Alert archive / New Jersey / Flash Flood Warnings in 2015

Flash Flood Warning 2, NWS Philadelphia/Mount Holly

May 28, 2015Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at May 28, 2015, 4:52 PM EDT for Ocean 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
May 28, 2015, 4:52 PM EDT (20:52 UTC)
Expired
May 28, 2015, 7:45 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 27 km from the middle of the area, began a volume at 20:54 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, 8.9 hours before the alert went out and 143 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2015-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 178 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2015-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
178 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

565 
WGUS51 KPHI 282052
FFWPHI
NJC029-282345-
/O.NEW.KPHI.FF.W.0002.150528T2052Z-150528T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
452 PM EDT THU MAY 28 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 745 PM EDT
    
* AT 451 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A THUNDERSTORM
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF
  RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY. WATER RESCUSES HAVE BEEN REPORTED. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  TOMS RIVER...BEACHWOOD...POINT PLEASANT BEACH...SEASIDE HEIGHTS...
  MANTOLOKING...LEISURE VILLAGE...DOVER BEACHES NORTH...DOVER BEACHES
  SOUTH...BRICK TOWNSHIP...LEISURE VILLAGE EAST...HOLIDAY CITY
  SOUTH...POINT PLEASANT...BRIELLE...SOUTH TOMS RIVER...ISLAND
  HEIGHTS...BAY HEAD AND GILFORD PARK.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

&&

LAT...LON 4006 7406 4006 7412 4005 7406 4003 7405
      4001 7408 4000 7406 3991 7407 3991 7408
      3996 7408 3994 7415 3993 7411 3990 7414
      3986 7413 3981 7424 4005 7419 4010 7405
      4010 7404

$$

PO
1 follow-up statement
392 
WGUS71 KPHI 282334
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
734 PM EDT THU MAY 28 2015

NJC029-282342-
/O.CAN.KPHI.FF.W.0002.000000T0000Z-150528T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OCEAN NJ-
734 PM EDT THU MAY 28 2015

...THE FLASH FLOOD WARNING FOR NORTHEASTERN OCEAN COUNTY IS
CANCELLED...

THE STEADY AND HEAVY RAINS HAVE ENDED. A FEW SCATTERED SHOWERS MAY 
OCCUR OVER THE NEXT FEW HOURS. MOST OF THE FLOOD WATERS HAVE 
RECEDED...AND ARE NO LONGER EXPECTED TO POSE A THREAT TO LIFE OR 
PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES.

LAT...LON 4006 7406 4006 7412 4005 7406 4003 7405
      4001 7408 4000 7406 3991 7407 3991 7408
      3996 7408 3994 7415 3993 7411 3990 7414
      3986 7413 3981 7424 4005 7419 4010 7405
      4010 7404

$$

PO

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 28, 3:12 PM EDTAreal Flood AdvisoryPHIOcean3 hr
May 28, 4:39 PM EDTSpecial Marine WarningPHI66 min
May 28, 5:04 PM EDTSpecial Marine WarningPHI86 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.