Severe

Significant threat to life or property

Wisconsin Flood Warning | Effective 04/20/2026 03:00

...The National Weather Service in Milwaukee/Sullivan WI has issued a Flood Warning for the following rivers in Wisconsin... Fox River At Princeton affecting Green Lake County. * WHAT...Minor flooding is forecast. * WHERE...Fox River at Princeton. * WHEN...Until Thursday morning. * IMPACTS...At 9.5 feet, Floodwaters are in the back yards of some homes along South Farmer, Jefferson, North Mechanic and West Water Streets in Princeton. There is general minor flooding in the Princeton area. * ADDITIONAL DETAILS...

Nebraska, Wyoming Red Flag Warning | Effective 04/20/2026 01:50

* AFFECTED AREA...Fire weather zones 417, 418, and 430 through 437. * WIND...West to northwest winds with gusts between 25 and 30 mph on Monday. * HUMIDITY...5 to 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

California Winter Storm Watch | Effective 04/20/2026 01:50

* WHAT...Heavy snow possible. Total snow accumulations 3 to 5 inches above 7,000 feet, with 12 to 18 inches possible at the highest elevations of the Sierra Nevada. Winds could gust as high as 75 mph along the Sierra crest. * WHERE...Kaiser to Rodgers Ridge, Kings Canyon NP, Sequoia NP, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...From late tonight through Wednesday afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will

Wisconsin Flood Warning | Effective 04/20/2026 01:57

Public safety alert, emergency alert, and weather alert Description: ...The National Weather Service in Milwaukee/Sullivan WI has issued a Flood Warning for the following rivers in Wisconsin... Rock River At Newville affecting Rock County. * WHAT...Minor flooding is occurring. * WHERE...Rock River at Newville. * WHEN...From early this morning until further notice. * IMPACTS...At 6.5 feet, Floodwaters are in the back yards of homes and businesses near east Mallwood Road Drive in Newville. * ADDITIONAL DETAILS...

Illinois Flood Warning | Effective 04/20/2026 01:42

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until 100 PM CDT Saturday. * IMPACTS...Numerous roads, yards, structures, and park land are expected to flood along the Fox River Chain of Lakes. * ADDITIONAL DETAILS... - At 336 AM CDT, River gauges along the Fox River Chain of Lakes indicated slowly-rising water levels due to recent rainfall across the area. As of 3:15 AM Monday, the gauge on

Nebraska Red Flag Warning | Effective 04/20/2026 01:14

The National Weather Service in North Platte has issued a Red Flag Warning from noon CDT /11 AM MDT/ today to 9 PM CDT /8 PM MDT/ this evening. * AFFECTED AREA...Fire Weather Zone 219 Loess Plains. * TIMING...Noon CDT/11 AM MDT through 9 PM CDT/8 PM MDT. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 8 to 12% across much of the Sandhills and western Nebraska, and 12 to 20% across central into north central Nebraska. * TEMPERATURES...Highs in the upper 70s to lower 80s. * LIGHTNING...None expected.

Nebraska Red Flag Warning | Effective 04/20/2026 01:14

The National Weather Service in North Platte has issued a Red Flag Warning from noon CDT /11 AM MDT/ today To 9 PM CDT /8 PM MDT/ this evening. * AFFECTED AREA...Fire Weather Zone 204 Eastern Panhandle/Crescent Lake NWR, Fire Weather Zone 206 Sandhills/Valentine NWR/Nebraska National Forest, Fire Weather Zone 208 Niobrara Valley/Fort Niobrara NWR/Samuel R McKelvie National Forest and Fire Weather Zone 209 Loup Rivers Basin. * TIMING...Noon CDT/11 AM MDT through 9 PM CDT/8 PM MDT.

Minnesota Red Flag Warning | Effective 04/20/2026 01:15

The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM this morning to 8 PM CDT this evening. * AFFECTED AREA...In Minnesota, Northern Cook and Lake. * WINDS...Southwest 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 20 percent. * IMPACTS...Any fires that ignite could spread rapidly and become difficult to control. Outdoor burning is not recommended. A Red Flag Warning means that critical fire weather conditions

Minnesota Red Flag Warning | Effective 04/20/2026 01:15

The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 11 AM this morning to 8 PM CDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Minnesota, Koochiching, North St. Louis, North Itasca, Central St. Louis, North Cass, South Itasca, South Cass, Crow Wing, Northern Aitkin, South Aitkin, Carlton and South St. Louis and Pine. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.

Wyoming Red Flag Warning | Effective 04/20/2026 00:02

* AFFECTED AREA: In Central WY...Fire Weather Zones 280 and 289. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater. * IMPACTS: Low Humidities and Strong Gusty Winds could cause erratic fire behavior. * WIND: West 10 to 20 mph with gusts of 30 to 35 mph. * HUMIDITY: As low as 9 percent. A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong
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