Severe

Significant threat to life or property

Illinois, Indiana Severe Flood Watch | Effective 06/17/2026 08:26

* WHAT...Flash flooding caused by excessive rainfall is possible<br /> today. * WHERE...Portions of Illinois, including the following areas,<br /> Central Cook, DuPage, Eastern Will, Ford, Grundy, Iroquois, Kane,<br /> Kankakee, Kendall, La Salle, Lake IL, Livingston, Northern Cook,<br /> Northern Will, Southern Cook and Southern Will and northwest<br /> Indiana, including the following areas, Benton, Jasper, Lake IN,<br /> Newton and Porter. * WHEN...Until 9 PM CDT /10 PM EDT/ this evening.

Illinois Severe Flood Watch | Effective 06/17/2026 08:26

* WHAT...Flash flooding caused by excessive rainfall is possible<br /> today. * WHERE...Portions of north central and northeast Illinois,<br /> including the following counties, in north central Illinois,<br /> Boone, De Kalb, Lee, Ogle and Winnebago. In northeast Illinois,<br /> McHenry. * WHEN...Until 5 PM CDT this afternoon. * IMPACTS...Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS...<br /> - Showers and thunderstorms will continue today. Rain may be<br /> heavy at times, with the strongest storms capable of<br />

Texas Severe Flood Warning | Effective 06/17/2026 08:27

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of southeast Texas, including the following<br /> counties, Brazoria and Galveston. * WHEN...Until 1215 PM CDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying<br /> and flood-prone locations is imminent or occurring. Streams<br /> continue to rise due to excess runoff from earlier rainfall.<br /> Expect many areas of slow moving or standing water. * ADDITIONAL DETAILS...<br /> - At 1027 AM CDT, Doppler radar indicated heavy rain due to<br />

Severe Tropical Storm Warning | Effective 06/17/2026 08:28

* WHAT...Winds up to 35 kt with gusts potentially over 40 kt and<br /> seas 6 to 11 ft. * WHERE...Coastal waters from High Island to Freeport TX out 20<br /> NM, Waters from Freeport to Matagorda Ship Channel TX from 20<br /> to 60 NM and Waters from High Island to Freeport TX from 20 to<br /> 60 NM. * WHEN...Through Wednesday Night. * IMPACTS...Tropical storm force winds and hazardous seas will<br /> capsize or damage vessels and reduce visibility.<br /> Mariners should alter plans to avoid these hazardous conditions.<br />

Severe Tropical Storm Watch | Effective 06/17/2026 08:28

* WHAT...The potential for winds up to 35 knots with gusts over<br /> 40 knots, rough bay waters, and seas 5 to 8 ft. * WHERE...Galveston Bay and Coastal waters from Freeport to<br /> Matagorda Ship Channel TX out 20 NM. * WHEN...Through Wednesday Night. * IMPACTS...Tropical storm force winds and hazardous seas could<br /> capsize or damage vessels and reduce visibility.<br /> Mariners should consider altering plans to avoid possible<br /> hazardous conditions. Remain in port, seek safe harbor, alter<br />

Mississippi Severe Flood Warning | Effective 06/17/2026 08:29

...The Flood Warning is extended for the following rivers in<br /> Mississippi... Black Creek Near Brooklyn affecting Forrest County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Black Creek near Brooklyn. * WHEN...Until early Monday morning. * IMPACTS...At 24.9 feet, Water begins to affect homes on the south<br /> side of Main Street. * ADDITIONAL DETAILS...<br /> - At 9:45 AM CDT Wednesday the stage was 21.4 feet.<br /> - Forecast...The river will rise to 21.6 feet this afternoon<br />

Illinois Severe Severe Thunderstorm Warning | Effective 06/17/2026 08:02

SVRLOT The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for...<br /> Livingston County in central Illinois... * Until 1100 AM CDT. * At 1001 AM CDT, severe thunderstorms were located along a line<br /> extending from near Toluca to near Secor to near Stanford, moving<br /> east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include...<br /> Pontiac, Fairbury, Chatsworth, Forrest, Flanagan, Odell, Cullom,<br />

Severe Tropical Storm Warning | Effective 06/17/2026 08:06

* WHAT...South winds 20 to 30 kt with gusts up to 45 kt and seas<br /> 6 to 11 ft. * WHERE...Portions of and the coastal lakes and bays of the Gulf<br /> of America. * WHEN...Until Tonight * IMPACTS...Tropical storm force winds and hazardous seas will<br /> capsize or damage vessels and reduce visibility.<br /> Mariners should alter plans to avoid these hazardous conditions.<br /> Remain in port, seek safe harbor, alter course, and/or secure the<br /> vessel for hazardous conditions.

Louisiana Severe Tropical Storm Warning | Effective 06/17/2026 08:06

* LOCATIONS AFFECTED<br /> - Burns Point<br /> - Cypremort Point * WIND<br /> - LATEST LOCAL FORECAST: Below tropical storm force wind<br /> - Peak Wind Forecast: 25-35 mph with gusts to 45 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST<br /> UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Wind less than 39 mph<br /> - The wind threat has remained nearly steady from the<br /> previous assessment.<br /> - PLAN: The sustained wind should remain less than tropical<br /> storm force. Conditions may still be gusty.<br />

Louisiana Severe Tropical Storm Warning | Effective 06/17/2026 08:06

* LOCATIONS AFFECTED<br /> - Avery Island * WIND<br /> - LATEST LOCAL FORECAST: Below tropical storm force wind<br /> - Peak Wind Forecast: 25-35 mph with gusts to 50 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST<br /> UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Wind less than 39 mph<br /> - The wind threat has remained nearly steady from the<br /> previous assessment.<br /> - PLAN: The sustained wind should remain less than tropical<br /> storm force. Conditions may still be gusty.<br />
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