Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 74, NWS Philadelphia/Mount Holly

July 25, 1994Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 1994, 3:37 PM EDT for Cape May County, New Jersey. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Jul 25, 1994, 3:37 PM EDT (19:37 UTC)
Expired
Jul 25, 1994, 4:45 PM EDT
In force
68 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Cape May County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 7.6 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.

Skew-T log-pSkew-T log-p diagram, Atlantic City In, NJ at 12:00Z on 1994-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1779 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1994-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1779 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1034 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS1 KACY 251937 RRA
SVRACY
NJC009-252045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
337 PM EDT MON JUL 25 1994
 
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...CAPE MAY COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
AT 3 35PM THIS AFTERNOON A SEVERE THUNDERSTORM WAS BEING DETECTED
NEAR OCEAN CITY NEW JERSEY. THIS STORM WAS MOVING EAST AT 25 MILES
AN HOUR.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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 25, 2:55 PM EDT, 42 minutes before
PAZ067>071-NJZ015>020-252300-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS   CORRECTION
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
255 PM EDT MON JUL 25 1994

...THUNDERSTORMS ON THE INCREASE...

THUNDERSTORMS ARE RAPIDLY DEVELOPING OVER EASTERN PENNSYLVANIA WITH
SEVERAL VERY HEAVY ONES IN A LINE.

THE LINE WAS LOCATED OVER LANCASTER AND BERKS COUNTIES. IT WILL MOVE
INTO CHESTER AND MONTGOMERY COUNTIES BETWEEN 315 PM 330 PM AND MAY
PRODUCE A WIND GUSTS OF 45 TO 50 MPH.

OTHER HEAVY THUNDERSTORMS WERE EXITING THE SOUTHERN PART OF GLOUCESTER
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EDT.

EBERWINE/ROSS
Special weather statement, Jul 25, 3:03 PM EDT, 34 minutes before
PAZ067>071-NJZ015>020-252300-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
155 PM EDT MON JUL 25 1995

...THUNDERSTORMS ON THE INCREASE...

THUNDERSTORMS ARE RAPIDLY DEVELOPING OVER EASTERN PENNSYLVANIA WITH
SEVERAL VERY HEAVY ONES IN A LINE.

THE LINE WAS LOCATED OVER LANCASTER AND BERKS COUNTIES. IT WILL MOVE
INTO CHESTER AND MONTGOMERY COUNTIES BETWEEN 315 PM 330 PM AND MAY
PRODUCE A WIND GUST.S OF 45 TO 50 MPH.

OTHER HEAVY THUNDERSTORMS WERE EXITING THE SOUTHERN PART OF GLOUCESTER
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EDT.

EBERWINE/ROSS
Special weather statement, Jul 25, 3:05 PM EDT, 32 minutes before
PAZ067>071-NJZ015>020-252300-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
155 PM EDT MON JUL 25 1994

...THUNDERSTORMS ON THE INCREASE...

THUNDERSTORMS ARE RAPIDLY DEVELOPING OVER EASTERN PENNSYLVANIA WITH
SEVERAL VERY HEAVY ONES IN A LINE.

THE LINE WAS LOCATED OVER LANCASTER AND BERKS COUNTIES. IT WILL MOVE
INTO CHESTER AND MONTGOMERY COUNTIES BETWEEN 315 PM 330 PM AND MAY
PRODUCE A WIND GUSTDS OF 45 TO 50 MPH.

OTHER HEAVY THUNDERSTORMS WERE EXITING THE SOUTHERN PART OF GLOUCESTER
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EDT.

EBERWINE/ROSS
Special weather statement, Jul 25, 3:09 PM EDT, 28 minutes before
PAZ067>071-NJZ015>020-252300-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS   CORRECTION
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
255 PM EDT MON JUL 25 1994

...THUNDERSTORMS ON THE INCREASE...

THUNDERSTORMS ARE RAPIDLY DEVELOPING OVER EASTERN PENNSYLVANIA WITH
SEVERAL VERY HEAVY ONES IN A LINE.

THE LINE WAS LOCATED OVER LANCASTER AND BERKS COUNTIES. IT WILL MOVE
INTO CHESTER AND MONTGOMERY COUNTIES BETWEEN 315 PM 330 PM AND MAY
PRbODUCE A WIND GUSTS OF 45 TO 50 MPH.

OTHER HEAVY THUNDERSTORMS WERE EXITING THE SOUTHERN PART OF GLOUCESTER
COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM EDT.

EBERWINE/ROSS
Special weather statement, Jul 25, 3:10 PM EDT, 27 minutes before
PAZ048-054-055-058-060-061-062-252030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALLENTOWN PA...CORRECTION
245 PM EDT MON JUL 25 1994

     ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
EFFECTIVE UNTIL 9 PM EDT FOR ALL OF EAST CENTRAL PENNSYLVANIA AND THE
POCONOS. THIS INCLUDES NORTHAMPTON...LEHIGH...BERKS...SCHUYLKILL...
CARBON...MONROE AND PIKE COUNTIES. CONDITIONS ARE FAVORABLE FOR THE
DEVELOPMENT OF SEVERE THUNDERSTORMS IN THE WATCH AREA. SOME OF THE
THUNDERSTORMS MAY CONTAIN TORRENTIAL DOWNPOURS AND GUSTY WINDS.

AT 245 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG
THUNDERSTORM OVER EASTERN LEBANON COUNTY. THE MOVEMENT IS TO THE EAST
AT 20 TO 30 MPH AND THIS WILL TAKE IT OVER THE LOWER HALF OF BERKS
COUNTY WITHIN THE HOUR. IF YOU SEE THREATENING WEATHER CONDITIONS...
TAKE SHELTER UNTIL THE STORM HAS PASSED.
STAY TUNED TO NOAA WEATHE.R RADIO OR YOUR LOCAL TELEVISION OR RADIO
STATIONS FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS.

FUNK
Special weather statement, Jul 25, 3:28 PM EDT, 9 minutes before
NJZ019>026-501-250315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
328 PM EDT MON JUL 25 1994

...SEVERE THUNDERSTORM WATCH FOR ALL OF NEW JERSEY UNTIL 9 PM...

AT 328 PM...WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY
RAIN POSSIBLE VERY STRONG WIND AND HAIL OVER NORTHERN CAPE MAY COUNTY
NEW JERSEY THHT WILL BE OVER OCEAN CITY NEW JERSEY SOON.  THUNDERSTORMS
WITH VERY HEAVY RAIN WAS OVER LONG BEACH ISLAND PCEAN COUNTY NEW JERSEY
AND WILL BE IN THE COASTAL WATERS SOON.
ANOTHER STORM WITH HEAVY RAIN POSSIBLE STRONG WIND AND HAIL WAS NEAR THE
CHESTER COUNTY BORDER OF SOUTHEAST PENNSYLVANIA.
SCATTERED THUNDERSTORMS WERE OVER MARYAND.
ALL OF THE THUNDERSTORMS HAVE THE POTENTIAL FOR TORRENTIAL RAINFALL AND
RAPID ROADWAY FLOODING IS POSSIBLE.

THE THUNDERSTORMS WERE MOVING EAST AT 20 MILES AN HOUR.
VAM

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 1:27 PM EDTSevere Thunderstorm WarningPHISalem48 min
Jul 25, 4:46 PM EDTSevere Thunderstorm WarningPHIMercer44 min
Jul 25, 4:53 PM EDTSevere Thunderstorm WarningPHIBurlington67 min
Jul 25, 5:29 PM EDTSevere Thunderstorm WarningPHIMiddlesex61 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1994Every severe thunderstorm warning in 1994

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.