NWS Issues Thunderstorm Warnings as Washington Ties 100-Degree July 4 Record
Updated
Updated · FOX 5 DC · Jul 4
NWS Issues Thunderstorm Warnings as Washington Ties 100-Degree July 4 Record
3 articles · Updated · FOX 5 DC · Jul 4
Summary
Severe Thunderstorm Warnings covered parts of Maryland, Virginia and West Virginia until 5:45 p.m. Saturday, while Washington hit 100 degrees and tied its Fourth of July record high.
Heat and moisture trapped under a regional heat dome raised heat index values to 110-115 and fueled fast-developing storms capable of lightning and brief heavy rain.
D.C. canceled the National Independence Day Parade and delayed National Mall entry for the Salute to America program until 5 p.m.; other local parades and fireworks were also pushed back.
The Extreme Heat Warning remained in effect until 9 p.m., with forecasters expecting storm chances to build after 5 p.m. and some severe cells to linger into the night.