内华达山脉迎万圣节周末降雪：88号公路防滑链管制、两处山口关闭
万圣节周末的冬季天气11月1日继续影响加利福尼亚州内华达山脉，带来山区降雪、公路管制与沿海降雨。加州交通局消息说，截至11月1日下午，88号公路从哈姆车站以东至皮克茨交界以西5英里路段仍实施防滑链管制，原因是积雪与结冰。
国家气象局萨克拉门托办公室此前对海拔7000英尺以上地区发布冬季天气预警，自10月31日上午8时生效至11月1日上午7时；11月1日上午该机构表示，降水正在减弱，午后将逐渐转干，但上午仍可能有零星降雪，雪线可低至5500英尺。加州交通局快速地图显示，89号公路莫尼特山口与108号公路索诺拉山口11月1日下午均因积雪全线关闭。预报说，雪线先维持在7000至8000英尺，夜间降至6000至7000英尺。
南加州方面，一股「菠萝快车」大气河系统给沿海县带来降雨与大浪，圣迭戈国家气象局曾对橙县沿海地区发布洪水预警。另一个太平洋系统预计11月3日前抵达北加州和中加州，带来新一轮山区降雪与谷地阵雨。
（来源：《纽约邮报》）
Halloween Weekend Snow Hits the Sierra Nevada: Chain Controls on Highway 88, Two Passes Closed
Winter weather over Halloween weekend continued to affect California's Sierra Nevada on November 1, bringing mountain snow, road controls and coastal rain. Caltrans said that as of the afternoon of November 1, chain controls remained in effect on Highway 88 from east of Ham's Station to five miles west of Pickett's Junction because of snow and ice.
The National Weather Service office in Sacramento had issued a winter weather advisory for elevations above 7,000 feet from 8 a.m. October 31 to 7 a.m. November 1; on the morning of November 1 it said precipitation was weakening and conditions would dry out in the afternoon, though scattered snow showers were still possible in the morning with snow levels as low as 5,500 feet. Caltrans' QuickMap showed Monitor Pass on Highway 89 and Sonora Pass on Highway 108 both fully closed for snow on the afternoon of November 1. Snow levels were forecast to hold at 7,000 to 8,000 feet before dropping to 6,000 to 7,000 feet overnight.
In Southern California, a "Pineapple Express" atmospheric river brought rain and high surf to coastal counties, and the National Weather Service in San Diego issued a flood advisory for coastal Orange County. Another Pacific system is expected to reach Northern and Central California by November 3 with a new round of mountain snow and valley rain.
(Source: New York Post)
来源：《纽约邮报》
发布：GSM·美国（发布链接）
图片来源：图：内华达山脉Mammoth Lakes一带雪景（资料图）。mjhbower 摄，CC BY-SA 2.0，经 Wikimedia Commons。 / Photo: snowy Sierra Nevada scenery near Mammoth Lakes (file photo). By mjhbower, CC BY-SA 2.0, via Wikimedia Commons.
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