Alert archive / New Jersey / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly

June 1, 1998Mercer County, Middlesex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 1, 1998, 1:10 AM EDT for Mercer County, Middlesex County, New Jersey. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 1, 1998, 1:10 AM EDT (05:10 UTC)
Expired: Jun 1, 1998, 2:00 AM EDT
In force: 50 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

Counties Mercer County, NJ, Middlesex County, NJ

What was reported inside it

Time	Report	Where	Remark
Jun 1, 1:25 AM EDT	Thunderstorm Wind 50	Countywide, NJ

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 31, 10:00 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 5.2 hours before the alert went out and 153 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: 151 J/kg
Mixed-layer CIN: -348 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 233 m²/s²
0-3 km storm-relative helicity: 319 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.

198 
WUUS1 KPHL 010511 RRA
SVRPHL
NJC021-023-010600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
110 AM EDT MON JUN 1 1998

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MIDDLESEX COUNTY IN NEW JERSEY
  NORTHERN MERCER COUNTY IN NEW JERSEY

* UNTIL 200 AM EDT

* AT 109 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM IN THE VICINITY OF PRINCETON MOVING EAST
  NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM IS EXPECTED TO BE NEAR...
  SOUTH RIVER AT 113 AM EDT
  HIGHLAND PARK AT 113 AM EDT
  MIDDLESEX AT 114 AM EDT
  EDISON AT 115 AM EDT
  SAYREVILLE AT 116 AM EDT
  DUNELLEN AT 116 AM EDT
  SOUTH PLAINFIELD AT 117 AM EDT
  METUCHEN AT 120 AM EDT
  LAURENCE HARBOR AT 122 AM EDT
  PERTH AMBOY AT 123 AM EDT
  CARTERET AT 128 AM EDT

A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. SEVERE
THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING.

THIS IS A DANGEROUS STORM. MOVE INSIDE A STRONG BUILDING AND DO
NOT STAND NEAR WINDOWS. FOR YOUR PROTECTION MOVE TO AN INTERIOR
ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER
RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE
TELEVISION OUTLET.

KRAUS/DELISI

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 8:42 PM EDT	Tornado Warning	PHI	Sussex	33 min
May 31, 10:31 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	19 min
May 31, 11:01 PM EDT	Severe Thunderstorm Warning	PHI	Warren	34 min
May 31, 11:24 PM EDT	Severe Thunderstorm Warning	PHI	Morris	31 min
Jun 1, 1:15 AM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	35 min
Jun 1, 1:15 AM EDT	Severe Thunderstorm Warning	PHI	Camden	35 min
Jun 1, 1:26 AM EDT	Severe Thunderstorm Warning	PHI	Cumberland	49 min
Jun 1, 1:30 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington	65 min
Jun 1, 1:37 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	63 min
Jun 1, 1:37 AM EDT	Severe Thunderstorm Warning	PHI	Middlesex	63 min
Jun 1, 1:42 AM EDT	Severe Thunderstorm Warning	PHI	Cape May	48 min
Jun 1, 1:44 AM EDT	Severe Thunderstorm Warning	PHI	Mercer	36 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.