EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaCass, NE; Johnson, NE; Nemaha, NE; Otoe, NE; Pawnee, NE; Richardson, NE Effective8/18/2026, 2:20:00...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaLyman, SD Effective8/18/2026, 2:20:00 AM CDT Expires8/18/2026, 3:00:00 AM CDT Severe Thunderstorm Warning issued...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaGage, NE; Lancaster, NE; Saunders, NE Effective8/18/2026, 1:59:00 AM CDT Expires8/18/2026, 3:00:00 AM CDT...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaFillmore, NE; York, NE Effective8/18/2026, 1:45:00 AM CDT Expires8/18/2026, 2:15:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaSaline, NE; Seward, NE Effective8/18/2026, 1:39:00 AM CDT Expires8/18/2026, 2:30:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaButler, NE; Seward, NE Effective8/18/2026, 1:31:00 AM CDT Expires8/18/2026, 2:15:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaAurora, SD; Brule, SD; Davison, SD; Jerauld, SD Effective8/18/2026, 1:29:00 AM CDT Expires8/18/2026, 2:00:00...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaButler, NE; Gage, NE; Jefferson, NE; Lancaster, NE; Saline, NE; Seward, NE Effective8/18/2026, 1:32:00...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaPolk, NE; York, NE Effective8/18/2026, 1:25:00 AM CDT Expires8/18/2026, 2:00:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaNuckolls, NE; Thayer, NE; Webster, NE Effective8/18/2026, 1:20:00 AM CDT Expires8/18/2026, 4:00:00 AM CDT...