Alert archive / New Jersey / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 1990, 3:09 PM EDT for Gloucester County, Salem County, New Jersey. It was in force for 36 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
- Jun 19, 1990, 3:09 PM EDT (19:09 UTC)
- Expired
- Jun 19, 1990, 3:45 PM EDT
- In force
- 36 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Gloucester County, NJ, Salem 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 |
|---|---|---|---|
| Jun 19, 3:15 PM EDT | Hail 0.75 | Salem, NJ | |
| Jun 19, 3:20 PM EDT | Hail 0.75 | Salem, NJ | |
| Jun 19, 3:25 PM EDT | Hail 0.75 | Gloucester, 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, 7.2 hours before the alert went out and 68 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
- 68 J/kg
- Mixed-layer CIN
- -214 J/kg
- Mixed-layer LCL
- 921 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 191911 SVRPHL NJC015-033-191945- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHILADELPHIA PA 309 PM EDT TUE JUN 19 1990 THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH NEW JERSEY ...GLOUCESTER COUNTY...SALEM COUNTY RADAR AT ATLANTIC CITY AT 305 PM EDT INDICATED A CLUSTER OF THUNDERSTORMS OVER DELAWARE BAY MOVING TOWARD SALEM AND GLOUCESTER COUNTY MOVING NORTHEAST ABOUT 30 MPH. SOME OF THESE THUNDERSTORMS MAY CONTAIN HAIL TO ABOUT THREE QUARTER INCH AND STRONG GUSTY WINDS. THIS IS A DANGEROUS STORM. IF YOU ARE IN THE WARNED AREA...PREPARE FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING. SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE SHELTER INDOORS...BUT DO NOT STAND NEAR WINDOWS. MOBILE HOMES ARE MOST VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED.
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 8:05 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 115 min |
| Jun 19, 2:57 PM EDT | Severe Thunderstorm Warning | PHI | Mercer | 33 min |
| Jun 19, 3:13 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 32 min |
| Jun 19, 4:43 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 62 min |
| Jun 19, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 5 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.