WWUS20 KWNS 201856 SEL5 SPC WW 201856 DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-CWZ000-210200- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 605 NWS Storm Prediction Center Norman OK 255 PM EDT Thu Aug 20 2026 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of District Of Columbia Delaware Central and Eastern Maryland Central and Southern New Jersey Southeast Pennsylvania Northern Virginia Coastal Waters * Effective this Thursday afternoon and evening from 255 PM until 1000 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Scattered severe thunderstorms are forecast to continue to develop and intensify through the afternoon and into the evening. A few of the stronger storms will be supercells capable of a risk for tornadoes, damaging gusts, and large hail. A consolidation of storms will probably occur during the evening as one or two line segments develops with an attendant risk for damaging winds and possibly a tornado. The tornado watch area is approximately along and 70 statute miles north and south of a line from 15 miles southwest of Washington DC to 45 miles east northeast of Dover DE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 604... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26025. ...Smith