August 10, 2022

Weather News Road Conditions

Weather News & Forecast

Heavy rains caused flash flooding in DC Metro

2 min read

Water flooded several neighborhoods as heavy rain moved in.

WASHINGTON — The skies opened Saturday night, and it poured across the region. Nearly 6 inches of rain fell across Prince George’s County, Montgomery County and D.C. Radar estimates five to seven inches of rain, with some estimates as high as 8 inches. Rainfall rates reached as two to three inches per hour. 

As the storms unleashed their wrath on the region, numerous flash flood warnings were issued. Emergency crews reported multiple water rescues in Montgomery County. 

The storms were caused by a slow-moving cold front that tapped into moist air fueling and heavy rain. Other factors came together to create the heavy rain event, such as Convective Available Potential Energy (CAPE) and thunderstorms fueling other storms. 

CAPE is the amount of energy the atmosphere has available to create storms. 

You can think of it as money in a storm bank; the more you have, the stronger the storm. Usually, 1,000 (J/Kg ) of CAPE is enough for a strong to severe storm.

Meteorologists at the National Weather Service working during the storms says the DMV had more than 2000 (J/Kg) of CAPE. (J/Kg is short for joules per kilogram and is measure of heat capacity).

Outflows from thunderstorms also helped to jumpstart new storms that kept dumping rain over the same areas. This is known as thunderstorm training. The cooler air that flows out of the storm destabilizes the atmosphere allowing new storms to form.

Here’s a look at rainfall totals throughout the region:

Sunday, July 3, 2022, 11:26 a.m.

Saturday, July 2, 2022, 9:05 p.m.

Sunday, July 3, 2022, 12:05 a.m.

RELATED: LIST: Names included in the 2022 hurricane season

RELATED: Here’s how long you should wait to go outside after a storm

RELATED: ‘Thunderstorm asthma’ | Here’s how thunderstorms can impact asthma and your allergies



2022-07-03 18:23:04

All news and articles are copyrighted to the respective authors and/or News Broadcasters. eWeatherNews is an independent Online News Aggregator


Read more from original source here…

Leave a Reply

Your email address will not be published.

eWeatherNews.Com | Newsphere by AF themes.