Moderate

* WHAT...Sub-freezing temperatures as low as 26 expected late<br /> 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<br /> sensitive vegetation and possibly damage unprotected outdoor<br /> plumbing.<br /> 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<br /> tonight and early Tuesday. * WHERE...Cameron, Clearfield, Elk, McKean, Northern Centre,<br /> Northern Clinton, and Warren Counties. * WHEN...From midnight tonight to 11 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 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<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.

* WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Southwest corner of Imperial County. * WHEN...From 3 PM Tuesday to 8 AM PDT Wednesday. * IMPACTS...Difficult driving conditions, especially for larger<br /> vehicles traveling along roads with crosswinds. Light, unsecured<br /> objects may become airborne.<br /> Winds this strong can make driving difficult, especially for high<br /> profile vehicles. In addition, strong winds over desert areas could result in briefly<br />

The combination of clear skies, cool and dry air, and light winds<br /> will allow temperatures to fall into the mid 30s in sheltered and<br /> low lying rural areas. This will be cold enough for patchy frost<br /> formation. Those with sensitive vegetation should consider taking<br /> precautions tonight.

* WHAT...Blowing snow. Winds gusting as high as 40 mph. * WHERE...Bering Strait Coast and Diomede. * WHEN...Until 10 PM AKDT this evening. * IMPACTS...Travel could be difficult. Areas of blowing snow could<br /> significantly reduce visibility to 1/2 mile or less at times.<br /> Use caution while traveling, especially in open areas.

* WHAT...Snow and blowing snow. Additional snow accumulations up to<br /> one inch. Winds gusting as high as 30 mph. * WHERE...Eastern Norton Sound and Nulato Hills. * WHEN...Until 10 PM AKDT this evening. * IMPACTS...Travel could be difficult. Areas of blowing snow could<br /> significantly reduce visibility to 1/2 mile or less at times.<br /> Slow down and use caution while traveling.

* WHAT...For the Lake Wind Advisory, southwest winds 15 to 20 mph<br /> with gusts up to 30 mph and waves up to 3 feet. For the Wind<br /> Advisory, southwest winds 20 to 30 mph with gusts up to 45 mph,<br /> mainly east of Fallon, including US-50. Wave heights on Pyramid<br /> Lake of 1 to 3 feet. * WHERE...Western Nevada Basin and Range including Pyramid Lake. * WHEN...For the Lake Wind Advisory, until 10 PM PDT this evening.<br /> For the Wind Advisory, from 11 AM to 11 PM PDT Tuesday.

* WHAT...Southwest winds 20 to 25 mph with gusts up to 40 mph. * WHERE...Greater Reno-Carson City-Minden Area. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Small boats, kayaks and paddle boards will be prone to<br /> capsizing and should remain off lake waters until conditions<br /> improve.<br /> Check lake conditions before heading out and be prepared for a<br /> sudden increase in winds and wave heights. Consider postponing<br /> boating activities on the lake until a day with less wind.

* WHAT...Southwest winds 10 to 20 mph with gusts up to 35 mph on<br /> northeast California and eastern Sierra lakes, including Lake<br /> Tahoe where wave heights of 1 to 3 feet are expected. * WHERE...Greater Lake Tahoe Area, Lassen-Eastern Plumas-Eastern<br /> Sierra Counties, and Mono County. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Small boats, kayaks and paddle boards will be prone to<br /> capsizing and should remain off lake waters until conditions<br /> improve. * ADDITIONAL DETAILS...Impacted lakes include Eagle Lake, Lake<br />