Hazardous Weather Outlook
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
782 FLUS43 KOAX 130948 HWOOAX Hazardous Weather Outlook National Weather Service Omaha/Valley NE 448 AM CDT Wed Aug 13 2025 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-140000- 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- 448 AM CDT Wed Aug 13 2025 This Hazardous Weather Outlook is for portions of southwest Iowa...west central Iowa...east central Nebraska...northeast Nebraska and southeast Nebraska. .DAY ONE...Today and Tonight Areas of dense fog are possible early this morning across southwest Iowa. Localized dense fog may develop across northeast Nebraska as well. A complex of thunderstorms is expected to move into portions of northeast Nebraska late tonight. There is a 5-15% chance of locally damaging wind gusts up to 65 mph. Stronger thunderstorms also are capable of producing heavy rainfall that may produce localized flash flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Heat and humidity builds through the end of the week with peak afternoon heat indices of 100 to 105 degrees forecast Friday and Saturday, with values of 105-110 possible along the Nebraska-South Dakota border. Thunderstorm chances increase late Saturday night, along the Nebraska-South Dakota border. Chances for thunderstorms increase across the entire area Monday into Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight. $$