Alert archive / Ohio / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 112, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Sep 29, 1990, 5:14 PM EDT for Clark County, Ohio. It was in force for 61 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
- Sep 29, 1990, 5:14 PM EDT (21:14 UTC)
- Expired
- Sep 29, 1990, 6:15 PM EDT
- In force
- 61 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Clark County, OH
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 |
|---|---|---|---|
| Sep 29, 5:30 PM EDT | Hail 1.5 | Clark, OH |
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
Dayton/James M C, OH (KDAY), launched 12:00Z, 9.2 hours before the alert went out and 36 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
- 37 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 1185 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Sep 29, 4:37 PM EDT, 37 minutes before
OHZ005-010-292135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DAYTON OH 435 PM EDT SAT SEP 29 1990 THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER MONTGOMERY AND MIAMI COUNTIES OF WESTERN OHIO AT 435 PM EDT. AT 435 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED A THUNDERSTORM WITH VERY HEAVY RAIN...STRONG GUSTY WINDS...AND POSSIBLY SMALL HAIL JUST NORTH OF THE DAYTON AIRPORT NEAR TIPP CITY OHIO. THIS THUNDERSTORM PRODUCED A WIND GUST OF 44 MPH AT THE DAYTON AIRPORT AT 423 PM EDT. THE STORM WAS MOVING SOUTHEAST AT 15 MPH...AND SHOULD MOVE ACROSS THE CITIES OF DAYTON AND SPRINGFIELD BETWEEN 500 AND 530 PM. PEOPLE IN WESTERN OHIO SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDIT5IONS...AND BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROACHES. . HARLEY
Special weather statement, Sep 29, 4:38 PM EDT, 36 minutes before
OHZ008-INZ013-KYZ005-292140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE CINCINNATI OH 437 PM EDT SAT SEP 29 1990 AT 430 THIS EVENING WEATHER SERVICE RADAR SHOWED THE RAPID DEVELOPMENT OF A LINE OF THUNDERSTORMS OVER SOUTHWEST OHIO AND SOUTHEAST INDIANA. THE LINE OF STORMS WAS FROM DAYTON OHIO TO CINCINNATI... THEN EXTENDED SOUTHWEST TO LOUISVILLE KENTUCKY. NO MOVEMENT HAS YET BEEN DETERMINED. AS THESE STORMS CONTIN8UE TO DEVELOP IN AND AROUND THE CINCINNATI TRISTATE AREA... YOU CAN EXPECT LOCALLY HEAVY RAIN...FREQUENT LIGHTNING...SMALL HAIL AND GUSTY THUNDERSTORM WINDS. MANUEL
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 5:20 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 55 min |
| Sep 29, 6:40 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Highland | 65 min |
| Sep 29, 6:22 PM EDT | Severe Thunderstorm Warning | ILN | Boone, Kenton | 53 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.