Alert archive / Pennsylvania / Flash Flood Warnings in 2004
Flash Flood Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 25, 2004, 3:17 PM EDT for Hunterdon County, New Jersey; Bucks County, Montgomery County, Pennsylvania; New Castle County, Delaware. It was in force for 85 days. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 25, 2004, 3:17 PM EDT (19:17 UTC)
- Expired
- Sep 18, 2004, 11:00 AM EDT
- In force
- 85 days
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties New Castle County, DE, Hunterdon County, NJ, Bucks County, PA, Montgomery County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.3 hours before the alert went out and 162 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
- 375 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1108 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KPHI 251918 FFWPHI DEC003-252215- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 317 PM EDT FRI JUN 25 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE * UNTIL 615 PM EDT. * AT 313 PM EDT...WEATHER SERVICE RADAR INDICATED A NEARLY STATIONARY THUNDERSTORM IN SOUTHERN NEW CASTLE COUNTY. TWO INCHES OF RAIN HAS FALLEN IN THE PAST HOUR AND MORE HEAVY RAIN IS LIKELY. FLOODING IS LIKELY ALONG DRAWYER AND DEEP CREEKS. IN ADDITION THE HEAVY RAIN MIGHT LOOSEN THE SOIL TO KNOCK DOWN SOME WEAK TREES. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. LAT...LON 3958 7558 3935 7555 3930 7574 3957 7578 $$ TFG
1 follow-up statement
000 WGUS51 KPHI 181109 FFWPHI NJC019-PAC017-091-181500- /X.NEW.KPHI.FF.W.0005.040918T1107Z-040918T1500Z/ /0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 707 AM EDT SAT SEP 18 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA NORTHWESTERN MONTGOMERY COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 1100 AM EDT * AT 702 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM PERSISTENT HEAVY RAIN AND THUNDERSTORMS OVER THE WARNED AREA. RADAR HAS ESTIMATED 3 TO 4 INCHES WITH LOCAL 5 INCH AMOUNTS WITHIN THE PAST 6 TO 8 HOURS. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO QUAKERTOWN...MILFORD...HIGH BRIDGE...FRENCHTOWN AND FLEMINGTON. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 4012 7541 4053 7480 4072 7489 4027 7566 $$ JRP
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 67 min |
| Jun 25, 4:01 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris | 85 days |
| Jun 25, 4:21 PM EDT | Severe Thunderstorm Warning | PHI | Somerset | 54 min |
| Jun 25, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 48 min |
| Jun 25, 5:11 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 85 days |
| Jun 25, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 61 min |
| Jun 25, 7:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 62 min |
| Jun 25, 7:25 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware | 85 days |
| Jun 25, 3:24 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 51 min |
Nearby
Flash Flood Warnings in Pennsylvania, 2004Flash Flood Warnings in New Jersey, 2004Flash Flood Warnings in Delaware, 2004Every flash flood warning in 2004
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.