Alert archive / New Jersey / Flash Flood Warnings in 2015
Flash Flood Warning 45, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 19, 2015, 4:26 PM EDT for Somerset 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
- Aug 19, 2015, 4:26 PM EDT (20:26 UTC)
- Expired
- Aug 19, 2015, 7:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 20:27 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, 8.4 hours before the alert went out and 134 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
- 605 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
904
WGUS51 KPHI 192026
FFWPHI
NJC035-192330-
/O.NEW.KPHI.FF.W.0045.150819T2026Z-150819T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
426 PM EDT WED AUG 19 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL SOMERSET COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 730 PM EDT
* AT 425 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A THUNDERSTORM
PRODUCING FLASH FLOODING IN WATCHUNG. UP TO THREE INCHES OF RAIN
HAVE ALREADY FALLEN.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NORTH PLAINFIELD AND WATCHUNG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4064 7442 4061 7444 4065 7445 4066 7442
4066 7441
$$
JRK2 follow-up statements
854
WGUS71 KPHI 192100
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
500 PM EDT WED AUG 19 2015
NJC035-192330-
/O.CON.KPHI.FF.W.0045.000000T0000Z-150819T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SOMERSET NJ-
500 PM EDT WED AUG 19 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
EAST CENTRAL SOMERSET COUNTY...
AT 456 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING ON
ROUTE 22 IN WATCHUNG...WHERE CARS WERE STUCK IN TWO TO THREE FEET OF
WATER. FLASH FLOODING IS ALREADY OCCURRING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NORTH PLAINFIELD AND WATCHUNG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4064 7442 4061 7444 4065 7445 4066 7442
4066 7441
$$
JRK588
WGUS71 KPHI 192238
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
638 PM EDT WED AUG 19 2015
NJC035-192233-
/O.CAN.KPHI.FF.W.0045.000000T0000Z-150819T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SOMERSET NJ-
638 PM EDT WED AUG 19 2015
...THE FLASH FLOOD WARNING FOR EAST CENTRAL SOMERSET COUNTY IS
CANCELLED...
THE HEAVY RAIN HAS ENDED....AND FLASH FLOODING IS NO LONGER EXPECTED
TO POSE A THREAT TO LIFE OR PROPERTY. ROUTE 22 IN WATCHUNG REMAINS
CLOSED DUE TO HIGH STANDING WATER. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES.
LAT...LON 4064 7442 4061 7444 4065 7445 4066 7442
4066 7441
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 12:41 PM EDT | Special Weather Statement | PHI | Monmouth | 64 min |
| Aug 19, 1:05 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 115 min |
| Aug 19, 3:00 PM EDT | Special Weather Statement | PHI | Burlington | 45 min |
| Aug 19, 3:08 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 112 min |
| Aug 19, 3:10 PM EDT | Special Weather Statement | PHI | Burlington | 35 min |
| Aug 19, 5:57 PM EDT | Special Weather Statement | PHI | Warren | 63 min |
Nearby
Flash Flood Warnings in New Jersey, 2015Every flash flood warning in 2015
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.