Severe

Significant threat to life or property

Illinois, Wisconsin Flood Warning | Effective 05/04/2026 02:21

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Afton affecting Rock and Winnebago Counties. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until Wednesday evening. * IMPACTS...At 10.0 feet, Floodwaters affect the property of a home on South Christian Road on the east side of the river in the Afton

Wisconsin Flood Warning | Effective 05/04/2026 02:21

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Afton affecting Rock and Winnebago Counties. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River near Lake Koshkonong. * WHEN...Until early Wednesday morning. * IMPACTS...At 10.5 feet, Floodwaters reach Oxbow Bend Road in the area of the gage on the east side of the lake.

Wyoming Winter Storm Warning | Effective 05/04/2026 01:41

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 16 inches. * WHERE...South Laramie Range and Foothills including the Interstate 80 Summit between Cheyenne and Laramie. * WHEN...From 9 PM this evening to noon MDT Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The weight of the heavy, wet snow on tree limbs and powerlines and could cause sporadic power outages. If you must travel, keep an extra flashlight, food, and water in

Wyoming Winter Storm Warning | Effective 05/04/2026 01:41

* WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain along Interstate 80. * WHEN...From 9 PM this evening to noon MDT Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick, slushy, and hazardous. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for

Wyoming Winter Storm Warning | Effective 05/04/2026 01:41

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 18 inches mainly above 9000 ft in elevation and on the northern and eastern sides of the range. * WHERE...Snowy Range. * WHEN...From 9 PM this evening to noon MDT Wednesday. * IMPACTS...Outdoor recreation could become life threatening to those caught unprepared for severe winter conditions. Hikers and snowmobilers may easily become disoriented. Frostbite and hypothermia can develop quickly.

Wyoming Winter Storm Watch | Effective 05/04/2026 01:41

* WHAT...Heavy snow possible. Total snow accumulations between 4 and 8 inches possible. * WHERE...Central Laramie County. * WHEN...From late tonight through Wednesday morning. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes. Monitor the latest forecasts for updates on this situation.

Michigan Flood Warning | Effective 05/04/2026 00:26

* WHAT...Flooding caused by recent rain and snowmelt continues. * WHERE...A portion of northern Michigan, including the following counties, Cheboygan and Emmet. * WHEN...Until 800 PM EDT Thursday. * IMPACTS...Flooding is occurring. Roads and structures near lakes and rivers will continue to see high water levels with slow improvement expected into next week. * ADDITIONAL DETAILS... - At 325 AM EDT, Flooding continues across the warned area, which encompasses a large portion of Emmet and Cheboygan counties.

Alaska Flood Warning | Effective 05/04/2026 00:32

* WHAT...Flooding caused by snowmelt is occurring. * WHERE...East of Parks Highway Mp288. * WHEN...Until noon AKDT Tuesday. * IMPACTS...Flooding low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 1125 PM AKDT, Rapid snowmelt is causing flooding. Overflowing poor drainage areas have already caused flooding, especially near Fish Creek. Additional rain showers Monday afternoon and evening may bring rainfall amounts up to 0.2 inches. - Rescue operations are ongoing.

Colorado Winter Storm Watch | Effective 05/03/2026 23:51

* WHAT...Heavy snow likely. Total snow accumulations between 6 and 18 inches possible. * WHERE...The Mountains of Summit County, the Mosquito Range, the Indian Peaks Wilderness, and the Southern Front Range foothills. Heaviest snowfall favored along and north of I-70. * WHEN...From Tuesday morning through Wednesday afternoon. * IMPACTS...Heavy snow will accumulate on tree branches and powerlines, possibly causing them to break and lead to power outages. Travel could be very difficult. The hazardous conditions

Colorado Winter Storm Warning | Effective 05/03/2026 23:51

* WHAT...Heavy snow expected. Total snow accumulations between 10 and 24 inches, heaviest above 8,000 feet. * WHERE...Rocky Mountain National Park, the Medicine Bow Range, and the northern Front Range foothills, including Red Feather Lakes, Estes Park, and Nederland. * WHEN...From midnight tonight to 3 PM MDT Wednesday. Heaviest Tuesday morning through Tuesday night. * IMPACTS...Heavy snow will accumulate on tree branches and powerlines, possibly causing them to break and lead to power
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