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In late 2023, American meteorologist and tornado expert Thomas P. Grazulis created the Outbreak Intensity Score (OIS) as a way to rank tornado outbreaks. [1] [2] For the score, only significant tornadoes are counted: F2/EF2 tornadoes receive 2 points each, F3/EF3 tornadoes receive 5 points each, F4/EF4 tornadoes receive 10 points each, and F5/EF5 tornadoes receive 15 points each. [1]
2.8 mi (4.5 km) 75 yd (69 m) A tornado inflicted roof damage to a home as soon as it formed. Moving east, an anchored mobile home was lifted and tipped over, sustaining major damage. Another home northeast of the mobile home had significant soffit and porch damage. An old TV tower was toppled on the property.
High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6. Starting April 30, the Storm Prediction Center noted that certain models, including the ECMWF, forecasted a multi-day period of high instability and supportive wind shear across the Southern and Central Plains, [10] and by May 1, a 15% risk was added across Nebraska, Kansas, Oklahoma, and northern Texas. [11]
See storm reports on an updated map. Tornadoes reports have come in from Illinois to Arkansas. See storm reports on an updated map. ...
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 ...
The high risk was issued at 1630Z driven by 60% significant severe wind probability as the maximum tornado probability was a hatched 15% area, just short of the high risk level. A total of 19 tornadoes were confirmed; one was rated EF3. 278 damaging wind gusts were reported, including 4 hurricane force gusts, though most occurred over Ohio and ...
Multiple tornadoes touched down in the southern United States over the weekend, killing at least four people from Texas to North Carolina, amid a wintertime severe weather outbreak. As of January ...
The video is old and does not show an Aug. 8 tornado in Tennessee.