Alert archive / New Jersey / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 22, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 1991, 10:51 PM EDT for Gloucester County, New Jersey. It was in force for 39 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1991, 10:51 PM EDT (02:51 UTC)
- Expired
- Jun 30, 1991, 11:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Gloucester County, NJ
The nearest sounding before it
Atlantic City In, NJ (KACY), launched 00:00Z, 2.9 hours before the alert went out and 63 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
- 804 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1420 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 010258 SVRPHL NJC015-010330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHILADELPHIA PA 1051 PM EDT SUN JUN 30 1991 THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH NEW JERSEY ...GLOUCESTER COUNTY AT 1050 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN ISOLATED THUNDERSTORMS IN EXTREME WESTERN GLOUCESTER COUNTY. THIS THUNDERSTORM WAS REPORTED TO BE INTENSIFYING AS IT MOVED SOUTHEAST AROUND 40 MPH. THIS THUNDERSTORM IS EXPECTED TO MOVE ACROSS GLOUCESTER COUNTY DURING THE NEXT 30 MINUTES. 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 HIsGH WINDS AND SHOULD BE AVOIDED.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 30, 5:59 PM EDT, 4 hours 52 minutes before
DEZ003-002-001-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 557 PM EDT SUN JUN 30 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR DELAWARE UNTIL 9PM THIS EVENING... AT 545 PM EDT RADAR SHOWS SHOWERS AND ISOLATED THUNDERSTORMS OVER THE NORTHERN HALF OF DELAWARE MOVING SOUTHEAST AT ABOUT 35 MPH. THE STORMS WITH THE HEAVIEST RAIN AND STRONG GUSTY WINDS HAVE MOVED INTO SOUTHERN NEW JERSEY. AS THESE STORMS PASSED THROUGH THE WILMINGTON AREA...WIND GUST TO 55 MPH WERE RECORDED AT THE AIRPORT. SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER MUCH OF THE FIRST STATE THIS EVENING...AND SOME MAY CONTAIN HEAVY RAIN...GUSTY WINDS AND HAIL. ADDITIONAL STATEMENTS WILL BE ISSUED AS REQUIRED BY CHANGING CONDITIONS. CKD
Special weather statement, Jun 30, 6:42 PM EDT, 4 hours 9 minutes before
PAZ012-NJZ002-004-006-010100- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH CANCELLATION NATIONAL WEATHER SERVICE PHILADELPHIA PA 640 PM EDT SUN JUN 30 1991 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR MUCH OF SOUTHEAST PENNSYLVANIA...SOUTHERN NEW JERSEY...AND NORTHERN DELAWARE... THE NATIONAL WEATHER SERVICE HAS CANCELLED THE SEVERE THUNDERSTORM WATCH FOR THE PHILADELPHIA METROPOLITAN AREA. THE STRONG THUNDERSTORMS THAT MOVED ACROSS THE DELAWARE VALLEY HAVE NOW MOVED OFF THE NEW JERSEY COAST. WHILE A FEW SCATTERED SHOWERS OR THUNDERSTORMS MAY ACCOMPANY A COLD FRONT DROPPING SOUTH ACROSS THE AREA THIS EVENING...THE THUNDERSTORMS ARE NOT EXPECTED TO REACH SEVERE LIMITS. RPW
Special weather statement, Jun 30, 6:57 PM EDT, 3 hours 54 minutes before
DEZ003-002-001-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 654 PM EDT SUN JUN 30 1991 ...CANCEL THE SEVERE THUNDERSTORM WATCH FOR DELAWARE... THE SEVERE THUNDERSTORM WATCH FOR DELAWARE HAS BEEN CANCELED...SOME SHOWERS AND THUNDERSTORMS MAY OCCUR FOR THE NEXT SEVERAL HOURS OVER THE FIRST STATE...HOWEVER THE THREAT OF SEVERE WEATHER HAS DIMINISHED. THIS WILL BE THE LAST STATEMENT ON THIS EVENT. CKD
Special weather statement, Jun 30, 7:02 PM EDT, 3 hours 49 minutes before
NJZ002>004-006-302345 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 635 PM EDT SUN JUN 30 1991 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR SOUTHERN NEW JERSEY... ...SPECIAL MARINE WARNING REMAINS IN EFFECT FROM MANASQUAN INLET TO CAPE MAY UNTIL 715 PM EDT... AT 635 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF SEVERE THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE OCEAN 5 TO 50 MILES EAST OF ATLANTIC CITY NEW JERSEY. THESE THUNDERSTORMS PRODUCED WIND GUSTS TO 65 MILES AN HOUR AND MARBLE SIZED HAIL AS THEY MOVED THROUGH SOUTHERN NEW JERSEY DURING THE LAST HOUR. OTHER THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED OVER HUNTERDON AND SOMERSET COUNTIES OF NORTHERN NEW JERSEY ...AS WELL AS JUST TO THE SOUTH OF LONG ISLAND NEW YORK. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 45 MILES AN HOUR. SCURA
Local storm report, Jun 30, 7:33 PM EDT, 3 hours 18 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PHILADELPHIA, PA
733 PM EDT SUN JUN 30 1991
PRELIMINARY SEVERE THUNDERSTORM REPORTS FOR SUNDAY JUNE 30 1991
TIME (EDT) COUNTY LOCATION EVENT
1700 DELAWARE PA THORNBERRY TWP TREES DOWN GUST 60 MPH
1700 DELAWARE PA MEDIA, RIDLEY TREES AND WIRES DOWN
1730 SALEM NJ PITTSGROVE 3 TREES DOWN AND WIRES
TOWNSHIP D OWN
1730 GLOUCESTER NJ WASHINGTON NUMEROUS TREES AND WIRES
TOWNSHIP DOWNSpecial weather statement, Jun 30, 7:44 PM EDT, 3 hours 7 minutes before
NJZ002>004-006-010045 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 730 PM EDT SUN JUN 30 1991 AT 730 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN AREA OF THUNDERSTORMS WITH VERY HEAVY RAIN OVER CENTRAL NEW JERSEY...IN MONMOUTH COUNTY. THESE THUNDERSTORMS WILL BE MOVING INTO OCEAN COUNTY OF NEW JERSEY DURING THE NEXT HOUR AND MAY PRODUCE GUSTY WINDS...HEAVY DOWNPOURS AND DEADLY CLOUD TO GROUND LIGHTNING. OTHER THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE MOVING OFFSHORE OF SOUTHERN NEW JERSEY ABOUT 70 MILES SOUTHEAST OF ATLANTIC CITY. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 45 MILES AN HOUR. SCURA
Nearby
Severe Thunderstorm Warnings in New Jersey, 1991Every severe thunderstorm warning in 1991
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.