Hot and humid conditions overspread much of the region on July 15 and July 16, resulting in the hottest temperatures of the Summer in 2024. Heat index values reached and exceeded 100 to 110, with daily record high temperatures tied and set.
Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
Hot and humid conditions overspread much of the region on July 15 and July 16, resulting in the hottest temperatures of the Summer in 2024. Heat index values reached and exceeded 100 to 110, with daily record high temperatures tied and set.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before the first event at Jul 15, 9:07 AM EST, 2 hours 53 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
7 excessive heat. Local standard time, as filed.
The ASOS at Ronald Reagan Washington National Airport (KDCA) measured a peak heat index value of 108. The high temperature at Washington DC was 102F. Several mesonets in Arlington County measured peak heat indices around 110.
The ASOS at Washington Dulles International Airport (KIAD) measured a peak heat index value of 108. The high temperature at Washington Dulles was 99F. Several mesonets in the county measured peak heat indices around 110.
The AWOS at nearby Quantico Marine Base (KNYG) measured a peak heat index value of 110, with a high temperature of 98F. Several mesonets in the county measured peak heat indices around 110.
The AWOS at Quantico Marine Base (KNYG) measured a peak heat index value of 110, with a high temperature of 98F. The high temperature at Manassas Regional Airport (KHEF) was 97F. Several mesonets in the county measured peak heat indices around 110.
Several mesonets in the county measured peak heat indices around 110.
The AWOS at Front Royal-Warren County Airport (KFRR) measured a peak heat index value of 104, with a high temperature of 100F. Several mesonets in the county measured peak heat indices around 105.
The AWOS at Luray Airport (KLUA) measured a peak heat index value of 103, with a high temperature of 100F. Several mesonets in the county measured peak heat indices around 105.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2024Every state in 2024This day in weather historyWarnings in Virginia, July 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1205037, 1205038, 1205039, 1205040, 1205041, 1205043, 1205044.