Tornado Watch for Northern Lower Michigan

The NWS Storm Prediction Center has issued a
Tornado Watch for portions of

northern lower Michigan
Lake Huron
Lake Michigan

Effective this Sunday night and Monday morning from 620 PM until
200 am EDT.

Tornadoes… hail to 2 inches in diameter… thunderstorm wind
gusts to 70 mph… and dangerous lightning are possible in these

The Tornado Watch area is approximately along and 75 statute
miles east and west of a line from 35 miles east northeast of
Pellston Michigan to 25 miles southwest of Houghton Lake
Michigan. For a complete depiction of the watch see the
associated watch outline update (wous64 kwns wou1).

Remember… a Tornado Watch means conditions are favorable for
tornadoes and 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.

Other watch information… continue… ww 120…

Discussion… cluster of elevated sustained tstms… now over
cntrl/nrn lk mi… expected to continue ENE across nrn lwr mi through
remainder of eve… with additional development possible as
associated area of ascent interacts with slowly-moving warm front
over region. Given strong deep wind field… and likelihood for
further strengthening of winds this eve… potential will exist for
supercells. In addition… with boundary layer S of warm front in
lwr mi having warmed through the day… potential also will exist for
storms to become surface based. Thus… a threat may develop for
isold tornadoes in addition to hail and dmgg wind.

Aviation… tornadoes and 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 25045.


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