Alert archive / Iowa / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 12, NWS Des Moines, IA

March 31, 20236 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Mar 31, 2023, 2:46 PM CDT for 6 counties in Iowa. It was in force for 59 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: Mar 31, 2023, 2:46 PM CDT (19:46 UTC)
Expired: Mar 31, 2023, 3:45 PM CDT
In force: 59 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Damage threat: Considerable
Hail: 2.0 in
Wind: 60.0 mph

Counties Boone County, IA, Grundy County, IA, Hamilton County, IA, Hardin County, IA, Marshall County, IA, Story County, IA

The radar

The Des Moines radar (KDMX), 62 km from the middle of the area, began a volume at 19:50 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
Mar 31, 11:46 AM CDT	Tornado Watch PDS	SPC	8 hr

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 Mar 31, 2:08 PM CDT, 38 minutes earlier.

Area forecast discussion, Mar 31, 2:08 PM CDT, 38 minutes before

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Hazardous weather outlook, Mar 31, 3:59 AM CDT, 10 hours 47 minutes before

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In the hours before

Local storm report, Mar 31, 12:50 PM CDT, 1 hour 56 minutes before

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Local storm report, Mar 31, 1:15 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
115 PM CDT FRI MAR 31 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1240 PM     HAIL             5 S MOUNT AYR           40.64N 94.24W
03/31/2023  E1.75 INCH       RINGGOLD           IA   BROADCAST MEDIA

            RELAYED BY WHO-TV13 IN DES MOINES.

&&

JAZ

Local storm report, Mar 31, 1:54 PM CDT, 52 minutes before

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Local storm report, Mar 31, 1:56 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
156 PM CDT FRI MAR 31 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     HAIL             LUCAS                   41.03N 93.46W
03/31/2023  E1.75 INCH       LUCAS              IA   EMERGENCY MNGR

            RELAYED BY KNIA/KRLS RADIO.

&&

JAZ

Local storm report, Mar 31, 2:43 PM CDT, 3 minutes before

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Local storm report, Mar 31, 2:46 PM CDT, 0 minutes before

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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 31, 3:30 AM CDT	Wind Advisory	DMX	Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 34 more	28 hr
Mar 31, 3:38 AM CDT	Winter Weather Advisory	DMX	Cerro Gordo, Emmet, Franklin, Hancock, Humboldt, Kossuth and 5 more	27 hr
Mar 31, 12:30 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Ringgold, Union	45 min
Mar 31, 12:36 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Lucas, Madison, Warren	39 min
Mar 31, 12:40 PM CDT	Tornado Warning	DMX	Clarke, Decatur, Ringgold, Union	39 min
Mar 31, 1:18 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Marion, Warren	42 min
Mar 31, 1:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Clarke, Madison, Union, Warren	48 min
Mar 31, 2:01 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Madison, Polk, Warren	29 min
Mar 31, 2:03 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion, Warren	42 min
Mar 31, 2:07 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Clarke, Decatur, Lucas, Warren	38 min
Mar 31, 2:13 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Dallas, Polk, Story	47 min
Mar 31, 2:25 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Appanoose, Davis, Monroe, Wayne	50 min
Mar 31, 2:41 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marshall, Poweshiek, Tama	42 min
Mar 31, 2:41 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Lucas, Marion, Warren	49 min
Mar 31, 3:01 PM CDT	Blizzard Warning	DMX	Emmet	16 hr
Mar 31, 3:01 PM CDT	Winter Storm Warning	DMX	Hancock, Kossuth, Palo Alto, Winnebago, Worth	16 hr
Mar 31, 3:02 PM CDT	Tornado Warning	DMX	Appanoose, Davis, Monroe, Wapello	43 min
Mar 31, 3:05 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Monroe, Wapello, Wayne	40 min
Mar 31, 3:20 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	Davis, Mahaska, Monroe, Wapello	40 min
Mar 31, 3:23 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Poweshiek, Tama	37 min
Mar 31, 3:39 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Monroe, Wapello	51 min
Mar 31, 3:42 PM CDT	Tornado Warning Tornado observed	DMX	Wapello	18 min
Mar 31, 3:49 PM CDT	Severe Thunderstorm Warning	DMX	Hancock, Kossuth, Winnebago	56 min
Mar 31, 3:53 PM CDT	Tornado Warning	DMX	Tama	33 min
Mar 31, 3:54 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Jasper, Mahaska, Marion, Poweshiek, Tama	51 min
Mar 31, 3:55 PM CDT	Severe Thunderstorm Warning	DMX	Poweshiek	35 min
Mar 31, 3:56 PM CDT	Tornado Warning	DMX	Poweshiek	34 min
Mar 31, 4:17 PM CDT	Severe Thunderstorm Warning	DMX	Cerro Gordo, Franklin, Hancock, Winnebago, Worth	36 min
Mar 31, 4:19 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Marion, Monroe, Poweshiek	56 min
Mar 31, 4:24 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 5 more	62 min
Mar 31, 4:27 PM CDT	Tornado Warning	DMX	Black Hawk, Bremer, Butler, Franklin, Grundy, Hardin	34 min
Mar 31, 4:28 PM CDT	Tornado Warning	DMX	Black Hawk, Grundy, Marshall, Tama	34 min
Mar 31, 4:34 PM CDT	Tornado Warning	DMX	Black Hawk, Bremer, Butler, Grundy, Marshall, Tama	29 min
Mar 31, 4:40 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Poweshiek	32 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2023 Every severe thunderstorm warning in 2023

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.