A line of storms produced damaging wind gusts and hail across southwest Iowa.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS OAX wrote it up.
A line of storms produced damaging wind gusts and hail across southwest Iowa.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at May 12, 5:25 PM CST, 40 minutes earlier.
Area Forecast Discussion National Weather Service Omaha/Valley NE 625 PM CDT Thu May 12 2022 ...Updated Aviation Forecast Discussion... .DISCUSSION... Issued at 331 PM CDT Thu May 12 2022 Large scale flow consisting of negative tilt trough with embedded circulation situated over WY. At the surface, area of low pressure was located over south-central SD with a warm front extending into southern MN and a cold front extending to northeast CO. Per 88D mosaic storms have already formed along dry line in western KS and expanded into south-central NE. Environment activity is pushing into is quite unstable with MUCAPE roughly 4000 J/kg. Expect intensification trend to continue this afternoon as line of storms forge eastward. At this point, the HRRR is advertising this initial surge of convection will weaken late this afternoon with more development along the cold front sweeping in from the west. At this point expect thrust of strong/severe linear storms to roll across the CWA this evening with damaging straight line wind threat more prevalent along and north of I-80. Frontal passage should be underway in the Omaha metro sometime toward 06Z. Any lingering precip activity should be clear of the CWA by sunrise Friday morning. Very pleasant conditions expected then Friday and Saturday. Chances for showers and thunderstorms return Saturday night/Sunday morning in response to a cold front dropping out of the Dakotas. Through early next week precip chances will prevail in association with embedded impulses moving across the region. Highs: Fri - low 80s Sat - low 80s Sun - mid 70s Mon - upper 70s/low 80s Tue - mid/upper 70s Wed - mid/upper 70s && .AVIATION...(For the 00Z TAFS through 00Z Friday evening) Issued at 625 PM CDT Thu May 12 2022 Line of severe storms continues to work through the area, producing 60 to 70 mph wind gusts and MVFR to IFR conditions. The winds have also been leading to blowing dust with very low visibility, so visibility may significantly drop shortly prior to storms arriving. Another line of storms may follow later this evening, though those are less likely to be severe. As it stands, have VCTS mention through 8-9Z at KOMA and KLNK, though may need to refine to add a break prior to then. Once the storms pass through, expect VFR conditions to prevail with westerly to northwesterly winds generally 10 kts or less and just some passing mid to high clouds. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...None. IA...None. && DISCUSSION...DEE AVIATION...CA
Hazardous Weather Outlook National Weather Service Omaha/Valley NE 311 PM CDT Thu May 12 2022 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-131015- Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont- Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison- Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler- Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline- Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson- 311 PM CDT Thu May 12 2022 This Hazardous Weather Outlook is for portions of southwest Iowa...west central Iowa...east central Nebraska...northeast Nebraska and southeast Nebraska. .DAY ONE...Tonight and Friday A line of severe thunderstorms will move through northeast Nebraska this afternoon. The primary hazard will be winds to 80 mph or stronger. These damaging winds may be accompanied by hail up to the size of golfballs in the most intense storms. This evening, an additional line of strong to severe storms will move across much of eastern Nebraska and western Iowa. The strongest parts of this line of storms will be capable of producing winds to 70 mph or stronger, as well as hail up to the size of quarters. Storms should move out of the area by 2 AM Friday. .DAYS TWO THROUGH SEVEN...Friday night through Thursday Additional thunderstorms will be possible Saturday night into Sunday, though they are not expected to be severe. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
644 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0640 PM TSTM WND GST 1 WNW VALLEY 41.32N 96.37W
05/12/2022 M68 MPH DOUGLAS NE NWS EMPLOYEE
&&
TSNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
646 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0635 PM TSTM WND GST 2 NE WAHOO 41.23N 96.60W
05/12/2022 M59 MPH SAUNDERS NE AWOS
AWOS STATION KAHQ WAHOO.
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
650 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0635 PM TSTM WND GST WAHOO 41.21N 96.62W
05/12/2022 M59 MPH SAUNDERS NE AWOS
&&
TSNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
655 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0652 PM TSTM WND GST 2 ESE TEKAMAH 41.77N 96.18W
05/12/2022 M69 MPH BURT NE ASOS
&&
TSNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
701 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0657 PM HAIL 1 W FREMONT 41.44N 96.51W
05/12/2022 U0.75 INCH DODGE NE PUBLIC
REPORT FROM MPING: DIME.
&&
TSNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
702 PM CDT THU MAY 12 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0654 PM TSTM WND GST 2 ESE TEKAMAH 41.77N 96.18W
05/12/2022 M71 MPH BURT NE ASOS
&&
TSNThe Omaha radar (KOAX), 63 km away, was scanning. The volume nearest the first event began at 00:05 UTC.
2 thunderstorm wind. Local standard time, as filed.
Coop Observer estimated wind gusts at 70 mph and visibility down to 2 miles due to dust. Also reported dime sized hail.
Public reported trees uprooted or snapped.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2022Every state in 2022This day in weather historyWarnings in Iowa, May 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1025351, 1025352.