Alert archive / New Jersey / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 7, 1991, 1:42 PM EDT for Cape May County, New Jersey. It was in force for 63 min. 1 report 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 7, 1991, 1:42 PM EDT (17:42 UTC)
- Expired
- Jul 7, 1991, 2:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Cape May County, NJ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 7, 2:35 PM EDT | Thunderstorm Wind 51 | Cape May, 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, 5.7 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.
- Mixed-layer CAPE
- 1207 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 1172 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 67 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 071742 SVRACY NJC009-071845- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 142 PM EDT SUN JUL 7 1991 THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH NEW JERSEY ...CAPE MAY COUNTY AND FOR THE ADJACENT COASTAL WATERS AT 134PM EDT OUR WEATHER SEARCH RADAR SHOWED A LINE OF THUNDERSTORMS MOVING INTO CAPE MAY COUNTY. THIS LINE HAS A HISTORY OF DAMAGING WINDS AND HAIL. MOVEMENT WAS EAST AT 30 TO 35 MILES AN HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, Jul 7, 11:23 AM EDT, 2 hours 19 minutes before
PAZ011-016-071630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALLENTOWN PA 1115 AM EDT SUN JUL 7 1991 ...SEVERE THUNDERSTORM WATCH UNTL 5 PM EDT FOE EASTERN PENNSYLVANIA... ...VERY HEAVY THUNDERSTORM IN SOUTHERN BERKS COUNTY... AT 1110 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY HEAVY THUNDERSTORM IN SOUTHERN BERKS COUNTY MOVING SOUTHEAST AROUND 35 MPH. ALSO...A LINE OF HEAVY THUNDERSTORMS EXTENDS FROM STROUDSBURG TO CHESTER COUNTY. THIS LINE IS MOVING SOUTHEAST AROUND 35 MPH AND WILL MOVE ACROSS SOUTHEASTERN PENNSYLVANIA AND WEST CENTRAL NEW JERSEY BETWEEN 1115 AM AND 1230 PM. PEOPLE LIVING IN SOUTHEASTERN PENNSYLVANIA AND WEST CENTRAL NEW JERSEY SHOULD SEEK SHELTbER WHEN THESE STORMS ARRIVE. REMEMBER...A SEVERE THUNDERSTORMS WATCH MEANS ATMOSPHERIC CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT IN AND NEAR THE WATCH AREA. DOVICO
Special weather statement, Jul 7, 11:31 AM EDT, 2 hours 11 minutes before
PAZ011-016-071630- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE ALLENTOWN PA 1115 AM EDT SUN JUL 7 1991 ...SEVERE THUNDERSTORM WATCH UNTL 5 PM EDT FOR EASTERN PENNSYLVANIA... ...VERY HEAVY THUNDERSTORM IN SOUTHERN BERKS COUNTY... AT 1110 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY HEAVY THUNDERSTORM IN SOUTHERN BERKS COUNTY MOVING SOUTHEAST AROUND 35 MPH. ALSO...A LINE OF HEAVY THUNDERSTORMS EXTENDS FROM STROUDSBURG SOUTHWEST TO CHESTER COUNTY. THIS LINE IS MOVING SOUTHEAST AROUND 35 MPH AND WILL MOVE ACROSS SOUTHEASTERN PENNSYLVANIA AND WEST CENTRAL NEW JERSEY BETWEEN 1115 AM AND 1230 PM. PEOPLE LIVING IN SOUTHEASTERN PENNSYLVANIA AND WEST CENTRAL NE4W JERSEY SHOULD SEEK SHELTER WHEN THESE STORMS ARRIVE. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS ATMOSPHERIC CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT IN AND NEAR THE WATCH AREA. DOVICO
Special weather statement, Jul 7, 11:51 AM EDT, 1 hour 51 minutes before
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
Special weather statement, Jul 7, 12:02 PM EDT, 1 hour 40 minutes before
PAZ012-NJZ002-072100- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH NATIONAL WEATHER SERVICE PHILADELPHIA PA 1200 NOON EDT SUN JUL 7 1991 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 5 PM EDT TODAY FOR MOST OF CENTRAL AND SOUTHERN PENNSYLVANIA AND ALL OF SOUTHERN NEW JERSEY INCLUDING ADJACENT COASTAL WATERS... AT 12 NOON NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF HEAVY THUNDERSTORMS JUST WEST OF THE DELAWARE RIVER FROM EAST OF ALLENTOWN INTO DELAWARE. THESE WERE MOVING TOWARD THE EAST AT AROUND 35 MILES AN HOUR. OVER THE NEXT COUPLE HOURS THEY WILL EXIT PENNSYLVANIA AND MOVE THROUGH MERCER...BURLINGTON...CAMDEN...GLOUCESTER AND SALEM COUNTIES OF SOUTHERN NEW JERSEY. DAMAGING WIND GUSTS...HAIL...HEAVY DOWNPOURS AND FREQUENT LIGHTNING HAVE BEEN REPOTED OVER SOUTHEASTERN PENNSYLVANIA AS THESE STORMS MOVED THROUGH. BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES. FURTHER STATEMENTS OR WARNINGS WILL BE ISSUED AS NEEDED. NC
Special weather statement, Jul 7, 12:35 PM EDT, 1 hour 7 minutes before
PAZ011-016-071900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALLENTOWN PA 1230 PM EDT SUN JUL 7 1991 ...SEVERE THUNDERSTORM WATCH UNTL 5 PM EDT FOR EASTERN PENNSYLVANIA... ...LINE OF HEAVY THUNDERSTORMS IN NEW JERSEY... AT 1230 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF VERY HEAVY THUNDERSTORMS EXTENDING FROM NORTHEASTERN NEW JERSEY SOUTHWEST TO SOUTHWESTERN NEW JERSEY. THE LINE IS MOVING SOUTHEAST AT 35 MPH. NO OTHER THUNDERSTORMS WERE NOTED IN EASTERN PENNSYLVANIA. HOWEVER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR EASTERN PENNSYLVANIA UNTIL 5 PM. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS ATMOSPHERIC CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT IN AND NEAR THE WATCH AREA. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATIONS FOR THE LATEST INFORMATION ON THIS WEATHER SITUATION. DOVICO
Special weather statement, Jul 7, 1:06 PM EDT, 36 minutes before
DEZALL- 071900- SPECIAL WEATHER STATEMENT CORRECTION NATIONAL WEATHER SERVICE WILMINGTON DE 1250 PM EDT SUN JUL 7 1991 ...SEVERE THUNDERSTORM WATCH FOR DELAWARE UNTIL 6PM EDT... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR ALL OF DELAWARE AND THE ADJACENT COASTAL WATERS UNTIL 6 PM EDT THIS EVENING. THE LINE OF THUNDERSTORMS THAT MOVED THROUGH NORTHERN DELAWARE DURING THE PAST HOUR PRODUCED WIND GUSTS TO 46 MPH AT THE NEW CASTLE COUNTY AIRPORT... ALONG WITH BRIEF HEAVY RAIN. ANOTHER AREA OF THUNDERSTORMS WAS LOCATED ACROSS SOUTHERN PENNSYLVANIA FROM 15 MILES NORTHWEST OF WILMINGTON WESTWARD TO 20 MILES NORTH OF HAGERSTOWN MARYLAND. THESE ARE MOhVING EAST 30 MPH AND WILL BEGIN MOVING THROUGH NORTHERN DELAWARE AGAIN AFTER 1PM. IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER INSIDE IMMEDIATELY. CS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 58 min |
| Jul 7, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 58 min |
| Jul 7, 12:17 PM EDT | Severe Thunderstorm Warning | PHI | Mercer | 58 min |
| Jul 7, 12:42 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 63 min |
| Jul 7, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 65 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.