Advarsler, Sewells Farm

Tornado Watch issued July 18 at 2:19PM EDT until July 18 at 9:00PM EDT by NWS Baltimore MD/Washington DC THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 495 UNTIL 9 PM EDT THIS EVENING WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 496. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN MARYLAND THE NEW WATCH INCLUDES 5 COUNTIES IN CENTRAL MARYLAND HOWARD MONTGOMERY PRINCE GEORGES IN NORTH CENTRAL MARYLAND CARROLL FREDERICK THIS INCLUDES THE CITIES OF BALLENGER CREEK, BETHESDA, BOWIE, BOYDS, BUCKEYSTOWN, CLARKSVILLE, CLINTON, COLLEGE PARK, COLUMBIA, ELDERSBURG, FOUR CORNERS, FREDERICK, GAITHERSBURG, GAMBER, GERMANTOWN, GLENMONT, GREENBELT, HISTORIC ELLICOTT CITY, MONTPELIER, PARK MILLS, SILVER SPRING, SIMPSONVILLE, SUITLAND-SILVER HILL, TANTALLON, WESTMINSTER, AND WOODSTOCK.

Flood Watch issued July 18 at 11:43AM EDT until July 18 at 8:00PM EDT by NWS Baltimore MD/Washington DC A slow-moving front will interact with a very humid airmass in place to result in multiple rounds of showers and thunderstorms this afternoon and evening. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Washington DC, and portions of Maryland, including the following areas, Anne Arundel, Carroll, Cecil, Central and Southeast Howard, Central and Southeast Montgomery, Frederick, Northern Baltimore, Northwest Harford, Northwest Howard, Northwest Montgomery, Prince Georges, Southeast Harford and Southern Baltimore, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun, Fairfax and Western Loudoun. * WHEN...From 2 PM this afternoon through 8 PM EDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - High humidity coupled with a slow-moving front is expected to result in multiple rounds of showers and thunderstorms this afternoon and evening. Localized rainfall rates of up to 2 inches per hour, with isolated totals of 2 to 4 inches are possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.