Alert archive / Iowa / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 69, NWS Des Moines, IA

May 19, 20244 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at May 19, 2024, 3:33 PM CDT for 4 counties in Iowa. It was in force for 42 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 19, 2024, 3:33 PM CDT (20:33 UTC)
Expired: May 19, 2024, 4:15 PM CDT
In force: 42 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Jasper County, IA, Mahaska County, IA, Marion County, IA, Poweshiek County, IA

The radar

The Des Moines radar (KDMX), 78 km from the middle of the area, began a volume at 20:35 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 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 19, 2:47 PM CDT, 46 minutes earlier.

Area forecast discussion, May 19, 2:47 PM CDT, 46 minutes before

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Hazardous weather outlook, May 19, 4:58 AM CDT, 10 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service Des Moines IA
458 AM CDT Sun May 19 2024

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-201000-
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-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
458 AM CDT Sun May 19 2024

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Thunderstorms will track from west to east through the area today
and into tonight. A few storms this afternoon and evening may be
strong to severe, especially over southern Iowa. Strong winds,
hail and locally heavy rainfall will be the primary concerns, but
a tornado can't be ruled out.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional storms are expected on Monday, with the potential for
more strong to severe storms in the afternoon and evening hours.
Main threats will again be strong winds, hail and locally heavy
rainfall, with the potential for a tornado or two as well.

The greatest severe risk through the period will fall on Tuesday
as a larger scale system passes through the area. All hazards
may be possible, including damaging winds, large hail, heavy
rainfall and tornadoes. More details on this system will be
provided in the coming days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed for any storms this afternoon
through Tuesday.

Dodson

In the hours before

Special weather statement, May 19, 11:18 AM CDT, 4 hours 15 minutes before

Special Weather Statement
National Weather Service Des Moines IA
1118 AM CDT Sun May 19 2024

IAZ058-059-071-072-191645-
Guthrie IA-Adair IA-Madison IA-Dallas IA-
1118 AM CDT Sun May 19 2024

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN MADISON...
SOUTHEASTERN GUTHRIE...SOUTHWESTERN DALLAS AND EASTERN ADAIR COUNTIES
THROUGH 1145 AM CDT...

At 1118 AM CDT, Doppler radar was tracking a strong thunderstorm near
Greenfield, moving northeast at 45 mph.

HAZARD...Half inch hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Winterset, Greenfield, Stuart, Earlham, Redfield, Dexter, Casey,
Diamondhead Lake, Menlo, Greenfield Municipal Airport, and
Winterset-Madison County Airport.

This includes Interstate 80 between mile markers 81 and 104.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4121 9445 4149 9456 4162 9419 4135 9401
TIME...MOT...LOC 1618Z 239DEG 37KT 4134 9442

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

KCM

Special weather statement, May 19, 11:44 AM CDT, 3 hours 49 minutes before

Special Weather Statement
National Weather Service Des Moines IA
1144 AM CDT Sun May 19 2024

IAZ072-191700-
Madison IA-
1144 AM CDT Sun May 19 2024

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN MADISON COUNTY THROUGH
NOON CDT...

At 1144 AM CDT, Doppler radar was tracking a strong thunderstorm 6
miles west of Winterset, moving northeast at 35 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Winterset, Earlham, Patterson, Winterset-Madison County Airport, and
Badger Creek State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4140 9424 4145 9424 4150 9411 4150 9391
      4137 9380 4124 9416
TIME...MOT...LOC 1644Z 242DEG 29KT 4131 9413

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

KCM

Local storm report, May 19, 12:00 PM CDT, 3 hours 33 minutes before

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Special weather statement, May 19, 12:14 PM CDT, 3 hours 19 minutes before

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Special weather statement, May 19, 1:05 PM CDT, 2 hours 28 minutes before

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Special weather statement, May 19, 3:27 PM CDT, 6 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
May 19, 11:18 AM CDT	Special Weather Statement	DMX	Adair	27 min
May 19, 11:44 AM CDT	Special Weather Statement	DMX	Madison	16 min
May 19, 11:49 AM CDT	Severe Thunderstorm Warning	DMX	Madison	26 min
May 19, 12:14 PM CDT	Special Weather Statement	DMX	Madison	16 min
May 19, 1:05 PM CDT	Special Weather Statement	DMX	Warren	25 min
May 19, 3:27 PM CDT	Special Weather Statement	DMX	Jasper, Marion, Poweshiek	63 min
May 19, 4:14 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Mahaska, Marion, Poweshiek	61 min
May 19, 6:49 PM CDT	Severe Thunderstorm Warning	DMX	Black Hawk, Butler, Grundy	41 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2024 Every severe thunderstorm warning in 2024

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.