Moderate

* WHAT...Sub-freezing temperatures as low as 30 degrees expected. * WHERE...In Maryland, Central and Eastern Allegany County. In Virginia, Central Virginia Blue Ridge, Northern Virginia Blue Ridge, Shenandoah, Augusta, and Rockingham Counties. In West Virginia, Eastern Grant, Eastern Mineral, Hampshire, and Hardy Counties. * WHEN...From 2 AM to 9 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

* WHAT...Sub-freezing temperatures as low as 28 degrees expected. * WHERE...In Maryland, Eastern Garrett, Extreme Western Allegany, and Western Garrett Counties. In Virginia, Eastern Highland and Western Highland Counties. In West Virginia, Eastern Pendleton, Western Grant, Western Mineral, and Western Pendleton Counties. * WHEN...From 2 AM to 9 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

At 1206 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 10 miles southeast of Fowlers Bluff to 28 miles southeast of Horseshoe Point to 40 miles west of Homosassa. Movement was east at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Williston Highlands, Otter Creek, and Lebanon. If outdoors, consider seeking shelter inside a building.

* WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...A portion of central Pennsylvania. * WHEN...From 11 PM this evening to 9 AM EDT Sunday. * IMPACTS...Frost and freeze conditions could kill crops and other sensitive vegetation. Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation.

At 1219 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Archer to near Williston Municipal Airport to 29 miles west of Homosassa. Movement was east at 40 mph. HAZARD...Wind gusts around 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Gainesville, Ocala, Palatka, Rainbow Lakes Estates, Crescent City, Interlachen, Pomona Park, East Palatka, Salt Springs, and Citra.

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 Parkwy. 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.

At 1132 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles southeast of Horseshoe Point to 18 miles southwest of Fowlers Bluff to 40 miles south of Steinhatchee. Movement was east at 35 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Chiefland and Fowlers Bluff. If outdoors, consider seeking shelter inside a building.

At 1103 AM EDT, Doppler radar was tracking a strong thunderstorm near Andrews, or 7 miles west of Trenton, moving east at 40 mph. HAZARD...Wind gusts around 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Trenton, Bell, Alachua, High Springs, Archer, Fort White, Upland Pines, Providence, and Newberry. If outdoors, consider seeking shelter inside a building.

At 1115 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles north of Andrews to near Horseshoe Point. Movement was southeast at 10 mph. HAZARD...Wind gusts up to 50 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Horseshoe Point, Suwannee, Horseshoe Beach, Shired Island, Old Town,

* WHAT...Dangerous rip currents and strong longshore currents in the surf zone. * WHERE...The beaches north of Cape Hatteras. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Strong longshore currents will create dangerous swimming conditions. * ADDITIONAL DETAILS...The most likely time for strong rip currents to occur is a couple hours either side of low tide, which will occur around 2 PM this afternoon.