Alert archive / New Jersey / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 45, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 1991, 8:59 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 61 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
- Aug 3, 1991, 8:59 PM EDT (00:59 UTC)
- Expired
- Aug 3, 1991, 10:00 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Burlington County, NJ, Ocean County, NJ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 9:00 PM EDT | Thunderstorm Wind 0 | Burlington, NJ | |
| Aug 3, 9:15 PM EDT | Hail 0.75 | Ocean, NJ | |
| Aug 3, 9:15 PM EDT | Thunderstorm Wind 55 | 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 00:00Z, 1.0 hours before the alert went out and 47 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
- 672 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1325 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Aug 3, 4:31 PM EDT, 4 hours 28 minutes before
PAZ007>12-016-032200-
SPECIAL WEATHER STATEMENT - THUNDERSTORM
NATIONAL WEATHER SERVICE PHILADELPHIA PA
430 PM EST SAT AUG 3 1991
...THUNDERSTORM NEAR PENNSYLVANIA...DELAWARE BORDER MOVING TOWARD
WESTERN SALEM AND SOUTHWEST GLOUCESTER COUNTIES IN NEW JERSEY...
AT 430 PM WEATHER SERVICE RADAR SHOWED A THUNDERSTORM IN NORTHERN
DELAWARE NEAR THE PENNSYLVANIA BORDER. THIS THUNDERSTORM WAS MOVING
VERY SLOWLY EAST AND MAY BE PRODUCING SOME LOCALLY HEAVY RAIN. GUSTY
WINDS AND CLOUD TO GROUND LIGHTNING MAY ALSO BE ACCOMPANYING THIS
THUNDERSTORM.
THE THUNDERSTORM WILL CONTINUE TO MOVE SLOWLY EAST AND WILL
REACH SALEM OR SOUTHWEST GLOUCESTER COUNTY IN NEW JERSEY BEFORE 5 PM.
PERSONS ENGAGED IN OUTDOOR ACTIVITIES IN THESE TWO COUNTIES OF
NEW JERSEY SHOULD BE ALERT FOR THE APPROACH OF THIS STORM AND READY TO
MOVE INDOORS IF NECESSARY.Special weather statement, Aug 3, 6:54 PM EDT, 2 hours 5 minutes before
PAZ007>12-016-032200-
SPECIAL WEATHER STATEMENT - THUNDERSTORMS IN PHILA AREA
NATIONAL WEATHER SERVICE PHILADELPHIA PA
650 PM EST SAT AUG 3 1991
...THUNDERSTORMS MOVING INTO PHILADELPHIA AREA FROM THE WEST...
AT 645 PM WEATHER SERVICE RADAR SHOWED THUNDERSTORMS FROM CENTRAL
CHESTER COUNTY PENNSYLVANIA TO NORTHERN CHESAPEAKE BAY TO NEAR
BALTIMORE MARYLAND. THESE THUNDERSTORMS WERE MOVING EAST AROUND 15
MPH AND WILL AFFECT PARTS SOUTHEASTERN PENNSYLVANIA UNTIL AROUND 730
PM. THESE THUNDERSTORMS MAY CAUSE LOCALLY HEAVY RAIN AND GUSTY
WINDS...AND MAY BE ACCOMPANIED BY DANGEROUS CLOUD TO GROUND LIGHTNING.
IF OUT OF DOORS WHEN THUNDERSTORMS APPROACH...SEEK SHELTER IN
A NEARBY BUILDING OR IN YOUR CAR.
SPSpecial weather statement, Aug 3, 7:04 PM EDT, 1 hour 55 minutes before
DEZ003-002-001-040200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 701 PM EDT SAT AUG 3 1991 AT 7PM EDT RADAR SHOWS A THUNDERSTORM WITH HEAVY RAIN JUST WEST OF NORTHERN NEW CASTLE COUNTY OF DELAWARE. THIS STORM IS MOVING SOUTHEASTERLY AT ABOUT 30 MPH AND WILL AFFECT PORTIONS OF NEW CASTLE COUNTY DURING THE NEXT HOUR. IF THIS STORM PASSES YOUR AREA...YOU CAN EXPECT LOCALLY HEAVY RAIN BRIEF GUSTY WINDS IN EXCESS OF 40 MPH AND DANGEROUS LIGHTNING. BOATERS ON THE UPPER DELAWARE BAY SHOULD STAY ALERT FOR AND AVOID THIS STORM. ANOTHER AREA OF THUNDERSTORMS ARE OVER THE UPPER CHESAPEAKE BAY AND WILL LIKELY MOVE INTO PORTIONS OF CENTRAL DELAWARE BETWEEN 8 AND 9 PM SEDT THIS EVEING. ADDITIONAL STATEMENTS WILL BE ISSUED AS REQUIRED BY CONDITIONS. CKD
Special weather statement, Aug 3, 7:43 PM EDT, 1 hour 16 minutes before
NJZ002>004-040040 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 735 PM EDT SAT AUG 3 1991 ...SEVERE THUNDERSTORMS CROSSING SOUTHEAST PENNSYLVANIA... AT 733 PM...OUR WEATHER SEARCH RADAR INDICATED THUNDERSTORMS WITH HAIL ...INTENSE DOWNPOURS...GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING MOVING FROM SOUTHEAST PENNSYLVANIA CHESTER...DELAWAREW AND PHILADELPHIA COUNTIES INTO THE WESTERN POTIONS OF SOUTHERN NEW JERSEY CAMDEN...GLOUCESTER AND SALEM COUNTIES. ALSO FROM EXTREME NORTHERN DELAWARE ACROSS THE UPPER DELAWARE BAY. 3/4 INCH HAIL HAS BEEN REPORTED WITH THESE STORMS. OTHER WIDELY SCATTERD STORMS WERE DETECTED IN NORTHERN NEW JERSEY SOUTHERN SOMERSET COUNTY...ALONG6 THE UPPER EASTERN SHORES OF THE CHESAPEAKE BAY IN MARYLAND. SHOWERS WERE ALONG THE NEW JERSEY COAST AND COASTAL WATERS FROM SEASIDE HEIGHTS TO ASBURY PARK.
Special weather statement, Aug 3, 7:44 PM EDT, 1 hour 15 minutes before
NJZ002>004-040040 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 735 PM EDT SAT AUG 3 1991 ...SEVERE THUNDERSTORMS CROSSING SOUTHEAST PENNSYLVANIA... AT 733 PM...OUR WEATHER SEARCH RADAR INDICATED THUNDERSTORMS WITH HAIL ...INTENSE DOWNPOURS...GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING MOVING FROM SOUTHEAST PENNSYLVANIA CHESTER...DELAWAREW AND PHILADELPHIA COUNTIES INTO THE WESTERN POTIONS OF SOUTHERN NEW JERSEY CAMDEN...GLOUCESTER AND SALEM COUNTIES. ALSO FROM EXTREME NORTHERN DELAWARE ACROSS THE UPPER DELAWARE BAY. 3/4 INCH HAIL HAS BEEN REPORTED WITH THESE STORMS. OTHER WIDELY SCATTERD STORMS WERE DETECTED IN NORTHERN NEW JERSEY SOUTHERN SOMERSET COUNTY...ALONG THE UPPER EASTERN SHORES OF THE CHESAPEAKE BAY IN MARYLAND. SHOWERS WERE ALONG THE NEW JERSEY COAST AND COASTAL WATERS FROM SEASIDE HEIGHTS TO ASBURY PARK. IF THREATENING WEATHER APPROACHES BE PREPARED TO SEEK SHELTER. MOVEMENT WAS EAST AT 20 MILES AN HOUR. FXD
Special weather statement, Aug 3, 8:32 PM EDT, 27 minutes before
DEZ002-001-040330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 830 PM EDT SAT AUG 3 1991 RADAR SHOWS AN AREA OF THUNDERSTORMS OVER MARYLANDS EASTERN SHORE NEAR GOLDSBORO AT 830 PM EDT...THESE STORMS WILL MOVE INTO SOUTHERN KENT AND NORTH SUSSEX COUNTIES OF DELAWARE BY 9PM THEN SOUTHEAST ACROSS SOUTHERN KENT AND SUSSEX COUNTIES BY ABOUT 11 PM THIS EVENING. AS THE STORMS MOVE THROUGH YOU CAN EXPECT HEAVY RAIN GUSTY WINDS TO 50 MPH DANGEROUS LIGHTNING AND POSSIBLE HAIL. BOATERS ON THE LOWER DELAWARE BAY AND THE ATLANTIC COAST OF DELAWARE SHOULD MAKE ALL EFFORTS TO AVOID THESE STORMS. ADDITIONAL STATEMENTS WILL BE ISSUED AS REQUIRED BY CHANGING CONDITIONS. CKD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:11 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 49 min |
| Aug 3, 8:14 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 46 min |
| Aug 3, 8:23 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 67 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.