Severe Local Storm Watch and Watch Cancellation Msg
Issued by NWS

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WWUS20 KWNS 231818
SEL6
SPC WW 231818
KYZ000-MDZ000-OHZ000-PAZ000-WVZ000-240200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 366
NWS Storm Prediction Center Norman OK
220 PM EDT Fri Jun 23 2017

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Northeast Kentucky
  Western Maryland
  Southern Ohio
  Southern Pennsylvania
  Northern West Virginia

* Effective this Friday afternoon and evening from 220 PM until
  1000 PM EDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Amid cloud breaks and relatively rich low-level moisture,
the air mass across the region will continue to gradually
destabilize with an expected increase and intensification of
thunderstorms this afternoon. Strong nearly unidirectional
deep-layer winds could support fast-moving line segments and bows
along with the possibility of a few splitting supercells. Damaging
winds should be the most common hazard.

The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 25 miles south of
Cincinnati OH to 30 miles northeast of Harrisburg PA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 365...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25035.

...Guyer


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