Alert archive / New Jersey / Flash Flood Warnings in 2017
Flash Flood Warning 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 24, 2017, 7:26 AM EDT for Middlesex County, Somerset County, New Jersey. It was in force for 4 hr. 2 reports 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 24, 2017, 7:26 AM EDT (11:26 UTC)
- Expired
- Jun 24, 2017, 11:30 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Middlesex County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 11:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 24, 8:08 AM EDT | FLOOD | 1 E Possumtown, NJ | ROADWAY FLOODING ON INTERSTATE 287 NEAR POSSUMTOWN ROAD. |
| Jun 24, 8:30 AM EDT | FLOOD | 1 Ssw Heathcote, NJ | FLOODING ON US HIGHWAY 1 SOUTHBOUND AT RAYMOND ROAD. JUGHANDLE BLOCKED. |
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, 11.4 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
- 488 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
001
WGUS51 KPHI 241126
FFWPHI
NJC023-035-241530-
/O.NEW.KPHI.FF.W.0006.170624T1126Z-170624T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
726 AM EDT SAT JUN 24 2017
The National Weather Service in Mount Holly NJ has issued a
* Flash Flood Warning for...
Central Somerset County in northern New Jersey...
Middlesex County in northern New Jersey...
* Until 1130 AM EDT
* At 725 AM EDT...Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Up to
three inches of rain have already fallen. Flash flooding is
expected to begin shortly.
* Some locations that will experience flooding include...
New Brunswick, Perth Amboy, Somerville, Somerset, Edison, Old
Bridge, East Brunswick, South Brunswick, Sayreville, North
Brunswick, Carteret, Middlesex, Bound Brook, Manville, Matawan,
Jamesburg, Cranbury, Millstone, Brownville and Martinsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
4045 7423 4040 7425 4027 7441 4025 7446
4034 7463 4045 7458 4049 7470 4062 7460
4062 7444 4060 7446 4061 7431 4059 7429
4059 7420
$$
CMS3 follow-up statements
700
WGUS71 KPHI 241233
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
833 AM EDT SAT JUN 24 2017
NJC023-035-241530-
/O.CON.KPHI.FF.W.0006.000000T0000Z-170624T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Somerset NJ-Middlesex NJ-
833 AM EDT SAT JUN 24 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR
CENTRAL SOMERSET AND MIDDLESEX COUNTIES...
At 831 AM EDT...Doppler radar and automated rain gauges indicated
that one to three inches of rain has fallen in much of the warned
area. Several reports of street flooding have been received,
especially in the South Brunswick area. Flash flooding is expected
to begin shortly.
Some locations that will experience flooding include...
New Brunswick, Perth Amboy, Somerville, Somerset, Edison, Old Bridge,
East Brunswick, South Brunswick, Sayreville, North Brunswick,
Carteret, Middlesex, Bound Brook, Manville, Matawan, Jamesburg,
Cranbury, Millstone, Brownville and Martinsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
4045 7423 4040 7425 4027 7441 4025 7446
4034 7463 4045 7458 4049 7470 4062 7460
4062 7444 4060 7446 4061 7431 4059 7429
4059 7420
$$
CMS455
WGUS71 KPHI 241236 CCA
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
836 AM EDT SAT JUN 24 2017
NJC023-035-241530-
/O.CON.KPHI.FF.W.0006.000000T0000Z-170624T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Somerset NJ-Middlesex NJ-
836 AM EDT SAT JUN 24 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT FOR
CENTRAL SOMERSET AND MIDDLESEX COUNTIES...
At 836 AM EDT...Doppler radar and automated rain gauges indicated
that one to three inches of rain has fallen in much of the warned
area. Several reports of street flooding have been received,
especially in the South Brunswick area. Flash flooding is expected
to begin shortly.
Some locations that will experience flooding include...
New Brunswick, Perth Amboy, Somerville, Somerset, Edison, Old Bridge,
East Brunswick, South Brunswick, Sayreville, North Brunswick,
Carteret, Middlesex, Bound Brook, Manville, Matawan, Jamesburg,
Cranbury, Millstone, Brownville and Martinsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
4045 7423 4040 7425 4027 7441 4025 7446
4034 7463 4045 7458 4049 7470 4062 7460
4062 7444 4060 7446 4061 7431 4059 7429
4059 7420
$$
CMS248
WGUS71 KPHI 241520
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1120 AM EDT SAT JUN 24 2017
NJC023-035-241530-
/O.EXP.KPHI.FF.W.0006.000000T0000Z-170624T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Somerset NJ-Middlesex NJ-
1120 AM EDT SAT JUN 24 2017
...THE FLASH FLOOD WARNING FOR CENTRAL SOMERSET AND MIDDLESEX
COUNTIES WILL EXPIRE AT 1130 AM EDT...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.
LAT...LON 4056 7421 4055 7425 4050 7426 4050 7428
4045 7423 4040 7425 4027 7441 4025 7446
4034 7463 4045 7458 4049 7470 4062 7460
4062 7444 4060 7446 4061 7431 4059 7429
4059 7420
$$
CMSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:54 PM EDT | Areal Flood Advisory | PHI | Morris, Warren | 3 hr |
| Jun 24, 3:25 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset, Warren | 4 hr |
| Jun 24, 6:17 AM EDT | Special Marine Warning | PHI | 28 min | |
| Jun 24, 6:20 AM EDT | Special Weather Statement | PHI | Cumberland, Gloucester, Salem | 55 min |
| Jun 24, 6:26 AM EDT | Tornado Warning | PHI | Burlington, Camden, Gloucester | 34 min |
| Jun 24, 6:39 AM EDT | Tornado Warning | PHI | Mercer, Middlesex, Monmouth | 36 min |
| Jun 24, 6:42 AM EDT | Special Marine Warning | PHI | 63 min | |
| Jun 24, 6:49 AM EDT | Special Weather Statement | PHI | Monmouth, Ocean | 41 min |
| Jun 24, 6:58 AM EDT | Special Weather Statement | PHI | Burlington, Monmouth | 32 min |
| Jun 24, 7:00 AM EDT | Special Weather Statement | PHI | Cape May | 30 min |
| Jun 24, 7:02 AM EDT | Special Marine Warning | PHI | 58 min | |
| Jun 24, 7:09 AM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 4 hr |
| Jun 24, 7:19 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 56 min |
| Jun 24, 7:20 AM EDT | Special Marine Warning | PHI | 55 min | |
| Jun 24, 7:21 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Mercer, Somerset | 4 hr |
| Jun 24, 7:39 AM EDT | Special Marine Warning | PHI | 66 min | |
| Jun 24, 7:54 AM EDT | Special Marine Warning | PHI | 66 min | |
| Jun 24, 8:11 AM EDT | Special Marine Warning | PHI | 64 min | |
| Jun 24, 8:16 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Monmouth, Ocean | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 2017Every flash flood warning in 2017
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.