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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 159
NWS Storm Prediction Center Norman OK
555 PM CDT Tue Apr 25 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and eastern Oklahoma
* Effective this Tuesday afternoon and Wednesday morning from 555
PM until 200 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 3 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Strong to severe thunderstorms will continue to develop
and intensify through the early/mid-evening hours, initially from
central and northeast Oklahoma into far southeast Kansas. Large hail
and damaging winds should be the most common hazard, although some
tornado risk may exist as low-level moisture and low-shear both
increase this evening.
The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 5 miles northwest of
Oklahoma City OK to 50 miles north northeast of Joplin MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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
AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector