Olympic National Forest
Fire Weather Watch issued July 21 at 1:55PM PDT until July 23 at 2:00PM PDT by NWS Seattle WA
The National Weather Service in Seattle has issued a Fire Weather Watch for lightning and gusty outflow winds, which is in effect from Wednesday afternoon through Thursday afternoon. * AFFECTED AREA...Fire Weather Zone 655 Black Hills and Southwest Interior Lowlands and Fire Weather Zone 659 West Slopes of the Central Cascades Generally above 1500 Feet. * LIGHTNING...Isolated to scattered thunderstorm coverage is possible across the southern Cascade Mountains and portions of southwest Washington. Thunderstorms will develop late Wednesday night and move from south to north across the area. * OUTFLOW WINDS...Any storms that develop will be capable of gusty and erratic outflow winds between 25 and 30 miles per hour. Outflow winds can occur ahead of and behind storms and cause erratic wind directions. * IMPACTS...Scattered lightning in dry fuels can cause multiple fire starts. Thunderstorms can also bring sudden sharp wind shifts on existing fires, causing rapid changes in a fire's rate of spread and direction of spread. Thunderstorm outflow winds can be a threat for several hours following the start of a new lightning-caused fire. If a fire were to begin, air quality may diminish in the surrounding area.
Heat Advisory issued July 21 at 3:19PM PDT until July 22 at 11:00PM PDT by NWS Seattle WA
* WHAT...Hot conditions with high temperatures in the 90s to near 100 degrees and low temperatures in the mid 60s. This will pose a major risk of heat-related illness. * WHERE...Foothills of the Western and Southern Olympic Peninsula, Middle Chehalis River Valley, Southern Hood Canal, Foothills and Valleys of Thurston and Lewis Counties, Lowlands of Lewis and Southern Thurston Counties, and Olympia and Southern Puget Sound. * WHEN...Until 11 PM PDT Wednesday. * IMPACTS...Extreme heat will significantly increase the risk of heat-related illnesses for much of the population, especially those who are heat sensitive and those without effective cooling or adequate hydration.
Heat Advisory issued July 21 at 3:19PM PDT until July 22 at 11:00PM PDT by NWS Seattle WA
* WHAT...Hot conditions with high temperatures in the upper 80s to lower 90s and low temperatures around 60 degrees. This will pose a moderate risk of heat-related illness. * WHERE...Eastern Strait of Juan de Fuca, Foothills and Valleys of the North Cascades, Lake Crescent Area Including US 101, Lowlands of Western Skagit and Northwestern Snohomish Counties, Lowlands of Western Whatcom County, Northern Hood Canal, and Port Townsend Area. * WHEN...Until 11 PM PDT Wednesday. * 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. * ADDITIONAL DETAILS...Areas closest to the water will experience cooler daytime high temperatures.
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