Alert archive / New Jersey / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 35, NWS Philadelphia/Mount Holly

July 9, 1990Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 9, 1990, 5:58 PM EDT for Ocean County, New Jersey. It was in force for 62 min. 2 reports 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: Jul 9, 1990, 5:58 PM EDT (21:58 UTC)
Expired: Jul 9, 1990, 7:00 PM EDT
In force: 62 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

County Ocean County, NJ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jul 9, 6:30 PM EDT	Thunderstorm Wind 0	Ocean, NJ
Jul 9, 6:30 PM EDT	Thunderstorm Wind 0	Ocean, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 10.0 hours before the alert went out and 51 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: 684 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 614 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KACY 092159
SVRACY
NJC029-092300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
558 PM EDT MON JUL 9 1990
 
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL  700 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH NEW JERSEY
          ...OCEAN
 
AND ADJACENT COASTAL WATERS.
 
 
AT 555 PM EDT WEATHER SERVICE RADAR IN ATLANTIC CITY INDICATED A
POSSIBLE SEVERE THUNDERSTORM IN SOUTHERN MONMOUTH COUNTY NJ.
 
THE STORM WAS MOVING SOUTHEAST AT 40 MILES AN HOUR.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARTE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
 
HAYES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	50 min
Jul 9, 5:43 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	32 min
Jul 9, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	64 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1990 Every severe thunderstorm warning in 1990

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.