SPC Tornado Watch 648

WW 648 TORNADO IA MN WI 121915Z – 130300Z

WW 0648 Image

Tornado Watch Number 648
NWS Storm Prediction Center Norman OK
215 PM CDT Thu Sep 12 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Northeast Iowa
  Southeast Minnesota
  Southwest Wisconsin

* Effective this Thursday afternoon and evening from 215 PM until
  1000 PM CDT.

* Primary threats include...
  A couple tornadoes possible
  Scattered damaging wind gusts to 70 mph possible
  Scattered large hail events to 1.5 inches in diameter possible

SUMMARY...Thunderstorms are expected to intensify this afternoon
along a warm front across the watch area.  A few supercells are
possible, capable of hail, damaging winds, and a tornado or two.

The tornado watch area is approximately along and 95 statute miles
east and west of a line from 55 miles north northwest of La Crosse
WI to 35 miles east of Waterloo IA. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU8).


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 1.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 26030.


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