Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 98, NWS Cleveland, OH

July 26, 1993Elk County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jul 26, 1993, 3:42 PM EDT for Elk County, Pennsylvania. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Jul 26, 1993, 3:42 PM EDT (19:42 UTC)
Expired
Jul 26, 1993, 4:45 PM EDT
In force
63 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Elk County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.7 hours before the alert went out and 166 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, Pittsburgh, PA at 12:00Z on 1993-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1278 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1993-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.193958Sfc1 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
1278 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KERI 261944
SVRCLE
PAC047-262045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ERIE PA
342 PM EDT MON JUL 26 1993
 
THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN NORTHWEST PENNSYLVANIA
 
   ...ELK COUNTY
 
AT 330 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR KANE IN
SOUTHWEST MCKEAN COUNTY MOVING INTO NORTHERN ELK COUNTY.
 
THIS SEVERE THUNDERSTORM CAUSED DAMAGE WEST OF THE BRADFORD AIRPORT WITH
NUMEROUS LARGE TREES AND POWERLINES REPORTED DOWNED ARUOND 310 PM.
 
THIS SEVERE STORM IS MOVING SOUTHEAST AT 30 MILES AN HOUR.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
 
 
&

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 26, 1:39 PM EDT, 2 hours 3 minutes before
OHZ004-PAZ003-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
139 PM EDT MON JUL 26 1993

A STRONG THUNDERSTORM WAS MOVING THROUGH NORTHEASTERN MERCER
COUNTY THIS AFTERNOON.

AT 135 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM IN NORTHEAST MERCER COUNTY. THIS STORM WAS MOVING
SOUTHEAST AT 25 MPH AND SHOULD MOVE INTO VENANGO COUNTY BY 200 PM.

THIS STORM MAY PRODUCE WIND GUSTS TO 40 MPH...FREQUENT LIGHTNING AND
SMALL HAIL. PEOPLE IN THE PATH OF THIS STORM SHOULD STAY TUNED TO NOAA
WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES.

WILKINSON
Special weather statement, Jul 26, 1:40 PM EDT, 2 hours 2 minutes before
OHZ004-PAZ003-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
139 PM EDT MON JUL 26 1993

A STRONG THUNDERSTORM WAS MOVING THROUGH NORTHEASTERN MERCER
COUNTY THIS AFTERNOON.

AT 135 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM IN NORTHEAST MERCER COUNTY. THIS STORM WAS MOVING
SOUTHEAST AT 25 MPH AND SHOULD MOVE INTO VENANGO COUNTY BY 200 PM.

THIS STORM MAY PRODUCE WIND GUSTS TO 40 MPH...FREQUENTd LIGHTNING AND
SMALL HAIL. PEOPLE IN THE PATH OF THIS STORM SHOULD STAY TUNED TO NOAA
WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES.

WILKINSON
Special weather statement, Jul 26, 1:48 PM EDT, 1 hour 54 minutes before
OHZ004-PAZ003-261830-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
148 PM EDT MON JUL 26 1993

A STRONG THUNDERSTORM WAS MOVING THROUGH NORTHEASTERN MERCER
COUNTY THIS AFTERNOON.

AT 135 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM IN NORTHEAST MERCER COUNTY. THIS STORM WAS MOVING
SOUTHEAST AT 25 MPH AND SHOULD MOVE INTO VENANGO COUNTY BY 200 PM.

THIS STORM MAY PRODUCE WIND GUSTS TO 40 MPH...FREQUENT LIGHTNING AND
SMALL HAIL. PEOPLE IN THE PATH OF THIS STORM SHOULD STAY TUNED TO NOAA
WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES.

WILKINSON

...CORRECTED TO FIX VALID TIMES...
Special weather statement, Jul 26, 1:48 PM EDT, 1 hour 54 minutes before
OHZ004-PAZ003-261830-

SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
148 PM EDT MON JUL 26 1993

A STRONG THUNDERSTORM WAS MOVING THROUGH NORTHEASTERN MERCER
COUNTY THIS AFTERNOON.

AT 135 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG
THUNDERSTORM IN NORTHEAST MERCER COUNTY. THIS STORM WAS MOVING
SOUTHEAST AT 25 MPH AND SHOULD MOVE INTO VENANGO COUNTY BY 200 PM.

THIS STORM MAY PRODUCE WIND GUSTS TO 4z0 MPH...FREQUENT LIGHTNING AND
SMALL HAIL. PEOPLE IN THE PATH OF THIS STORM SHOULD STAY TUNED TO NOAA
WEATHER RADIO AND LOCAL MEDIA FOR FURTHER UPDATES.

WILKINSON

...CORRECTED TO FIX VALID TIMES...
Special weather statement, Jul 26, 3:07 PM EDT, 35 minutes before
OHZ004-007-262030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AKRON CANTON OH
306 PM EDT  MON JUL 26 1993

THUNDERSTORMS WERE DROPPING HEAVY RAINS OVER EAST-CENTRAL OHIO THIS
AFTERNOON.

RADAR AT 300 PM INDICATED AN AREA OF STRONG THUNDERSTORMS FROM 10 MILES
SOUTH OF CAMBRIDGE TO 15 MILES NORTHWEST OF GALIPOLIS.

THESE STORMS WERE MOVING SOUTHEAST AT 25 MPH AND WILL BE CROSSING NOBLE
...MONROE AND WASHINGTON COUNTIES BETWEEN 300 AND 430 PM.

THOSE ALONG THEIR PATH CAN EXPECT BRIEF HEAVY DOWNPOURS...WIND GUSTS TO
ABOUT 40 MPH AND POSSIBLY SMALL HAIL.

SHOULD CONDITIONS BECOME THREATENING...MOVE TO A PLACE OF SAFETY UNTIL
THE STORMS HAVE PASSED.
RLB
Special weather statement, Jul 26, 3:07 PM EDT, 35 minutes before
OHZ004-007-262030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AKRON CANTON OH
306 PM EDT  MON JUL 26 1993

THUNDERSTORMS WERE DROPPING HEAVY RAINS OVER EAST-CENTRAL OHIO THIS
AFTERNOON.

RADAR AT 300 PM INDICATED AN AREA OF STRONG THUNDERSTORMS FROM 10 MILES
SOUTH OF CAMBRIDGE TO 15 MILES NORTHWEST OF GALIPOLIS.

THESE STORMS WERE MOVING SOUTHEAST AT 25 MPH AND WILL BE CROSSING NOBLE
...MONROE AND WASHINGTON COUNTIES BETWEEN 300 AND 430 PM.

THOSE ALONG THEIR PATH CAN EXPECT BRIEF HEAVY DOWNPOURS...WIND GUSTS TO
ABOUT 40 MPH AND POSSIBLY SMALL HAIL.

SHOULD CONDITIONS BECOME THREATENING...MOVE TO A PLACE OF SAFETY UNTIL
THE STORMS HAVE PASSED.
RLB

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 2:09 PM EDTSevere Thunderstorm WarningCLEWarren66 min
Jul 26, 3:07 PM EDTSevere Thunderstorm WarningCLEMcKean68 min
Jul 26, 4:22 PM EDTSevere Thunderstorm WarningCLECameron68 min
Jul 26, 4:36 PM EDTSevere Thunderstorm WarningCLEForest69 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1993Every severe thunderstorm warning in 1993

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.