FLUS43 KOAX 181026
HWOOAX

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
526 AM CDT Mon May 18 2026

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-191030-
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-
526 AM CDT Mon May 18 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.

Additional strong to severe storms are forecast this afternoon, with
an increased threat for large hail (2-4+ inches) and strong 
tornadoes. Additional chances for heavy rainfall on top of what has 
already fallen since Friday night will result in a potential for 
flash flooding, particularly for portions of southeastern Nebraska. 
Chances to see severe storm activity is maximized over southeast 
Nebraska.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

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