Alert archive / New Jersey / Flash Flood Warnings in 2008

Flash Flood Warning 12, NWS Philadelphia/Mount Holly

June 14, 2008Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 14, 2008, 8:55 PM EDT for Monmouth County, New Jersey. It was in force for 3 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 14, 2008, 8:55 PM EDT (00:55 UTC)
Expired
Jun 14, 2008, 11:45 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 00:55 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

TimeReportWhereRemark
Jun 14, 9:00 PM EDTHEAVY RAIN 3Leonardo, NJTHREE INCHES OF RAIN IN 45 MINUTES IN MIDDLETOWN TOWNSHIP.
Jun 14, 9:15 PM EDTFLOODHighlands, NJROADWAY FLOODING.

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, 0.9 hours before the alert went out and 114 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 00:00Z on 2008-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 257 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 00:00Z on 2008-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 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
257 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1172 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
17 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.

000 
WGUS51 KPHI 150056
FFWPHI
NJC025-150500-
/O.NEW.KPHI.FF.W.0012.080615T0055Z-080615T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
855 PM EDT SAT JUN 14 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...

* UNTIL 100 AM EDT

* AT 850 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  NEARLY STATIONARY THUNDERSTORMS WITH TORRENTIAL DOWNPOURS
  IN MONMOUTH COUNTY. RAINFALL AMOUNTS CAN EASILY EXCEED THREE
  INCHES IN THE WARNING AREA. THIS IS A VERY DANGEROUS SITUATION
  AS THE THUNDERSTORMS ARE NOT MOVING. 
 
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HOLMDEL...
  SANDY HOOK...MIDDLETOWN...RED BANK...LINCROFT...KEANSBURG AND
  HIGHLANDS

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.

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.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 4030 7397 4026 7397 4023 7398 4026 7431
      4044 7421 4045 7411 4044 7409 4041 7400
      4045 7401 4046 7398 4045 7397 4034 7395
TIME...MOT...LOC 0055Z 180DEG 0KT 4033 7426

$$
 
TFG
1 follow-up statement
000 
WGUS71 KPHI 150345
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1145 PM EDT SAT JUN 14 2008

NJC025-150400-
/O.CAN.KPHI.FF.W.0012.000000T0000Z-080615T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONMOUTH NJ-
1145 PM EDT SAT JUN 14 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
MONMOUTH COUNTY...

WITH THE HEAVY RAIN WELL OFF THE COAST AND WITH ONLY SCATTERED 
SHOWERS ANTICIPATED FOR THE OVERNIGHT, THE NATIONAL WEATHER SERVICE 
HAS CANCELLED THE FLASH FLOOD WARNING FOR NORTHEASTERN MONMOUTH 
COUNTY.

LAT...LON 4030 7397 4026 7397 4023 7398 4026 7431
      4044 7421 4045 7411 4044 7409 4041 7400
      4045 7401 4046 7398 4045 7397 4034 7395
TIME...MOT...LOC 0342Z 180DEG 0KT 4033 7426

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 8:26 PM EDTSpecial Marine WarningPHI64 min
Jun 14, 8:35 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Somerset55 min
Jun 14, 8:38 PM EDTSevere Thunderstorm WarningPHIMonmouth52 min
Jun 14, 9:03 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean57 min
Jun 14, 9:25 PM EDTSpecial Marine WarningPHI65 min
Jun 14, 9:52 PM EDTSpecial Marine WarningPHI53 min
Jun 14, 9:56 PM EDTSevere Thunderstorm WarningPHICape May64 min
Jun 14, 10:42 PM EDTSpecial Marine WarningPHI63 min
Jun 15, 2:23 PM EDTSpecial Marine WarningPHI2 hr
Jun 15, 2:36 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland54 min
Jun 15, 2:38 PM EDTSpecial Marine WarningPHI2 hr
Jun 15, 2:50 PM EDTSevere Thunderstorm WarningPHIMonmouth25 min
Jun 15, 3:40 PM EDTSpecial Marine WarningPHI95 min
Jun 15, 3:51 PM EDTSpecial Marine WarningPHI61 min

Nearby

Flash Flood Warnings in New Jersey, 2008Every flash flood warning in 2008

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.