Alert archive / New Jersey / Flash Flood Warnings in 2013
Flash Flood Warning 18, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 27, 2013, 8:04 PM EDT for Hunterdon County, Mercer County, Somerset County, New Jersey. It was in force for 4 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 27, 2013, 8:04 PM EDT (00:04 UTC)
- Expired
- Jun 28, 2013, 12:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hunterdon County, NJ, Mercer County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 45 km from the middle of the area, began a volume at 00:05 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 27, 9:00 PM EDT | FLASH FLOOD | Branchburg, NJ | CHAMBERS BROOK FLOODED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.1 hours before the alert went out and 160 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
- 349 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 637 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
825
WGUS51 KPHI 280004
FFWPHI
NJC019-021-035-280400-
/O.NEW.KPHI.FF.W.0018.130628T0004Z-130628T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
804 PM EDT THU JUN 27 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN HUNTERDON COUNTY...
MERCER COUNTY...
SOUTHERN SOMERSET COUNTY...
* UNTIL MIDNIGHT EDT...
* AT 758 PM EDT...RAIN GAGE REPORTS OF UP TO 2.5 INCHES IN ONE HOUR
HAVE BEEN REPORTED IN SECTIONS OF MERCER COUNTY...ALONG WITH
ROADWAY FLOODING. DOPPLER RADAR INDICATES AN ADDITIONAL ONE INCH
OF RAIN IS POSSIBLE IN THE NEXT HOUR OR SO. A FLASH FLOOD WARNING
HAS THEREFORE BEEN ISSUED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
NEVER ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN
DEPTH BY FOOT OR IN AN AUTOMOBILE. TURN AROUND DON'T DROWN!
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH 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.
&&
LAT...LON 4049 7447 4041 7459 4036 7463 4032 7462
4028 7449 4025 7448 4019 7457 4019 7461
4016 7460 4015 7462 4018 7471 4015 7472
4021 7477 4032 7492 4058 7482 4055 7452
4050 7447
$$
FORECASTER:JJM1 follow-up statement
343
WGUS71 KPHI 280354
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1154 PM EDT THU JUN 27 2013
NJC019-021-035-280400-
/O.EXP.KPHI.FF.W.0018.000000T0000Z-130628T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-MERCER NJ-SOMERSET NJ-
1154 PM EDT THU JUN 27 2013
...THE FLASH FLOOD WARNING WILL EXPIRE AT MIDNIGHT EDT FOR SOUTHERN
SOMERSET...MERCER AND SOUTHEASTERN HUNTERDON COUNTIES...
THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND NO LONGER
POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH FLOOD
WARNING WILL BE ALLOWED TO EXPIRE.
THERE MAY STILL BE SOME LOCALIZED AREAS OF HIGH WATER IN LOW LYING
AREAS AND SOME ROADWAYS.
LAT...LON 4049 7447 4041 7459 4036 7463 4032 7462
4028 7449 4025 7448 4019 7457 4019 7461
4016 7460 4015 7462 4018 7471 4015 7472
4021 7477 4032 7492 4058 7482 4055 7452
4050 7447
$$
ROBERTSONThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 8:06 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Ocean | 54 min |
| Jun 27, 8:18 PM EDT | Special Weather Statement | PHI | Mercer, Middlesex, Morris, Somerset, Sussex, Warren | 72 min |
| Jun 27, 10:00 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more | 3 hr |
| Jun 27, 10:48 PM EDT | Areal Flood Warning | PHI | Somerset | 4 hr |
| Jun 28, 1:01 AM EDT | Areal Flood Advisory | PHI | Mercer, Somerset | 5 hr |
| Jun 28, 4:23 PM EDT | Special Weather Statement | PHI | Camden, Gloucester | 52 min |
| Jun 28, 4:46 PM EDT | Special Marine Warning | PHI | 44 min | |
| Jun 28, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 65 min |
| Jun 28, 5:49 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 4 hr |
| Jun 28, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 48 min |
| Jun 28, 6:13 PM EDT | Special Weather Statement | PHI | Ocean | 62 min |
Nearby
Flash Flood Warnings in New Jersey, 2013Every flash flood warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.