Alert archive / New Jersey / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 54, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 7, 1987, 2:24 AM EDT for Atlantic County, Cape May County, New Jersey. It was in force for 56 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
- Oct 7, 1987, 2:24 AM EDT (06:24 UTC)
- Expired
- Oct 7, 1987, 3:20 AM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Atlantic County, NJ, 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 |
|---|---|---|---|
| Oct 7, 2:50 AM EDT | Thunderstorm Wind 0 | Atlantic, 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, 6.4 hours before the alert went out and 28 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
- 6 J/kg
- Mixed-layer CIN
- -261 J/kg
- Mixed-layer LCL
- 1240 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 89 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 070625
SVRACY
NJC001-009-070720-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
224 AM EDT WED OCT 7 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 320 AM EDT FOR THE FOLLOWING COUNTIES OF
SOUTHERN NEW JERSEY... ATLANTIC... CAPE MAY
...AND ADJACENT COASTAL WATERS.
RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF MILVILLE NEW
JERSEY MOVING EAST AT 3O MILES AN HOUR. HEAVY RAIN...DAMAGING WINDS
AND HAIL CAN BE EXPECTED AS IT MOVES EAST THRU CAPE MAY AND ATLANTIC
COUNTIES.
THIS IS A DANGEROUS STORM AND PEOPLE IN THE WARNED AREA SHOULD
PREPARE FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN
AND LIGHTNING. SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE
SHELTER. MOBILE TRAILERS ARE MOST VULNERABLE TO HIGH WINDS AND
SHOULD BE AVOIDED.
VAMWhat 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, Oct 7, 1:10 AM EDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHILADELPHIA, PA 100 AM EDT WED OCT 07 1987 ...AREA OF SHOWERS AND A FEW HEAVY THUNDERSTORMS OVER THE EASTERN SUSQUEHANNA VALLEY AND EASTERN MARYLAND... AT 1AM THIS MORNING NATIONAL WEATHER SERVICE RADAR SHOWERS AND A FEW HEAVY THUNDERSTORMS FROM THE WESTERN POCONOS SOUTH ACROSS LANCASTER AND WESTERN CHESTER COUNTIES IN PENNSYLVANIA AND SOUTH ACROOS EASTERN MARYLAND. THIS AREA OF SHOWERS WAS MOVING EAST ABOUT 10 MPH WHILE THE THE INDIVIDUAL SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AROUND 30 MPH. BY 4 AM EDT THIS AREA OF PRECIPITATION WILL MOVE EAST ACROSS MUCH OF EAST CENTRAL AND SOUTHEASTERN PENNSYLVANIA AND ACROSS THE STATE OF DELAWARE. THE EASTERN EDGE OF THE SHOWERS AND THUNDERSTORMS SHOILD BE A LINE FROM ALLENTOWN TO CHESTER IN PENNSYLVANIA AND TO THE SOUTHWEST PART OF NEW JERSEY. LOCALLY HEAVY RAINS...BRIEF GUSTY WINDS AND FREQUENT LIGHTNING MAY ACCOMPANY THE THUNDERSTORMS. TCB
Special weather statement, Oct 7, 1:45 AM EDT, 39 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 140 AM EDT WED OCT 10 1987 ...DO NOT USE AFTER 3 AM... STRONG THUNDERSTORMS ARE APPROACHING SOUTHERN NEW JERSEY. AT 130 AM A BAND OF STRONG TO INTENSE THUNDERSTORMS WAS MOVING THRU EXTREME SOUTHEAST PENNSYLVANIA..DELAWARE AND EASTERN MARYLAND. THESE STORMS ARE MOVING TO THE EAST AT 35 MILES AN HOUR AND SOME OF THEM WILL PRODUCE BRIEF PERIODS OF STRONG..GUSTY WINDS..HEAVY RAIN AND FREQUENT LIGHTNING. THESE STORMS WERE PART OF A LARGER AREA OF SHOWERS WHICH COVERED EASTERN PENNSYLVANIA..DELAWARE..EASTERN MARYLAND AND COASTAL VIRGINIA. JGV
Special weather statement, Oct 7, 1:56 AM EDT, 28 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 140 AM EDT WED OCT 7 1987 ...DO NOT USE AFTER 3 AM... STRONG THUNDERSTORMS ARE APPROACHING SOUTHERN NEW JERSEY. AT 130 AM A BAND OF STRONG TO INTENSE THUNDERSTORMS WAS MOVING THRU EXTREME SOUTHEAST PENNSYLVANIA..DELAWARE AND EASTERN MARYLAND. THESE STORMS ARE MOVING TO THE EAST AT 35 MILES AN HOUR AND SOME OF THEM WILL PRODUCE BRIEF PERIODS OF STRONG..GUSTY WINDS..HEAVY RAIN AND FREQUENT LIGHTNING. THESE STORMS WERE PART OF A LARGER AREA OF SHOWERS WHICH COVERED EASTERN PENNSYLVANIA..DELAWARE..EASTERN MARYLAND AND COASTAL VIRGINIA. JGV CORRECTED FOR DATE
Special weather statement, Oct 7, 2:02 AM EDT, 22 minutes before
ABPA- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ALLENTOWN PA 200 AM EDT WED OCT 7 1987 ...LINE OF THUNDERSTORMS MOVING THROUGH EASTERN PENNSYLVANIA... AT 200 AM EDT RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM NORTHERN SCHUYLKILL COUNTY SOUTHEAST THROUGH THE LEHIGH VALLEY TO THE PHILADELPHIA AREA. THIS LINE IS MOVING TOWARD THE EAST AT AROUND 15 MPH. THERE WILL BE BRIEF PERIODS OF HEAVY RAIN...GUSTY WINDS AND CLOUD TO GROUND LIGHTNING AS THESE THUNDERSTORMS MOVE THROUGH THE EASTERN HALF OF PENNSYLVANIA DURNING THE NEXT TWO HOURS AND INTO NEW JERSEY AROUND 3AM. $$LOEPER
Special weather statement, Oct 7, 2:06 AM EDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHILADELPHIA, PA 204 AM EDT WED OCT 07 1987 ...AN AREA OF SHOWERS AND A SOME HEAVY THUNDERSTORMS OVER EASTERN PENNSYLVANIA...SOUTHWESTERN NEW JERSEY...DELAWARE AND EASTERN MARYLAND... AT 2AM THIS MORNING NATIONAL WEATHER SERVICE RADAR SHOWED SHOWERS AND A SOME HEAVY THUNDERSTORMS FROM THE WESTERN POCONOS SOUTH THE WESTERN LEHIGH VALLEY...MOST OF SOUTHEASTERN PENNSYLVANIA...THE STATE OF DELAWARE AND SOUTHWESTERN NEW JERSEY. THIS AREA OF SHOWERS AND THUNDERSTORMS IS MOVING EAST AT 35 MILES AN HOUR AND WILL MOVE ACROSS EAST CENTRAL AND SOUTHEASTERN PENNSYLVANIA AND ACROSS SOUTHERN NEW JERSEY BY 4 AM EDT. WIND GUSTS TO 45 MILES AN HOUR OR HIGHER HAVE BEEN REPORTED WITH SOME OF THESE THUNDERSTORMS. HEAVY DOWNPOURS...SMALL HAIL AND FREQUENT LIGHTING HAVE ALSO BEEN REPORTED. HEAVY DOWNPOURS...STRONG GUSTY WINDS...SMALL HAIL AND FREQUENT LIGHTNING CAN BE EXPECTED AS THESE THUNDERSTORMS MOVE ACROSS THE REMAINDER OF EAST CENTRAL AND SOUTHEAST PENNSYLVANIA AND SOUTHERN NEW JERSEY. TCB
Special weather statement, Oct 7, 2:14 AM EDT, 10 minutes before
SPECIAL WEATHER STATEMENT CORRECTED NATIONAL WEATHER SERVICE PHILADELPHIA, PA 210 AM EDT WED OCT 07 1987 ...AN AREA OF SHOWERS AND A SOME HEAVY THUNDERSTORMS OVER EASTERN PENNSYLVANIA...SOUTHWEST NEW JERSEY...DELAWARE AND EASTERN MARYLAND... AT 2AM THIS MORNING NATIONAL WEATHER SERVICE RADAR SHOWED SHOWERS AND A SOME HEAVY THUNDERSTORMS FROM THE WESTERN POCONOS SOUTH ACROSS THE WESTERN LEHIGH VALLEY...MOST OF SOUTHEASTERN PENNSYLVANIA...THE STATE OF DELAWARE AND SOUTHWESTERN NEW JERSEY. THIS AREA OF SHOWERS AND THUNDERSTORMS IS MOVING EAST AT 35 MILES AN HOUR AND WILL MOVE ACROSS EAST CENTRAL AND SOUTHEASTERN PENNSYLVANIA AND ACROSS SOUTHERN NEW JERSEY BY 4 AM EDT. WIND GUSTS TO 45 MILES AN HOUR OR HIGHER HAVE BEEN REPORTED WITH SOME OF THESE THUNDERSTORMS. HEAVY DOWNPOURS...SMALL HAIL AND FREQUENT LIGHTING HAVE ALSO BEEN REPORTED. HEAVY DOWNPOURS...STRONG GUSTY WINDS...SMALL HAIL AND FREQUENT LIGHTNING CAN BE EXPECTED AS THESE THUNDERSTORMS MOVE ACROSS THE REMAINDER OF EAST CENTRAL AND SOUTHEAST PENNSYLVANIA AND SOUTHERN NEW JERSEY. TCB
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 2:34 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 56 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1987Every severe thunderstorm warning in 1987
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.