北加州Mendocino县Cooley Fire过火面积升至731英亩 控制率仅5% 暂无疏散令

Mendocino县——据加州消防局(CAL FIRE)官方事件数据10月17日晚7时49分的更新,北加州Mendocino县Cloverdale以西的野火「Cooley Fire」过火面积已升至731.4英亩,控制率仅5%。这场火于10月16日下午5时05分在Elkhorn Road与Cooley Ranch Road一带燃起;官方至今未发布疏散令或疏散警告,也没有建筑损毁与人员伤亡的报告。
从官方更新看这场火第一天的进程:16日晚7时50分过火40英亩;17日上午11时10分一度报至1,000英亩,中午12时33分经更精确测绘修订为558英亩;下午1时14分,CAL FIRE通报控制率达到5%,并指出地形陡峭、进入通道有限,给扑救带来困难;至下午5时11分,过火面积再升至731英亩。这场火由CAL FIRE门多西诺分队(Mendocino Unit)管辖,目前未设事故管理团队。
起火原因方面,CAL FIRE列为调查中。据《新闻民主报》(Press Democrat)报道,这场火源于面积约19,000英亩的Cooley Ranch牧场内一次私人计划烧除(prescribed burn)失控越界——这次烧除并非CAL FIRE实施的项目;CAL FIRE正调查烧除失控的原因,包括当时的天气条件与现场可用的资源。该报还引述消防官员Turbeville的话说,烟雾贴近地面不散,影响了灭火飞机的作业。
烟尘是这场火在火场之外的主要影响。湾区空气质量管理局(BAAQMD)10月17日上午对Sonoma县北部发布空气质量提示:Healdsburg城外Bradford Mountain附近的监测点空气质量指数(AQI)达221,属「非常不健康」级别;Geyserville一带为160,属「不健康」级别。
Cooley Fire in Mendocino County Grows to 731 Acres at 5% Containment; No Evacuations Ordered
MENDOCINO COUNTY — The Cooley Fire, burning west of Cloverdale in southern Mendocino County, had grown to 731.4 acres with containment of just 5%, according to CAL FIRE's official incident data updated at 7:49 p.m. on Saturday, October 17. The fire was first reported at 5:05 p.m. on October 16 near Elkhorn Road and Cooley Ranch Road. Officials have issued no evacuation orders or warnings, and no structures have been damaged and no injuries reported.
The fire's first day, by the official updates: it stood at 40 acres by 7:50 p.m. on Friday; by 11:10 a.m. Saturday it was reported at 1,000 acres, a figure revised down to 558 acres at 12:33 p.m. after more accurate mapping; at 1:14 p.m. CAL FIRE reported 5% containment, noting that steep terrain and limited access have hampered firefighting efforts; by 5:11 p.m. the burned area had climbed again to 731 acres. The incident is under the jurisdiction of the CAL FIRE Mendocino Unit, and no incident management team has been assigned.
CAL FIRE lists the cause as under investigation. According to the Press Democrat, the fire began as a private prescribed burn on the roughly 19,000-acre Cooley Ranch that escaped its boundaries — the burn was not a CAL FIRE project — and CAL FIRE is investigating why the burn escaped, including the weather conditions and the resources on hand at the time. The Press Democrat also reported fire official Turbeville saying that low-hanging smoke was limiting the ability to use aircraft against the fire.
Smoke has been the fire's main impact beyond the burn area. The Bay Area Air Quality Management District issued an air quality advisory on Saturday morning for northern Sonoma County, where monitors recorded an AQI of 221 near Bradford Mountain outside Healdsburg — in the 'very unhealthy' range — and 160 in Geyserville, in the 'unhealthy' range.
来源:GSM·美国(原文链接)
图片来源:图:Cooley Fire 态势图(GSM 据 CAL FIRE/NIFC 官方测绘周界绘制,10月17日22时)。红色周界为官方17日中午测绘的火场范围(558英亩测绘值);据加州消防局(CAL FIRE)官方事件数据17日晚7时49分更新,过火面积已升至731.4英亩、控制率5%。底图 © OpenStreetMap contributors。Situation map of the Cooley Fire, drawn by GSM from the official CAL FIRE/NIFC mapped perimeter as of midday Oct. 17 (558 mapped acres); CAL FIRE incident data updated at 7:49 p.m. on Oct. 17 put the fire at 731.4 acres and 5% containment. Base map © OpenStreetMap contributors.
- 2026-10-17 22:42北加州Mendocino县Cooley Fire过火面积升至731英亩 控制率仅5% 暂无疏散令本篇
- 2026-10-18 16:24跟进:北加州Mendocino县「Cooley Fire」重测过火面积1,036英亩 控制率升至15%
- 2026-10-18 22:49跟进:北加州Mendocino县「Cooley Fire」过火面积升至1,156英亩 控制率15%
- 2026-10-19 08:30跟进:北加州Mendocino县「Cooley Fire」控制率升至23% 过火面积仍为1,156英亩
- 2026-10-19 14:50跟进:北加州Mendocino县「Cooley Fire」过火面积升至1,364英亩 控制率仍为23%
- 2026-10-19 18:10跟进:北加州Mendocino县「Cooley Fire」控制率升至45% 过火面积1,364英亩
- 2026-10-20 01:14跟进:Mendocino县「Cooley Fire」开始火场修护 内部未燃区未见明火、建筑无损
- 2026-10-20 15:47跟进:北加州Mendocino县「Cooley Fire」控制率升至57% 过火面积1,365英亩
- 2026-10-20 18:01跟进:北加州Mendocino县「Cooley Fire」控制率升至67% 过火面积1,365英亩 队伍开始回收火线装备
- 2026-10-23 00:21跟进:北加州Mendocino县「Cooley Fire」控制率升至80% 过火面积1,365英亩 指挥权移交本地分队

