000 WWUS86 KSEW 102148 RFWSEW URGENT - FIRE WEATHER MESSAGE National Weather Service Seattle WA 248 PM PDT Thu Sep 10 2020 WAZ651-655>659-661-110600- /O.CON.KSEW.FW.W.0003.000000T0000Z-200911T0600Z/ Central Coastal Lowlands- Black Hills and Southwest Interior Lowlands- Northeast Puget Sound Lowlands Generally Below 1500 Feet- Southeast Puget Sound Lowlands Generally Below 1500 Feet- West Slopes of the North Cascades Generally above 1500 Feet- West Slopes of the Central Cascades Generally above 1500 Feet- East Portion of the Olympic Mountains- 248 PM PDT Thu Sep 10 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR HOT, DRY, AND UNSTABLE CONDITIONS FOR FIRE WEATHER ZONES 651, 655, 656, 657, 658, 659, AND 661... * AFFECTED AREA...Fire Weather Zones 651, 655, 656, 657, 658, 659 and 661. * WINDS...West 5 mph or less. * RELATIVE HUMIDITY...As low as 22 percent. * HAINES...Mid-level Haines index values of 5 with isolated areas of 6 will be possible for the remainder of the afternoon. * IMPACTS...A dry and unstable air mass with warm temperatures can contribute to active fire behavior. In western Washington, significant growth on existing fires takes place under such conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either imminent or occurring now. Any fires that develop will likely spread quickly. Outdoor burning is not recommended. && $$ www.weather.gov/seattle