Alert archive / New Jersey / Flash Flood Warnings in 2011
Flash Flood Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 15, 2011, 3:10 PM EDT for Morris County, 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
- Aug 15, 2011, 3:10 PM EDT (19:10 UTC)
- Expired
- Aug 15, 2011, 5:50 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
The radar
The Philadelphia radar (KDIX), 109 km from the middle of the area, began a volume at 19:12 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, 7.2 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
- 94 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 619 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
655
WGUS51 KPHI 151910
FFWPHI
NJC027-037-152200-
/O.NEW.KPHI.FF.W.0032.110815T1910Z-110815T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 PM EDT MON AUG 15 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SUSSEX COUNTY...
MORRIS COUNTY...
* UNTIL 600 PM EDT...
* AT 310 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM THUNDERSTORMS OVER MORRIS AND SUSSEX COUNTIES
IN NORTHWESTERN NEW JERSEY. UP TO ONE INCH PER HOUR HAS BEEN
REPORTED. GIVEN THE ALREADY WET CONDITIONS FROM RAIN ON SATURDAY AND
SUNDAY...FLASH FLOODING CAN BE EXPECTED WHEREVER THE HEAVIEST RAIN
HAPPENS TO FALL.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MORRISTOWN
AND NEWTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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. MANY FLOODING DEATHS OCCUR IN CARS!
PLEASE REPORT FLOODING...HAIL OR WIND DAMAGE TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1-877-633-6772.
&&
LAT...LON 4120 7437 4109 7449 4104 7449 4105 7444
4101 7439 4099 7429 4089 7426 4089 7433
4086 7431 4073 7437 4064 7452 4070 7451
4074 7456 4071 7474 4073 7483 4078 7489
4083 7482 4091 7477 4109 7499 4135 7469
$$
FORECASTER:JJM1 follow-up statement
316
WGUS71 KPHI 152150
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
550 PM EDT MON AUG 15 2011
NJC027-037-152158-
/O.CAN.KPHI.FF.W.0032.000000T0000Z-110815T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-MORRIS NJ-
550 PM EDT MON AUG 15 2011
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR MORRIS AND SUSSEX
COUNTIES...
THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND FLOOD WATERS
NO LONGER POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH
FLOOD WARNING HAS BEEN CANCELLED.
HOWEVER...AN AREAL FLOOD WARNING REMAINS IN EFFECT FOR MORRIS COUNTY
THAT INCLUDES BEAVER DAM DITCH IN NORTHEAST MORRIS COUNTY. THAT IS A
SLOWER RESPONDING STREAM AND SO IS NOT CONSIDERED A FLASH FLOOD EVENT.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MORRISTOWN
AND NEWTON.
LAT...LON 4120 7437 4109 7449 4104 7449 4105 7444
4101 7439 4099 7429 4089 7426 4089 7433
4086 7431 4073 7437 4064 7452 4070 7451
4074 7456 4071 7474 4073 7483 4078 7489
4083 7482 4091 7477 4109 7499 4135 7469
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 11:03 PM EDT | Areal Flood Warning | PHI | Monmouth, Ocean | 8 hr |
| Aug 15, 12:03 AM EDT | River Flood Warning | PHI | Somerset | 33 hr |
| Aug 15, 5:31 AM EDT | Areal Flood Warning | PHI | Cumberland, Gloucester, Salem | 4 hr |
| Aug 15, 5:34 AM EDT | Areal Flood Warning | PHI | Somerset | 3 hr |
| Aug 15, 9:24 AM EDT | Areal Flood Warning | PHI | Cumberland, Salem | 12 hr |
| Aug 15, 1:56 PM EDT | Special Weather Statement | PHI | Hunterdon, Warren | 94 min |
| Aug 15, 2:35 PM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 3 hr |
| Aug 15, 2:56 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Cumberland, Gloucester, Mercer, Middlesex and 4 more | 109 min |
| Aug 15, 3:48 PM EDT | Special Marine Warning | PHI | 87 min | |
| Aug 15, 4:15 PM EDT | Special Weather Statement | PHI | Cape May | 60 min |
| Aug 15, 4:33 PM EDT | Special Marine Warning | PHI | 57 min | |
| Aug 15, 5:08 PM EDT | Areal Flood Warning | PHI | Atlantic | 4 hr |
| Aug 15, 5:25 PM EDT | Special Marine Warning | PHI | 110 min | |
| Aug 15, 5:46 PM EDT | Areal Flood Warning | PHI | Morris | 15 hr |
Nearby
Flash Flood Warnings in New Jersey, 2011Every flash 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.