Alert archive / New Jersey / Areal Flood Warnings in 2011
Areal Flood Warning 93, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Sep 23, 2011, 7:48 PM EDT for Middlesex County, Morris County, Somerset County, New Jersey. It was in force for 5 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 23, 2011, 7:48 PM EDT (23:48 UTC)
- Expired
- Sep 24, 2011, 1:16 AM EDT
- In force
- 5 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Middlesex County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 78 km from the middle of the area, began a volume at 23:50 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, 11.8 hours before the alert went out and 141 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
- 454 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 434 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
633
WGUS41 KPHI 232348
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
748 PM EDT FRI SEP 23 2011
NJC023-027-035-240545-
/O.NEW.KPHI.FA.W.0093.110923T2348Z-110924T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-
748 PM EDT FRI SEP 23 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
MORRIS COUNTY IN NORTHERN NEW JERSEY...
SOMERSET COUNTY IN NORTHERN NEW JERSEY...
MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 145 AM EDT
* AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED
MODERATE TO HEAVY RAIN ACROSS PORTIONS OF THE WARNED AREA. WITH UP
TO ONE AND A HALF INCHES OF RAIN ALREADY FALLING, COMBINED WITH
ANOTHER ONE TO TWO INCHES THIS EVENING, EXCESSIVE RUNOFF WILL CAUSE
FLOODING OF SMALL CREEKS AND STREAMS, HIGHWAYS, STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF 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.
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. MOVE TO HIGHER GROUND.
&&
LAT...LON 4039 7425 4025 7445 4032 7462 4038 7463
4038 7474 4050 7480 4057 7471 4071 7473
4078 7489 4090 7478 4092 7465 4108 7451
4097 7427 4090 7427 4089 7433 4075 7436
4067 7445 4066 7440 4059 7444 4059 7420
$$
KRUZDLO1 follow-up statement
669
WGUS81 KPHI 240516
FLSPHI
FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
116 AM EDT SAT SEP 24 2011
NJC023-027-035-240525-
/O.CAN.KPHI.FA.W.0093.000000T0000Z-110924T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-
116 AM EDT SAT SEP 24 2011
...THE FLOOD WARNING HAS BEEN CANCELLED FOR URBAN AREAS AND SMALL
STREAMS IN MIDDLESEX...SOMERSET AND MORRIS COUNTIES...
LITTLE ADDITIONAL RAIN IS EXPECTED OVERNIGHT, AND THE COUNTY 911
CENTERS REPORT NO FLOODING EARLY THIS MORNING.
LAT...LON 4039 7425 4025 7445 4032 7462 4038 7463
4038 7474 4050 7480 4057 7471 4071 7473
4078 7489 4090 7478 4092 7465 4108 7451
4097 7427 4090 7427 4089 7433 4075 7436
4067 7445 4066 7440 4059 7444 4059 7420
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 10:13 AM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 5 hr |
| Sep 23, 10:52 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 5 more | 5 hr |
| Sep 23, 5:27 PM EDT | Areal Flood Warning | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 12 hr |
| Sep 23, 5:53 PM EDT | Areal Flood Warning | PHI | Warren | 12 hr |
| Sep 23, 6:31 PM EDT | Special Weather Statement | PHI | Salem | 29 min |
| Sep 23, 6:34 PM EDT | Areal Flood Warning | PHI | Hunterdon, Mercer | 4 hr |
| Sep 23, 6:38 PM EDT | Areal Flood Warning | PHI | Sussex | 6 hr |
| Sep 23, 7:30 PM EDT | Areal Flood Warning | PHI | Burlington, Monmouth, Ocean | 2 hr |
Nearby
Areal Flood Warnings in New Jersey, 2011Every areal flood warning in 2011
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.