Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 103, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jul 20, 1986, 12:47 PM EDT for Forest County, Pennsylvania. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1986, 12:47 PM EDT (16:47 UTC)
- Expired
- Jul 20, 1986, 1:45 PM EDT
- In force
- 58 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Forest County, PA
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
Pittsburgh, PA (KPIT), launched 12:00Z, 4.8 hours before the alert went out and 142 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
- 1369 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 938 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 52 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 201647 SVRERI PAC053-201745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ERIE PA 1247 PM EDT SUN JUL 20 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 145 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTHWEST PENNSYLVANIA...FOREST AT 1215 PM ERIE WEATHER RADAR SHOWED SEVERE THUNDERSTORMS MOVING SOUTHEASTWARD FROM WARREN COUNTY TOWARDS FOREST COUNTYy. THIS STORM IS ACCOMPANIED BY INTENSE LIGHTNING AND STRONG GUSTY WINDS. THESE STORMS HAVE BEEN CAUSING VERY HEAVY DOWNPOURS AND FLOODING WILL OCCUR.
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 20, 7:36 AM EDT, 5 hours 11 minutes before
SEVERE WEATHER OUTLOOK FOR OHIO NATIONAL WEATHER SERVICE CLEVELAND OH 735 AM EDT SUN JUL 20 1986 THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT THERE IS A SLIGHT CHANCE OF SEVdERE THUNDERSTORMS FOR EXTREME EASTERN OHIO TODAY. SEVERE THUNDERSTORMS ARE NOT EXPECTED IN OHIO TONIGHT. RJM
Special weather statement, Jul 20, 12:45 PM EDT, 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1240 PM EDT SUN JUL 20 1986
INTENSE THUNDERSTORMS WERE DEVELOPING OVER MERCER COUNTY PA.
AT 1235 PM WEATHER SERVICE RADAR SHOWED AN AREA OF INTENSE THUNDERSTORMS
DEVELOPING FROM FROM NEAR SHARON NORTHEAST ACROSS MERCER COUNTY INTO
NORTHWEST VENANGO COUNTY. THESE STORMS ARE MOVING EAST SOUTHEAST AT
25 MPH.
THESE STORMS WILL CONTAIN VERY HEAVY RAIN, HAIL, AND DANGEROUS LjIGHTNING.
PEOPLE IN MERCER COUNTY SHOULD BE PREPARED TO MOVE TO SHELTER IF THREATENING
WEATHER APPROACHES.
TAYLOR
[The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 10:38 AM EDT | Severe Thunderstorm Warning | CLE | Warren | 82 min |
| Jul 20, 12:03 PM EDT | Severe Thunderstorm Warning | CLE | McKean, Warren | 57 min |
| Jul 20, 12:12 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 78 min |
| Jul 20, 1:38 PM EDT | Severe Thunderstorm Warning | CLE | Cameron, Elk, McKean | 52 min |
| Jul 20, 1:38 PM EDT | Severe Thunderstorm Warning | CLE | Forest, Venango, Warren | 52 min |
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; the sounding from the Mesonet's radiosonde archive.