A storm rolled through the D.C. region on Monday evening, bringing strong winds, hail and even tornado warnings. Into the overnight hours into Tuesday, here’s what you need to know.

• A Flash Flood Warning is in effect for D.C., northern Prince George’s County, Maryland, and Arlington and Fairfax counties in Virginia, until 2:45 a.m. Tuesday.
• A Coastal Flood Advisory听is in effect in the District of Columbia until 4 a.m., with up to half a foot of water above ground level in low lying areas due to tidal flooding.
• A Tornado Watch was in effect until 12 a.m. for southeast Maryland.

WTOP meteorologist Mike Stinneford said this threat level, which ranked four out of 5, is “unusual for our area.”

The last time the D.C. area was at this level was more than a decade ago, in June 2013, .

Outages

As of 11:30 p.m., more than 120,000 homes and businesses in D.C., Maryland and Virginia are without power. Dominion Energy is reporting nearly 20,000 outages.

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Forecast:

MONDAY NIGHT:
Scattered showers and thunderstorms, ending by midnight
Lows:听Mid 60s to lower 70s

TUESDAY:
Partly cloudy, breezy, cooler and less humid
Highs: Upper 80s
Heat Index: Upper 80s

WEDNESDAY:
Mostly sunny with low humidity
Highs: Upper 80s

THURSDAY:
A chance of afternoon/evening storms
Highs: Low to mid-80s

Current weather:

WTOP’s Ciara听Wells, David Andrews and Kate Corliss contributed to this reporting.

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It’s conditions like that can lead to serious problems for your home, and all the more reason you should prepare for the possibility 鈥� or know how to respond if it does suffer damage.

鈥淲hen you have storms as intense as we did three days ago, homes may also have developed water intrusion where there was none before,鈥� said Eldad Moraru, with at Compass Realty.

He said that includes homes that don鈥檛 have a history of water issues in lower levels of the home. At one house up for sale, Moraru said the owner saw water get into the basement, and it forced them to hire teams to clean up the damage and replace the carpet.

鈥淲ater can really be an issue,鈥� Moraru said.

He said if water gets into your home, the clock starts ticking, and it’s a race against the clock to get the area dry.

The water can soak into everything, from the drywall to the carpet, especially the padding underneath the carpet which Moraru said many times cannot be saved.

鈥淸The padding’s] gonna soak up all the water, and it’s gonna be incredibly hard to get dry and that’s just a perfect breeding ground for mold,鈥� Moraru said.

He recommends hiring professionals to dry the room out, but for those who want to do it themselves, they should start by using squeegees and a wet vac to get all the water removed. Industrial-size fans should be brought in to dry the area afterward.

Moraru said, if you haven鈥檛 already, there are ways to better protect your home from water issues. One way involves inspecting the property by making sure it is set up to where stormwater moves away from your home.

Correcting issues may include getting a landscaper to make sure your yard has proper grading, looking at installing a and getting gutters cleaned or down spouts fixed or adjusted.

鈥淚鈥檝e seen many times when downspouts don鈥檛 have that diverter at the bottom and water is essentially coming right down by the foundation, and that鈥檚 not good,鈥� Moraru said.

In some cases you can鈥檛 stop the water from gathering at your home, so in those situations Moraru said sump pumps can be installed in basements. The devices constantly pump the water that collects away from your home. He also strongly recommends you install one that has a battery backup.

鈥淚 can鈥檛 tell you how many times I’ve seen where people have a sump pump, they don鈥檛 have the battery back up, and if we lose power you essentially have zero protection,鈥� he said.

Moraru also recommends that if strong storms hit and you鈥檙e out of town, have someone check on it after the storm moves through.

鈥淚 would recommend that you have a neighbor with a key, so that if a storm hits, they can go into your house and make sure there are no issues with your basement,鈥� he said.

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This is in the wake of a fast-moving storm that began sweeping through the WTOP listening area in the morning, bringing with it plenty of rain and minor amounts of snow to the north and west.

Some school systems have closed or delayed their openings. Get the full list .

There is a Wind Advisory now until 6 p.m.听for the counties of Anne Arundel, St. Mary, Calvert, Southern Baltimore.

Farther north along the East Coast, from Boston to New York, people are bracing for .

While much of the D.C. area escaped the worst that the storm had to offer, WTOP’s Neal Augenstein says things are different at the top of Blue Ridge Mountain, overlooking the Shenandoah Valley, near the West Virginia line. Crusty slush has frozen on the winding road and the wind at the top of the mountain is icy cold and strong. While most commuters would never have to take the route, it is a picture-perfect view of winter in Virginia.

Yes, there’s snow today in Virginia — if you know where to look, like here in Bluemont.

鈥� Neal Augenstein (@AugensteinWTOP)

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WEATHER:

All the snow and rain showers have moved northeast of the region as the New England area prepares for blizzard-type conditions from the same system that brought the听D.C. area听its wet Thursday morning. There could be some brightening of the skies Thursday,听but mostly to partly-cloudy skies. Flurries and some snow squalls may occur into the afternoon and evening commute. If any of these do occur, there may be听a brief听coating on the ground and even low visibilities.

Upcoming windy conditions are the main concern for Thursday. Gusts will fly out of the northwest moving at 35+ mph. With temperatures falling steadily, expect wind chills in the 20s for much of the daytime hours. After 6 p.m., wind chills will fall into the teens.

Get the full forecast on the .

TRAFFIC:

Roads are wet. WTOP Traffic has no major incidents to report, though there are delays and traffic slowdowns due to the weather.

The outer loop of the Beltway in Maryland is now seeing heavier delays.

Northbound I-95 in Virginia is also now slowing amid heavy traffic.

Follow the latest traffic developments in .

COMMUTING/TRAVEL:

Area airports are already seeing hundreds of canceled flights. Reagan Airport cancellations听have now hit 185, 75 at BWI and 47 at Dulles.

No problems are reported on MARC in Maryland or Virginia Railway Express.

Metrorail reports no problems at this time.

No delays reported on Amtrak.

Elsewhere along the East Coast, thousands of flights have been canceled, including .

CLOSINGS AND DELAYS:

Get the full list .

LISTEN LIVE:

Listen live on , on the or tune in to 103.5 FM.

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