Alert archive / Pennsylvania / Flash Flood Warnings in 2002
Flash Flood Warning 50, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 19, 2002, 3:47 AM EDT for Berks County, Pennsylvania. 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
- Jun 19, 2002, 3:47 AM EDT (07:47 UTC)
- Expired
- Jun 19, 2002, 7:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 139 km from the middle of the area, began a volume at 07:47 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 7.8 hours before the alert went out and 206 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
- 1178 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1235 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KPHI 190751 FFWPHI PAC011-191100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 347 AM EDT WED JUN 19 2002 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE * FLASH FLOOD WARNING FOR... NORTHERN BERKS COUNTY IN EASTERN PENNSYLVANIA * UNTIL 700 AM EDT. * AT 341 AM EDT...WEATHER SERVICE RADAR INDICATED SOME RESIDUAL THUNDERSTORMS OVER THE FAR NORTHERN PART OF THE COUNTY. THE HEAVIEST RAINS WERE OVER AND FELL AROUND THE HAMBURG AREA AND BETWEEN LYONS...KUTZTOWN AND TOPTON IN THE EASTERN PART OF THE COUNTY. DOPPLER STORM TOTAL ESTIMATES EXCEEDED FOUR INCHES IN THOSE AREAS...MOST OF WHICH FELL BETWEEN 1 AM AND 3 AM. WHILE THE WORST APPEARS OVER...SOME OF THE HEAVY RAIN WILL STILL HAVE TO DRAIN THROUGH SWOLLEN AND OR FLOODING SMALL STREAMS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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 4067 7589 4044 7557 4042 7626 4050 7631 TFG
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 1:51 AM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 19, 2:06 AM EDT | Flash Flood Warning | PHI | Lehigh | 3 hr |
| Jun 19, 2:42 AM EDT | Flash Flood Warning | PHI | Bucks | 2 hr |
| Jun 19, 2:14 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 2 hr |
| Jun 19, 6:51 PM EDT | Flash Flood Warning | PHI | Chester | 114 min |
Nearby
Flash Flood Warnings in Pennsylvania, 2002Every flash flood warning in 2002
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.