Alert archive / Ohio / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 48, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jun 30, 1990, 10:58 PM EDT for Knox County, Ohio. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 10:58 PM EDT (02:58 UTC)
- Expired
- Jun 30, 1990, 11:45 PM EDT
- In force
- 47 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Knox County, OH
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
Dayton/James M C, OH (KDAY), launched 00:00Z, 3.0 hours before the alert went out and 161 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
- 1260 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 30, 5:31 PM EDT, 5 hours 27 minutes before
INZ013-KYZ005-OHZ008-302245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CINCINNATI OH 533 PM EDT SAT JUN 30 1990 THUNDERSTORMS WITH VERY HEAVY RAIN WERE MOVING THROUGH BUTLER AND HAMILTON COUNTIES OF SOUTHWEST OHIO THIS EVENING AT 520. THESE THUNDERSTORMS ARE CAPIBLE OF PRODUCING BRIEF HEAVY RAIN AND POSSIBLE SMALL HAIL AS THEY PASS TO THE EAST. REPORTS OF PEA SIZE HAIL HAVE BEEN RECEIVED FROM NORTH OF OXFORD OHIO. BE ALERT FOR PONDING OR FLOODING OF LOW LYING AREAS...DO NOT TRY TO CROSS ALREADY FLOODED AREAS. THE STORMS WILL BE MOVING INTO WARREN COUNTY OF SOUTHWEST OHIO WITHIN THE NEXT 30 MINUTES. KEENEY
Special weather statement, Jun 30, 6:24 PM EDT, 4 hours 34 minutes before
OHZ006-302315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS OH 620 PM EDT SAT JUN 30 1990 THUNDERSTORMS WITH HEAVY RAIN...BRIEF GUSTY WINDS...AND LARGE HAIL WERE MOVING INTO SOUTH CENTRAL OHIO THIS EVENING. AT 620 PM RADAR SHOWED AN AREA OF THUNDERSTORMS FROM DAYTON TO WILMINGTON TO HILLSBORO IN SOUTHWEST OHIO. THE THUNDERSTORMS WERE MOVING EAST AT AROUND 20 MILES AN HOUR. THESE STORMS HAD A HISTORY OF PRODUCING SEVERE WEATHER. IN BUTLER COUNTY THEY PRODUCED BASEBALL SIZE HAIL. THEN THEY PRODUCED WIND GUSTS OF 50 TO 60 MPH AND GOLF BALL SIZE HAIL AS THEY MOVED THROUGH WARREN AND GREENE COUNTIES. PEOPLE IN THE COUNTIES OF FAYETTE AND ROSS COUNTIES SHOULD MONITOR RA DIO AND T.V. BROADCASTS CLOSELY THIS EVENING AS THE STORMS MOVE TOWARD YOUR AREA DURING THE NEXT FEW HOURS. RTH
Special weather statement, Jun 30, 6:47 PM EDT, 4 hours 11 minutes before
OHZ008-012330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CINCINNATI OH 645 PM EDT SAT JUN 30 1990 THUNDERSTORMS...HEAVY RAIN...HAIL AND STRONG WINDS CONTINUE OVER PARTS OF SOUTHWEST OHIO AT 640 PM. THE STORMS WERE INDICATED BY THE RADAR AT 640 PM IN CENTRAL AND NORTHERN CLINTON AND NORTHERN BROWN COUNTIES OF SOUTHWEST OHIO. THE STORMS WERE MOVING TO THE EAST 30 MPH. THIS STORM PRODUCED SCATTERED WIND DAMAGE AND LARGE HAIL BETWEEN 530 >AND 630 PM ACROSS PARTS OF BUTLER..WARREN AND CLINTON COUNTIES OF SOUTHWEST OHIO. THE STORMS WILL MOVE THROUGH THE REMAINDER OF CLINTON AND ACROSS HIGHLAND COUNTY BY 730 PM. END JR
Special weather statement, Jun 30, 7:17 PM EDT, 3 hours 41 minutes before
OHZ006-010015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS OH 715 PM EDT SAT JUN 30 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL OHIO UNTIL 10 PM. AT 710 PM RADAR SHOWED SCATTERED THUNDERSTORMS THROUGHOUT CENTRAL OHIO. THE HEAVIEST STORMS WERE IN WESTERN ROSS COUNTY FROM FRANKFORT SOUTH TO BAINBRIDGE. RADAR INDICATED THAT THESE STORMS CONTAINED VERY HEAVY RAIN AND POSSIBLY HAIL. ALTHOUGH NO SEVERE WEATHER IS OCCURING WITH THE STORMS NOW... THEY HAD A HISTORY OF PRODUCING GUSTY WINDS AND LARGE HAIL EARLIER. THE STORMS WERE MOVING EAST AT AROUND 20 MPH AND WILL MOVE THROUGH CHILLICOTHE BY 800 PM. PEOPLE IN CENTRAL OHIO SHOULD BE ON THE LOOK OUT \FOR RAPIDLY CHANGING WEATHER THIS EVENING. STAY TUNED TO NOAA RADIO AND LOCAL BROADCASTS FOR THE LATEST STATEMENTS AND WARNINGS FROM THE NATIONAL WEATHER SERVICE RTH
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:40 PM EDT | Severe Thunderstorm Warning | ILN | Allen | 65 min |
| Jun 30, 9:35 PM EDT | Severe Thunderstorm Warning | ILN | Logan | 40 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 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.