Thunderstorm Wind, Chester
- When
- August 3, 4:30 PM EST
- Where
- Chester County, Elverson
- Measured
- 52 kt (60 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 40.167, -75.833
Damaging Wind in Pennsylvania, August 3, 2002
A severe thunderstorm knocked down trees in Elverson.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS PHI wrote it up.
A severe thunderstorm knocked down trees in Elverson.
What forecasters said that day
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 Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Aug 3, 2:53 PM EST, 1 hour 37 minutes earlier.
Area forecast discussion, Aug 3, 2:53 PM EST, 1 hour 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 353 PM EDT SAT AUG 3 2002 SHOWER AND THUNDERSTORMS FIRING UP ALONG FRONTAL BOUNDARY WHICH IS WASHING OUT AS IT CREEPS SLOWLY SOUTH. THIS ACTIVITY SHOULD DIE DOWN AFTER SUNSET SO HAVE INCLUDED AN INTO THIS EVENING PERIOD. HIGH PRES OVER THE GREAT LAKES THIS AFTN WILL MOVE EAST OVERNIGHT AND OFF THE COAST SUNDAY. AS A RESULT, SW FLOW RE-ESTABLISHES ITSELF AFTER A BRIEF RESPITE TODAY. CANT RULE OUT A SHOWER OR THUNDERSTORM ANYWHERE IN THE CWA ON SUNDAY, BUT THINK CHANCES ARE SMALL ENOUGH TO LEAVE OUT OF FCST. SUNDAY LOOKS LIKE A RETURN TO THE MUGGY AND HOT CONDITIONS WHICH CONTINUES INTO MONDAY SO EXCESSIVE HEAT WARNING FOR URBANIZED AREAS OF THE PHL METRO AREA HAS BEEN EXTENDED INTO MON. VIGOROUS COLD FRONT APPROACHES FROM THE NORTHWEST ON MON WITH A CHANCE OF SHOWERS AND THUNDERSTORMS MON AFTN IN POCONOS AND EXTREME NW NEW JERSEY. AS FRONT MOVES SOUTH CHANCE OF SHOWERS AND THUNDERSTORMS REST OF CWA MONDAY EVENING AND NIGHT. DYNAMICS AND MOISTURE LEVELS AS INDICATED BY MODEL RUNS SUGGEST A POTENTIAL FOR SEVERE WEATHER MON AFTN AND NIGHT. FRONT MOVES THROUGH ENTIRE CWA BY TUE MORNING AND BY TUE NIGHT COOLER AIR WILL BE WELL ESTABLISHED OVER FORECAST AREA. ON QUIET ON THE MARINE RIGHT NOW BUT SCA MAY BE NEEDED TUE NIGHT INTO WED ON THE COAST AND LOWER BAY AS THE FRONT MOVES THROUGH. FCSTID = 24 MPO 65 89 67 88 / 0 10 10 30 ABE 67 91 69 91 / 0 10 10 30 RDG 67 91 69 91 / 0 10 10 30 PHL 72 94 74 95 / 0 10 10 0 12N 65 91 67 89 / 0 10 10 30 SMQ 69 93 69 91 / 0 10 10 0 TTN 70 93 71 92 / 0 10 10 0 MIV 72 91 71 90 / 0 10 10 0 ACY 75 86 75 84 / 0 10 10 0 ILG 71 93 72 94 / 0 10 10 0 DOV 71 93 73 93 / 0 10 10 0 GED 71 93 73 93 / 0 10 10 0 ESN 71 93 73 93 / 0 10 10 0 .PHI... DE...EXCESSIVE HEAT WARNING THROUGH MONDAY FOR ZONE DEZ001. MD...NONE. NJ...EXCESSIVE HEAT WARNING THROUGH MONDAY FOR ZONES NJZ015...NJZ017>019. PA...EXCESSIVE HEAT WARNING THROUGH MONDAY FOR ZONES PAZ067>071. JJM
The radar
The Philadelphia radar (KDIX), 124 km away, was scanning. The volume nearest the first event began at 21:29 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Winds in Texas, August 3, 2002
- Hail and Damaging Winds in Maryland, August 3, 2002
- Damaging Wind in District of Columbia, August 3, 2002
- Flash Flood and Hail in Virginia, August 3, 2002
- Heat in Illinois, August 3 to 4, 2002
- Lightning Strike in Florida, August 3, 2002
- Heat in Illinois, August 3 to 5, 2002
- Flash Flood in Colorado, August 3, 2002
- Flash Flooding in Minnesota, August 3, 2002
- Tornadoes and Hail in Minnesota, August 3, 2002
- Damaging Winds in South Dakota, August 3, 2002
- Damaging Winds in Florida, August 3, 2002
More
Every storm in Pennsylvania in 2002Every state in 2002This day in weather historyWarnings in Pennsylvania, August 2002
Sources
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: 5318066.