Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 63, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jul 9, 1990, 1:50 PM EDT for Venango County, Pennsylvania. It was in force for 70 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 9, 1990, 1:50 PM EDT (17:50 UTC)
- Expired
- Jul 9, 1990, 3:00 PM EDT
- In force
- 70 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 9, 2:10 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, 5.8 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
- 1312 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1037 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KERI 091750
SVRERI
PAC121-091900-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ERIE PA
150 PM EDT MON JUL 9 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND FLASH FLOOD WARNING EFFECTIVE UNTIL 300 PM EDT FOR PEOPLE
IN THE FOLLOWING COUNTY
IN THE NORTHWEST PART OF PENNSYLVANIA
VENANGO
AT 145 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHEAST
MERCER COUNTY. THIS STORM WAS MOVING TO THE EAST SOUTHEAST AT 30
MILES AN HOUR AND WILL MOVE INTO VENANGO CO BY 200 PM EDT. THIS
PATH OF MOVEMENT WILL TAKE THE STORM TOWARD FRANKLIN IN VENANGO
CO.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE 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..K.VERY HEAVY RAIN AND DANGEROUS
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING NOW OR IS
IMMINENT. TAKE COVER ON HIGHER GROUND IF FLOOD WATERS APPROACH
YOUR AREA.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
Local storm report, Jul 9, 11:43 AM EDT, 2 hours 7 minutes before
STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE ERIE, PA
1133 AM EDT MON JUL 09 1990
STORM REPORT FOR JULY 5, 1990 CORRECTED FOR TIMES AND UPDATED
TIME EDT EVENT
0025 EDT DIME SIZE HAIL AND TREES AND LIMBS DOWN NEAR PENNISULA
RD IN CITY OF ERIE, ERIE CO PA. BY SKYWARN.
0043 EDT POWERS LINES DOWN E. 28TH ST AND BURTON IN CITY OF
ERIE IN ERIE CO PA. SKYWARN.
0110 EDT POWER LINES AND TREES DOWN NEAR BUFFALO RD TO PEACH
ST IN CITY OF ERIE, ERIE CO PA. SKYWARN
0112 EDT NUMEROUS REPORTS OF DIME SIZE TO 3/4 INCH HAIL NEAR
RT I90 AND RT 430 NEAR ERIE IN ERIE CO. PA. SKYWARN.
END
[Special weather statement, Jul 9, 12:28 PM EDT, 1 hour 22 minutes before
OHZ004-PAZ003-071800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 1228 PM EDT MON JUL 9 1990 FLASH FLOOD WATCH FOR MERCER AND LAWRENCE COUNTY UNTIL 300 PM EDT. AT 1215 PM EDT NATIONAL WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS RUNNING WEST TO EAST FROM NORTH OF WARREN OHIO TO NORTH OF DUBOIS PENNSYLVANIA. THE STONGEST CELLS ARE OVER NORTHERN MERCER COUNTY PENNSYLVANIA. MOVEMENT OF THESE STORMS WAS EAST SOUTHEAST AT 30O MPH. THESE STORMS CAN PROUDUCE LOCALLY HEAVY RAIN AND DANGEROUS LIGHTNING. RAINFALL AMOUNTS OF 1.5 INCHES IN A COUPLE OF HOURS HAVE BEEN REPORTED WITH THESE STORMS. SITES
Special weather statement, Jul 9, 12:29 PM EDT, 1 hour 21 minutes before
OHZ006-011-091930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 1230 PM EDT MON JUL 9 1990 AT 1225 PM NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS...SOME WITH VERY HEAVY RAIN AND FREQUENT CLOUD TO GROUND LIGHTNING... EXTENDING ACROSS NORTHERN ASHLAND AND NORTHERN RICHLAND COUNTY TO THE CENTRAL PART OF CRAWFORD COUNTY. THEY THUNDERSTORMS WERE MOVING SLOWLY TO THE SOUTHEAST AT ABOUT 25 MPH. THESE THURNDERSTORMS WILL LIKELY POUND THE CENTRAL HIGHLANDS UNTIL 2PM EDT. STRONG GUSTY WINDS AND PONDING OF WATER IS LIKELY. BE PREPARD TO MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. BANYAS
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 12:48 PM EDT | Flash Flood Warning | CLE | Venango | 57 min |
| Jul 9, 12:48 PM EDT | Severe Thunderstorm Warning | CLE | Venango | 57 min |
| Jul 9, 1:40 PM EDT | Severe Thunderstorm Warning | CLE | Lawrence | 50 min |
| Jul 9, 1:50 PM EDT | Flash Flood Warning | CLE | Venango | 70 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.