Expected

Responsive action SHOULD be taken soon (within next hour)

Iowa, Wisconsin Special Weather Statement | Effective 04/17/2026 11:23

Public safety alert, emergency alert, and weather alert Description: At 122 PM CDT, Doppler radar was tracking a strong thunderstorm over Holy Cross, or 14 miles southeast of Guttenberg, moving northeast at 55 mph. HAZARD...Wind gusts up to 50 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. This strong thunderstorm will be near... Lancaster around 140 PM CDT.

Idaho, Oregon Freeze Warning | Effective 04/17/2026 11:44

Public safety alert, emergency alert, and weather alert Description: * WHAT...Sub-freezing temperatures as low as 25 to 30. * WHERE...Portions of south central and southwest Idaho and southeast Oregon. * WHEN...From midnight MDT /11 PM PDT/ tonight to 10 AM MDT /9 AM PDT/ Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Instruction: Take steps now to protect tender plants from the cold.

Guam, Northern Mariana Islands High Surf Warning | Effective 04/17/2026 11:03

Public safety alert, emergency alert, and weather alert Description: * WHAT...For the High Surf Warning, dangerously large breaking waves of 11 to 15 feet. For the Coastal Flood Advisory, minor coastal flooding of 1 to 2 feet. For the High Surf Advisory, large breaking waves of 10 to 14 feet expected. For the High Rip Current Risk, dangerous rip currents. * WHERE...South, west and north facing reefs and shorelines of Guam and Rota. * WHEN...For the High Surf Warning, until 10 AM ChST this morning.

Northern Mariana Islands High Surf Warning | Effective 04/17/2026 11:03

Public safety alert, emergency alert, and weather alert Description: * WHAT...For the High Surf Warning, dangerously large breaking waves of 12 to 17 feet. For the Coastal Flood Advisory, minor coastal flooding of 1 to 2 feet expected. For the High Surf Advisory, large breaking waves of 10 to 14 feet expected. For the High Rip Current Risk, dangerous rip currents. * WHERE...South, west, and north facing reefs of Tinian and Saipan. * WHEN...For the High Surf Warning, until 10 AM ChST this

Northern Mariana Islands Rip Current Statement | Effective 04/17/2026 11:03

Public safety alert, emergency alert, and weather alert Description: * WHAT...For the High Surf Warning, dangerously large breaking waves of 12 to 17 feet. For the Coastal Flood Advisory, minor coastal flooding of 1 to 2 feet expected. For the High Surf Advisory, large breaking waves of 10 to 14 feet expected. For the High Rip Current Risk, dangerous rip currents. * WHERE...South, west, and north facing reefs of Tinian and Saipan. * WHEN...For the High Surf Warning, until 10 AM ChST this

Guam, Northern Mariana Islands Rip Current Statement | Effective 04/17/2026 11:03

Public safety alert, emergency alert, and weather alert Description: * WHAT...For the High Surf Warning, dangerously large breaking waves of 11 to 15 feet. For the Coastal Flood Advisory, minor coastal flooding of 1 to 2 feet. For the High Surf Advisory, large breaking waves of 10 to 14 feet expected. For the High Rip Current Risk, dangerous rip currents. * WHERE...South, west and north facing reefs and shorelines of Guam and Rota. * WHEN...For the High Surf Warning, until 10 AM ChST this morning.

California Freeze Warning | Effective 04/17/2026 11:09

Public safety alert, emergency alert, and weather alert Description: * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Northeastern Trinity, Northwestern and Central Trinity, and Southern Trinity. * WHEN...From 1 AM to 8 AM PDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Instruction: Take steps now to protect tender plants from the cold.

Montana Special Weather Statement | Effective 04/17/2026 11:10

Public safety alert, emergency alert, and weather alert Description: Scattered rain and snow showers will move southward through Central MT this afternoon. These showers will affect areas around Choteau, Simms, Great Falls, Monarch and Stanford through the early afternoon hours. Expect a brief period of reduced visibility as the showers move through. Most snow accumulations will remain just on grassy areas. An isolated lightning strike is also possible.

Arizona, California, Nevada Wind Advisory | Effective 04/17/2026 10:52

Public safety alert, emergency alert, and weather alert Description: * WHAT...North winds 25 to 35 mph with gusts up to 50 mph. * WHERE...In Arizona, Lake Havasu and Fort Mohave and Lake Mohave - AZ side. In California, San Bernardino County-Upper Colorado River Valley. In Nevada, Lake Mohave - NV side. * WHEN...Until 5 PM PDT /5 PM MST/ this afternoon. * IMPACTS...Winds this strong can make driving difficult, especially for high-profile vehicles, particularly along east-west
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