Flash Flood, Cumberland
- When
- August 14, 5:30 PM EST to 7:00 PM EST
- Where
- Cumberland County, Northeast Portion
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.328, -75.129 (the zone’s center; the record gives no point)
Flash Flood in New Jersey, August 14, 2001
In addition to the initial shot of severe weather, the thunderstorms showed little or no movement across northeast Cumberland County and caused flooding of some of the smaller streams in the area as well as poor drainage flooding in Vineland. Doppler radar storm total estimates were between 4 and 5 inches.
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.
In addition to the initial shot of severe weather, the thunderstorms showed little or no movement across northeast Cumberland County and caused flooding of some of the smaller streams in the area as well as poor drainage flooding in Vineland. Doppler radar storm total estimates were between 4 and 5 inches.
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 14, 3:05 PM EST, 2 hours 25 minutes earlier.
Area forecast discussion, Aug 14, 3:05 PM EST, 2 hours 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 405 PM EDT TUE AUG 14 2001 A FEW SHOWERS HAVE DEVELOPED THIS AFTERNOON IN THE POCONOS...AND OVER NERN MD. WITH A SHORT WAVE PROGGED BY BOTH THE AVN/ETA TO MOVE THROUGH AROUND 00Z THIS EVENING ACROSS THE NRN ZONES ALONG THE TROUGH AXIS...AND WITH INSTABILITY AND ENOUGH MOISTURE IN PLACE ACROSS THE CWA...CANNOT RULE OUT AN ISOLATED SHOWER THROUGH THE FIRST PART OF THE EVENING ANYWHERE. HOWEVER...IT DOES NOT APPEAR THAT IT WILL BE WIDESPREAD ENOUGH TO BE MENTIONED IN THE ZONES..EXCEPT FOR THE DELMARVA WHERE THE AREA OF SHOWERS SEEMS TO BE EXPANDING. ONCE THE AXIS OF THE TROUGH MOVES EAST...THE SFC HIGH OVER THE GREAT LAKES WILL BEGIN TO BUILD IN...ALLOWING SKIES TO CLEAR RATHER QUICKLY TONIGHT. HOWEVER...PATCHY FOG MAY DEVELOP AS IT DID THE PAST FEW MORNINGS SINCE WE STILL HAVE ENOUGH MOISTURE IN PLACE. ON WEDNESDAY...IT APPEARS THAT CU WILL DEVELOP ACROSS THE CWA WITH CONVECTIVE TEMPS IN THE LOW 80S. THE H85 RH FIELD ON THE AVN INDICATES THAT MOISTURE WILL REMAIN ACROSS PART OF CNTRL PA AND EXTEND INTO THE POCONOS AS IT DID TODAY. WITH A CAP DEVELOPING JUST ABOVE H70 HELPING TO KEEP THE MOISTURE TRAPPED...WILL GO A LITTLE MORE PESSIMISTIC WITH CLOUD COVER THERE. H85 TEMPS ARE ABOUT 1-2 DEGREES COOLER THAN TODAY WITH MODEL SOUNDINGS SHOWING FULL SUN TEMPS NEAR 87 FOR PHL. WITH LOSS OF DIRUNAL EFFECTS...SKIES TO CLEAR OUT ONCE AGAIN WED NIGHT. HIGH PRESSURE ALSO BECOMES CENTERED NEAR CWA...RESULTING IN LIGHT WINDS. RADIATIONAL COOLING SEEMS A GOOD BET SO WENT WITH LOWER END OF GUIDANCE. ON THURSDAY...WAA KICKS IN BY AFTERNOON AND H850 TEMPS RISE BACK TO WHAT THEY WERE ABOUT TODAY. DEW POINTS WILL ALSO BE ON THE RISE. ON THE MARINE...SMALL CRAFT ADVISORY MAY BE NEEDED ON WED WILL BE HEADLINED ALONG THE COAST. .PHI... DE...NONE. MD...NONE. NJ...NONE. PA...NONE. MARINE...NONE. JAQ
In the hours before
Special weather statement, Aug 14, 3:13 PM EST, 2 hours 17 minutes before
DEZ001-002-MDZ012-015-020-150415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 413 PM EDT TUE AUG 14 2001 ...SMALL HAIL AND GUSTY WINDS... A CLUSTER OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH ACROSS THE EASTERN SHORE AND NORTHERN DELAWARE. WITHIN THE PAST HALF HOUR THESE STORMS PRODUCED PEA SIZED HAIL AND WINDS BETWEEN 40 TO 50 MPH. THE STORMS WILL CONTINUE TO MOVE SOUTHEAST AND MAY STRENGTHEN EVEN MORE OVER THE NEXT HOUR. EBERWINE
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
- Heat in Texas, August 14, 2001
- Tornado and Flash Flooding in North Dakota, August 14, 2001
- Lightning Strike in Texas, August 14, 2001
- Flash Flood in Colorado, August 14, 2001
- Flash Flood in Utah, August 14, 2001
- Damaging Wind in Arizona, August 14, 2001
- Flash Flood and Hail in Minnesota, August 14, 2001
- Wildfire in California, August 14 to 15, 2001
- Lightning Strike in Florida, August 14, 2001
- Damaging Winds in Kansas, August 14, 2001
- Flooding in New York, August 14, 2001
- Flooding and Damaging Wind in New Jersey, August 14, 2001
More
Every storm in New Jersey in 2001Every state in 2001This day in weather historyWarnings in New Jersey, August 2001
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: 5268787.