Baltimore, Maryland and Philadelphia, Pennsylvania Face 30 to 44 Percent Severe Wind Probability Thursday Evening With Damaging Gusts Heavy Rain and Lightning Possible

BALTIMORE, MARYLAND — Heat and humidity are fueling a damaging wind threat across the Mid-Atlantic Thursday evening, with the SPC Severe Wind Outlook valid through June 12 placing Baltimore, Philadelphia, Annapolis, and Washington DC inside a 30 to 44 percent severe wind probability zone during a primary storm window running from 6PM to 11PM.

Highest Wind Probability Covers Baltimore Philadelphia and Annapolis Corridor

The NWS Storm Prediction Center severe wind outlook updated at 7:58 AM CDT Thursday June 11 shows red 30 to 44 percent wind probability shading centered directly over Baltimore, Philadelphia, Dover, Annapolis, and the surrounding Maryland and Delaware corridor. This represents the highest wind probability on the map across the entire FEMA Region 3 coverage area.

Yellow 15 to 29 percent shading surrounds the core, extending the damaging wind threat across Washington DC, Harrisburg, Lancaster, Allentown, Scranton, Fredericksburg, and Richmond.

Primary Storm Window Runs 6PM to 11PM Thursday

The most likely timeframe for intense storm activity across the Mid-Atlantic falls between 6PM and 11PM Thursday evening. Forecasters note storms will be hit or miss rather than widespread, meaning some communities will see significant impacts while others may see nothing at all.

Main hazards identified with any storms that develop include damaging wind gusts, heavy rainfall, and dangerous lightning. A few storm cells could develop earlier in the afternoon ahead of the primary evening window.

Broader Wind Threat Covers Pittsburgh Washington DC and Richmond

The 5 to 14 percent brown zone extends the severe wind footprint outward across Pittsburgh, Wheeling, Parkersburg, Charleston, Roanoke, Norfolk, and Virginia Beach. The broad coverage of the outlook reflects the extensive reach of Thursday’s heat and humidity-fueled storm potential across the Mid-Atlantic and central Appalachian region.

Residents across the Baltimore, Philadelphia, and Washington DC corridor should plan outdoor activities around the 6PM to 11PM storm window and be prepared to move indoors quickly if storms approach.

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