EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaMerrick, NE; Nance, NE; Polk, NE Effective8/19/2026, 11:19:00 AM CDT Expires8/19/2026, 12:00:00 PM CDT...
Forecasts
SPC Day 1/2/3 outlooks, convective outlooks
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaMerrick, NE; Nance, NE; Polk, NE Effective8/19/2026, 11:19:00 AM CDT Expires8/19/2026, 12:00:00 PM CDT...
EventExtreme Heat Warning SeveritySevere UrgencyExpected CertaintyLikely AreaNorth and Central Sebastian; Southern Crawford; Central and Southern Franklin; Southern Sebastian; Pushmataha; Choctaw;...
EventHeat Advisory SeverityModerate UrgencyExpected CertaintyLikely AreaBenton; Carroll; Washington; Madison; Northern Crawford; Northern Franklin; Ottawa; Delaware; Cherokee; Adair; Northern Sequoyah Effective8/19/2026,...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaGreeley, NE; Howard, NE; Merrick, NE; Nance, NE Effective8/19/2026, 11:12:00 AM CDT Expires8/19/2026, 12:00:00...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaGreeley, NE; Howard, NE; Merrick, NE; Nance, NE; Valley, NE Effective8/19/2026, 10:57:00 AM CDT...
EventHeat Advisory SeverityModerate UrgencyExpected CertaintyLikely AreaLlano; Burnet; Williamson; Hays; Travis; Bastrop; Lee; Bexar; Comal; Guadalupe; Caldwell; Fayette; Atascosa; Wilson; Karnes;...
EventSevere Thunderstorm Warning SeveritySevere UrgencyImmediate CertaintyObserved AreaGarfield, NE; Wheeler, NE Effective8/19/2026, 10:23:00 AM CDT Expires8/19/2026, 11:15:00 AM CDT Severe Thunderstorm...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaFremont, IA; Antelope, NE; Boone, NE; Butler, NE; Cass, NE; Colfax, NE; Lancaster, NE;...
EventSevere Thunderstorm Watch SeveritySevere UrgencyFuture CertaintyPossible AreaGreeley, NE; Hamilton, NE; Howard, NE; Merrick, NE; Nance, NE; Polk, NE; Valley, NE;...