Expected

* WHAT...Sub-freezing temperatures as low as 28 degrees expected. * WHERE...In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. * WHEN...From 2 AM 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.

* WHAT...Sub-freezing temperatures as low as 24 degrees expected. * WHERE...Portions of central, northern, northwest, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From midnight tonight 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.

* AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Roberts, Clark, Codington, Grant, Hamlin and Deuel. * WINDS...Southwest 15 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 21 percent. * IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress. 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 can

* WHAT...Sub-freezing temperatures as low as 29 expected, especially in outlying areas away from larger bodies of water. * WHERE...Portions of DC, central, northern, and southern Maryland, and central and northern Virginia. * WHEN...From 2 AM to 10 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. To prevent water pipes from freezing, wrap or drain or allow them to

* WHAT...Sub-freezing temperatures as low as 26 to 30 degrees expected. * WHERE...Portions of central, north central, northeast, and northern Maryland, central, northern, northwest, and western Virginia, and panhandle West Virginia. * WHEN...From 2 AM to 10 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.

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Northern Lander and Northern Eureka, Northern Elko, Ruby Mountains and East Humboldt Range in Elko, South Central Elko, Southeastern Elko, and Southwest Elko Counties. * WHEN...From 10 AM to 11 PM PDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Blowing dust may reduce the visibility to one mile or less in spots.

* WHAT...South winds 35 to 45 mph with gusts up to 60 mph possible. * WHERE...White Pine, Southern Lander and Southern Eureka, Northeastern Nye, and Northwestern Nye Counties. * WHEN...From 10 AM to 11 PM PDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Winds this strong can make driving difficult, especially for high profile vehicles. Blowing dust may reduce the visibility to one mile or less in spots. Remain in the lower levels of your home during the windstorm, and

* WHAT...Sub-freezing temperatures as low as 26 expected late tonight and early Tuesday. * WHERE...A portion of central Pennsylvania. * WHEN...From midnight tonight 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 and vegetation from the cold. Unprotected early season plantings may freeze.

* WHAT...Sub-freezing temperatures as low as 22 expected late tonight and early Tuesday. * WHERE...Cameron, Clearfield, Elk, McKean, Northern Centre, Northern Clinton, and Warren Counties. * WHEN...From midnight tonight to 11 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 and vegetation from the cold. Unprotected early season plantings may freeze.

* WHAT...Sub-freezing temperatures as low as 23 expected. * WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. * WHEN...From 8 PM this evening to 10 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.