Alert archive / Ohio / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 103, NWS Wilmington, OH
NWS Wilmington, OH issued this severe thunderstorm warning at Jul 9, 1999, 8:09 PM EDT for Butler County, Ohio. It was in force for 51 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
- Jul 9, 1999, 8:09 PM EDT (00:09 UTC)
- Expired
- Jul 9, 1999, 9:00 PM EDT
- In force
- 51 min
- Issued by
- NWS Wilmington, OH
- Area
- Whole counties
County Butler County, OH
The radar
The Cincinnati radar (KILN), 65 km from the middle of the area, began a volume at 00:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 9, 8:34 PM EDT | Thunderstorm Wind 51 | Hamilton Arpt, OH | Winds gusted to 60 mph at the Hamilton airport. Also, trees and power lines were knocked down. |
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 |
|---|---|---|---|
| Jul 9, 7:30 PM EDT | Severe Thunderstorm 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 Jul 9, 3:42 PM EDT, 4 hours 27 minutes earlier.
Area forecast discussion, Jul 9, 3:42 PM EDT, 4 hours 27 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 342 PM EDT FRI JUL 9 1999 CLEMISILN ALREADY OUT. NGM AND ETA ARE SIMILAR THIS RUN ON TIMING OF COLD FRONT DROPPING ACROSS FA AND 300 JET MAX. NGM DEWPOINTS WERE UNDER DONE AGAIN THIS RUN...PLACING 60 DEWPOINTS WERE 70 WERE OBSERVED. THEREFORE NGM CAPES AND INSTABILITIES ARE WAY UNDERESTIMATED. MEANWHILE ETA IS THE ONLY MODEL WHICH HAS THE TAIL OF THE 850 MB JET MAX ACROSS WV INTO KY. WITH THIS JET...THE ETA PRODUCES A STRONG 850 CONVERGENT AREA AND COMBINES IT WITH THE UPPER LEVEL DIVERGENCE TO PRODUCE A WIDE AREA OF UPPER VELOCITIES. THINK THAT THE ETA MIGHT BE A LITTLE TO AGGRESSIVE WITH THE 850 WINDS...SO WILL TREND TOWARDS THE ETA SOLUTION...POSITION OF THE QPF...BUT WILL TAPER IT DOWN A LITTLE. WILL CONTINUE WITH LIKELY POPS IN THE WEST...BUT WILL GO HIGH CHANCE IN THE EAST...WHERE THE FORCING IS A LITTLE WEAKER. FRONT IS LOCATED FROM SOUTH OF CMH-DAY BY 12Z SATURDAY...SO WILL CONTINUE WITH THE POPS IN THE SOUTHERN COUNTIES. DRY AIR PUSHES IN FOR SATURDAY NIGHT AND SUNDAY. NGM MOS TEMPERATURES IN THE BALLPARK FOR THE FIRST 3 PERIODS...BUT A LOOK LITTLE WARM FOR SUNDAY...CONSIDERING THAT THE THE 850 TEMPERATURES WILL BE ABOUT 10 C. .ILN...NONE SITES
In the hours before
Special weather statement, Jul 9, 7:37 PM EDT, 32 minutes before
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</html>Special weather statement, Jul 9, 7:37 PM EDT, 32 minutes before
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</html>Local storm report, Jul 9, 7:50 PM EDT, 19 minutes before
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</html>Local storm report, Jul 9, 7:50 PM EDT, 19 minutes before
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<div class="status" id="status">Temporary Notice</div>
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</html>Local storm report, Jul 9, 7:59 PM EDT, 10 minutes before
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<div class="status" id="status">Temporary Notice</div>
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</html>Local storm report, Jul 9, 7:59 PM EDT, 10 minutes before
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</head>
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<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>The office that day
Everything else NWS Wilmington, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 8:04 PM EDT | Severe Thunderstorm Warning | ILN | Greene | 46 min |
| Jul 9, 8:14 PM EDT | Severe Thunderstorm Warning | ILN | Madison | 46 min |
| Jul 9, 8:34 PM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 61 min |
| Jul 9, 8:39 PM EDT | Severe Thunderstorm Warning | ILN | Pickaway | 66 min |
| Jul 9, 8:50 PM EDT | Severe Thunderstorm Warning | ILN | Clinton, Warren | 75 min |
| Jul 9, 8:17 PM EDT | Severe Thunderstorm Warning | ILN | Dearborn, Ripley | 63 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; radar from the NEXRAD Level II archive.