Moderate

* WHAT...Hot conditions with high temperatures up to 90 to 100 degrees and low temperatures down to 60 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Middle Chehalis River Valley, Lowlands of Lewis and Southern Thurston Counties, Olympia and Southern Puget Sound, and Willapa and Black Hills. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat,

* WHAT...Hot conditions with high temperatures up to 90 to 95 degrees and low temperatures down to 60 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Foothills of the Western and Southern Olympic Peninsula, Lake Crescent Area Including US 101, and Lower Chehalis River Valley. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat,

* WHAT...Hot conditions with high temperatures up to 80 to 85 degrees and low temperatures down to 55 to 60 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Island County and San Juan County. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Hot conditions with high temperatures up to 90 to 95 degrees and low temperatures down to 60 to 65 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Lowlands of Pierce and Southern King Counties. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

* WHAT...Hot conditions with high temperatures up to 85 to 90 degrees and low temperatures down to 60 to 65 degrees expected This will pose a moderate risk of heat-related illness. * WHERE...Foothills and Valleys of the North Cascades, Eastside, Foothills and Valleys of Central King County, Foothills and Valleys of Pierce and Southern King Counties, Foothills and Valleys of Snohomish and Northern King Counties, and Foothills and Valleys of Thurston and Lewis Counties. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday.

* WHAT...Hot conditions with high temperatures up to 85 to 90 degrees and low temperatures down to 60 to 65 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...City of Seattle. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration. Drink plenty of fluids, stay in an air-conditioned room, stay out of

* WHAT...Hot conditions with high temperatures up to 85 to 90 degrees and low temperatures down to 60 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Eastern Kitsap County, Eastern Strait of Juan de Fuca, Lowlands of Western Skagit and Northwestern Snohomish Counties, Lowlands of Western Whatcom County, Northern Hood Canal, Port Townsend Area, Southern Hood Canal, Downtown Everett / Marysville Area, and Shoreline / Lynnwood / South Everett Area.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Anchorage, Lower Matanuska Valley, and Southern Susitna Valley. * WHEN...Until 9 AM AKDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...A band of locally dense fog has moved north from Cook Inlet over Knik Arm and across the Anchorage Bowl, Matanuska Valley, and southern Susitna Valley, including portions of the Parks and Glenn Highways. The fog will likely persist

* WHAT...Visibility as low as one quarter mile in dense fog. * WHERE...NW Kenai Peninsula and SW Kenai Peninsula, from Soldotna and Nikiski south to Homer. * WHEN...Until 9 AM AKDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...A band of locally dense fog has redeveloped along the western Kenai Peninsula coast. This band of fog has moved over the Sterling Highway from Soldotna and Kenai south to near Homer. The fog will likely persist through mid-morning Friday

* WHAT...Heat index values around 105 expected. * WHERE...DC and portions of central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose