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WWUS20 KWNS 162210
SEL4
SPC WW 162210
COZ000-IAZ000-KSZ000-NEZ000-170500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 424
NWS Storm Prediction Center Norman OK
510 PM CDT Mon Jun 16 2025

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Far Northeast Colorado
  Western Iowa
  Far Northwest Kansas
  Nebraska

* Effective this Monday afternoon from 510 PM until Midnight CDT.

* Primary threats include...
  Scattered damaging winds and isolated significant gusts to 80
    mph likely
  Scattered large hail and isolated very large hail events to 3
    inches in diameter possible
  A tornado or two possible

SUMMARY...Thunderstorm intensity and coverage is expected to
increase across the region this afternoon/evening. Large to very
large hail up to 3" in diameter is possible with the initial more
cellular development. Development into one or more convective lines
is possible as well, with damaging gusts up to 75-80 mph as the
primary risk once this linear transition occurs.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 40 miles north
northwest of Imperial NE to 25 miles east southeast of Denison IA.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU4).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 423...

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27030.

...Mosier