Severe

Significant threat to life or property

Illinois, Wisconsin Severe Flood Warning | Effective 09/23/2026 20:10

...Forecast flooding changed to Minor severity and increased in duration for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Friday afternoon. * IMPACTS...At 12.0 feet, Water is up to the first floor levels of some homes in the Town of Wheatland, Silver Lake and Village of Salem Lakes area along Riverside Drive and Shorewood Drive. Hoosier

Kentucky Severe Flash Flood Warning | Effective 09/23/2026 20:10

FFWJKL The National Weather Service in Jackson has extended the * Flash Flood Warning for... Southwestern Harlan County in southeastern Kentucky... * Until 100 AM EDT. * At 1110 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional heavy rainfall is imminent. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated.

Kentucky Severe Flash Flood Warning | Effective 09/23/2026 19:53

At 1053 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional heavy rainfall is imminent. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Severe Hurricane Watch | Effective 09/23/2026 19:56

* WHAT...East winds 25 to 35 kt with higher gusts and seas 13 to 18 feet. * WHERE...Big Island Windward Waters. * WHEN...Beginning 6 AM HST Friday. * IMPACTS...Extremely strong winds will cause hazardous seas which will likely capsize or damage vessels and severely reduce visibility. Mariners should remain in port, alter course, and/or secure the vessel for extreme conditions before conditions deteriorate further.

Severe Hurricane Watch | Effective 09/23/2026 19:56

* WHAT...For the Small Craft Advisory, northeast winds 15 to 30 kt with higher gusts and seas 8 to 13 feet. For the Hurricane Watch, east winds 30 to 45 kt with higher gusts and seas 16 to 21 feet. * WHERE...Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...For the Small Craft Advisory, until 6 AM HST Friday. For the Hurricane Watch, beginning 6 AM HST Friday. * IMPACTS...Extremely strong winds will cause hazardous seas

Hawaii Severe Hurricane Watch | Effective 09/23/2026 19:56

* LOCATIONS AFFECTED - Hilo - Pahoa - Volcano * WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 25-35 mph with gusts to 40 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 58 to 73 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for dangerous wind of equivalent strong tropical storm force.

Hawaii Severe Hurricane Watch | Effective 09/23/2026 19:56

* LOCATIONS AFFECTED - Hawaiian Ocean View Estates * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 30-40 mph with gusts to 60 mph - Window for Tropical Storm force winds: early Saturday morning until early Sunday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 74 to 110 mph - The wind threat has remained nearly steady from the previous assessment.

Hawaii Severe Hurricane Watch | Effective 09/23/2026 19:56

* LOCATIONS AFFECTED - Kamuela - Hawi - Honokaa * WIND - LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind - Peak Wind Forecast: 35-45 mph with gusts to 55 mph - Window for Tropical Storm force winds: Friday afternoon until early Saturday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has remained nearly steady from the

Hawaii Severe Hurricane Watch | Effective 09/23/2026 19:56

* LOCATIONS AFFECTED - Mauna Kea Summit - Mauna Loa Summit * WIND - LATEST LOCAL FORECAST: Equivalent Cat 1 Hurricane force wind - Peak Wind Forecast: 55-75 mph with gusts to 70 mph - Window for Tropical Storm force winds: Thursday afternoon until Sunday morning - Window for Hurricane force winds: Friday evening until early Saturday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 58

Hawaii Severe Hurricane Watch | Effective 09/23/2026 19:56

* LOCATIONS AFFECTED - Kailua-Kona - Captain Cook - Milolii * WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 25-35 mph with gusts to 50 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 74 to 110 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for life-threatening wind of equivalent CAT 1 or
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