The Enhanced Fujita Scale is used to assign tornadoes a rating based on estimated wind speeds and damage.
The EF Scale became operational on Feb. 1, 2007. It was revised from the original Fujita Scale, developed in 1971 by Tetsuya Fujita, to better reflect wind speed with damage observed in tornado surveys.
Deadly Severe Weather Facts & Safety Tips:
The cause of the mudslide is believed to be due to the drought conditions which have left Mt. Shasta’s glaciers exposed to the sun’s heat.
A pattern change will usher in cooler air and rain to the Northwest this week.
Autumn officially starts at 10:29 p.m. EDT on Monday, but it will not feel like autumn in some parts of the U.S.
Fung-wong will spread heavy rainfall across Eastern China, South Korea and Japan this week.
The peak of hurricane season, among other things, arrives in the fall.
A brief warmup is in store for residents of the Northeast this weekend before more fall-like conditions return.
Columbus, GA (1990)
Record 22 days of 90 degrees or higher in September at Columbus. Longest stretch on record.
Cleveland, OH (1998)
9.54" of rain so far this month breaks old September record of 9.30" set in September 1878.
Oklahoma City, OK (2000)
0.03" of rain ended a 54 day dry string.