Day 1 Convective Outlook
Issued: 2026-09-09 05:41 UTC
Valid: 2026-09-09 12:00 UTC
Isolated strong to severe thunderstorms are possible across portions of the central Plains to the Ohio Valley on Wednesday. A more organized severe weather threat is expected from eastern Ohio to western New York.
Forecaster: Thornton/Chalmers
Day 2 Convective Outlook
Issued: 2026-09-09 05:17 UTC
Valid: 2026-09-10 12:00 UTC
Isolated strong to severe thunderstorms are possible on Thursday afternoon across the southern High Plains and portions of the Ozarks into the Mid-South.
Forecaster: Leitman
Day 3 Convective Outlook
Issued: 2026-09-09 06:59 UTC
Valid: 2026-09-11 12:00 UTC
Severe thunderstorms are possible across portions of the Upper Midwest late Friday afternoon into Friday night.
Forecaster: Leitman
Days 4-8 Convective Outlook
Issued: 2026-09-08 07:24 UTC
Valid: 2026-09-11 12:00 UTC
Severe potential could develop across portions of the Plains into the Upper Midwest on Day 4/Friday as boundary layer moisture spreads northward ahead of a southeastward-advancing cold front. …
Forecaster: Leitman