Alert archive / Iowa / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 62, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 12, 2022, 6:15 PM CDT for Emmet County, Kossuth County, Palo Alto County, Iowa. It was in force for 29 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 12, 2022, 6:15 PM CDT (23:15 UTC)
- Expired
- May 12, 2022, 6:44 PM CDT
- In force
- 29 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Emmet County, IA, Kossuth County, IA, Palo Alto County, IA
The radar
The Des Moines radar (KDMX), 178 km from the middle of the area, began a volume at 23:14 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
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 hours before the alert went out and 195 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
- 892 J/kg
- Mixed-layer CIN
- -300 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.2
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 12, 2:47 PM CDT, 3 hours 28 minutes earlier.
Area forecast discussion, May 12, 2:47 PM CDT, 3 hours 28 minutes before
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</html>Hazardous weather outlook, May 12, 3:34 PM CDT, 2 hours 41 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 334 PM CDT Thu May 12 2022 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-132045- 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- 334 PM CDT Thu May 12 2022 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight Heat index values into the mid to upper 90s across much of the area this afternoon. Another round of storms are expected tonight from western into central Iowa. These may be severe with damaging winds the main concern at this time with the highest risk over west and northwest Iowa. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Additional storm chances are possible on Friday and again Saturday night into Sunday. The risk of severe weather is low. .SPOTTER INFORMATION STATEMENT... Spotters may be needed tonight. Dodson
In the hours before
Special weather statement, May 12, 5:57 PM CDT, 18 minutes before
Special Weather Statement National Weather Service Des Moines IA 557 PM CDT Thu May 12 2022 IAZ004-005-015-023-024-033>035-130100- Emmet-Kossuth-Palo Alto-Pocahontas-Humboldt-Sac-Calhoun-Webster- Including the cities of Estherville, Algona, Emmetsburg, Pocahontas, Laurens, Rolfe, Fonda, Gilmore City, Humboldt, Sac City, Lake View, Odebolt, Wall Lake, Schaller, Early, Rockwell City, Manson, Lake City, Pomeroy, and Fort Dodge 557 PM CDT Thu May 12 2022 ...Gusty South Winds Increasing to West Southwest Between 630 PM and 730 PM this Evening... Strong low pressure over Central Nebraska is enhancing south wind gusts to near 40 to 45 mph at times this evening. An area of thunderstorms is entering northwest Iowa with a rather strong gust front, accompanied by a wall of dust. This is moving east northeast and may enter the Pocahontas and Emmet County areas between 630 and 730 pm this evening. Wind speeds may continue over 50 mph with the gust front and visibility may lower to under a mile at times. Persons should be aware of the potential for adverse travel conditions this evening in this area and be prepared for a period of strong winds. The gust front should weaken somewhat as it moves east, but some areas of blowing dust may still occur farther east this evening. Persons traveling over the region should be ready for cross winds this evening; particularly if driving a high profile vehicles as well as potentially low visibility. Please drive carefully. IAZ044>047-057>059-070>072-081-082-092-093-130100- Crawford-Carroll-Greene-Boone-Audubon-Guthrie-Dallas-Cass-Adair- Madison-Adams-Union-Taylor-Ringgold- Including the cities of Denison, Carroll, Jefferson, Boone, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Perry, Waukee, Adel, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Corning, Creston, Bedford, Lenox, New Market, and Mount Ayr 557 PM CDT Thu May 12 2022 ...Gusty South Winds this Evening... Strong low pressure over Central Nebraska is enhancing south wind gusts to near 35 to 40 mph at times this evening. The winds will begin to slow a bit between 7 and 8 pm this evening. Persons traveling over the region should be ready for cross winds this evening; particularly if driving a high profile vehicles. REV
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 48 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2022Every severe thunderstorm warning in 2022
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.