A ridge of high pressure aloft along with a southwest flow around surface high pressure resulted in hot and humid conditions during the Fourth of July through the 8th. Max temperatures were in the 90s and 100s across most locations.
Every event with a place to put it; 3 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.
A ridge of high pressure aloft along with a southwest flow around surface high pressure resulted in hot and humid conditions during the Fourth of July through the 8th. Max temperatures were in the 90s and 100s across most locations. The hottest days were on the 6th and 7th of July where most locations soared past 100 degrees.
The national radar mosaic for the moment the first event began.
3 heat. Local standard time, as filed.
Authorities in Prince Georges County reported that twenty-eight people were taken to the hospital due to heat-related illnesses from July 4th through July 8th.
The U.S. Naval Academy reported that four midshipmen required medical attention after completing an obstacle course. The medical attention was necessary due to the heat.
A fatality was discovered due to the heat.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Heat, Southern Baltimore | 2010-07-04 | 65 | Female | Permanent Home | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maryland in 2010Every state in 2010This day in weather historyWarnings in Maryland, July 2010
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: 253061, 253063, 253066.