Alert archive / Ohio / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 12, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Apr 9, 1999, 5:18 AM EDT for Clermont County, Ohio. It was in force for 47 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
- Apr 9, 1999, 5:18 AM EDT (09:18 UTC)
- Expired
- Apr 9, 1999, 6:05 AM EDT
- In force
- 47 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Clermont County, OH
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 5:49 AM EDT | Thunderstorm Wind 50 | Countywide, OH | Several large trees were downed in the northern section of the county. |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 9, 3:00 AM EDT | Tornado Watch | SPC | 5 hr |
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.
NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 9:25 PM EDT, 7 hours 53 minutes earlier.
Area forecast discussion, Apr 8, 9:25 PM EDT, 7 hours 53 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 925 PM EDT THU APR 8 1999 WARM FRONT CURRENTLY LOCATED FROM IA/MO BORDER TO LAF TO HERE AT ILN. 00Z SNDG SHOWED LI/S -4 AND CAPE OF ABOUT 900 J/KG. MODIFIED SNDG TO INCREASE SFC DWPT AND SLIGHTLY DECREASE SFC TEMP WHICH KEPT LI THE SAME AND INCREASED CAPE TO OVER 1100 J/KG. HELICITES WERE LESS THAN 100 BUT THOSE SHUD INCREASE A LITTLE AS LOW APPROACHES. LINE PUSHING INTO IL SHUD HOLD TOGETHER AND IF IT MAINTAINS CURRENT MOVEMENT...IT WILL MOVE INTO CWA ARND 07Z. THE STRONGEST STORMS WILL LIKELY CONT TO KEEP NEAR THE TRIPLE PT WHICH WOULD BRING THEM INTO SE IN AND SW OH AFTER MID. WITH CURRENT AND FCST PARAMETERS THINK WIND WILL BE THE GREATEST DANGER BUT SOME LARGE HAIL WITH THE STRONGEST STORMS IS NOT OUT OF THE QUESTION. LATEST 94O HAS SE IN AND SW OH IN MOD RISK WITH REST OF AREA IN SLT. NOT AS CONCERNED WITH SVR IN THE ERN AREAS BUT WILL CERTAINLY LEAVE WORDING AS IS. AS FOR TEMPS WILL LEAVE THINGS ALONE AS TEMPS WILL COOL WITH THE RAIN. WARM FRONT SHUD MAKE IT TO ARND I-70 SO WILL LEAVE THE NORTH A LITTLE COOLER AS DWPTS WILL BE LOWER. .ILN...NONE WHITE
The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 4:52 AM EDT | Tornado Warning | ILN | Hamilton | 63 min |
| Apr 9, 5:19 AM EDT | Tornado Warning | ILN | Warren | 61 min |
| Apr 9, 5:36 AM EDT | Severe Thunderstorm Warning | ILN | Champaign | 49 min |
| Apr 9, 5:41 AM EDT | Tornado Warning | ILN | Clinton | 49 min |
| Apr 9, 5:51 AM EDT | Severe Thunderstorm Warning | ILN | Union | 49 min |
| Apr 9, 7:16 AM EDT | Severe Thunderstorm Warning | ILN | Fairfield, Licking | 49 min |
| Apr 9, 11:26 AM EDT | Severe Thunderstorm Warning | ILN | Greene | 34 min |
| Apr 9, 11:50 AM EDT | Severe Thunderstorm Warning | ILN | Madison | 45 min |
| Apr 9, 11:55 AM EDT | Severe Thunderstorm Warning | ILN | Franklin | 65 min |
| Apr 9, 12:28 PM EDT | Severe Thunderstorm Warning | ILN | Licking | 62 min |
| Apr 9, 4:02 AM EDT | Tornado Warning | ILN | Ripley | 48 min |
| Apr 9, 4:26 AM EDT | Tornado Warning | ILN | Dearborn | 34 min |
| Apr 9, 4:47 AM EDT | Severe Thunderstorm Warning | ILN | Owen | 63 min |
| Apr 9, 4:54 AM EDT | Tornado Warning | ILN | Owen | 66 min |
| Apr 9, 5:10 AM EDT | Tornado Warning | ILN | Grant | 50 min |
| Apr 9, 5:25 AM EDT | Tornado Warning | ILN | Pendleton | 35 min |
| Apr 9, 5:45 AM EDT | Severe Thunderstorm Warning | ILN | Bracken | 35 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 1999Every severe thunderstorm warning in 1999
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.