Alert archive / New Jersey / Flash Flood Warnings in 2012
Flash Flood Warning 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 23, 2012, 2:47 PM EDT for Morris County, Sussex County, Warren 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
- Jul 23, 2012, 2:47 PM EDT (18:47 UTC)
- Expired
- Jul 23, 2012, 5:26 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 18:48 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, 6.8 hours before the alert went out and 155 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
- 253 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
952 WGUS51 KPHI 231847 FFWPHI NJC027-037-041-232245- /O.NEW.KPHI.FF.W.0020.120723T1847Z-120723T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 247 PM EDT MON JUL 23 2012 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * FLASH FLOOD WARNING FOR... EAST CENTRAL WARREN COUNTY... CENTRAL MORRIS COUNTY... SOUTHWESTERN SUSSEX COUNTY... * UNTIL 645 PM EDT... * AT 243 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER CENTRAL MORRIS...EAST CENTRAL WARREN AND SOUTHWESTERN SUSSEX COUNTIES. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON. RADAR ESTIMATED TWO INCHES OF RAIN HAVE FALLEN IN PORTIONS OF THE WARNED AREA AND ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE REPORT FLOODING...HAIL OR WIND DAMAGE TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772. && LAT...LON 4108 7479 4089 7435 4074 7463 4098 7499 $$ NIERENBERG
1 follow-up statement
030 WGUS71 KPHI 232126 FFSPHI FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 526 PM EDT MON JUL 23 2012 NJC027-037-041-232132- /O.CAN.KPHI.FF.W.0020.000000T0000Z-120723T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WARREN NJ-MORRIS NJ-SUSSEX NJ- 526 PM EDT MON JUL 23 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHWESTERN SUSSEX...CENTRAL MORRIS AND EAST CENTRAL WARREN COUNTIES... THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND FLOOD WATERS NO LONGER POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON. LAT...LON 4108 7479 4089 7435 4074 7463 4098 7499 $$ FORECASTER:
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 11:26 AM EDT | Special Weather Statement | PHI | Sussex | 94 min |
| Jul 23, 12:19 PM EDT | Special Weather Statement | PHI | Sussex | 56 min |
| Jul 23, 12:32 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 73 min |
| Jul 23, 1:00 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 60 min |
| Jul 23, 1:11 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
| Jul 23, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 78 min |
| Jul 23, 2:24 PM EDT | Special Weather Statement | PHI | Warren | 66 min |
| Jul 23, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Warren | 76 min |
| Jul 23, 3:42 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 78 min |
| Jul 23, 4:56 PM EDT | Special Weather Statement | PHI | Middlesex, Monmouth, Somerset | 94 min |
| Jul 23, 5:56 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Hunterdon, Mercer | 64 min |
| Jul 23, 6:35 PM EDT | Special Weather Statement | PHI | Morris, Sussex | 85 min |
| Jul 23, 6:51 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 69 min |
| Jul 23, 7:39 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 2 hr |
| Jul 23, 7:56 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 59 min |
Nearby
Flash Flood Warnings in New Jersey, 2012Every flash flood warning in 2012
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.