Alert archive / Ohio / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 87, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Aug 28, 1990, 8:36 PM EDT for Miami County, Ohio. It was in force for 69 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
- Aug 28, 1990, 8:36 PM EDT (00:36 UTC)
- Expired
- Aug 28, 1990, 9:45 PM EDT
- In force
- 69 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Miami 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 |
|---|---|---|---|
| Aug 28, 8:50 PM EDT | Thunderstorm Wind 0 | Miami, 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 00:00Z, 0.6 hours before the alert went out and 17 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
- 1965 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1458 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 6.6
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, Aug 28, 8:30 PM EDT, 6 minutes before
OHZ006-007-009-011-280230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS OH 830 PM EDT TUE AUG 28 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE NORTHERN TWO THIRDS OF OHIO UNTIL 10 PM EDT. AT 825 PM THE COLUMBUS WEATHER RADAR SHOWED A LARGE AREA OF SHOWERS AND THUNDERSTORMS OVER NORTHERN AND WEST CENTRAL OHIO. THE AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING EAST TO SOUTHEAST AROUND 35 MPH THUNDERSTORMS ARE EXPECTED TO REACH WESTERN MARION AND UNION COUNTIES AROUND 9 PM. THESE THUNDERSTORMS MAY PRODUCE STRONG GUSTY WINDS AND BRIEF HEAVY RAINS. PEOPLE IN CENTRAL OHIO SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR FURTHER STATEMENTS OR WARNINGS. LVW
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 8:15 PM EDT | Severe Thunderstorm Warning | ILN | Darke | 60 min |
| Aug 28, 8:25 PM EDT | Severe Thunderstorm Warning | ILN | Logan | 65 min |
| Aug 28, 8:43 PM EDT | Severe Thunderstorm Warning | ILN | Montgomery, Preble | 62 min |
| Aug 28, 8:53 PM EDT | Severe Thunderstorm Warning | ILN | Clark, Greene | 67 min |
| Aug 28, 9:33 PM EDT | Severe Thunderstorm Warning | ILN | Darke | 57 min |
| Aug 28, 10:33 PM EDT | Severe Thunderstorm Warning | ILN | Butler | 42 min |
| Aug 28, 10:53 PM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 52 min |
| Aug 28, 11:43 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Hamilton | 62 min |
| Aug 28, 11:56 PM EDT | Severe Thunderstorm Warning | ILN | Clermont | 64 min |
| Aug 28, 11:21 PM EDT | Severe Thunderstorm Warning | ILN | Campbell, Kenton | 69 min |
| Aug 29, 12:11 AM EDT | Severe Thunderstorm Warning | ILN | Boone | 64 min |
| Aug 29, 12:28 AM EDT | Severe Thunderstorm Warning | ILN | Gallatin, Grant, Owen | 62 min |
| Aug 28, 10:12 PM EDT | Severe Thunderstorm Warning | ILN | Franklin | 48 min |
| Aug 28, 11:17 PM EDT | Severe Thunderstorm Warning | ILN | Franklin | 43 min |
| Aug 28, 11:31 PM EDT | Severe Thunderstorm Warning | ILN | Dearborn, Ripley | 59 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.