Alert archive / New Jersey / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 22, 1987, 5:14 PM EDT for Burlington County, New Jersey. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Sep 22, 1987, 5:14 PM EDT (21:14 UTC)
- Expired
- Sep 22, 1987, 6:10 PM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Burlington County, NJ
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Atlantic City In, NJ (KACY), launched 12:00Z, 9.2 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1741 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 34 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 KPHL 222114 SVRPHL NJC005-222210- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHILADELPHIA PA 514 PM EDT TUE SEP 22 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 610 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHWEST NEW JERSEY...BURLINGTON AT 510 PM EDT RADAR INDICATED SEVERE THUNDERSTORMS IN SOUTHERN MERCER COUNTY AND SOUTHEAST CAMDEN COUNTY. THESE STORMS ARE MOVING EAST AT 20 MILES AN HOUR. THESE ARE DANGEROUS STORMS AND PEOPLE IN THE WARNED AREA SHOULD BE PREPARED FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND LIGHTNING. SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE SHELTER. MOBILE HOMES ARE MOST VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED. DPG
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, Sep 22, 3:50 PM EDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 343 PM EDT TUE SEP 22 1987 INTENSE THUNDERSTORMS CONTINUED TO MOVE ACROSS THE EXTREME LOWER DELAWARE BAY...COASTAL WATERS OF CAPE MAY COUNTY TO WILDWOOD... ALSO AROUND WILMINGTON DELAWARE AND FROM HARRISBURG TO LANCASTER TP POTTSTOWN PENN- SYLVANIA AND HUNTERDON COUNTY NEW JERSEY. FREQUENT DANGEROUS LIGHTNING... HAIL...VERY HEAVY DOWNPOURS AND STRONG GUSTY WINDS MAY ACCOMPANY THESE STORMS. BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. THUNDERSTORMS AND SHOWERS...SOME HEAVY TO VERY HEAVY...WERE SCATTERED FROM SOUTHEAST NEW YORK STATE ACROSS NORTHERN NEW JERSEY...EASTERN PENNSYLVANIA ...SOUTHExAST CORNER AND COASTAL WATERS OF NEW JERSEY...LOWER DELAWARE BAY ...EXTREME NORTHERN DELAWARE. MOVEMENT WAS EAST AT 20 MILES AN HOUR. THUNDERSTORMS SHOULD MOVE INTO WESTERN HALF OF SOUTHERN NEW JERSEY WITHIN THE HOUR. FXD
Special weather statement, Sep 22, 4:05 PM EDT, 1 hour 9 minutes before
ABPA-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALLENTOWN PA
405 PM EDT TUE SEP 22 1987
...THUNDERSTORMS OVER THE LEHIGH VALLEY...
AT 400 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED VERY HEAVY
THUNDERSTORMS OCCURRING IN THE WESTERN PORTIONS OF BERKS AND
SCHUYLKILL COUNTIES. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT
20 MPH. THESE THUNDERSTORMS WILL SPREAD OVER THE REST OF THE LEHIGH
OVER THE NEXT TWO HOURS.
THESE THUNDERSTORMS COULD PRODUCE PERIODS OF HEAVY RAIN...GUSTY
WINDS AND DANGEROUS LIGHTNING.
PERSONS THROUGHOUT THE LEHIGH VALLEY SHOULD STAY ALERT AND BE PREPARED
TO MOVE TO A PLACE OF SAFETY SHOULD THREATENING WEATHER BE OBSERVED.
$$BLACKBURNLocal storm report, Sep 22, 4:13 PM EDT, 1 hour 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON DE
410 PM EDT TUE SEP 22 1987
DATE/TIME OF EVENT: SEPT 22, 1987 1500-1610
1526 EDT PEA TO MARBLE SIZE HAIL PIKE CREEK VALLEY, DE
1535 EDT PEA TO MARBOLE SIZE HAIL CONTINUING PIKE CREEK VALLEY
VERY HEAVY RAIN
1601 EDT DIME SIZE HAIL REPORT FROM PENNY HILL, DE
ENDSpecial weather statement, Sep 22, 4:50 PM EDT, 24 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 345 PM EDT TUE SEP 22 1987 INTENSE THUNDERSTORMS CONTINUED TO MOVE ACROSS THE COASTAL WATERS OF CAPE MAY COUNTY TO WILDWOOD... ALSO IN SOUTHEASTERN PENNSYLVANIA... CENTRAL AND NORTHERN NEW JERSEY. FREQUENT DANGEROUS LIGHTNING... HAIL...VERY HEAVY DOWNPOURS AND STRONG GUSTY WINDS MAY ACCOMPANY THESE STORMS. BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. THUNDERSTORMS AND SHOWERS...SOME HEAVY TO VERY HEAVY...WERE SCATTERED FROM SOUTHEAST NEW YORK STATE ACROSS EXTREME NORTHERN NEW JERSEY AND NORTHERN PENNSYLVANIA. MOVEMENT WAS EAST AT 20 MILES AN HOUR. THE THUNDERSTORMS SHOULD MOVE INTO BURLINTON AND OCEAN COUNTY DURING THE NEXT HOUR. WHC
Special weather statement, Sep 22, 4:55 PM EDT, 19 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION NATIONAL WEATHER SERVICE ATLANTIC CITY NJ 445 PM EDT TUE SEP 22 1987 INTENSE THUNDERSTORMS CONTINUED TO MOVE ACROSS THE COASTAL WATERS OF CAPE MAY COUNTY TO WILDWOOD... ALSO IN SOUTHEASTERN PENNSYLVANIA... CENTRAL AND NORTHERN NEW JERSEY. FREQUENT DANGEROUS LIGHTNING... HAIL...VERY HEAVY DOWNPOURS AND STRONG GUSTY WINDS MAY ACCOMPANY THESE STORMS. BE PREPARED TO SEEK SHELTER IF THREATNING WEATHER APPROACHES. THUNDERSTORMS AND SHOWERS...SOME HEAVY TO VERY HEAVY...WERE SCATTERED FROM SOUTHEAST NEW YORK STATE ACROSS EXTREME NORTHERN NEW JERSEY AND NORTHERN PENNSYLVANIA. MOVEMENT WAS EAST AT 20 MILES AN HOUR. THE THUNDERSTORMS SHOULD MOVE INTO BURLINTON AND OCEAN COUNTY DURING THE NEXT HOUR. WHC
Special weather statement, Sep 22, 5:08 PM EDT, 6 minutes before
ABPA-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALLENTOWN PA
505 PM EDT TUE SEP 22 1987
...THUNDERSTORMS HAVE DECREASED OVER THE LEHIGH VALLEY...
AT 500 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED ONLY MODERATE
THUNDERSTORMS OCCURRING OVER BERKS...SCHUYLKILL...CARBON AND LEHIGH
COUNTIES. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 20 MPH.
THESE THUNDERSTORMS ARE DECREASING IN INTENSITY AND BECOMING MORE
WIDELY SCATTERED. THE POTENTIAL STILL EXIST FOR THESE STORMS TO
REDEVELOPE.
PERSONS THROUGHOUT THE LEHIGH VALLEY SHOULD STAY ALERT AND BE PREPARED
TO MOVE TO A PLACE OF SAFETY SHOULD THREATENING WEATHER BE OBSERVED.
$$BLACKBURNThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 10:59 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 61 min |
| Sep 22, 11:31 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 59 min |
| Sep 22, 4:09 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 36 min |
| Sep 22, 4:34 PM EDT | Severe Thunderstorm Warning | PHI | Mercer | 41 min |
| Sep 22, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Camden | 40 min |
| Sep 22, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 25 min |
| Sep 22, 6:01 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 59 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; the sounding from the Mesonet's radiosonde archive.