Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 107, NWS Philadelphia/Mount Holly

August 27, 1994Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 27, 1994, 10:49 PM EDT for Burlington County, New Jersey. It was in force for 56 min.

The area

The counties it named.

The facts

Issued: Aug 27, 1994, 10:49 PM EDT (02:49 UTC)
Expired: Aug 27, 1994, 11:45 PM EDT
In force: 56 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

County Burlington County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 2.8 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2096 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1156 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 280250 RRA
SVRPHL
NJC005-280345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
1049 PM EDT SAT AUG 27 1994
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...BURLINGTON COUNTY
 
AT 1045 PM WEATHER SERVICE RADAR SHOWED AN AREA OF VERY STRONG
THUNDERSTORMS IN THE NORTHERN HALF OF BURLINGTON COUNTY...THE
STRONGEST THUNDERSTORMS WERE JUST WEST OF MT. HOLLY AND NEAR
MARLTON.  THESE THUNDERSTORMS MAY PRODUCE WIND GUSTS OF OVER 55
MPH...HAIL...HEAVY RAIN...AND DEADLY LIGHTNING.
 
     THE THUNDERSTORMS WERE MOVING TOWARD THE SOUTHEAST AROUND
15 MPH AND WILL MOVE THROUGH BURLINGTON COUNTY DURING THE NEXT
HOUR.
 
 
 
    SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE SHELTER
INDOORS...BUT DO NOT STAND NEAR WINDOWS.  MOBILE HOMES AR:E MOST
VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED.

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, Aug 27, 5:50 PM EDT, 4 hours 59 minutes before

PAZ060-272250-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE PHILADELPHIA PA/MT HOLLY NJ
550 PM EDT SAT AUG 27 1994

...STRONG THUNDERSTORM IN BERKS COUNTY NEAR WOMELSDORF...

     AT 545 PM WEATHER SERVICE DOPPLER RADAR SHOWED A STRONG
THUNDERSTORM IN WESTERN BERKS COUNTY NEAR WOMELSDORF.  THIS STORM
WAS MOVING TOWARD THE SOUTHEAST AROUND 15 MPH AND WILL CROSS SOUTHERN
BERKS COUNTY BETWEEN NOW AND 7 PM.

     THIS THUNDERSTORM MAY PRODUCE LOCALLY HEAVY RAIN...GUSTY
WINDS...DEADLY LIGHTNING...AND SMALL HAIL.

     BE ON THE ALERT FOR THREATENING CONDITIONS.  MOVE INDOORS
IF POSSIBLE.

SP

WSUS41KMKC._

Special weather statement, Aug 27, 5:52 PM EDT, 4 hours 57 minutes before

PAZ060-272250-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE PHILADELPHIA PA/MT HOLLY NJ
550 PM EDT SAT AUG 27 1994

...STRONG THUNDERSTORM IN BERKS COUNTY NEAR WOMELSDORF...

     AT 545 PM WEATHER SERVICE DOPPLER RADAR SHOWED A STRONG
THUNDERSTORM IN WESTERN BERKS COUNTY NEAR WOMELSDORF.  THIS STORM
WAS MOVING TOWARD THE SOUTHEAST AROUND 15 MPH AND WILL CROSS SOUTHERN
BERKS COUNTY BETWEEN NOW AND 7 PM.

     THIS THUNDERSTORM MAY PRODUCE LOCALLY HEAVY RAIN...GUSTY
WINDS...DEADLY LIGHTNING...AND SMALL HAIL.

     BE ON THE ALERT FOR THREATENING CONDITIONS.  MOVE INDOORS
IF POSSIBLE.

SP

Special weather statement, Aug 27, 7:00 PM EDT, 3 hours 49 minutes before

PAZ067>071-NJZ015-280010-

SPECIAL WEATHER STATEMENT...TSTMS
NATIONAL WEATHER SERVICE PHILADELPHIA PA/MT HOLLY NJ
700 PM EDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WARNING FOR MERCER COUNTY NEW JERSEY TILL 720 PM...
...THUNDERSTORMS MOVING INTO SOUTHEAST PENNSYLVANIA...

     AT 7 PM WEATHER SERVICE DOPPLER RADAR SHOWED A LINE OF VERY
STRONG THUNDERSTORMS MOVING SOUTH THROUGH MERCER COUNTY NEW JERSEY.
SOME OF THESE THUNDERSTORMS MAY CONTAIN GUSTY WINDS OF OVER 55 MPH AND
LARGE HAIL.  HEAVY RAIN IS ALSO LIKELY WITH THIS LINE.

     IN SOUTHEAST PENNSYLVANIA...DOPPLER RADAR SHOWED A VERY STRONG
THUNDERSTORM IN SOUTHERN CHESTER COUNTY.  THERE WERE OTHER SHOWERS
AND THUNDERSTORMS IN THE EXTREME NORTH AND NORTHWEST PARTS OF
CHESTER COUNTY...AS WELL AS IN WESTERN MONTGOMERY COUNTY AND NEAR THE
DELAWARE RIVER IN SOUTHERN BUCKS COUNTY.

     ALL THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE SOUTH OR
SOUTHEAST AT AROUND 15 MPH.

     SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED IN SOUTHEAST
PENNSYLVANIA AND ADJACENT PARTS OF SOUTHERN NEW JERSEY BETWEEN 7 AND 8 PM.

     SOME OF THE THUNDERSTORMS THAT OCCUR IN SOUTHEAST PENNSYLVANIA
AND SOUTHERN NEW JERSEY THIS EVENING MAY CONTAIN LOCALLY HEAVY RAIN...
STRONG GUSTY WINDS...AND HAIL.  LISTEN TO NOAA WEATHER RADIO OR YOUR
LOCAL RADIO OR TV STATION FOR THE LATEST INFORMATION AND FOR POSSIBLE
WARNINGS.

     IF THREATENING WEATHER APPROACHES YOU...MOVE INDOORS.  IF CAUGHT
OUTDOORS...STAY AWAY FROM METAL OBJECTS AND ISOLATED TALL TREES.

SP

Special weather statement, Aug 27, 7:15 PM EDT, 3 hours 34 minutes before

PAZ067>071-NJZ015-280010-

SPECIAL WEATHER STATEMENT...TSTMS
NATIONAL WEATHER SERVICE PHILADELPHIA PA/MT HOLLY NJ
700 PM EDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WARNING FOR MERCER COUNTY NEW JERSEY TILL 720 PM...
...THUNDERSTORMS MOVING INTO SOUTHEAST PENNSYLVANIA...

     AT 7 PM WEATHER SERVICE DOPPLER RADAR SHOWED A LINE OF VERY
STRONG THUNDERSTORMS MOVING SOUTH THROUGH MERCER COUNTY NEW JERSEY.
SOME OF THESE THUNDERSTORMS MAY CONTAIN GUSTY WINDS OF OVER 55 MPH AND
LARGE HAIL.  HEAVY RAIN IS ALSO LIKELY WITH THIS LINE.

     IN SOUTHEAST PENNSYLVANIA...DOPPLER RADAR SHOWED A VERY STRONG
THUNDERSTORM IN SOUTHERN CHESTER COUNTY.  THERE WERE OTHER SHOWERS
AND THUNDERSTORMS IN THE EXTREME NORTH AND NORTHWEST PARTS OF
CHESTER COUNTY...AS WELL AS IN WESTERN MONTGOMERY COUNTY AND NEAR THE
DELAWARE RIVER IN SOUTHERN BUCKS COUNTY.

     ALL THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE SOUTH OR
SOUTHEAST AT AROUND 15 MPH.

     SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED IN SOUTHEAST
PENNSYLVANIA AND ADJACENT PARTS OF SOUTHERN NEW JERSEY BETWEEN 7 AND 8 PM.

     SOME OF THE THUNDERSTORMS THAT OCCUR IN SOUTHEAST PENNSYLVANIA
AND SOUTHERN NEW JERSEY THIS EVENING MAY CONTAIN LOCALLY HEAVY RAIN...
STRONG GUSTY WINDS...AND HAIL.  LISTEN TO NOAA WEATHER RADIO OR YOUR
LOCAL RADIO OR TV STATION FOR THE LATEST INFORMATION AND FOR POSSIBLE
WARNINGS.

     IF THREATENING WEATHER APPROACHES YOU...MOVE INDOORS.  IF CAUGHT
OUTDOORS...STAY AWAY FROM METAL OBJECTS AND ISOLATED TALL TREES.

SP

Special weather statement, Aug 27, 7:43 PM EDT, 3 hours 6 minutes before

DEZ001-280130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON DE
743 PM EDT SAT AUG 27 1994

...THUNDERSTORM MOVING TOWARD NORTHERN DELAWARE...

WEATHER SERVICE RADAR SHOWED A THUNDERSTORM OVER SOUTHERN CHESTER COUNTY
IN SOUTHEASTERN PENNSYLVANIA.  THIS THUNDERSTORM WAS MOVING SOUTHEAST AT
15 MPH AND WILL BE MOVING INTO NORTHERN NEW CASTLE COUNTY AROUND 800 PM
EDT THIS EVENING.

THIS THUNDERSTORM MAY CONTAIN LOCALLY HEAVY RAIN...BRIEF GUSTY WINDS AND
DANGEROUS CLOUD TO GROUND LIGHTNING.  PERSONS ACROSS NEW CASTLE COUNTY
THIS EVENING ENJOYING OUTDOOR ACTIVITIES SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER...AND SEEK SAFE SHELTER IMMEDIATELY.  PERONS SHOULD
STAY AWAY FROM WINDOWS AND AVOID USING ELECTRICAL APPLIANCES...INCLUDING
THE TELEPHONE UNTIL THE STORM HAS PASSED

VAUGHAN

Special weather statement, Aug 27, 10:03 PM EDT, 46 minutes before

PAZ067-068-280305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHILADELPHIA PA/MT HOLLY NJ
1003 PM EDT SAT AUG 27 1994

A DEVELOPING THUNDERSTORM CENTERED JUST SOUTH OF POTTSTOWN
PENNSYLVANIA WAS MOVING SOUTHEAST AT ROUGHLY 15 MPH ALONG THE BORDER
OF CHESTER AND MONTGOMERY COUNTIES.  THIS THUNDERSTORM MAY PRODUCE
LOCALLY HEAVY RAIN...STRONG WINDS...AND FREQUENT LIGHTNING.

AS WITH ANY POTENTIALLY DANGEROUS STORM...MONITORING YOUR LOCAL
MEDIA OR NOAA WEATHER RADIO IS ADVISED.  IF THREATENING WEATHER SHOULD
APPROACH...SEEK SHELTER INDOORS IMMEDIATELY.  DO NOT DRIVE INTO
FLOODED ROADWAYS...THE WATER MAY BE DEEPER THAN YOU THINK.

LORENTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 11:25 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic	65 min
Aug 27, 11:46 PM EDT	Flash Flood Warning	PHI	Gloucester	74 min
Aug 27, 11:48 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	42 min
Aug 28, 12:50 AM EDT	Severe Thunderstorm Warning	PHI	Ocean	25 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1994 Every 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.