SPC Tornado Watch 490

WW 490 TORNADO CO KS NE 012025Z - 020400Z

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 490
NWS Storm Prediction Center Norman OK
325 PM CDT Sun Oct 1 2017

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Far eastern Colorado
  Western Kansas
  Southwest and west-central Nebraska

* Effective this Sunday afternoon and evening from 325 PM until
  1100 PM CDT.

* Primary threats include...
  A couple tornadoes possible
  Scattered large hail and isolated very large hail events to 3
    inches in diameter possible
  Isolated damaging wind gusts to 70 mph possible

SUMMARY...Storms are likely to increase and intensify across the
Colorado, Kansas, and Nebraska border region through late afternoon,
with additional development also expected a bit farther south across
west-central/northwest Kansas. Supercell thunderstorms capable of
large hail are expected through early evening along with the
possibility of a couple of tornadoes. Damaging winds may also become
an increasing concern this evening as storms tend to cluster as they
spread northeastward into Nebraska and far northern Kansas.

The tornado watch area is approximately along and 70 statute miles
east and west of a line from 40 miles northwest of North Platte NE
to 80 miles southwest of Hill City KS. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean
storm motion vector 24025.

...Guyer

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