Flash Flood, Chester
- When
- June 18, 10:30 PM EST to June 19, 2:00 AM EST
- Where
- Chester County, North Portion
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.973, -75.748 (the zone’s center; the record gives no point)
Flash Flood in Pennsylvania, June 18 to 19, 2000
A series of thunderstorms with very heavy rain caused flooding along some of the streams and creeks across the northern half of Chester County during the late evening of the 18th and the early morning of the 19th. m.
Where it happened
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.
- 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 series of thunderstorms with very heavy rain caused flooding along some of the streams and creeks across the northern half of Chester County during the late evening of the 18th and the early morning of the 19th. The East Branch of the Brandywine Creek at Downingtown crested at 7.9 feet at 130 a.m. EDT on the 19th. It was above flood stage from just after midnight on the 19th through 3 a.m. EDT on the 19th. Doppler radar storm total estimates reached close to three inches in the headwaters of the Brandywine Creek. Actual storm totals included 2.28 inches in Crum Creek (Delaware County), 1.47 inches in Honey Brook (Chester County), 1.10 inches in Valley Forge (Chester County) and 1.05 inches in West Chester (Chester County).
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Damaging Wind in New Jersey, June 18, 2000
- Hail and Damaging Winds in Virginia, June 18, 2000
- Hail and Damaging Wind in Pennsylvania, June 18, 2000
- Flash Flooding in Texas, June 18, 2000
- Lightning Strike in Guam, June 18, 2000
- Hail and Damaging Wind in Georgia, June 18, 2000
- Damaging Winds in South Carolina, June 18 to 20, 2000
- Damaging Wind in Florida, June 18, 2000
- Hail and Damaging Wind in Maryland, June 18, 2000
- Flash Flooding in Illinois, June 18, 2000
- Hail and Damaging Winds in Mississippi, June 18, 2000
- Flash Flooding in Indiana, June 18, 2000
More
Every storm in Pennsylvania in 2000Every state in 2000This day in weather historyWarnings in Pennsylvania, June 2000
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: 5153783.