The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
extreme western Maryland
central and southern Ohio
northern West Virginia
* effective this Tuesday afternoon and evening from 1255 PM until
800 PM EDT.
* Primary threats include...
scattered large hail and isolated very large hail events to 2
inches in diameter possible
scattered damaging wind gusts to 70 mph possible
Summary... thunderstorms are intensifying ahead of an upper system
that will spread across the watch area this afternoon. Several
strong to severe storms are expected... posing a risk of locally
damaging winds and hail.
The Severe Thunderstorm Watch area is approximately along and 70
statute miles north and south of a line from 40 miles west of
Cincinnati Ohio to 30 miles north northeast of Latrobe
Pennsylvania. 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 tornadoes.
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 500. Mean storm
motion vector 26030.
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Severe Thunderstorm Watch
Statement as of 12:55 PM EDT on June 30, 2015