SPC Tornado Watch 577



WW 577 TORNADO CO KS NE 131745Z – 140100Z

WW 0577 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 577
NWS Storm Prediction Center Norman OK
1145 AM MDT Tue Aug 13 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Eastern Colorado
  Northwest Kansas
  Southwest Nebraska

* Effective this Tuesday morning and evening from 1145 AM until
  700 PM MDT.

* Primary threats include...
  A couple tornadoes possible
  Widespread large hail and scattered very large hail events to 4
    inches in diameter likely
  Scattered damaging winds and isolated significant gusts to 80
    mph likely

SUMMARY...Multiple discrete supercells will pose a risk for
potentially giant hail and a couple tornadoes through this
afternoon. This activity should eventually grow upscale into a
south-southeast moving cluster with an increasing risk for severe
wind gusts towards early evening.

The tornado watch area is approximately along and 70 statute miles
east and west of a line from 50 miles northeast of Sidney NE to 50
miles south southeast of Goodland KS. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU7).

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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 576...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 4 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 34035.

...Grams

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