Alert archive / Iowa / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 43, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 26, 2019, 1:02 AM CDT for Appanoose County, Wayne County, Iowa. It was in force for 28 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
- May 26, 2019, 1:02 AM CDT (06:02 UTC)
- Expired
- May 26, 2019, 1:30 AM CDT
- In force
- 28 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Appanoose County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 122 km from the middle of the area, began a volume at 06:03 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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 6.0 hours before the alert went out and 238 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
- 710 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.3
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 May 25, 11:32 PM CDT, 1 hour 30 minutes earlier.
Area forecast discussion, May 25, 11:32 PM CDT, 1 hour 30 minutes before
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</html>Hazardous weather outlook, May 25, 3:32 PM CDT, 9 hours 30 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 332 PM CDT Sat May 25 2019 IAZ074-075-081>086-092>097-261200- Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor- Ringgold-Decatur-Wayne-Appanoose-Davis- 332 PM CDT Sat May 25 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Tonight A Flash Flood Watch is in effect for the area through tonight. Please refer to the National Weather Service website at weather.gov/desmoines for further details. Thunderstorms are possible late this afternoon through tonight. A severe storm will be possible with large hail and damaging wind the main threats. Heavy rainfall may also increase flash flooding and river flooding risks. River Flood Warnings are in effect for parts of the Des Moines River. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Sunday through Friday Thunderstorms are likely Sunday night. A few storms may be strong to severe. Periodic thunderstorms are likely throughout Monday and Monday night. A few storms may be strong to severe Monday afternoon through Monday night. Thunderstorms are possible Tuesday. A few storms Tuesday afternoon through Tuesday evening may be strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed periodically from late this afternoon through Tuesday evening. IAZ050-061-062-073-261200- Tama-Jasper-Poweshiek-Warren- 332 PM CDT Sat May 25 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Tonight Thunderstorms are possible this afternoon into tonight. A severe storm will be possible with large hail and damaging winds the main threats. River Flood Warnings are in effect for parts of the following rivers in central Iowa: Des Moines, Raccoon, and Iowa. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Sunday through Friday Thunderstorms are likely Sunday night. A few storms may be strong to severe. Periodic thunderstorms are likely throughout Monday and through Monday night. A few storms may be strong to severe Monday afternoon through Monday night. Thunderstorms are possible Tuesday. A few storms Tuesday afternoon through Tuesday evening may be strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed periodically from late this afternoon through Tuesday evening. IAZ004>007-015>017-023>028-033>039-044>049-057>060-070>072-261200- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun- Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene- Boone-Story-Marshall-Audubon-Guthrie-Dallas-Polk-Cass-Adair- Madison- 332 PM CDT Sat May 25 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight An isolated thunderstorm will be possible this evening mainly south of Hwy 20. River Flood Warnings are in effect for parts of the following rivers in central Iowa: Des Moines, Raccoon, Iowa, and Cedar. Please refer to the National Weather Service website at weather.gov/desmoines for further details. .DAYS TWO THROUGH SEVEN...Sunday through Friday Thunderstorms are likely Sunday night. A few storms may be strong to severe. Periodic thunderstorms are likely throughout Monday and through Monday night. A few storms may be strong to severe Monday afternoon through Monday night. Thunderstorms are possible Tuesday. A few storms Tuesday afternoon through Tuesday evening may be strong to severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed periodically from Sunday night through Tuesday evening. MJB
In the hours before
Local storm report, May 25, 7:39 PM CDT, 5 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
739 PM CDT SAT MAY 25 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM HAIL KNOXVILLE 41.32N 93.10W
05/25/2019 E1.00 INCH MARION IA TRAINED SPOTTER
&&Local storm report, May 25, 8:10 PM CDT, 4 hours 52 minutes before
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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 |
|---|---|---|---|---|
| May 25, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 54 min |
| May 25, 7:34 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 15 min |
| May 25, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 24 min |
| May 25, 8:09 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 66 min |
| May 26, 12:46 AM CDT | Special Weather Statement | DMX | Decatur | 44 min |
| May 26, 12:54 AM CDT | Special Weather Statement | DMX | Wayne | 51 min |
| May 26, 1:12 AM CDT | Special Weather Statement | DMX | Decatur | 33 min |
| May 26, 1:24 AM CDT | Special Weather Statement | DMX | Adams, Taylor | 51 min |
| May 26, 1:44 AM CDT | Special Weather Statement | DMX | Lucas, Monroe | 31 min |
| May 26, 2:49 AM CDT | Special Weather Statement | DMX | Wapello | 11 min |
| May 26, 2:53 PM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 13 more | 23 hr |
| May 26, 5:41 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 19 days |
Nearby
Severe Thunderstorm Warnings in Iowa, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.