Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 84, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 28, 1990, 9:31 PM EDT for Crawford County, Venango County, Pennsylvania. It was in force for 59 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
- Aug 28, 1990, 9:31 PM EDT (01:31 UTC)
- Expired
- Aug 28, 1990, 10:30 PM EDT
- In force
- 59 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Crawford County, PA, 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 |
|---|---|---|---|
| Aug 28, 9:55 PM EDT | Thunderstorm Wind 0 | Crawford, 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 00:00Z, 1.5 hours before the alert went out and 127 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
- 2368 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1231 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 10.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KERI 290131
SVRERI
PAC039-121-290230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ERIE PA
931 PM EDT TUE AUG 28 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1030 PM EDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE NORTHWEST PART OF PENNSYLVANIA
CRAWFORD...VENANGO
AT 930 PM EDT RADAR INDICATED SEVERE THUNDERSTORMS IN CRAWFORD COUN
TY PA NORTHWEST OF CAMBRIDGE SPRINGS. ANOTHER SEVERE THUNDERSORM
WAS IN THE EXTREME NORTHWEST CORNER OF VENANGO COUNTY PA. NORTHWEST
OF OIL CITY.
THESE STORMS WERE MOVING EAST SOUTHEAST AT 35 MILES AN HOUR.
WHEN THUNDERSTORMS ARE OCCURRING...PEAOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES. MOTORISTS SHOULD AVOID LOW WATER CROSSINGS.
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER IN A NEARBY REINFORCED
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DANGEROUS
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY AND ASK THE NEAREST LAW ENFORCEMENT AGENY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
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 CHA9NGING WEATHER CONDITIONS.
RRWhat 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 28, 5:02 PM EDT, 4 hours 29 minutes before
OHZ001-002-011-282200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOLEDO OH 501 PM EDT TUE AUG 28 1990 THUNDERSTORMS WERE MOVING INTO NORTHWEST OHIO THIS EVENING. AT 455 PM WEATHER RADAR INDICATED THUNDERSTORMS WITH POSSIBLE HAIL LOCATED IN WILLIAMS COUNTY OF NORTHWEST OHIO. THESE STORMS WERE MOVING EAST AT 35 MPH... AND WILL MOVE INTO FULTON AND HENRY COUNTIES BY 530 PM. THIS IS A POTENTIALLY DANGEROUS SITUATION. IF YOU ARE IN NORTHWEST OHIO YOU SHOULD PREPARE FOR SEVERE THUNDERSTORMS WITH HAIL AND DAMAGING WINDS. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS. MURPHY
Special weather statement, Aug 28, 9:12 PM EDT, 19 minutes before
OHZALL-290230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 915 PM EDT TUE AUG 28 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF OHIO EXCEPT THE NORTHWEST AND THE EXTREME SOUTH UNTIL 2 AM. THE WATCH THAT WAS IN EFFECT FOR THE NORTHWEST COUNTIES OF OHIO EARLIER HAS BEEN CANCELED. MAJOR CITIES COVERED BY THE WATCH INCLUDE AKRON... CANTON... CINCINNATI... CLEVELAND... COLUMBUS... DAYTON... AND YOUNGSTOWN. MAJOR CITIES NO LONGER COVERED BY ANY WATCH INCLUDE FINDLAY... LIMA... AND TOLEDO. THUNDERSTORMS CONTINUED TO MOVE ACROSS EXTREME NORTHEAST AND MUCH OF CENTRAL OHIO AT 905 PM. THE STORMS WERE MOVING SOUTHEAST AT 35 MPH... AND HAVE THE POTENTIAL TO PRODUCE /DAMAGING WINDS... LARGE HAIL... AND HEAVY DOWNPOURS. OHIOANS IN THE WATCH AREA SHOULD BE PREPARED FOR SUCH CONDITIONS UNTIL AT LEAST THE EARLY MORNING HOURS. KWIATKOWSKI
Special weather statement, Aug 28, 9:17 PM EDT, 14 minutes before
OHZ006-011-290300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 915 PM EDT TUE AUG 28 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EDT WEDNESDAY MORNING... AT 915 PM EDT WEATHER RADAR SHOWED SCATTERED THUNDERSTORMS OVER NORTH CENTRAL OHIO. THE HEAVIEST THUNDERSTORM WAS OVER WESTERN MORROW COUNTY MOVING SOUTHEAST AT 25 MPH. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY SURFACE ? WINDS AND LOCALLY HEAVY DOWNPOURS. IF SEVERE WEATHER THREATENS BE PREPARED TO MOVE TO A PLACE OF SAFETY. BANYAS
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 8:20 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie, Venango, Warren | 70 min |
| Aug 28, 8:20 PM EDT | Severe Thunderstorm Warning | CLE | Cameron, Elk, Forest, McKean, Potter | 70 min |
| Aug 28, 8:26 PM EDT | Tornado Warning | CLE | Erie | 64 min |
| Aug 28, 9:33 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 57 min |
| Aug 28, 10:26 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 34 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1990Every severe thunderstorm warning in 1990
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.