Severe

Significant threat to life or property

Wisconsin Flood Warning | Effective 04/18/2026 21:33

Public safety alert, emergency alert, and weather alert Description: ...The Flood Warning is extended for the following rivers in Wisconsin... Wisconsin River at Muscoda affecting Richland, Grant and Iowa Counties. ...The Flood Warning continues for the following rivers in Wisconsin... Yellow River at Necedah affecting Juneau County. Wisconsin River at Castle Rock Dam affecting Juneau and Adams Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast.

Iowa, Wisconsin Flood Watch | Effective 04/18/2026 21:33

Public safety alert, emergency alert, and weather alert Description: ...The Flood Watch continues for the following rivers in Wisconsin... Iowa... Mississippi River at McGregor affecting Clayton, Crawford, Allamakee and Grant Counties. * WHAT...Flooding is possible. * WHERE...Mississippi River at McGregor. * WHEN...From late Monday night to Wednesday evening. * IMPACTS...At 16.0 feet, The Washington Street Bridge to Saint Feriole Island begins to flood and is closed. Pumping operations are underway.

Oklahoma Fire Weather Watch | Effective 04/18/2026 21:43

Public safety alert, emergency alert, and weather alert Description: The Fire Weather Watch has been replaced. Please see the latest information from NWS Norman OK on this developing situation. Instruction: 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 will contribute to extreme fire behavior.

Oklahoma Red Flag Warning | Effective 04/18/2026 21:43

Public safety alert, emergency alert, and weather alert Description: The National Weather Service in Norman has issued a Red Flag Warning for portions of northwestern Oklahoma, which is in effect from noon to 8 PM CDT Sunday. * WINDS...Southwest 15 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Up to 77. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5).

Maryland, Virginia, West Virginia Freeze Watch | Effective 04/18/2026 20:59

Public safety alert, emergency alert, and weather alert Description: * WHAT...Sub-freezing temperatures as low as 26 to 30 degrees possible. * WHERE...Portions of central, north central, northeast, and northern Maryland, central, northern, northwest, and western Virginia, and panhandle West Virginia. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Maryland, Virginia Freeze Watch | Effective 04/18/2026 20:59

Public safety alert, emergency alert, and weather alert Description: * WHAT...Sub-freezing temperatures as low as 29 to 32 degrees possible, especially northwest of I-95. * WHERE...In Maryland, Central and Southeast Howard, Central and Southeast Montgomery, Southeast Harford, and Southern Baltimore Counties. In Virginia, Albemarle, Nelson, Spotsylvania, Central and Southeast Prince William/Manassas/Manassas Park, Fairfax, and Stafford Counties. * WHEN...From late Monday night through Tuesday morning.

Colorado Freeze Watch | Effective 04/18/2026 21:05

Public safety alert, emergency alert, and weather alert Description: * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 23. For the Freeze Watch, sub-freezing temperatures as low as 30 possible. * WHERE...Central Yampa River Basin and Central Colorado River Basin Counties. * WHEN...For the Freeze Warning, until 9 AM MDT Sunday. For the Freeze Watch, from Sunday evening through Monday morning. * IMPACTS...Frost and freeze conditions will kill crops, other

Oklahoma, Texas Red Flag Warning | Effective 04/18/2026 20:58

Public safety alert, emergency alert, and weather alert Description: * WINDS...Southwest 15 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 7 percent. * TEMPERATURES...In the 70s. * IMPACTS...Any fires that develop will have the potential to spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Critical...3 (out of 5). FIRE ENVIRONMENT...7 (out of 10). Instruction: A Red Flag Warning means that critical fire weather conditions

Wisconsin Flood Warning | Effective 04/18/2026 20:23

Public safety alert, emergency alert, and weather alert Description: ...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Rock and Winnebago Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County.

Wisconsin Flood Warning | Effective 04/18/2026 20:23

Public safety alert, emergency alert, and weather alert Description: ...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Rock and Winnebago Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County.
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