Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
343 AM CDT Sat May 16 2026
IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-170845-
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-
Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-
Union-
343 AM CDT Sat May 16 2026
This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa, southwest Minnesota, northeast Nebraska, central South
Dakota, east central South Dakota, south central South Dakota and
southeast South Dakota.
.DAY ONE...Today and tonight.
Locally elevated to near critical fire conditions this afternoon due
to very low relative humidity.
Isolated and possibly severe storms may develop along US Highway 20
between 4 and 8 PM today. Large hail to 2 inches and 60 mph wind
gusts are possible if storms develop.
More widespread thunderstorms are expected tonight into early Sunday.
Strong to severe storms may produce large hail to 2 inches and 60 mph
wind gusts from 10 PM to 5 AM.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
A significant severe weather event is possible Sunday afternoon into
Sunday night. Very large hail, damaging straight line winds, and
tornadoes are all possible. Prepare now if you have outdoor plans and
have alternate plans in place. Review your severe weather plans.
Strong to severe storms are possible Monday for portions of the area.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed at times Saturday afternoon through
Monday.
$$
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
808 AM CDT Sat May 16 2026
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
171315-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
808 AM CDT Sat May 16 2026
This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.
.DAY ONE...Today and Tonight.
Showers and thunderstorms are possible late tonight into Sunday
morning. The strongest storms will produce heavy rain, frequent
lightning, and small hail.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Scattered to numerous severe thunderstorms will be possible
Sunday evening across much of central and southern Minnesota.
Another round of strong to severe storms is expected to develop
Monday afternoon and evening, with the greatest severe weather
risk Monday shifting to southeastern Minnesota into western
Wisconsin.
.SPOTTER INFORMATION STATEMENT...
SKYWARN spotter activation may be needed Sunday evening and on
Monday.
$$
Strus
Hazardous Weather Outlook
National Weather Service North Platte NE
531 AM CDT Sat May 16 2026
NEZ004>010-022>029-035>038-056>059-069>071-094-171045-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
531 AM CDT Sat May 16 2026 /431 AM MDT Sat May 16 2026/
This Hazardous Weather Outlook is for portions of western and north
central Nebraska.
.DAY ONE...Today and tonight.
Scattered thunderstorms are likely to impact much of western Nebraska
today with a threat for severe hazards. Very large hail, damaging
wind gusts, and a tornado or two are the main concerns. Storms may
develop as early as mid-afternoon but confidence is low in this
occurring. Late afternoon and evening thunderstorm development is
much more certain with activity moving west to east across the
southwest, southern Sandhills, and eventually into central Nebraska.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Additional scattered severe thunderstorms appears likely Sunday
afternoon and evening, favoring central Nebraska. Potential hazards
include damaging wind gusts, large hail, and perhaps a tornado or
two.
Scattered thunderstorms will again be possible Monday afternoon and
evening for central Nebraska. A strong storm or two cannot be ruled
out with hail and damaging wind gusts the main concern.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will likely be needed Saturday, mainly for central
through southwest Nebraska.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
502 AM CDT Sat May 16 2026
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-171015-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
502 AM CDT Sat May 16 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...Today and tonight
There is a Slight Risk (level 2 of 5) for severe storms today.
All modes of severe storms are possible. Storms are expected to
develop in central Iowa late this afternoon, continuing across
Iowa overnight through Sunday morning.
.DAYS TWO THROUGH SEVEN...Sunday through Friday
An active weather pattern will continue Sunday and Monday, with
chances for severe thunderstorms both days. Details of timing,
location, and hazard types will be better determined in the coming
days as each day of storms will impact details of the next.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed at times through Monday.
$$
Hagenhoff
Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
443 AM CDT Sat May 16 2026
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-170945-
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-
443 AM CDT Sat May 16 2026
This Hazardous Weather Outlook is for southwest Iowa, west central
Iowa, east central Nebraska, northeast Nebraska and southeast
Nebraska.
.DAY ONE...Today and tonight.
Strong to severe thunderstorms will develop across the area/move into
the area after 4 PM. Strong winds (75+ mph) and large hail are the
primary hazards, though an isolated tornado is possible as well.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Repeated rounds of showers and storms are forecast Sunday and
Monday -- primarily during the afternoon and evening hours. Large
hail and damaging winds, and tornadoes (some possibly strong) are all
possible.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time, but reports of
severe weather are appreciated.
$$
Hazardous Weather Outlook
National Weather Service Aberdeen SD
318 AM CDT Sat May 16 2026
SDZ033>036-045-048-051-170830-
Stanley-Sully-Hughes-Hyde-Jones-Lyman-Buffalo-
318 AM CDT Sat May 16 2026 /218 AM MDT Sat May 16 2026/
This Hazardous Weather Outlook is for central South Dakota.
.DAY ONE...Today and tonight.
Red Flag conditions again today with temperatures into the upper 70s
and low 80s and afternoon humidity around 20%. Through the afternoon,
winds will be increasing out of the east southeast at 20 to 35 mph.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Marginal Risk for severe weather (1 of 5) Sunday afternoon/evening
includes parts of the central South Dakota. Main threat from storms
are large hail and high winds.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
