Delaware Tornado Warnings by County 3 counties · live NWS tornado warnings · history & climatology since 1950 Counties Kent County DE New Castle County DE Sussex County DE More for Delaware Delaware tornado history FEMA disaster declarations in Delaware Get real-time tornado alerts for Delaware Vortex monitors NWS warnings, SPC outlooks, and live radar — with push + phone call alerts when storms threaten your location. Open the Vortex app →