Alert archive / New Jersey / Flash Flood Warnings in 2015
Flash Flood Warning 50, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 21, 2015, 3:10 AM EDT for Cape May County, New Jersey. It was in force for 4 hr. 4 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
- Aug 21, 2015, 3:10 AM EDT (07:10 UTC)
- Expired
- Aug 21, 2015, 7:15 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Cape May County, NJ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 21, 3:45 AM EDT | FLASH FLOOD | Wildwood, NJ | NUMEROUS STREETS FLOODED AND IMPASSABLE. |
| Aug 21, 7:00 AM EDT | HEAVY RAIN 1.55 | Nnw Cape May, NJ | |
| Aug 21, 7:00 AM EDT | HEAVY RAIN 2.12 | 3 Wsw Lower Twp, NJ | |
| Aug 21, 7:15 AM EDT | HEAVY RAIN 1.61 | Wsw Wildwood Crest, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.2 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
- 628 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
678
WGUS51 KPHI 210710
FFWPHI
NJC009-211115-
/O.NEW.KPHI.FF.W.0050.150821T0710Z-150821T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
310 AM EDT FRI AUG 21 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 715 AM EDT
* AT 309 AM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
OCEAN CITY...CAPE MAY...NORTH WILDWOOD...WILDWOOD CREST...
WOODBINE...SEA ISLE CITY...AVALON...WEST CAPE MAY...STONE HARBOR...
RIO GRANDE...CAPE MAY COURT HOUSE...SCOTCH BONNET...GOSHEN...
DIAMOND BEACH...ELDORA...GREEN CREEK...SEAVILLE...STRATHMERE...
DENNISVILLE AND NORTH CAPE MAY.
ADDITIONAL RAINFALL AMOUNTS OF AN INCH ARE POSSIBLE IN THE WARNED
AREA OVER THE NEXT 30 TO 60 MINUTES.
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 3896 7496 3897 7494 3897 7496 3901 7496
3914 7489 3919 7492 3923 7492 3924 7489
3923 7463 3912 7471 3910 7470 3903 7479
3899 7479 3894 7486 3893 7497
$$
HEAVENER1 follow-up statement
293
WGUS71 KPHI 210919
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
519 AM EDT FRI AUG 21 2015
NJC009-210929-
/O.CAN.KPHI.FF.W.0050.000000T0000Z-150821T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAPE MAY NJ-
519 AM EDT FRI AUG 21 2015
...THE FLASH FLOOD WARNING FOR CAPE MAY COUNTY IS CANCELLED...
THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.
LAT...LON 3896 7496 3897 7494 3897 7496 3901 7496
3914 7489 3919 7492 3923 7492 3924 7489
3923 7463 3912 7471 3910 7470 3903 7479
3899 7479 3894 7486 3893 7497
$$
HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 11:18 PM EDT | Special Weather Statement | PHI | Hunterdon, Mercer | 57 min |
| Aug 20, 11:35 PM EDT | Areal Flood Advisory | PHI | Burlington, Hunterdon, Mercer, Middlesex, Somerset | 4 hr |
| Aug 21, 12:46 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Somerset | 4 hr |
| Aug 21, 12:51 AM EDT | Special Weather Statement | PHI | Mercer | 39 min |
| Aug 21, 1:02 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 37 min |
| Aug 21, 1:38 AM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland, Gloucester, Salem | 4 hr |
| Aug 21, 2:30 AM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Aug 21, 4:31 AM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Ocean | 4 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.