Alert archive / New Jersey / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 10, 1990, 6:49 PM EDT for Atlantic County, Cumberland County, New Jersey. It was in force for 56 min. 3 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
- May 10, 1990, 6:49 PM EDT (22:49 UTC)
- Expired
- May 10, 1990, 7:45 PM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Atlantic County, NJ, Cumberland 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 |
|---|---|---|---|
| May 10, 7:00 PM EDT | Tornado F0 | Cumberland, NJ | |
| May 10, 7:10 PM EDT | Tornado F2 | Cumberland, NJ | |
| May 10, 7:30 PM EDT | Thunderstorm Wind 53 | Atlantic, 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, 10.8 hours before the alert went out and 33 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.
- Mixed-layer CAPE
- 39 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KACY 102250
SVRACY
NJC001-011-102345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
649 PM EDT THU MAY 10 1990
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL 745 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH NEW JERSEY
...ATLANTIC...CUMBERLAND
AND ADJACENT COASTAL WATERS.
AT 645 PM EDT RADAR LOCATED A STRONG THUNDERSTORM OVER DELAWARE BAY 15
MILES SOUTHWEST OF MILLVILLE NEW JERSEY. THIS STORM IS MOVING
NORTHEAST AT 40 MILES AN HOUR AN WILL PASS OVER CUMBERLAND AND
ATLANTIC COUNTIES DURING THE NEXT ONE TO TWO HOURS.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE 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.The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 35 min |
| May 10, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 35 min |
| May 10, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 57 min |
| May 10, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 66 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1990Every 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.