Alert archive / New Jersey / Flash Flood Warnings in 2004

Flash Flood Warning 6, NWS Philadelphia/Mount Holly

June 25, 2004Hunterdon County, Morris County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 25, 2004, 4:01 PM EDT for Hunterdon County, Morris County, New Jersey. It was in force for 85 days. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 25, 2004, 4:01 PM EDT (20:01 UTC)
Expired: Sep 18, 2004, 11:30 AM EDT
In force: 85 days
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Hunterdon County, NJ, Morris County, NJ

The radar

The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 20:05 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.0 hours before the alert went out and 146 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1143 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 127 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 252005
FFWPHI
NJC019-252300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
401 PM EDT FRI JUN 25 2004

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY

* UNTIL 700 PM EDT

* AT 354 PM EDT...RADAR INDICATED UP TO 3 INCHES OF RAIN HAD FALLEN
  OVER PORTIONS OF NORTHERN HUNTERDON COUNTY...WITH MORE RAIN ON 
  THE WAY.

* THE WATERSHEDS MOST SUSCEPTIBLE TO FLOODING ARE THE RARITAN 
  RIVER NEAR CLINTON...THE SOUTH BRANCH OF THE RARITAN RIVER...SPRUCE
  RUN...AND ALL SMALL STREAMS IN THESE WATERSHEDS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 4063 7508 4055 7496 4067 7475 4077 7488

$$

JJM

1 follow-up statement

000 
WGUS51 KPHI 181137
FFWPHI
NJC027-181530-
/X.NEW.KPHI.FF.W.0006.040918T1137Z-040918T1530Z/
/0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
737 AM EDT SAT SEP 18 2004

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MORRIS COUNTY IN NORTHERN NEW JERSEY

* UNTIL 1130 AM EDT

* AT 733 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  BETWEEN 2 AND 3 INCHES OF RAIN DURING THE PAST FEW HOURS WITH MORE 
  RAIN ON THE WAY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUCCASUNNA...PARSIPPANY...MORRISTOWN...LAKE TELEMARK...DOVER...
  CHESTER AND BOONTON.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 4079 7480 4074 7464 4072 7446 4095 7433
      4102 7454

$$

JJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 3:17 PM EDT	Flash Flood Warning	PHI	Hunterdon	85 days
Jun 25, 3:38 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	67 min
Jun 25, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Somerset	54 min
Jun 25, 4:57 PM EDT	Severe Thunderstorm Warning	PHI	Morris	48 min
Jun 25, 5:11 PM EDT	Flash Flood Warning	PHI	Sussex, Warren	85 days
Jun 25, 6:29 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	61 min

Nearby

Flash Flood Warnings in New Jersey, 2004 Every flash flood warning in 2004

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.