265
WWUS20 KWNS 172052
SEL5
SPC WW 172052
COZ000-KSZ000-NEZ000-WYZ000-180300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 675
NWS Storm Prediction Center Norman OK
255 PM MDT Tue Sep 17 2024

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
  Northeast and East-Central Colorado
  Northwest Kansas
  Western Nebraska
  Eastern Wyoming

* Effective this Tuesday afternoon and evening from 255 PM until
  900 PM MDT.

* Primary threats include...
  Widespread damaging winds likely with isolated significant gusts
    to 80 mph possible
  Isolated large hail events to 1 inch in diameter possible

SUMMARY...High-based convection should gradually increase in
coverage and intensity as it spreads northeastward across the
central High Plains this afternoon and evening. Numerous strong to
severe wind gusts should be the main threat with this activity, with
the highest gusts potentially reaching up to 70-80 mph.

The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 35 miles south southwest
of Burlington CO to 60 miles north northeast of Torrington WY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU5).

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 674...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 70 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
24040.

...Gleason