This page documents all tornadoes confirmed by various weather forecast offices of the National Weather Service in the United States during November to December 2018. Based on the 1991–2010 averaging period, 58 tornadoes occur across the United States throughout November while 24 more occur in December.
November saw multiple large outbreaks, the first of which was an extension of an outbreak that began at the end of October while the last one extended into December. December also featured an unusually strong tornado in the state of Washington. November and December finished significantly above average with 88 and 66 tornadoes respectively. However, both months did not have any violent tornadoes, leaving the United States without any tornadoes of such intensity for all of 2018.
References.
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