Moderate

* WHAT...Sub-freezing temperatures expected across much of northern lower Michigan along and east of US-131 tonight. Low-lying interior areas could see low temperatures in the mid to upper 20s. Above-freezing low temperatures are possible along the immediate shorelines. * WHERE...A portion of Northern Lower Michigan. * WHEN...Until 8 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could damage or kill crops and other sensitive vegetation if left unprotected. Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Portions of northwest North Carolina, southwest Virginia, and southeast West Virginia. * WHEN...Until 9 AM EDT Sunday. * 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.

* WHAT...Temperatures falling into the lower to middle 30s. * WHERE...Clare and Osceola Counties. * WHEN...Until 8 AM EDT Sunday. * 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.

Relative Humidities of 30 percent or less can be expected for 4 or more hours Sunday afternoon into the evening. Winds will be W at 3 to 8 mph. With dry fuels, high fire danger conditions can be expected. Please refer to your local burn permitting authorities whether you may burn outdoors. If you do burn outside, use extreme caution.

Clouds will clear this evening, allowing temperatures to fall by daybreak Sunday into the mid to upper 30s across portions of southwest Indiana including Dubois County as well as portions of central Kentucky along and west of the Natcher Parkway. Patchy frost is forecast...mainly in protected valleys...for Sunday morning. Consider covering outdoor plants or bringing them indoors should frost form in the morning.

* WHAT...Sub-freezing temperatures as cold as the upper 20's are expected. * WHERE...Portions of north-central and northeast Ohio and northwest Pennsylvania. * WHEN...Until 9 AM EDT Sunday. * 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.

At 619 PM PDT, Doppler radar was tracking a strong thunderstorm 12 miles southeast of Gasquet, or 17 miles east of Jedediah Smith State Park, moving west at 25 mph. HAZARD...Winds in excess of 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. This storm will remain over mainly rural areas of northeastern Del Norte County. If outdoors, consider seeking shelter inside a building.

At 622 PM PDT, Doppler radar was tracking a strong thunderstorm 11 miles east of Gasquet, or 18 miles east of Jedediah Smith State Park, moving northwest at 25 mph. HAZARD...Winds in excess of 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Gasquet. If outdoors, consider seeking shelter inside a building.

* WHAT...West to Southwest winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Mojave Desert Slopes. * WHEN...From 11 AM Sunday to 8 AM PDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Highways impacted included, but are not limited to, State Routes 14, 58, and 178, as well as U.S. 395. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

* WHAT...West to southwest winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Kern River Valley. * WHEN...From 11 AM Sunday to 11 PM PDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.