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URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 188
NWS Storm Prediction Center Norman OK
230 PM CDT Tue May 18 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
* Effective this Tuesday afternoon and evening from 230 PM until
900 PM CDT.
* Primary threats include...
A couple tornadoes possible
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Increasing severe thunderstorm development is expected
initially across south-central/east-central Texas through mid/late
afternoon, particularly in vicinity of an outflow boundary that has
generally stalled in a southwest/northeast fashion across the
region. A moist environment, modest strength low-level winds in
conjunction with the influence of the outflow boundary could support
a tornado risk aside from more prevalent damaging winds and isolated
The tornado watch area is approximately along and 80 statute miles
east and west of a line from 65 miles northwest of Lufkin TX to 55
miles south southeast of San Antonio TX. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24020.