together with the Washington-Baltimore area, till 9 p.m.

Storms are most possible between about 4 and eight p.m., arriving first in our western areas. In the speedy space (contained in the Beltway), mannequin simulations counsel they are going to arrive round 5 or 6 p.m. though small shifts on this timing are potential.

“Today’s setup features a slowly approaching cold front and an unstable airmass,” wrote Jeff Halverson, Capital Weather Gang’s extreme climate professional. “One to two rounds of storms are expected to fire this afternoon into evening. Storms will generally be short-lived but locally intense, with scattered instances of wind damage, torrential rain and significant lightning. The first batch will move off the mountains mid-afternoon with a possible second batch along the cold front this evening.”

Remember {that a} extreme thunderstorm watch means circumstances are favorable for extreme storms, not a assure. However, if a extreme thunderstorm warning is issued on your location, it means a extreme storm is imminent and it is best to search shelter instantly.

Stay weather-aware in case you are outdoors into this night, and head indoors if thunder roars.

We will submit further updates as storms develop and transfer into the world.

Original forecast from 6 a.m.

A considerably subjective score of the day’s climate, on a scale of 0 to 10.

3/10: The air stays sizzling, humid and stagnant. Late-day storms are poised to brush the warmth and humidity away, however they might be robust to extreme as they reduce outside plans quick.

  • Today: Hot and humid, p.m. showers and storms. Highs: Near 90 to low 90s.
  • Tonight: Lingering night showers and storms. Lows: Low to mid-60s.
  • Tomorrow: Turning partly sunny, cooler, passing p.m. bathe? Highs: Low 70s.

It’s nonetheless unseasonably sizzling and humid, regardless of growing midafternoon clouds, with a warmth index reaching the mid-90s making it uncomfortable to be outside for too lengthy. A chilly entrance in all probability triggers a spherical of storms late this afternoon into night, adopted by a lot cooler air Monday by means of Wednesday with some clouds and some showers.

Today (Sunday): Skies are partly to largely sunny, with perhaps a spotty morning bathe or sprinkle, as temperatures as soon as once more head for effectively above common, with afternoon highs close to 90 to the low 90s and loads of humidity (dew factors within the mid- to higher 60s). Clouds enhance by midafternoon as a chilly entrance approaches, with a line of storms likely shifting by means of from west to east round 4 to 9 p.m. A few storms might be extreme with damaging winds, heavy rain and lightning. Confidence: Medium-High

Tonight: The strongest showers and storms ought to depart to the east by 9 p.m. or so, however a lingering weaker bathe or thundershower stays potential by means of round midnight. Otherwise, cloudy skies stay as a breeze from the north brings in cooler and drier air with lows within the low to mid-60s. Confidence: Medium-High

Follow us on Facebook, Twitter, and Instagram for the newest climate updates. Keep studying for the forecast by means of the weekend …

Tomorrow (Monday): The cloud cover may be sluggish to depart, however we should always find yourself partly sunny. We’re noticeably cooler with highs within the low 70s — far more seasonable for this time of year — and might’t rule out a passing afternoon bathe. A little bit of a breeze out of the north provides a refreshing coolness to the air, and it ought to really feel just a little simpler to breathe because of the decrease humidity (dew factors close to 50). Confidence: Medium-High

Tomorrow night time: If you may handle the pollen ranges, it’s a great night time to open the home windows, even with the possibility of some showers. Cooler lows within the mid-50s to close 60 make for a extra tranquil night time for restful sleep. Confidence: Medium

A stalled entrance lingers to our south Tuesday and Wednesday. That means partly to largely cloudy skies and the possibility of some showers every day, although certainly not a washout as of now, with daytime highs close to 70 to the mid-70s. Confidence: Medium

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