Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 90, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jul 8, 1986, 5:25 PM EDT for Venango County, Pennsylvania. It was in force for 65 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
- Jul 8, 1986, 5:25 PM EDT (21:25 UTC)
- Expired
- Jul 8, 1986, 6:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Venango County, PA
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 |
|---|---|---|---|
| Jul 8, 5:45 PM EDT | Thunderstorm Wind 0 | Venango, PA |
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
Pittsburgh, PA (KPIT), launched 12:00Z, 9.4 hours before the alert went out and 114 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
- 327 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 893 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 73 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 KERI 082125 RRA SVRERI PAC121-082230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ERIE PA 525 PM EDT TUE JUL 8 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTHWEST PENNSYLVANIA...VENANGO AT 520 PM EDT TUESDAY JULY 8 WEATHER RADAR SHOWED A SEVERE THUNDERSTORM IN NORTHWEST VENANGO COUNTY MOVING TO THE SOUTHEAST AT 25 MILES PER HOUR. THIS SLOW MOVING THUNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS AND UNDERPASSES
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 8, 12:46 PM EDT, 4 hours 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1245 PM EDT TUE JUL 8 1986
AT 1240 PM, RADAR INDICATED AN AREA OF VERY STRONG THUNDERSTORMS OVER
STARK COUNTY.
THESE THUNDERSTORMS HAVE PRODUCED SMALL HAIL, BRIEF STRONG WINDS, AND
DANGEROUS CLOUD TO GROUND LIGHTNING. PEOPLE IN COLUMBIANA COUNTY
SHOULD REMAIN INDOORS AS THESE THUNDERSTORMS MOVE THROUGH.
THE THUNDERSTORMS WERE MOVING EAST SOUTHEAST AT 20 TO 25 MPH.
DOX^EY/MCMULLEN
[Special weather statement, Jul 8, 3:24 PM EDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
324 PM EDT TUE JUL 8 1986
AT 320 PM RADAR INDICATED SCATTERED THUNDERSTORMS MOVING THROUGH
MAHONING AND COLUMBIANA COUNTIES.
THESE THUNDERSTORMS COULD PRODUCE SMALL HAIL, GUSTY WINDS, HEAVY RAIN,
AND FREQUENT LIGHTNING.
THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 TO 25 MPH.
PEOPLE IN MAHONING AND COLUMBIANA COUNTIES SHOULD BE PREPARED TO MOVE
TO A SAFE PLACE IF WEATHER LOOKS THREATENING.
MCMULLEN/DOXEY
[Special weather statement, Jul 8, 3:45 PM EDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 345 PM EDT TUE JUL 8 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 PM EDT FOR ABOUT THE WESTERN THIRD OF OHIO. RADAR AT 340 PM INDICATED NO THUNDERSTORMS FOR THE WATCH AREA IN OHIO. HOWEVER, A WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS TO DEVELOP SO BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. MORAVEK
Special weather statement, Jul 8, 4:36 PM EDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
436 PM EDT TUE JUL 8 1986
HEAVY THUNDERSTORMS CONTINUE TO MOVE THROUGH COLUMBIANA COUNTY.
AT 425 PM THE DISASTER SERVICE AGENCY REPORTED DOWNED POWER LINES AND
HEAVY RAIN IN EAST LIVERPOOL. HEAVY RAIN AND FREQUENT LIGHTNING WAS
ALSO REPORTED IN LISBON.
AT 430 PM RADAR INDICATED SCATTERED THUNDERSTORMS OVER STARK AND
COLUMBIANA COUNTIES. THESE THUNDERSTORMS WERE MOVING SOUTHEAST AT
20 TO 25 MPH.
PEOPLE IN COLUMBIANA COUNTY CAN EXPECT SMALL HAIL, GUSTY WINDS, HEAVY
RAIN AND DANGEROUS LIGHTNING AS THE THUNDERSTORMS MOVE THROUGH.
DOXEY
[Special weather statement, Jul 8, 4:50 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT AND EVENING OHIO WEATHER STORY NATIONAL WEATHER SERVICE CLEVELAND OH 450 PM EDT TUE JUL 8 1986 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME WEST AND NORTHWEST COUNTIES OF OHIO UNTIL 10 PM EDT. THE POTENTIAL FOR THE DEVELOPMENT OF STRONG THUNDERSTORMS REACHING SEVERE CRITERIA ARE FAVORABLE OVER AN AREA FROM CHICAGO TO DETROIT AND SOUTH ACROSS CENTRAL INDIANA AND EXTREME WESTERN OHIO. LATE THIS AFTERNOON SEVERAL CLUSTERS OF THUNDERSTORMS HAD DEVELOPED OVER PARTS OF INDIANA AND NORTHEASTERN ILLINOIS, AND COULD REACH INTO OHIO THIS EVENING. A FEW THUNDERSTORMS DEVELOPED OVER EASTERN OHIO THIS AFTERNOON, SOME OF WHICH HAD APPROACHED SEVERE LIMITS. SMALL HAIL AND GUSTY WINDS WERE REPORTED OVER PORTIONS OF COLUMBIANA COUNTY AND VICINITY. MUCH OF TODAY'S ACTIVITY WAS OVER EASTERN OHIO AND WESTERN PENNSYLVANIA, EAST OF AN AKRON-MASSILLION LINE. NEARLY THREE-QUARTERS /.70/ OF AN INCH OF RAIN WAS REPORTED AT YOUNGSTOWN THROUGH 2PM. < HOT, HUMID AND HAZY CONTINUED TO DESCRIBE THE WEATHER ELEMENTS OVER MUCH OF OHIO TODAY. AFTERNOON TEMPERATURES REACHED INTO THE 90 TO 95 DEGREE RANGE UNDER A BLAZING SUN OVER THE SOUTHERN HALF OF THE STATE, WHILE MID TO UPPER 80S WERE FELT IN THE NORTHERN HALF. THE GREATEST POTENTIAL FOR SHOWERS AND THUNDERSTORMS WILL BE TONIGHT THROUGH WEDNESDAY. A WEAK FRONTAL SYSTEM NORTH OF THE STATE WAS ALLOWING FOR THE WARM HUMID AIR TO SETTLE OVER NOT ONLY OHIO, BUT OVER MUCH OF THE REGION. HOWEVER, THE FRONT WILL SLOWLY SLIDE SOUTH ACROSS OHIO LATE TONIGHT AND WEDNESDAY, BRINGING IN DRIER AND SLIGHTLY COOLER AIR BY THURSDAY. ROG
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1986Every severe thunderstorm warning in 1986
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.