2026-03-25T09:19:00-0400 / CBS新闻
周三，随着席卷西部的热浪自上周开始向美国中部扩张，17个州的气温可能突破历史新高。
哥伦比亚广播公司新闻气象学家尼基·诺兰表示，异常温暖的天气可能会在美国西部半部分地区一天内打破超过60项高温纪录。
亚利桑那州、阿肯色州、加利福尼亚州、科罗拉多州、爱达荷州、堪萨斯州、明尼苏达州、密苏里州、蒙大拿州、内布拉斯加州、内华达州、新墨西哥州、俄克拉荷马州、南达科他州、得克萨斯州、犹他州和怀俄明州均可能受到影响。预报显示，该地区至少8个主要城市的气温将升至或超过90华氏度。
自上周开始肆虐美国西部的热浪预计将缓慢向东移动，周五抵达东海岸。CBS新闻
根据美国国家海洋和大气管理局（NOAA）的国家数字预报数据库，凤凰城在经历了热浪来袭后多日出现三位数高温，周三有望达到100华氏度，这将比其日常纪录高出4度。该市目前该日期的最高气温纪录是2022年创下的。
地图显示2026年3月25日周三的预报最高气温。 CBS新闻
其他可能打破当日纪录的城市包括阿尔伯克基、奥斯汀、拉斯维加斯、俄克拉荷马城、图森和塔尔萨，每个城市的预报气温均将至少达到90华氏度。
图森若周三气温超过94华氏度，可能会出现1896年以来3月25日最炎热的天气，预报称气温可能达到这一水平。与此同时，塔尔萨可能出现自1970年以来最高的日气温。
丹佛和盐湖城则可能分别打破2012年和2022年创下的日高温纪录。
2026年3月25日周三热浪期间多个城市可能打破高温纪录。 CBS新闻
诺兰表示，到周日可能会有超过200项额外的日高温纪录被打破。热浪预计本周将缓慢向东移动，最终周五抵达东海岸。
地图显示2026年3月26日周四的预报高温。 CBS新闻
中部各州预计暂时出现比平均水平高出30至40华氏度的气温，诺兰警告称，北部平原地区持续的高温将在周四前增加该地区的火灾风险。
周三，从蒙大拿州到得克萨斯州的美国中部大片地区已发布多项火灾天气警报，预报员警告称，落基山脉部分地区至南部平原地区周四面临”严重火灾威胁”。诺兰表示，除高温外，这些地区本周阵风可能达到40至50英里/小时，某些地方的相对湿度可能降至4%。这种干燥、大风天气状况有利于野火蔓延。
地图显示2026年3月26日周四的火灾风险情况。 CBS新闻
尼基·诺兰对本报道有贡献。
Record-high temperatures possible in 17 states today as heat wave expands
2026-03-25T09:19:00-0400 / CBS News
Temperatures could reach record highs in 17 different states on Wednesday, as a heat wave that has been scorching the West since last week expands into the middle of the country.
The unusually warm weather has the potential to break more than 60 records across the western half of the U.S. over the course of the day, said CBS News meteorologist Nikki Nolan.
Arizona, Arkansas, California, Colorado, Idaho, Kansas, Minnesota, Missouri, Montana, Nebraska, Nevada, New Mexico, Oklahoma, South Dakota, Texas, Utah and Wyoming may all be affected, with forecasts showing temperatures rising up to, or above, 90 degrees in at least eight major cities throughout the region.
The heat wave that has been scorching the western U.S. since last week is forecast to slowly move eastward, reaching the East Coast on Friday. CBS News
Phoenix was expected to see the most extreme conditions, after weathering triple-digit temperatures on multiple days already since the heat wave began, according to NOAA’s National Digital Forecast Database. The Arizona capital could have a 100-degree day on Wednesday, which would exceed its daily record by four degrees. The city’s current record-high temperature for this date was set in 2022.
Map shows forecast high temperatures for Wednesday, March 25, 2026. CBS News
Other cities that may break their daily records include Albuquerque, Austin, Las Vegas, Oklahoma City, Tucson and Tulsa, each of which is forecast to see temperatures reach at least 90.
Tucson could experience its hottest March 25th since 1896 if temperatures exceed 94 degrees on Wednesday, as forecasts suggest they might. Meanwhile, Tulsa could see its hottest daily temperature since 1970.
Denver and Salt Lake City could potentially break daily records set in 2012 and 2022, respectively.
Multiple cities could break high temperature records amid the heat wave on Wednesday, March 25, 2026. CBS News
More than 200 additional daily temperature records could be broken through Sunday, said Nolan. The heat wave is forecast to slowly move eastward this week and eventually reach the East Coast on Friday.
Map shows forecast high temperatures for Thursday, March 26. 2026. CBS News
Central states are expected to see temperatures of 30 or 40 degrees above average for the time being, and Nolan warned that warmth settling into the Northern Plains will increase fire risks in that region through Thursday.
Numerous fire weather alerts were in effect Wednesday for a large strip of the central U.S., from Montana to Texas, and forecasters warned that there is a “critical threat” of fire weather through Thursday for sections of the Rocky Mountains down to the Southern Plains. In addition to the heat, wind gusts in those areas could reach up to 40 or 50 mph this week, while relative humidity is expected to drop to as low as 4% in certain places, said Nolan. Those types of dry, blustery conditions can be conducive to wildfires.
Map shows risk of fire conditions for Thursday, March 26, 2026. CBS News
Nikki Nolan contributed to this report.
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