Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 28, NWS Cleveland, OH

June 18, 1990Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 18, 1990, 5:54 AM EDT for Erie County, Pennsylvania. It was in force for 66 min. 2 reports 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
Jun 18, 1990, 5:54 AM EDT (09:54 UTC)
Expired
Jun 18, 1990, 7:00 AM EDT
In force
66 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Erie 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

TimeReportWhereRemark
Jun 18, 6:25 AM EDTThunderstorm Wind 0Erie, PA
Jun 18, 6:35 AM EDTHail 0.75Erie, 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 9.9 hours before the alert went out and 146 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 1990-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 916 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 1990-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
916 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1362 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
293 m²/s²
Significant tornado parameter
0.4
Supercell composite
6.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KERI 180954
SVRERI
PAC049-181100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ERIE PA
554 AM EDT MON JUN 18 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 700 AM EDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTHWEST PART OF PENNSYLVANIA
      ERIE

AT 645AM EDT THIS MON MORNING A SEVERE THUNDERSTORM WAS APPROACHING
THE CITY OF LAKE CITY IN WESTERN ERIE COUNTY.
THIS THUNDERSTORM WAS MOVING EAST SOUTHEAST AT 25 MILES AN HOUR.

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 THUNDER'STORMS.

SMALL BOATERS ON LAKE ERIE AND PREQUE ISLE BAY SHOULD SEEK SAFE
HARBOR IF THREATENING WEATHER APPROACHES.

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, Jun 18, 12:38 AM EDT, 5 hours 16 minutes before
OHZALL-180545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1237 AM EDT MON JUN 18 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME SOUTHWEST OHIO
UNTIL 5 AM EDT.

AT 1220 AM WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM
INDIANAPOLIS INDIANA EXTENDING SOUTHWEST INTO SOUTHERN ILLINOIS.
THE STORMS WERE MOVING EAST AT 30 TO 35 MPH AND WILL REACH THE
SOUTHWEST OHIO BORDER AROUND 2AM. HEAVY RAINS... FREQUENT LI
GHTNING
AND GUSTY WINDS HAVE BEEN REPORTED.

PEOPLE LIVING IN SOUTHWEST OHIO SHOULD STAY TUNED TO NOAA WEATHER RADIO
OR YOUR LOCAL NEWS MEDIA FOR THE LATEST STATEMENTS AND WARNINGS... AND
BE PREPARED TO TAKE APPROPRIATE ACTION.

SJN
Special weather statement, Jun 18, 1:51 AM EDT, 4 hours 3 minutes before
OHZALL-180645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
150 AM EDT MON JUN 18 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME SOUTHWEST OHIO
UNTIL 5 AM EDT.

AT 140 AM WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM
40 MILES WEST OF DAYTON TO 25 MILES NORTHWEST OF CINCINNATI AND
CONTINUING SOUTHWEST TO NEAR EVANSVILLE INDIANA. THE LINE WAS MOVING
SOUTHEAST AT 30 MPH AND WILL MOVE INTO THE CINCINNATI AREA BETWEEN
2 AND 3 AM. HEAVY RAINS... FREQUENT LIGHTNING AND GUSTY WINDS HAVE
BEEN REPORTED WITH THESE STORMS.

PEOPLE LIVING IN SOUTHWEST OHIO SHOULD STAY TUNED TO NOAA WEATHER RADIO
OR YOUR LOCAL NEWS MEDIA FOR THE LATEST STATEMENTS AND WARNINGS.^.. AND
BE PREPARED TO TAKE APPROPRIATE ACTION.

SJN
Special weather statement, Jun 18, 2:51 AM EDT, 3 hours 3 minutes before
OHZALL-180750-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
250 AM EDT MON JUN 18 1990

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME SOUTHWEST OHIO
UNTIL 5 AM EDT.

AT 245 AM WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS FROM
25 MILES WEST OF DAYTON TO CINCINNATI AND CONTINUING SOUTHWEST TO
EANSVILLE INDIANA. THE LINE WAS MOVING SOUTHEAST AT 35 MPH AND WAS
BEGINING TO WEAKEN. HOWEVER... FREQUENT LIGHTNING AND GUSTY WINDS HAVE
BEEN REPORTED WITH THESE STORMS.

PEOPLE LIVING IN SOUTHWEST OHIO SHOULD STAY TUNED TO NOAA WEATHER RADIO
OR YOUR LOCAL NEWS MEDIA FOR THE LATEST STATEMENTS AND WARNINGS... AND
BE PREPARED TO TAKE APPROPRIATE ACTION.

SJN
Special weather statement, Jun 18, 3:22 AM EDT, 2 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
320 AM EDT MON JUN 18 1990

SEVERE THUNDERSTORM WATCH NUMBER 485 HAS BEEN CANCELLED.
THE WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES...

...MIAMI VALLEY...
PREBLE

...SOUTHWEST...
BUTLER          HAMILTON

SJN
Special weather statement, Jun 18, 5:19 AM EDT, 35 minutes before
OHZALL-191200-

SEVERE WEATHER OUTLOOK FOR OHIO
NATIONAL WEATHER SERVICE CLEVELAND OH
520 AM EDT MON JUN 18 1990

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT
THERE IS A SLIGHT CHANfCE OF SEVERE THUNDERSTORMS IN SOUTHEAST OHIO TODAY.
NO SEVERE THUNDERSTORMS ARE EXPECTED IN OHIO TONIGHT.

SJN
Special weather statement, Jun 18, 5:30 AM EDT, 24 minutes before
PAZ001-002-181100
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ERIE, PA
530 AM EDT MON JUN 18 1990

...A LINE OF STRONG THUNDERSTORMS ARE HEADED FOR NORTHWEST PENNSYLVANIA
AND  THE PENNSYLVANIA WATERS OF LAKE ERIE...

AT 530 AM ERIE WEATHER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
SITUATED FROM ASHTABULA COUNTY IN OHIO AND EXTENDING NORTH ACROSS LAKE
ERIE INTO THE PORT BURWELL AND LONG POINT AREAS.

THE LINE WAS MOVING TO THE EAST AT AROUND 45 TO 50 MILES AND HOUR AND
WILL BE MOVING INTO PARTS OF NORTHWEST PENNSYLVANIA AND THE PENNSYLVANIA
WATERS OF LAKE ERIE...BETWEEN 545 AND 600 AM THIS MORNING.

SOME OF THESE STORMS MAY PRODUCE VERY HEAVY RAIN...STRONG AND GUSTY WINDS
AND HAIL.
SANDSTROM

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 6:53 AM EDTSevere Thunderstorm WarningCLEErie82 min
Jun 18, 9:08 AM EDTSevere Thunderstorm WarningCLEMcKean67 min
Jun 18, 10:36 AM EDTFlash Flood WarningCLEElk, McKean3 hr
Jun 18, 11:14 AM EDTFlash Flood WarningCLEPotter61 min
Jun 18, 11:14 AM EDTSevere Thunderstorm WarningCLEPotter61 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.