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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 221
NWS Storm Prediction Center Norman OK
325 PM CDT Sun May 15 2022
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Sunday afternoon and evening from 325 PM until
1000 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging winds likely with isolated significant gusts
to 80 mph possible
A tornado or two possible
SUMMARY...Multiple supercells should develop along the intersection
of remnant convective outflow and surface cyclone. This activity
will tend to propagate south and likely grow upscale into an MCS as
it approaches the Red River later this evening.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles north of
Muskogee OK to 15 miles east southeast of Durant OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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 217...WW 218...WW
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector