A southwest flow around Bermuda high over the western Atlantic pumped in hot and humid conditions on the 29th. Max temperatures were in the 90s along with dewpoints in the upper 60s and lower 70s.
Every event with a place to put it; 1 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 southwest flow around Bermuda high over the western Atlantic pumped in hot and humid conditions on the 29th. Max temperatures were in the 90s along with dewpoints in the upper 60s and lower 70s.
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 Jun 28, 1:51 PM EST, 23 hours 9 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 heat. Local standard time, as filed.
A local newspaper reported a fatality of a senior citizen due to hyperthermia on June 29th.
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, Prince Georges | 2010-06-29 | Female | Unknown | 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, June 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 2026-09-30. Each event’s entry at NCEI: 244145.