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Severe weather means there is a potential for hail, damaging winds, more than an inch of rain and a shot at an isolated tornado. The NWS issued a Tornado Watch until 7 p.m. for 21 counties.
Long-track tornadoes of greater than EF2 intensity will be likely in some areas. Wind gusts greater than 70 mph will also be possible." (8 p.m. ET) Roof Ripped Off Texas Elementary School
Over 30 tornadoes have been confirmed from December 26-29 across the South. That includes four strong tornadoes, of at least EF-2 strength. Two were rated EF-3 in southeastern Texas.
Often, news of a tornado would reach a local weather office after the storm. However, with the advent of weather radar, areas near a local office could get advance warning of severe weather. The first public tornado warnings were issued in 1950 and the first tornado watches and convective outlooks came about in 1952.
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]
Tornado intensity is the measure of wind speeds and potential risk produced by a tornado. Intensity can be measured by in situ or remote sensing measurements, but since these are impractical for wide-scale use, intensity is usually inferred by proxies , such as damage.
Winter Storm Live Tracker: Snowfall Maps, Current Alerts, Power Outage Forecasts Although atmospheric available energy is meager at best, there is enough wind shear in the atmosphere to allow some ...
Areas of the South recently ravaged by a deadly tornado outbreak are again facing the threat of severe weather this weekend as part of a major winter storm threatening impacts to over 60 million ...