Moderate

* WHAT...Sub-freezing temperatures expected. * WHERE...Portions of southeast Maryland and central, east central,<br /> north central, and south central Virginia. * WHEN...From 2 AM to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other<br /> sensitive vegetation and possibly damage unprotected outdoor<br /> plumbing.<br /> Take steps now to protect tender plants from the cold.

* WHAT...Sub-freezing temperatures expected. * WHERE...Portions of northeast North Carolina and central, east<br /> central, south central, and southeast Virginia. * WHEN...From 2 AM to 9 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other<br /> sensitive vegetation and possibly damage unprotected outdoor<br /> plumbing.<br /> Take steps now to protect tender plants from the cold.

The combination of low relative humidity values and southerly<br /> winds will result in elevated fire weather conditions for this<br /> afternoon across portions of northeast Iowa. Afternoon relative<br /> humidity values will fall to around 25 to 30 percent with winds of<br /> 10 to 20 mph, gusting to 25 to 30 mph. Under these conditions, fires will start and spread easily.<br /> Please exercise caution with any activities that involve outdoor<br /> fires or create sparks, including campfires, grilling, and<br />

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Delaware, Fairfield, Hocking, and Licking Counties. * WHEN...From 11 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other<br /> sensitive vegetation and possibly damage unprotected outdoor<br /> plumbing.<br /> Take steps to protect tender plants from the cold.

WHAT...Strong winds from the south/southeast at 15 to 20 mph with<br /> gusts to 25-30 mph, dry surface vegetation, and low relative<br /> humidity between 25 and 30 percent will lead to elevated fire<br /> danger today. WHERE...Northern into parts of north-central Iowa. WHEN...11am until 7pm. IMPACTS...Any fires that ignite will spread rapidly. PREPAREDNESS AND PRECAUTIONARY ACTIONS...Burning is discouraged under<br /> these conditions. Also, take care to prevent the start of accidental<br /> fires when smoking or operating vehicles around dry vegetation.

* WHAT...Sub-freezing temperatures as low as 21 expected. * WHERE...Portions of north central, northeast, and northwest Ohio<br /> and northwest Pennsylvania. * WHEN...From 8 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other<br /> sensitive vegetation and possibly damage unprotected outdoor<br /> plumbing.<br /> Take steps now to protect tender plants from the cold.

At 1119 AM EDT, a trained weather spotter reported a shower with<br /> small hail near Medford. A larger cluster of showers also capable of<br /> producing small hail was off to the south from Sayville to Shirley,<br /> moving east at 25 mph. HAZARD...Pea size hail. SOURCE...Trained weather spotter. IMPACT...Minor hail damage to outdoor objects is possible. Locations impacted include...<br /> Riverhead, Shirley, Medford, Manorville, Patchogue, Middle Island,<br /> Center Moriches, Westhampton, Sayville, Mastic, Mastic Beach,<br />

At 1119 AM EDT, a trained weather spotter reported a shower with<br /> small hail near Medford. A larger cluster of showers also capable of<br /> producing small hail was off to the south from Sayville to Shirley,<br /> moving east at 25 mph. HAZARD...Pea size hail. SOURCE...Trained weather spotter. Locations impacted include...<br /> Riverhead, Shirley, Medford, Manorville, Patchogue, Middle Island,<br /> Center Moriches, Westhampton, Sayville, Mastic, Mastic Beach,<br /> Yaphank, Brookhaven National Laboratory, East Patchogue, and<br />

The combination of dry fuels, low relative humidity, and gusty<br /> winds will lead to increased fire danger today. Relative humidity<br /> values will drop to around 25 percent, accompanied by northwest<br /> winds of 10 to 20 mph with gusts to 25 mph.<br /> Please refer to your local burn permitting authorities on whether<br /> you can burn. If you do, you are advised to use extreme caution.

* WHAT...Dangerous rip currents. * WHERE...Gulf-facing beaches, including the Matagorda<br /> Peninsula, Brazoria County beaches, Galveston Island and the<br /> Bolivar Peninsula. * WHEN...Through late Tuesday night. * IMPACTS...Rip currents can sweep even the best swimmers away<br /> from shore into deeper water.<br /> Swim near a lifeguard and away from rocks, jetties, and piers. If<br /> caught in a rip current, relax and float. Don't swim against the<br /> current. If able, swim in a direction following the shoreline. If<br />