Alert archive / New Jersey / Flash Flood Warnings in 2004
Flash Flood Warning 84, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 18, 2004, 6:46 AM EDT for Sussex 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 outline as issued.
The facts
- Issued
- Sep 18, 2004, 6:46 AM EDT (10:46 UTC)
- Expired
- Sep 18, 2004, 10:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Sussex County, NJ
The radar
The Philadelphia radar (KDIX), 134 km from the middle of the area, began a volume at 10:49 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 00:00Z, 10.8 hours before the alert went out and 161 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 180 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 181049 FFWPHI NJC037-181400- /X.NEW.KPHI.FF.W.0004.040918T1046Z-040918T1400Z/ /0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 646 AM EDT SAT SEP 18 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLASH FLOOD WARNING FOR... SUSSEX COUNTY IN NORTHWEST NEW JERSEY * UNTIL 1000 AM EDT * AT 645 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM PERSISTENT HEAVY RAIN AND THUNDERSTORMS OVER SUSSEX COUNTY. RADAR HAS ESTIMATED BETWEEN 2 AND 3 INCHES OF RAIN IN THE PAST FEW HOURS THROUGHOUT THE COUNTY...WITH MORE RAIN ON THE WAY. 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 4109 7494 4092 7472 4118 7445 4133 7473 $$ JJM
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 6:09 AM EDT | Flash Flood Warning | PHI | Warren | 4 hr |
| Sep 18, 6:22 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 38 min |
| Sep 18, 7:04 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 86 min |
| Sep 18, 7:07 AM EDT | Flash Flood Warning | PHI | Hunterdon | 4 hr |
| Sep 18, 7:37 AM EDT | Flash Flood Warning | PHI | Morris | 4 hr |
| Sep 18, 9:48 AM EDT | Flash Flood Warning | PHI | Sussex, Warren | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 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; radar from the NEXRAD Level II archive.