Severe Local Storm Watch and Watch Cancellation Msg
Issued by NWS

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WWUS20 KWNS 192035
SPC WW 192035

Tornado Watch Number 487
NWS Storm Prediction Center Norman OK
335 PM CDT Tue Sep 19 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
  Western Minnesota
  Eastern North Dakota
  Eastern South Dakota

* Effective this Tuesday afternoon from 335 PM until Midnight

* Primary threats include...
  A few tornadoes possible
  Scattered large hail and isolated very large hail events to 2.5
    inches in diameter possible
  Scattered damaging wind gusts to 70 mph possible

SUMMARY...Storms are expected to increase in coverage and intensity
along an east-advancing cold front with supercells and bowing line
segments capable of damaging wind, large hail and a few tornadoes
this afternoon and evening.

The tornado watch area is approximately along and 95 statute miles
east and west of a line from 45 miles west northwest of Hallock MN
to 35 miles southwest of Mitchell SD. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS


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.


AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24035.

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