Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 85, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 28, 1990, 9:33 PM EDT for Mercer County, Pennsylvania. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Aug 28, 1990, 9:33 PM EDT (01:33 UTC)
- Expired
- Aug 28, 1990, 10:30 PM EDT
- In force
- 57 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Mercer 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 00:00Z, 1.6 hours before the alert went out and 100 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 KYNG 290138
SVRYNG
PAC085-290230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
933 PM EDT TUE AUG 28 1990
THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTHWEST PENNSYLVANIA
...MERCER
AT 935 PM EDT WEATHER RADAR INDICATED POSSIBLE SEVERE THUNDERSTORMS
MOVING INTO NORTHERN MERCER COUNTY. MOVEMENT OF THESE STORMS WAS
SOUTHEAST AT 30 MPH.
SEVERE THUNDERSTORMS MAY PRODUCE DAMAGING WINDS...LARGE HAIL...
FREQUENT LIGHTNING AND HEAVY RAINS WHICH MAY CAUSE FLOODING.
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONAuLLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
SITESWhat 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 31 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, 21 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, 16 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, 9:31 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Venango | 59 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; the sounding from the Mesonet's radiosonde archive.