NWS: Unseasonably warm weather to continue in Whatcom County, red flag ... National Weather Service Seattle office (October 14, 2022) Forecasters issued a red flag warning for the western slopes of the north Cascades above 1500 feet today, October 14th, due to "A combination of moderate breezes, low relative humidity, and warm temperatures can contribute to rapid rates of spread and down-wind spotting on existing ...