Alert archive / Iowa / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 120, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Aug 9, 1999, 10:40 PM CDT for Butler County, Iowa. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1999, 10:40 PM CDT (03:40 UTC)
- Expired
- Aug 9, 1999, 11:15 PM CDT
- In force
- 35 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Butler County, IA
The radar
The Des Moines radar (KDMX), 135 km from the middle of the area, began a volume at 03:42 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 9, 6:30 PM CDT | Tornado Watch | SPC | 6 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 Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 3:30 PM CDT, 7 hours 10 minutes earlier.
Area forecast discussion, Aug 9, 3:30 PM CDT, 7 hours 10 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 330 PM CDT MON AUG 9 1999 WX QUITE FOR TNGT WITH HI MOVG ACRS IA OVR NGT. MAIN FEAT COMES LATE WED INTO THU MRNG. MDLS CONSISTENT WITH MVMT OF UPR LO AND STG VMAX FOR THIS TIME OF YR. MEAN RDG PSN TO THE W OF IA AND MVMTS OF UPR LO AND SFC CONSISTENT WITH THIS PSN. QUICK REBOUND OF MSTR INDCTD BY ALL MDLS WITH PWATS UP TO 50 MM B WED EVE. THETA-E AVCTN STG OVR IA LATE IN DAY WED THRU 08Z THU AND VRY GUF LLJ FOR MID AUG. TSTMS SHUD BE WDSPRD AND WL GO CAT POPS N, LKLY CNTRL AND CHC S WED NGT AFT INTRO CHC OVR W THIRD WED. MNTND POPS MAINLY MRNG THU AND A LOT CUD GO WRONG WITH THIS FCST BFR ALL IS SAID AND DONE. INDICTNS OF 1ST DRY SLOT IN AVN FOR THU AFTN AND EVE BFR COLD AIR WRAPS ARND FM THE NW INTO ERY FRI. WL CARRY SOME POPS INTO FRI ERY, BUT THEN DRY UNTIL LATE SUN WITH NXT SYS. SHUD WRM UP OVR WKND WITH PHASE 2 OF SUMMER GETTING INTO SWING. DSM 02722 ALO 01865 .DSM...NONE MS AUG 99
In the hours before
Local storm report, Aug 9, 9:06 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
906 PM CDT MON AUG 09 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0902 PM SCARVILLE IA TORNADO
08/09/99 WINNEBAGO TORNADO REPORTED NEAR
SCARVILLELocal storm report, Aug 9, 9:06 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
906 PM CDT MON AUG 09 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0902 PM SCARVILLE IA TORNADO
08/09/99 WINNEBAGO TORNADO REPORTED NEAR
SCARVILLELocal storm report, Aug 9, 10:00 PM CDT, 40 minutes before
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</html>Special weather statement, Aug 9, 10:15 PM CDT, 25 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<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.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
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<script src="index.js"></script>
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</html>Special weather statement, Aug 9, 10:15 PM CDT, 25 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<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.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 63 min |
| Aug 9, 9:00 PM CDT | Tornado Warning | DMX | Winnebago, Worth | 35 min |
| Aug 9, 9:24 PM CDT | Tornado Warning | DMX | Cerro Gordo | 46 min |
| Aug 9, 10:10 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 35 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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; radar from the NEXRAD Level II archive.