Alert archive / New Jersey / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 27, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 15, 1989, 8:18 PM EDT for Cape May County, Cumberland County, New Jersey. It was in force for 57 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
- Jun 15, 1989, 8:18 PM EDT (00:18 UTC)
- Expired
- Jun 15, 1989, 9:15 PM EDT
- In force
- 57 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Cape May County, NJ, Cumberland 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 15, 8:38 PM EDT | Thunderstorm Wind 52 | Cumberland, 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, 0.3 hours before the alert went out and 50 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
- 1156 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1008 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KACY 160018
SVRACY
NJC009-011-160115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
818 PM EDT THU JUN 15 1989
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL 915 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH NEW JERSEY
...CAPE MAY...CUMBERLAND
AND ADJACENT COASTAL WATERS.
RADAR SHOWED A SEVERE THUNDERSTORM JUST NORTH WEST OF DOVER DELAWARE.
THIS STORM WAS MOVING TO THE EAST NORTHEAST AT NEARLY 40 MILES AN HOUR
AND SHOULD ENTER CUMBERLAND COUNTY WITHIN THE NEXT HALF HOUR.
THIS IS A DANGEROU4S 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.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 15, 2:26 PM EDT, 5 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 145 PM EDT THU JUNE 15 1989 ...THUNDERSTORM AND EXCESSIVE RAINFALL POTENTIAL STATEMENT FOR SOUTHERN NEW JERSEY... SHOWERS AND THUNDERSTORMS ARE LIKELY TO DEVELOP OVER MUCH OF SOUTHERN NEW JERSEY DURING THIS AFTERNOON AS A WARMER AND MORE UNSTABLE AIRMASS MOVES INTO THE REGION FROM THE MIDDLE ATLANTIC STATES. SHOWERS AND THUNDERSTORMS WHICH WERE OVER THE SUSQUEHANA VALLEY OF EASTERN PENNSYLVANIA EXTENDING SOUTH INTO MARYLAND WILL MOVE NORTHEAST INTO SOUTHERN NEW JERSEY LATER THIS AFTERNOON. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE LATE IN THE DAY AND MAY BE ACCOMPANIED BY STRONG DAMAGING WINDS IN EXCESS OF 60 MILES AN HOUR...DANGEROUS LIGHTNING...AND HAIL. SOME THUNDERSTORMS WILL ALSO CONTAIN LOCALLY HEAVY RAIN WHICH MAY PRODUCE FLOODING IN AREAS OF POOR DRAINAGE. THE CAUSE OF THE WET WEATHER OVER OUR REGION IS A LOW PRESSURE SYSTEM WHICH WAS CENTERED OVER THE OHIO VALLEY LATE THIS MORNING. A WARM FRONT ASSOCIATED WITH THIS SYSTEM WILL MOVE NORTH OF THE FORECAST ARE THIS AFTERNOON. SHOWERS AND THUNDERSTORMS ARE LIKELY TO CONTINUE INTO SATURDAY UNTIL A COLD FRONT WHICH TRAILS SOUTH FROM THE LOW MOVES EAST AND OFF THE MID ATLANTIC COASTLINE. SCURA
Special weather statement, Jun 15, 3:28 PM EDT, 4 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHILADELPHIA, PA 319 PM EDT THU JUN 15 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1000 PM EDT THIS EVENING FOR SOUTHESTERN PENNSYLVANIA AND SOUTHERN NEW JERSEY... AT 325 PM...NO THUNDERSTORMS HAVE BEEN OBSERVED OVER SOUTHEASTERN PENNSYLVANIA AND SOUTHERN NEW JERSEY. HOWEVER...A WARM FRONT WAS LOCATED OVER NORTHERN DELAWARE AND THIS FRONT WILL MOVE INTO THE PHILADELPHIA METROPOLITAN AREA THIS EVENING. SOME SUNSHINE MAY OCCUR THROUGH LATE THIS AFTERNOON. THIS IN COMBINATION WITH UNSTABLE WARM AND HUMID AIR ALONG AND SOUTH OF THE WARM FRONT COULD ACT AS A TRIGGER FOR STRONG AND POSSIBLY SEVERE THUNDERSTORMS. THUNDERSTORMS COULD FOR/M ANYTIME THROUGH THIS EVENING. ANY THUNDERSTORMS THAT DO FORM MAY CONTAIN STRONG DAMAGING WINDS... LARGE HAIL AND DANGEROUS LIGHTNING. VERY HEAVY RAINS ARE ALSO POSSIBLE GIVING THE ADDITIONAL THREAT OF FLOODING IN POOR DRAINAGE AREAS. RNS
Special weather statement, Jun 15, 5:13 PM EDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHILADELPHIA, PA 512 PM EDT THU JUN 15 1989 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1000 PM EDT THIS EVENING FOR SOUTHESTERN PENNSYLVANIA AND SOUTHERN NEW JERSEY... WEATHER SERVICE RADAR AT 510 PM THIS AFTERNOON INDICATED SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPING OVER DELAWARE AND PHILADELPHIA COUNTIES OF SOUTHEASTERN PENNSYLVANIA...AND OVER WESTERN BURLINGTON COUNTY OF SOUTHERN NEW JERSEY. THE PRECIPITATION WAS MOVING NORTHEAST AT 35 MILES AN HOUR. SOME OF THE THUNDERSTORMS MAY CONTAIN LOCALLY HEAVY RAINFALL AND GUSTY WINDS TO AROUND 25 MILES AN HOUR...BUT AT THIS TIME...NO THUNDERSTORMS HAVE BECOME SEVERE. CONDITIONS REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT OVER MOST OF SOUTHEASTERN PENNSYLVANIA AND SOUTHERN NEW JERSEY...AND THEREFORE A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR THE AREA UNTIL 1000 PM THIS EVENING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT SEVERE WEATHER WITH WIND GUSTS IN EXCESS OF 58 MILES AN HOUR AND/OR LARGE HAIL IS POSSIBLE IN THE WATCH AREA...BUT NOT A CERTAINTY. IF YOU SEE THREATENING WEATHER APPROACHING...PLEASE SEEK IMMEDIATE SHELTER INDOORS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL TELEVISION OR RADIO STATION FOR ADDITIONAL STATEMENTS OR POSSIBLE WARNINGS. WERT
Special weather statement, Jun 15, 6:36 PM EDT, 1 hour 42 minutes before
ABPA- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALLENTOWN PA 630 PM EDT THU JUN 15 1989 ...SHOWERS AND THUNDERSTORMS MOVING THROUGH EAST CENTRAL PENNSYLVANIA... A LARGE AREA OF SHOWERS AND THUNDERSTORMS ARE LOCATED FROM HAZELTON PENNSYLVANIA SOUTHWEST TO MARYLAND. THE HEAVIEST SHOWERS AND THUNDERSTORMS ARE LOCATED OVER WESTERN SCHUYLKILL AND BERKS COUNTY. THESE SHOWERS AND THUNDERSTORMS AND MOVING NORTHEAST AT ABOUT 35 MPH AND MAY CONTAIN HIGH WIND...HEAVY RAIN...DANGEROUS LIGHTNING AND POSSIBLE HAIL. PERSONS IN THESE AREAS SHOULD BE ON THE ALERT FOR POSSIBLE SEVERE WEATHER OVER THE NEXT HOUR. IF SEVERE WEATHER IS SIGHTED BE PREPARED TO MOVE TO A PLACE OF SAFETY. $$GIANNETTA
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 9:24 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 51 min |
| Jun 16, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 35 min |
| Jun 16, 6:27 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 63 min |
| Jun 16, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 50 min |
| Jun 16, 7:53 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Ocean | 67 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.