跟进：Sierra Nevada冬季风暴观察升级为警告，周五起6,000英尺以上降雪最高约2英尺

美国国家气象局（National Weather Service，NWS）Sacramento 办公室11月12日凌晨发布冬季风暴警告：Sierra Nevada 北部6,000英尺以上地区自周五上午10时至周六上午10时将迎来强降雪，总积雪最高约1英尺，最高海拔处可达约2英尺。本站此前报道的冬季风暴观察就此升级为警告。

警告覆盖范围包括80号州际公路、50号公路、4号与108号州道沿线山区、南 Cascades 以及 Lassen Volcanic National Park 一带，Donner Pass 与 Carson Pass 等主要山口在列。气象局的预报讨论指出，周五7,000英尺以上可能出现暴风雪条件，山口出行危险、甚至可能无法通行。

Sierra 南部方面，NWS Hanford 办公室对 Yosemite、Sequoia 与 Kings Canyon 一带高海拔地区维持冬季风暴观察至下周一晚，6,000英尺以上预计降雪6至12英寸。气象局预计，本轮降雪将在周六下午至周日短暂减弱，周日晚至周一再有一轮风雪抵达。（来源：美国国家气象局）

Follow-Up: Winter Storm Warning Issued for the Sierra Nevada, Up to 2 Feet of Snow Above 6,000 Feet Starting Friday

The National Weather Service (NWS) office in Sacramento issued a winter storm warning early on November 12: the northern Sierra Nevada above 6,000 feet will see heavy snow from 10 a.m. Friday to 10 a.m. Saturday, with total accumulations up to about one foot and up to about two feet at the highest peaks. The winter storm watch previously reported by GSM has been upgraded to a warning.

The warning covers the mountains along Interstate 80, Highway 50, State Route 4 and State Route 108, the southern Cascades and the Lassen Volcanic National Park area, including major passes such as Donner Pass and Carson Pass. The weather service's forecast discussion said blizzard conditions are possible above 7,000 feet on Friday, making mountain travel dangerous and potentially impossible.

Farther south, the NWS Hanford office kept a winter storm watch in effect through Monday night for the high country around Yosemite, Sequoia and Kings Canyon, where 6 to 12 inches of snow is expected above 6,000 feet. Forecasters expect a lull in the snow Saturday afternoon into Sunday, followed by another round Sunday night through Monday. (Source: National Weather Service)

来源：美国国家气象局

发布：GSM·美国（发布链接）

图片来源：图：Donner Pass 一带雪景。Clay Gilliland 摄，Wikimedia Commons，CC BY-SA 2.0。 / Image: Snow near Donner Pass. Photo by Clay Gilliland, Wikimedia Commons, CC BY-SA 2.0.

GSM Global · 本篇英文版 English edition of this story

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