Alert archive / New Jersey / Flash Flood Warnings in 1997
Flash Flood Warning 15, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 21, 1997, 2:12 AM EDT for Atlantic County, Cumberland County, New Jersey. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1997, 2:12 AM EDT (06:12 UTC)
- Expired
- Aug 21, 1997, 5:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Atlantic County, NJ, Cumberland County, NJ
The radar
The Philadelphia radar (KDIX), 73 km from the middle of the area, began a volume at 06:13 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 6.2 hours before the alert went out and 169 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 965 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 503 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 253 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 210608 FFWPHL NJC001-011-029-210900- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ 212 AM EDT THU AUG 21 1997 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE FLOOD WARNING UNTIL 500 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NEW JERSEY ...SOUTHERN OCEAN COUNTY ...CUMBERLAND COUNTY ...ATLANTIC COUNTY THUNDERSTORMS WITH TORRENTIAL DOWNPOURS DUMPED 10.36 INCHES OF RAIN BETWEEN 11 PM AND 2 AM AT THE ATLANTIC CITY INTERNATIONAL AIRPORT IN EGG HARBOR TOWNSHIP. NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATES INDICATED THAT A BAND OF SIX INCHES OR MORE OF RAIN HAS FALLEN FROM NORTHEAST CUMBERLAND COUNTY THROUGH SOUTHERN OCEAN COUNTY INCLUDING MUCH OF INLAND ATLANTIC COUNTY. WHILE THE TORRENTIAL RAIN IS OVER...ANOTHER BAND OF HEAVY RAIN MOVING FROM KENT COUNTY DELAWARE COULD DROP AN ADDITIONAL ONE TO TWO INCHES OF RAIN BETWEEN 2 AM AND 5 AM OVER EXTREME SOUTHERN OCEAN COUNTY... EASTERN ATLANTIC COUNTY AND EASTERN CUMBERLAND COUNTY. GALLOWAY AND EGG HARBOR TOWSHIP HAVE BEEN HARD HIT WITH SEVERE FLOODING IN ATLANTIC COUNTY. IF YOU ARE IN AN AREA PRONE TO FLOODING...MOVE TO HIGHER GROUND IMMEDIATELY...BEFORE YOUR ACCESS IS CUT OFF BY RISING FLOOD WATERS. FOLLOW THE DIRECTION OF POLICE AND EMERGENCY MANAGEMENT PERSONNEL IN YOUR AREA. NEVER DRIVE ON BARRICADED ROADS. DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE WATER MAY BE DEEPER THAN YOU THINK. RAPIDLY RISING WATERS CAN QUICKLY ENGULF YOUR VEHICLE AND ITS OCCUPANTS. IF YOUR VEHICLE STALLS...ABANDON IT AND SEEK HIGHER GROUND QUICKLY. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION OUTLET. TFG &
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 11:34 PM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Ocean | 3 hr |
| Aug 20, 11:34 PM EDT | Flash Flood Warning | PHI | Cumberland | 3 hr |
| Aug 21, 2:12 AM EDT | Flash Flood Warning | PHI | Ocean | 3 hr |
| Aug 21, 5:00 AM EDT | Flash Flood Warning | PHI | Atlantic, Ocean | 3 hr |
| Aug 21, 5:00 AM EDT | Flash Flood Warning | PHI | Cumberland | 3 hr |
| Aug 21, 8:00 AM EDT | Flash Flood Warning | PHI | Atlantic, Cumberland, Ocean | 3 hr |
Nearby
Flash Flood Warnings in New Jersey, 1997Every flash flood warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.