Heat, Jefferson
- When
- July 2, 10:00 AM EST to July 4, 8:00 PM EST
- Where
- Jefferson forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.308, -77.863 (the zone’s center; the record gives no point)
High pressure remained stationary off the Delmarva coastline during the 1st week of July. This resulted in a prolonged period of hot and humid weather across the Mid Atlantic region.
Every event with a place to put it; 5 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.
High pressure remained stationary off the Delmarva coastline during the 1st week of July. This resulted in a prolonged period of hot and humid weather across the Mid Atlantic region. Between July 2nd and 4th, high temperatures rose into the lower to middle 90s and dew points reached into the lower 70s. This resulted in heat index values reaching 100 to 110 degrees during the afternoon.
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 2, 9:30 AM EST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 1030 AM EDT TUE JUL 2 2002 CURRENT FCST IN GOOD SHAPE...AND PLAN ON MAKING FEW CHGS ATTM. 12Z MODIFIED IAD SOUNDING VERY UNSTABLE TDY WITH AROUND 3KJ/KG CAPE AND NEGLIGIBLE CINH. SUBTLE WK SW TROFS MOVING THROUGH THE AREA...ONE CURRENTLY...AND A WEAKER ONE LATE AFTN. ALMOST NO SFC CONVERGENCE WITH RIDGE AXIS OVERHEAD. PWATS KEEP CLIMBING AND WITH VERY SMALL STORM MOTION VECTORS...WOULD XPCT HVY RAFL TO BE A CONCERN. HOWEVER...DUE TO THE LACK OF ANY SIG FORCING TO GET THE PARCELS RISING...WOULD XPCT ONLY WDLY SCT COVERAGE AT BEST OVER THE HIGER TERRAIN. GIVEN STEERING FLOW...THE STORMS WOULD BE MOVING SLOWLY TO THE SW...SO ANYWHERE EAST OF THE BLUE RIDGE XPCTD TO BE DRY TODAY. AND THE HEAT ROLLS ON...CURRENT HEAT ADV LOOKS GOOD ATTM...FCST MAXES TODAY COMBINED WITH STEADILY CLIMBING TDS SUPPORT HEAT INDICES AROUND 100F TODAY. MINS TNGT WON/T OFFER ANY RELIEF WITH TEMPS ONLY FALLING BACK TO THE MID 70S IN THE METRO AREAS. QUIET ON THE WATERS TODAY. OTRW...NO OTHER CHANGES...UPDATED ZFP/RDF OUT SHORTLY. MANNING .LWX... DC...HEAT ADVISORY THRU WEDNESDAY FOR ZONE DCZ001. MD...HEAT ADVISORY THRU WEDNESDAY FOR ZONES MDZ002>007... MDZ009>011...MDZ013>014...MDZ016>018. VA...HEAT ADVISORY THRU WEDNESDAY FOR ZONES VAZ025>031... VAZ036>042...VAZ050>057. WV...HEAT ADVISORY THRU WEDNESDAY FOR ZONES WVZ048>053...WVZ055.
The national radar mosaic for the moment the first event began.
7 heat. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2002Every state in 2002This day in weather historyWarnings in West Virginia, July 2002
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 2026-09-24. Each event’s entry at NCEI: 5308574, 5308575, 5308576, 5308577, 5308578, 5308579, 5308580.