威斯康星热穹罩顶：密尔沃基10月12日飙至87华氏度破单日纪录
10月12日，密尔沃基在「热穹」笼罩下打破单日高温纪录。国家气象局向《密尔沃基哨兵报》证实，当天下午约3点，米切尔国际机场气温达到87华氏度（约30.6摄氏度），超过了1995年创下的83华氏度纪录。
国家气象局气象学家马克·格林表示，覆盖威斯康星东南部的热穹、南风和持续晴朗共同造成了异常高温，「破纪录是板上钉钉的事」。10月通常是密尔沃基一年中最舒适的月份之一：正常年份10月平均气温为57华氏度，但今年10月至今平均已达61华氏度；首府麦迪逊的情况类似，正常平均54华氏度、今年已达59华氏度。
降水方面，密尔沃基10月的正常雨量为1.05英寸，而今年10月1日一天就全部下完；气象局预计10月15日还将有降雨。
信息来源：Milwaukee Journal Sentinel https://www.jsonline.com/story/weather/2026/10/12/heat-dome-drives-milwaukee-to-record-breaking-85-degrees-oct-12/92218037007/
Heat Dome Pushes Milwaukee to a Record 87 Degrees on Oct. 12
MILWAUKEE — Under a “heat dome,” Milwaukee broke its daily high temperature record on Oct. 12. The National Weather Service confirmed to the Milwaukee Journal Sentinel that the temperature at Mitchell International Airport reached 87°F (about 30.6°C) at around 3 p.m., surpassing the previous record of 83°F set in 1995.
NWS meteorologist Mark Gehring said a heat dome over southeastern Wisconsin, southerly winds and persistent sunshine combined to produce the abnormal heat, and that breaking the record was “pretty much a slam dunk.” October is normally one of Milwaukee's most comfortable months: the normal October average is 57°F, but this October has averaged 61°F so far; Madison is similar, averaging 59°F against a normal 54°F.
On precipitation, Milwaukee's normal October rainfall is 1.05 inches — all of which fell on Oct. 1 alone this year — and the Weather Service expects more rain on Oct. 15.
Source: Milwaukee Journal Sentinel
图片来源：密尔沃基天际线，CC BY-SA 4.0，作者 Michael Barera（Wikimedia Commons）
