Alert archive / Iowa / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 66, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 6, 1999, 3:58 PM CDT for Hamilton County, Iowa. It was in force for 32 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
- Jun 6, 1999, 3:58 PM CDT (20:58 UTC)
- Expired
- Jun 6, 1999, 4:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Hamilton County, IA
The radar
The Des Moines radar (KDMX), 73 km from the middle of the area, began a volume at 21:00 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 |
|---|---|---|---|
| Jun 6, 2:00 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 Jun 6, 2:33 PM CDT, 1 hour 25 minutes earlier.
Area forecast discussion, Jun 6, 2:33 PM CDT, 1 hour 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 233 PM CDT SUN JUN 6 1999 MAIN CONCERN NR TERM TSTM TRENDS. CONVECTION HAS ALREADY DVLPD FM SWRN CORNER OF STATE TWRD KADU AND SHOULD CONTINUE FILLING IN FARTHER N ALG MSTR CNVGNC AXIS...WHICH 18Z SFC ANLYS PLACES JUST AHD OF WEAK CDFNT ALG KEST-KCBF LN. SVR POTENTIAL LOOKS GOOD WITH 18Z LAPS THETA-E ANLYS PLACING BEST CNVGNC N OF CURRENT AREA WITH CAPES AOA 3500 J/KG. SHEAR ALSO INCRG WITH H7 50KT SPEED MAX CROSSING MO RVR PER RECENT PROFILER DATA. MDLS IN GENERAL AGREEMENT PUSHING CNVGNC AREA SLOWLY ACRS FA TNGT THEN TO E BY 12Z ENDING PCPN THREAT. LCLLY HVY RAINS WL FALL WITH SOME TSTMS TRAINING SW TO NE BUT AREAL CVRG SHOULD BE LTD ENOUGH TO PRECLUDE WDSPRD HVY RAINS. FLASH FLOOD GUID HAS ALSO REBOUNDED OVR MUCH OF CWA XCP TWRD MN BORDER WHICH SAW SVRL INCHES LAST NGT SO WL HOLD OFF ON FLASH FLOOD WATCH ATTM (COORD W/DVN). SVR WX SEEMS TO BE GREATER THREAT. THERMAL TROF SLIDES ACRS IA EARLY MON...THEN WRM AND HUMID AMS MAKES A QUICK RTRN FOR LATER PDS. UPR LOW OVR SD LIFTS QUICKLY NEWD AND YET ANOTHER LG WV TROF SETTLES INTO WRN U.S WITH RDG BUILDING INTO GTLKS KEEPING FA DRY THRU 72 HRS. SOME WEAK LOW LVL CNVGNC NOTED BUT NOT ENOUGH TO BUCK CONTINUITY OF GOING FCST. MAIN WX FEATURE WL BE SUMMERY...MUGGY AND STAGNANT AMS. FOR EXTENDED PD...MDLS SEEM TO BE IN GENERAL AGREEMENT WITH PERSISTENT LG WV PTN KEEPING IA BTWN WRN TROF AND ERN RDG ON SRN FRINGE OF SWLY UPR LVL FLOW. HWVR PTN IS JUST PROGRESSIVE ENOUGH TO BRING FNT INTO FA BY THU AND FRI WITH POTENTIAL FOR MORE LCLLY HVY RAINS. THERE COULD BE A WEAK SHRT WV PASSING THRU RGN ON WED BUT WITH LTL SFC CNVGNC NOTED AND BACLIN ZN TO NW...WL LEAVE FCST DRY FOR NOW. .DSM...NONE SMALL
In the hours before
Special weather statement, Jun 6, 1:01 PM CDT, 2 hours 57 minutes before
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</html>Special weather statement, Jun 6, 1:01 PM CDT, 2 hours 57 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.
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 7:08 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 32 min |
| Jun 5, 8:24 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 36 min |
| Jun 6, 2:32 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 33 min |
| Jun 6, 3:09 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth | 36 min |
| Jun 6, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Greene, Webster | 31 min |
| Jun 6, 3:36 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 34 min |
| Jun 6, 3:39 PM CDT | Tornado Warning | DMX | Webster | 36 min |
| Jun 6, 3:58 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 32 min |
| Jun 6, 4:13 PM CDT | Tornado Warning | DMX | Wright | 32 min |
| Jun 6, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 30 min |
| Jun 6, 4:33 PM CDT | Tornado Warning | DMX | Franklin | 32 min |
| Jun 6, 5:45 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 35 min |
| Jun 6, 5:52 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 33 min |
| Jun 6, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 34 min |
| Jun 6, 6:29 PM CDT | Tornado Warning | DMX | Adair, Cass | 31 min |
| Jun 6, 6:36 PM CDT | Tornado Warning | DMX | Boone, Greene, Webster | 49 min |
| Jun 6, 6:42 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Wright | 33 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.