Weather Outlook: Prince George's and Montgomery Counties

The National Weather Service has issued a hazardous weather outlook for the DC Metro region and most of Maryland.


It may be a messy commute this afternoon in Prince George's and Montgomery counties, when heavy traffic could create gridlock on the Beltway and heavy rain could close roads due to flooding.

Experts are warning that areas along the East Coast could see flash flooding Tuesday and Wednesday as the remnants of Isaac send bouts of heavy rain our way.

In the forecast are scattered showers and thunderstorms through Wednesday. NWS forecasters believe there's a 40 percent chance of rain that will occur before 10 p.m.


The National Weather Service has issued a hazardous weather outlook for much of the Baltimore/Washington region, including Prince George's and parts of Montgomery counties. 

Are there areas you know of that regularly flood with heavy rains? Tell us in comments. 

Heavy rainfall could result in localized flash flooding this afternoon and evening. The risk for heavy rainfall and localized flash flooding will continue into Wednesday, according to the NWS website.

Tropical moisture associated with the remnants of Isaac interacting with a frontal system will bring a flash flooding threat to the East Coast on Tuesday. Showers and thunderstorms will be capable of producing heavy rainfall that could lead to incidents of flash flooding, according to the NWS. 

There's also a small craft advisory in effect for those portions of Maryland in the Chesapeake Bay and Lower Tidal Potomac River areas today.

In its annual "Turn Around, Don't Drown" campaign, the NWS works to educate citizens on the dangers of driving during flash floods. 

Each year, more deaths occur due to flooding than from any other severe weather-related hazard, the NWS reports. The main reason is that people underestimate the force and power of water. The NWS recommends the following safety tips: 

  • Avoid areas already flooded, especially if the water is flowing fast. Do not attempt to cross flowing streams. 
  • Road beds may be washed out under flood waters. NEVER drive through flooded roadways.
  • Do not camp or park your vehicle along streams and washes, particularly during threatening conditions.
  • Be especially cautious at night when it is harder to recognize flood dangers.

Editor's Note: This article has been clarified to reflect that the National Weather Service issued a hazardous weather outlook and not an alert. We'll continue to watch for new information from the National Weather Service and update this post with more information.

Earl Kepler September 04, 2012 at 03:12 PM
Sunnyside Ave. In Beltsville.
Moshe Haven September 04, 2012 at 03:42 PM
This is a mistake. There are no current or pending alerts from the National Weather Service. www.weather.com http://www.hpc.ncep.noaa.gov/qpf/94ewbg.gif First mistake I've seen on Bethesda Patch. Now that's a pretty good record!
Sonia Dasgupta (Editor) September 04, 2012 at 04:22 PM
Yes, the National Weather Service says mainly west of Blue Ridge mountains, but there's an alert for hazardous weather outlook around the entire Baltimore-Washington region and along the East Coast. Living in the area, we know how many times it can be wrong, but I figured it would be better to get it out there, just in case since our areas can flood easily. Thanks, Sonia
Moshe Haven September 04, 2012 at 08:15 PM
Thank you for updating the wording on that announcement.


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