Alert archive / Pennsylvania / Flash Flood Warnings in 1996
Flash Flood Warning 31, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 12, 1996, 6:28 PM EDT for Bucks County, Montgomery County, Pennsylvania. It was in force for 2 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
- Jun 12, 1996, 6:28 PM EDT (22:28 UTC)
- Expired
- Jun 12, 1996, 8:30 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Bucks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 79 km from the middle of the area, began a volume at 22:32 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.5 hours before the alert went out and 116 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
- 801 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 122225 FFWPHL PAC017-091-130030- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ 628 PM EDT WED JUN 12 1996 THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 830 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN PENNSYLVANIA ...SOUTHERN BUCKS COUNTY...SOUTHERN MONTGOMERY COUNTY AT 620 PM NATIONAL WEATHER SERVICE DOPPLER RADAR IN MOUNT HOLLY NJ INDICATED THUNDERSTORMS WITH HEAVY RAIN PERSISTING IN SOUTHERN MONTGOMERY AND SOUTHERN BUCKS COUNTIES. RADAR ESTIMATES UP TO TWO INCHES OF RAIN HAS FALLEN IN THESE AREAS DURING THE PAST THREE HOURS. IN ADDITION...NEWSPAPER REPORTERS HAVE WITNESSED EVACUATION OF FLOODED ROADWAYS IN SOUTHERN MONTGOMERY 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. CONTINUE TO MONITOR NOAA WEATHBER RADIO...AND YOUR LOCAL RADIO AND TELEVISION STATIONS FOR THE LATEST INFORMATION ON THE FLOOD WARNING. TFG/JJM
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 2:47 PM EDT | Severe Thunderstorm Warning | PHI | Montgomery | 33 min |
| Jun 12, 3:11 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 49 min |
| Jun 12, 4:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 45 min |
| Jun 12, 5:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 34 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1996Every flash flood warning in 1996
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.