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U.S. Weather Update 4.15.26

| April 15, 2026 | By

 Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. 

Washington

Winter Storm Warning remains in effect until 5 am Thursday. 

  • Total snow accumulations between 8 to 18 inches.
  • Winds gusting as high as 40 mph. 

Oregon

Winter Storm Warning remains in effect until 5 am Thursday.

  • Total snow accumulations between 6 to 12 inches. 

  • Winds gusting as high as 45 mph. 

Montana

Winter Storm Warning remains in effect until 6 am Friday.

  • Total snow accumulation between 1 and 2 feet. 

  • Winds gusting as high as 55 mph.

Wyoming

Winter Storm Warning remains in effect until 6 am Friday.

  • Total snow accumulation between 1 and 2 feet. 

  • Winds gusting as high as 55 mph.

Iowa

Flood Warning remains in effect until Thursday morning.

  • Major flooding is occurring. 

Minnesota

Flood Warning remains in effect until further notice. 

  • Minor flooding is occurring.  

Wisconsin

Flood Warning remains in effect until further notice. 

  • Flooding caused by excessive rainfall.  

Michigan

Flood Warning remains in effect until further notice. 

  • Flooding caused by rain and snowmelt continues.

Missouri

Flood Warning remains in effect until further notice.

  • Minor flooding is occurring.

Illinois

Flood Warning remains in effect until further notice. 

  • Minor flooding is occurring.   

New York

Flood Warning remains in effect until further notice.

  • Minor flooding is occurring. 

Additional Winter Weather Advisory included but not limited to: Oregon, Washington, Idaho, and, Montana.

Additional Wind Advisory included but not limited to: California, Oregon, Idaho, Nevada, Arizona, New Mexico, Colorado, Wyoming, Montana, South Dakota, Nebraska, Kansas, Oklahoma, Texas, Georgia, and North Carolina.

Additional Dense Fog included but not limited to: North Dakota, South Dakota, Minnesota, Wisconsin, Michigan, Mississippi, Alabama, Florida, New Hampshire, and Maine. 

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