985 FLUS43 KILX 181000 HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 500 AM CDT Mon May 18 2026 ILZ027>031-036>038-040>043-047>051-191100- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler- Mason-Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon- 500 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for central Illinois and west central Illinois. .DAY ONE...Today and tonight. A broken line of thunderstorms will advance eastward to the I-55 corridor this morning with a risk for scattered damaging wind gusts and isolated large hail. A second line of thunderstorms associated with an approaching cold front will arrive late tonight. There is a continued risk for damaging wind gusts and hail. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms will continue into early afternoon Tuesday. There is a Slight Risk (level 2 of 5) for damaging wind gusts and hail. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed through noon today. Expected storm motion is toward the northeast around 35 mph. $$ ILZ044>046-052>057-061>063-066>068-071>073-191100- Piatt-Champaign-Vermilion-Christian-Macon-Moultrie-Douglas-Coles- Edgar-Shelby-Cumberland-Clark-Effingham-Jasper-Crawford-Clay- Richland-Lawrence- 500 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and southeast Illinois. .DAY ONE...Today and tonight. A broken line of thunderstorms will advance into east-central and southeast IL late this morning through afternoon with a risk for scattered damaging wind gusts, isolated large hail, and a tornado or two. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Another round of strong to severe thunderstorms is anticipated Tuesday morning through evening as a cold front pushes through the region. There is a Slight Risk (level 2 of 5) for damaging wind gusts and hail. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed late morning through afternoon today. Expected storm motion is toward the northeast around 35 mph. $$ 37  663 FLUS43 KEAX 181010 HWOEAX Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 0509 AM CDT Mon May 18 2026 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-191009- Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS- Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler- Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton- Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton- Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis- Cooper-Bates-Henry- 0509 AM CDT Mon May 18 2026 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Through tonight. Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .KEY MESSAGES... - Showers and thunderstorms continue across the region this morning, with locally moderate to heavy rainfall possible. - Severe thunderstorms are likely late afternoon into late tonight. - Far NW Missouri and NE Kansas will be under the greatest threat for all severe hazards by late afternoon and early evening. - Storms should congeal into a line of thunderstorms by this evening, and move east southeast through the region late tonight. Once this occurs, damaging wind gusts should become the primary hazard, but a few brief tornadoes may be possible. - Moderate to heavy rain will be possible again with the storms tonight. A flood watch is in effect through almost the entire CWA through 7 AM Tuesday. - Cooler temperatures arrive for Tuesday through Thursday before heating up once more by this weekend. $$  482 FLUS43 KOAX 181026 HWOOAX Hazardous Weather Outlook National Weather Service Omaha/Valley NE 526 AM CDT Mon May 18 2026 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-191030- Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page- Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison-Stanton- Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler-Saunders-Douglas- Sarpy-Seward-Lancaster-Cass-Otoe-Saline-Jefferson-Gage-Johnson- Nemaha-Pawnee-Richardson- 526 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for southwest Iowa, west central Iowa, east central Nebraska, northeast Nebraska and southeast Nebraska. .DAY ONE...Today and tonight. Additional strong to severe storms are forecast this afternoon, with an increased threat for large hail (2-4+ inches) and strong tornadoes. Additional chances for heavy rainfall on top of what has already fallen since Friday night will result in a potential for flash flooding, particularly for portions of southeastern Nebraska. Chances to see severe storm activity is maximized over southeast Nebraska. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed. $$  250 FLUS43 KDMX 181048 HWODMX Hazardous Weather Outlook National Weather Service Des Moines IA 548 AM CDT Mon May 18 2026 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-191100- 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- 548 AM CDT Mon May 18 2026 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight There is an Enhanced Risk (level 3 of 5) for severe storms today. Storms are expected to move into the area after 6PM this evening, continuing to move across Iowa tonight into Tuesday morning. Damaging winds, large hail and tornadoes are all possible. Heavy rainfall is expected to occur at times with Monday's severe storms. Flash flooding concerns are limited mainly to cities and towns. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed Monday. $$