火灾天气警报 发布时间：9月18日 上午5:34 山地夏令时 有效期至：9月18日 晚上9:00 山地夏令时 发布机构：博伊西国家气象局（爱达荷州）
…零散雷暴伴有大风和少量降雨… 加州东北部的一个强低压系统将在今天下午和傍晚带来零散雷暴，并伴有阵风……
...SCATTERED THUNDERSTORMS WITH GUSTY WINDS AND LITTLE RAINFALL...
A strong low pressure system in northeastern California will bring scattered thunderstorms this afternoon and evening with outflow wind gusts up to 50 mph and little rainfall. As the low moves into southeastern Oregon late tonight and southwestern Idaho on Friday, scattered thunderstorms will develop again, especially on the Idaho side.
* AFFECTED AREA...In Idaho, Fire Weather Zones 403 Northern Boise National Forest, 421 Southern Boise/Western Sawtooth NF, including the Camas Prairie, 423 Owyhee Mountains, 424 Western Twin Falls BLM and 426 Southern Highlands.
* TIMING...Through this evening.
* WINDS...Northwest 10 to 15 mph with gusts up to 25 mph.
* RELATIVE HUMIDITY...40 to 54 percent.
* TEMPERATURES...60 to 70 degrees.
* THUNDERSTORMS...Scattered coverage with abundant lightning.
* OUTFLOW WINDS...Gusty erratic winds up to 40 mph.
* IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
Affected area: Northern Boise National Forest; Southern Boise/Western Sawtooth NF, including the Camas Prairie; Owyhee Mountains; Western Twin Falls BLM; Southern Highlands