Alert archive / Pennsylvania / Flash Flood Warnings in 2001
Flash Flood Warning 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 16, 2001, 7:12 PM EDT for Philadelphia 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 16, 2001, 7:12 PM EDT (23:12 UTC)
- Expired
- Jun 16, 2001, 9:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 62 km from the middle of the area, began a volume at 23:13 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
Brookhaven, NY (KOKX), launched 12:00Z, 11.2 hours before the alert went out and 214 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
- 50 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KPHI 162313
FFWPHI
PAC101-170115-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
712 PM EDT SAT JUN 16 2001
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA
* UNTIL 915 PM EDT.
* AT 707 PM EDT...WEATHER SERVICE RADAR HAS ESTIMATED OVER 3 INCHES
OF RAIN IN PARTS OF NORTH AND NORTHEAST PHILADELPHIA COUNTY.
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PASS THROUGH
THE AREA OVER THE NEXT HOUR.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE
YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER
DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES
CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER
GROUND.
FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE
TELEVISION OUTLET.
$$
LAT...LON 4013 7502 4010 7497 4004 7500 3997 7513
4006 7525 4009 7522 4007 7519 4008 7518
4004 7512wThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 2:28 PM EDT | Flash Flood Warning | PHI | Montgomery | 2 hr |
| Jun 16, 4:30 PM EDT | Flash Flood Warning | PHI | Montgomery | 90 min |
| Jun 16, 5:31 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jun 16, 6:30 PM EDT | Flash Flood Warning | PHI | Montgomery | 2 hr |
| Jun 16, 6:40 PM EDT | Flash Flood Warning | PHI | Delaware | 2 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2001Every flash flood warning in 2001
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.