Alert archive / New Jersey / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 102, NWS Philadelphia/Mount Holly

June 25, 2004Hunterdon County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 25, 2004, 3:38 PM EDT for Hunterdon County, New Jersey. It was in force for 67 min. 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, 3:38 PM EDT (19:38 UTC)
Expired: Jun 25, 2004, 4:45 PM EDT
In force: 67 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

County Hunterdon County, NJ

The radar

The Philadelphia radar (KDIX), 92 km from the middle of the area, began a volume at 19:39 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, 7.6 hours before the alert went out and 172 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.

339 
WUUS51 KPHI 251938
SVRPHI
NJC019-252045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
338 PM EDT FRI JUN 25 2004

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY

* UNTIL 445 PM EDT

* AT 334 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  HIGH BRIDGE...OR ABOUT 22 MILES EAST OF BETHLEHEM...AND MOVING EAST
  AT 10 MPH. TORRENTIAL DOWNPOURS ARE ALSO LIKELY WITH THIS STORM AND
  WILL PRODUCE POOR DRAINAGE FLOODING.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HIGH BRIDGE BY 350 PM EDT...
  LEBANON AND CALIFON BY 410 PM EDT...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 4073 7481 4073 7474 4068 7472 4053 7493
          4065 7509 4068 7503 4068 7500 4078 7489

$$

TFG

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, 4:01 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris	85 days
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

Severe Thunderstorm Warnings in New Jersey, 2004 Every severe thunderstorm 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.