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WWUS20 KWNS 012055

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NEZ000-020400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 147

NWS Storm Prediction Center Norman OK

355 PM CDT Fri Jun 1 2018



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Nebraska



* Effective this Friday afternoon and evening from 355 PM until

  1100 PM CDT.



* Primary threats include...

  A few tornadoes possible

  Widespread large hail and scattered very large hail events to 3

    inches in diameter likely

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible



SUMMARY...An extremely unstable air mass continues to evolve

especially across central Nebraska, with increasingly intense storm

development expected initially across west-central Nebraska through

late afternoon. The environment favors supercells capable of very

large hail along with some tornado risk, particularly as

temperatures cool this evening and low-level shear increases.

Additional southward storm development can be expected by evening,

including the potential of an organized and

east/southeastward-accelerating cluster of storms capable of

widespread wind damage and hail.



The tornado watch area is approximately along and 80 statute miles

east and west of a line from 30 miles north northeast of Ainsworth

NE to 40 miles south of Hastings NE. 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 143...WW 144...WW

145...WW 146...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 3 inches. Extreme turbulence and surface wind

gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean

storm motion vector 25025.



...Guyer

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