Expected

* WHAT...Low temperatures of 28 to 32 in sheltered valleys will allow for a light freeze tonight. Taller ridges should remain above freezing, but patchy frost is still possible. * WHERE...Portions of east central, northeast, and southeast Kentucky. * WHEN...From 11 PM this evening to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Take steps now to protect tender plants from the cold.

* WHAT...Temperatures in the mid to upper 20s expected. * WHERE...Portions of northwest North Carolina, southwest Virginia, and southeast West Virginia. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation, and they may possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold.

* WHAT...Temperatures near 30 expected. * WHERE...Caswell, Rockingham, Stokes, Surry, Wilkes, and Yadkin counties in northwest North Carolina. * WHEN...From midnight tonight to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Take steps now to protect tender plants from the cold.

...Forecast flooding changed from Moderate to Major severity for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, Kane and McHenry Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery...Major flooding is forecast. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge.

* WINDS...South-southwesterly with sustained speeds near 15 to 20 mph and gusts near 25 to 30 mph. * RELATIVE HUMIDITY...As low as 10 to 15 percent for areas west of Highway 281, as low as 15 to 20 percent for areas along and east of Highway 281. * IMPACTS...Any fire that develops will spread quickly. 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

* 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 2 AM Tuesday to 5 PM PDT Wednesday. * IMPACTS...Travel could be very difficult to impossible. The

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of southeast Ohio and central, northeast, northern, southeast, southern, and western West Virginia. * WHEN...From 11 PM this evening to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Additional information can be found at https://www.weather.gov/rlx as well as on our X and Facebook pages.

* WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Portions of northeast Kentucky, southeast Ohio, southwest Virginia, and southern and western West Virginia. * WHEN...From 11 PM this evening to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. Take steps now to protect tender plants from the cold. Additional information can be found at https://www.weather.gov/rlx as well as on our X and Facebook pages.

...Forecast flooding changed from Minor to Moderate severity for the following rivers in Illinois... Illinois River near Havana affecting Cass, Fulton and Mason Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees.

...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Wisconsin... Yellow River at Necedah affecting Juneau County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Yellow River at Necedah. * WHEN...Until early Thursday morning. * ADDITIONAL DETAILS... - At 10:00 AM CDT Monday the stage was 16.8 feet. - Bankfull stage is 13.0 feet. - Recent Activity...The maximum river stage in the 24 hours