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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 505
NWS Storm Prediction Center Norman OK
750 PM CDT Sat Oct 21 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Saturday night and Sunday morning from 750 PM
until 200 AM CDT.
* Primary threats include...
Isolated very large hail events to 2 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Scattered semi-discrete storms should continue to
intensify across western parts of North Texas this evening with more
extensive development occurring as the cold front continues to
overtake the dryline through late evening and overnight. Bouts of
severe hail will initially be possible, although locally damaging
wind gusts should become more prevalent by late evening and
overnight as storms trend more linear. Some tornado risk cannot be
entirely ruled out, particularly across far north Texas areas closer
to the Red River.
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 25 miles west southwest
of Abilene TX to 70 miles east southeast of Sherman TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU5).
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
OTHER WATCH INFORMATION...CONTINUE...WW 502...WW 503...WW 504...
AVIATION...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 550. Mean storm motion vector