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On average, there are 54 tornadoes in November and 28 tornadoes in December. These tornadoes are more likely in the southern states due to their proximity to the unstable airmass and warm waters of the Gulf of Mexico, with occasional incursions farther north into the Midwest, particularly in November.
On average, there are 66 confirmed tornadoes in the United States in September, 59 in October, 54 in November and 28 in December. [ 2 ] In September, tornadoes are most likely to occur in relation to the Atlantic hurricane season (as September is the peak month of hurricane season), and they can occur almost anywhere in the southern and eastern ...
More than 1 million people in the Bay Area were under the brief tornado warning, which was lifted by 6:15 a.m. ... The advisory was the first time the agency had ever issued a tornado warning for ...
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
An example of a tornado warning polygon issued by the National Weather Service. A tornado warning (SAME code: TOR) is a public warning that is issued by weather forecasting agencies to an area in the direct path of a tornado, or a severe thunderstorm capable of producing one, and advises individuals in that area to take cover.
The NWS Bay Area said the warning was over for San Francisco at 6:07 a.m. And let the tornado warning expire at 6:15 a.m. The warning led to a flurry of social media posts from residents who were ...
Severe storms caused damage across northern California on Saturday, and for the first time in recorded history, the National Weather Service (NWS) issued a tornado warning for the city of San ...
Tornado counts are considered preliminary until final publication in the database of the National Centers for Environmental Information. [1] Based on the 1991–2020 average, about 39 tornadoes are typically recorded across the United States during January, about 36 tornadoes are recorded in February, and about 80 tornadoes are recorded in ...