Moderate

* WHAT...Sub-freezing temperatures between 28 and 32 degrees<br /> expected. * WHERE...Shoshone/Lava Beds, Arco/Mud Lake Desert, Lower Snake<br /> River Plain, and Upper Snake River Plain. * WHEN...Until 9 AM MDT this morning. * 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 temperatures in the upper 80s to around 90 and<br /> high humidity will result in the heat index reaching 95 to 100<br /> degrees this afternoon. If planning to be outdoors for extended periods today, drink<br /> plenty of water, wear light and loose clothing, and take frequent<br /> breaks.

* WHAT...High temperatures up to 103 expected. * WHERE...A portion of central California. * WHEN...From 11 AM this morning to 11 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...-Moderate Heat Risk<br /> Drink plenty of fluids, stay in an air-conditioned room, stay out of<br /> the sun, and check up on relatives and neighbors.

Webcam and satellite imagery is showing fog across Delta County<br /> this morning, with some spots getting down to around 1/4 mile.<br /> Commuters and travelers should slow down and use their low beam<br /> headlights in order to navigate the fog safely.

* WHAT...Strong longshore currents in the surf zone. * WHERE...The beaches from Cape Hatteras to Cape Lookout and<br /> beaches from Surf City to Beaufort Inlet. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...Strong longshore currents will create dangerous<br /> swimming conditions.<br /> Strong longshore currents can sweep swimmers and surfers into rip<br /> currents, piers, jetties and other hazardous areas. In many<br /> cases, the longshore current is strong enough to prevent swimmers<br />

* WHAT...Dangerous rip currents and breaking waves due to<br /> elevated surf of 3 to 6 feet with local sets to 7 feet on<br /> south facing beaches. * WHERE...Ventura County Beaches. * WHEN...Through this evening. * IMPACTS...There is an increased risk of ocean drowning. Rip<br /> currents can pull swimmers and surfers out to sea. Waves can<br /> wash people off beaches and rocks, and capsize small boats<br /> nearshore.<br /> Remain out of the water due to hazardous swimming conditions, or<br />

* WHAT...Strong south to north longshore current. There is also a<br /> Moderate Risk of rip currents expected. * WHERE...In North Carolina, Coastal Pender and Coastal New<br /> Hanover Counties. In South Carolina, Coastal Horry and Coastal<br /> Georgetown Counties. * WHEN...Through this evening. * IMPACTS...Longshore currents can sweep swimmers and surfers<br /> into rip currents, piers, jetties, and other hazardous areas.<br /> It may sweep swimmers off their feet, making it difficult to<br /> return to shore.<br />

At 314 AM CDT, Doppler radar was tracking a strong thunderstorm over<br /> Bradshaw, or 7 miles west of York, moving northeast at 35 mph. HAZARD...Wind gusts of 50 to 55 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around<br /> unsecured objects. Minor hail damage to vegetation is<br /> possible. This strong thunderstorm will be near...<br /> York around 320 AM CDT. This includes Interstate 80 between mile markers 341 and 365.<br /> If outdoors, consider seeking shelter inside a building.

* WHAT...High wave action, strong currents, and dangerous<br /> swimming conditions expected. Piers may be heavily swamped by<br /> waves. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren<br /> counties. * WHEN...From this evening through Friday morning. * IMPACTS...Strong currents can pull swimmers into deeper water<br /> and high waves can sweep people off piers. * ADDITIONAL DETAILS...Winds will increase this evening out of the<br /> southwest building waves to 3 to 6 feet tonight. The waves will<br />

* WHAT...Heat index values around 105 degrees expected. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and<br /> central, north central, northwest, south central, southeast,<br /> southwest, and west central Mississippi. * WHEN...From 11 AM Friday to 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat<br /> illnesses.<br /> Drink plenty of fluids, stay in an air-conditioned room, stay out of<br /> the sun, and check up on relatives and neighbors.