Alert archive / New Jersey / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 57, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 20, 1989, 9:56 PM EST for Cape May County, New Jersey. It was in force for 2 hr. 4 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
- Nov 20, 1989, 9:56 PM EST (02:56 UTC)
- Expired
- Nov 21, 1989, 12:00 AM EST
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Cape May 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 |
|---|---|---|---|
| Nov 20, 9:58 PM EST | Thunderstorm Wind 66 | Cape May, NJ | |
| Nov 20, 10:20 PM EST | Thunderstorm Wind 0 | Cape May, NJ | |
| Nov 20, 10:25 PM EST | Thunderstorm Wind 0 | Cape May, NJ | |
| Nov 20, 10:30 PM EST | Thunderstorm Wind 0 | 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 00:00Z, 2.9 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1712 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 197 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 210256
SVRACY
NJC009-210500-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
956 PM EST MON NOV 20 1989
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL MIDNIGHT EST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH NEW JERSEY
...CAPE MAY
AND ADJACENT COASTAL WATERS.
A LINE OF THUNDERSTORMS IS MOVING INTO NEW JERSEY AT THIS TIME. WIND
GUSTS 0F 80 MILES AN HOUR WERE REPORTED IN HAMMONTON IN ATLANTIC
COUNTY. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 50 MILES AN HOUR
AND WILL MOVE INTO CAPE MAY COUNTY WITHIN THE NEXT HOUR.
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.
GOGNIATWhat 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, Nov 20, 7:37 PM EST, 2 hours 19 minutes before
ABPA- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALLENTOWN PA 730 PM EST SAT NOV 18 1989 ...THUNDERSTORMS WITH VERY STRONG WINDS HEADING FOR LEHIGH VALLEY... AT 730 PM RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM JUST EAST OF WILLIAMSPORT SOUTHWEST TO EAST OF ALTOONA. THIS LINE IS MOVING VERY RAPIDLY TOWARD THE SOUTHEAST AT AROUND 50 MPH. THESE THUNDERSTORMS CONTAIN VERY STRONG WINDS. STATE COLLGE REPORTED GUSTS TO 71 MPH AT 7PM THIS EVENING WHILE WILLIAMSPORT HAD WINDS TO 63 MPH AT JUST AFTER 700PM. AT THE PRESENT RATE OF MOVEMENT THESE STORMS SHOULD ENTER THE LEHIGH VALLEY AROUND 9PM THIS EVENING. RESIDENTS SHOULD TAKE PRECAUTIONS FOR VERY STRONG WINDS AND SECURE ANY LOOSE OBJECTS AROUND THEIR PROPERTY. MUCH COLDER AIR WILL MOVE INTO OUR AREA AFTER THE FRONTAL PASSAGE. $$LOEPER
Special weather statement, Nov 20, 8:11 PM EST, 1 hour 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 810 PM EST MON NOV 21 1989 ...FAST MOVING COLD FRONT WITH STRONG GUSTY WINDS MOVING TOWARD DELAWARE... A FAST MOVING COLD FRONT IN WESTERN PENNSYLVANIA WILL PASS THROUGH NORTHERN DELAWARE SHORTLY AFTER MIDNIGHT. A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF SOUTHEAST PENNSYLVANIA AND INCLUDES ALL COUNTIES BORDERING NORTHERN DELAWARE ...BUT DOES NOT INCLUDE ANY PORTION OF DELAWARE. AS THE COLD APPROACHES THIS EVENING WIND WILL GRADUALLY TURN TO A MORE WESTERLY DIRECTION AND INCREASE TO ABOUT 20 TO 30 MPH WITH HIGHER GUST BY THE LATE EVENING HOURS. WITH COLD FRONTAL PASSAGE WINDS WILL SHIFT TO NORTHWEST AT ABOUT 25 TO 35 MPH WITH SOME GUST IN EXCESS OF 50 MPH. THE WINDS WILL REMAIN STRONG AND GUSTY OVERNIGHT AND BEGIN TO DIMINISH SLOWLY ON TUESDAY. SCATTERED THUNDERSTORMS ARE POSSIBLE WITH THE FRONT IN NORTHERN DELAWARE AND IF A THUNDERSTORM DOES OCCURDANGEROUS LIGHTNING AND DAMAGING WINDS ARE POSSIBLE. WINDS JUST BEFORE AND FOLLOWING THE FRONT WILL BE STRONG AND GUSTY STATEWIDE...BUT THE STORNGEST WINDS WILL BE IN THE NORTH PART OF THE FIRST STATE. BE AWARE OF THE SITUATION AND BE PREPARED TO SEEK SAFE SHELTER. BOATERS ON WATERS ADJOINING DELAWARE SHOULD PUT INTO HARBOR UNTIL THE THREAT OF THESE STRONG WINDS SUBSIDE LATER TUESDAY. ADDTIONAL STATEMENTS WILL BE ISSUED AS REQUIRED BY CONDITIONS. CKD
Special weather statement, Nov 20, 8:13 PM EST, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHILADELPHIA, PA 813 PM EST MON NOV 20 1989 ...SEVERE THUNDERSTORM WATCH FOR THE PHILADELPHIA METROPOLITAN AREA UNTIL 2 AM EST... AT 800 PM...A LINE OF THUNDERSTORMS EXTENDED FROM THE POCONOS TO THE LOWER SUSQUEHANNA VALLEY IN PENNSYLVANIA. THESE THUNDERSTORMS CONTAINED WIND GUSTS UP TO 85 MPH AS THEY MOVED THROUGH CENTRAL PENNSYLVANIA. THE THUNDERSTORMS WILL APPROACH THE WESTERN SUBURBS OF PHILADELPHIA AROUND 815 PM AND SHOULD CROSS SOUTHERN NEW JERSEY BY MIDNIGHT. THE WINDS WITH THE THUNDERSTORMS COULD BE STRONG ENOUGH TO BRING DOWN TREE LIMBS AND PRODUCE POWER OUTAGES. ANY LOOSE OBJECTS LEFT OUTDOORS SHOULD BE SECURED OR BROUGHT I7NDOORS. RNS
Special weather statement, Nov 20, 8:50 PM EST, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 845 PM EST MON NOV 20 1989 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN NEW JERSEY UNTILL 2 AM EST... A COLD FRONT MOVING RAPIDLY ACROSS PENNSYLVANIA HAS GENERATED A LINE OF STRONG THUNDERSTORMS. THESE THUNDERSTORMS HAVE CAUSED WINDS UP TO 70 TO 85 MPH AT SEVERAL PLACES...HARRISBURG AND STATE COLLEGE. THE FRONT WITH THE THUNDERSTORMS WILL MOVE SOUTHEAST AT 45 TO 50 MILES AN HOUR AND WILL PASS ACROSS SOUTHERN NEW JERSEY BY 1 AM. RADAR...AT 825 PM...INDICATED AN AREA OF SHOWERS OVER EASTERN PENNSYLVANIA ...FROM PIKE COUNTY SOUTHWEST INTO THE HARRISBURG AREA. MOVEMENT WAS TO THE SOUTHEAST AT 50 MILES AN HOUR. PERSONS SHOULD TAKE COVER AND LISTEN TO NOAA RAIDO FOR FURTHER STATEMENTS AND OR WARNINGS. GAGER
Special weather statement, Nov 20, 8:52 PM EST, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON DE 853 PM EST MON NOV 21 1989 ...HIGH WIND WARNING FOR DELAWARE TONIGHT... ...FAST MOVING COLD FRONT WITH STRONG GUSTY WINDS MOVING TOWARD DELAWARE... A FAST MOVING COLD FRONT IN WESTERN PENNSYLVANIA WILL PASS THROUGH NORTHERN DELAWARE SHORTLY AFTER MIDNIGHT. A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF SOUTHEAST PENNSYLVANIA AND INCLUDES ALL COUNTIES BORDERING NORTHERN DELAWARE ...BUT DOES NOT INCLUDE ANY PORTION OF DELAWARE. AS THE COLD APPROACHES THIS EVENING WIND WILL GRADUALLY TURN TO A MORE WESTERLY DIRECTION AND INCREASE TO ABOUT 20 TO 30 MPH WITH HIGHER GUST BY THE LATE EVENING HOURS. WITH COLD FRONTAL PASSAGE WINDS WILL SHIFT TO NORTHWEST AT ABOUT 25 TO 35 MPH WITH SOME GUST IN EXCESS OF 50 MPH. THE WINDS WILL REMAIN STRONG AND GUSTY OVERNIGHT AND BEGIN TO SCATTERED THUNDERSTORMS ARE POSSIBLE WITH THE FRONT IN NORTHERN DELAWARE AND IF A THUNDERSTORM DOES OCCUR DANGEROUS LIGHTNING AND DAMAGING WINDS ARE POSSIBLE. WINDS JUST BEFORE AND FOLLOWING THE FRONT WILL BE STRONG AND GUSTY STATEWIDE...BUT THE STORNGEST WINDS WILL BE IN THE NORTH PART OF THE FIRST STATE. BE AWARE OF THE SITUATION AND BE PREPARED TO SEEK SAFE SHELTER. BOATERS ON WATERS ADJOINING DELAWARE SHOULD PUT INTO HARBOR UNTIL THE THREAT OF THESE STRONG WINDS SUBSIDE LATER TUESDAY. ADDTIONAL STATEMENTS WILL BE ISSUED AS REQUIRED BY CONDITIONS. CKD
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 8:55 PM EST | Severe Thunderstorm Warning | PHI | Mercer | 65 min |
| Nov 20, 9:15 PM EST | Severe Thunderstorm Warning | PHI | Burlington, Camden | 60 min |
| Nov 20, 9:15 PM EST | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 60 min |
| Nov 20, 9:28 PM EST | Severe Thunderstorm Warning | PHI | Ocean | 2 hr |
| Nov 20, 9:28 PM EST | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland | 77 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1989Every severe thunderstorm warning in 1989
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.