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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 342
NWS Storm Prediction Center Norman OK
1025 PM CDT Fri Jun 16 2017
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
* Effective this Friday night and Saturday morning from 1025 PM
until 500 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...A weak mid-level disturbance or two combined with
residually steep lapse rates and moderate deep-layer shear will
continue to pose at least an episodic severe risk mainly in the form
of large hail and locally damaging winds as storms spread eastward
late this evening into the overnight.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 30 miles northwest of
Milwaukee WI to 45 miles west southwest of Moline IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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 341...
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 600. Mean storm motion vector