Severe

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Kittitas Valley. * WHEN...From 11 PM this evening to 9 AM PDT Monday. * 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...Flooding caused by excessive rainfall is expected. * WHERE...South Central Alexander County in the piedmont of North Carolina... North Central Catawba County in the piedmont of North Carolina... West Central Iredell County in the piedmont of North Carolina... * WHEN...Until 200 PM EDT Monday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 228 PM EDT, Catawba River levels continued to rise with the

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest Arizona, including the following areas, Hualapai Mountains, Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side, Northwest Deserts and Northwest Plateau and Nevada, including the following areas, Lake Mead - NV side, Lake Mohave - NV side, Las Vegas Valley, Lincoln County, Northeast Clark County, Sheep Range, Southern Clark County, Spring

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Central Burke County in western North Carolina... * WHEN...Until 800 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 247 PM EDT, Flooding along the Johns and Catawba Rivers continued. The Johns river gage at Corpening Bridge road remaining above flood stage but was falling. Floodwaters

After a widespread 1.50 to 2.50 inches of rainfall, expect a bit of a lull this afternoon before another round of more concentrated shower activity forms near the area low of pressure associated with Isaias. Some flooding concerns will accompany this feature given earlier soaking rains. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, northern, and northwest Virginia, including the following areas, in central Virginia, Albemarle,

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...West Central Alexander County in the piedmont of North Carolina... Northwestern Catawba County in the piedmont of North Carolina... East Central Burke County in western North Carolina... Southern Caldwell County in western North Carolina... * WHEN...Until 800 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS...

At 312 PM EDT, a severe thunderstorm was located near Halifax, moving northeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Roanoke Rapids, Weldon, South Weldon, Airlie, Rosemary, Roanoke Rapids Lake, and Lake Gaston. This includes Interstate 95 between Mile Markers 173 and 168. A Tornado Watch remains in effect until 500 PM EDT for central North Carolina.

...The Flood Warning continues for the following rivers in South Carolina... Congaree River At Carolina Eastman affecting Richland, Calhoun and Lexington Counties. Congaree River At Congaree River at Congaree NP Near Gadsden affecting Richland and Calhoun Counties. * WHAT...Moderate flooding is forecast. * WHERE...Congaree River at Carolina Eastman. * WHEN...From Monday evening to Thursday evening. * IMPACTS...At 115.0 feet, Flooding occurs in low lying areas of the Carolina Eastman Facility and at the Congaree National Park. At

...The Flood Warning continues for the following rivers in South Carolina... Congaree River At Carolina Eastman affecting Richland, Calhoun and Lexington Counties. Congaree River At Congaree River at Congaree NP Near Gadsden affecting Richland and Calhoun Counties. * WHAT...Minor flooding is forecast. * WHERE...Congaree River at Congaree River at Congaree NP Near Gadsden. * WHEN...From Tuesday afternoon to Friday evening. * IMPACTS...At 15.0 feet, Flooding begins in the Congaree National

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Eastern Magic Valley, Shoshone/Lava Beds, and Arco/Mud Lake Desert. * WHEN...From 3 AM to 9 AM MDT Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Cloud cover and precipitation will make the temperature forecast a bit tricky overnight so confidence is less than desired and some spots in these zones will likely stay above