ACUS11 KWNS 212046
SWOMCD
SPC MCD 212045=20
NEZ000-COZ000-WYZ000-212215-

Mesoscale Discussion 1191
NWS Storm Prediction Center Norman OK
0345 PM CDT Wed Jun 21 2023

Areas affected...portions of southeast Wyoming into northeast
Colorado and and the Nebraska Panhandle

Concerning...Tornado Watch 350...

Valid 212045Z - 212215Z

The severe weather threat for Tornado Watch 350 continues.

SUMMARY...The severe threat continues across Tornado Watch 350.
Large hail (some 2+ inches in diameter), severe gusts, and a few
tornadoes remain possible through the afternoon.

DISCUSSION...Visible satellite show convective initiation taking
place along the immediate lee of the Rockies, with more mature
storms already in progress along a remnant outflow across the CO/NE
border area. These storms already have a history of producing up to
2 inch diameter hail, severe gusts, and a landspout tornado. Given
anomalous low-level moisture and associated ample instability,
storms should continue to increase in number and intensity through
the afternoon. While low-level shear is relatively weak overall
across the warm sector, locally stronger low-level shear may exist
along the remnant outflow, and along a differential heating zone
across extreme southeast Wyoming. Storms in these areas may have the
best chance at producing a tornado.

..Squitieri.. 06/21/2023

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_9pNkrIc8On_0gxSL4lsTOj9afTyy1I6UZxHL1TJmFlnW_v-ZXUgPyiQ07OLFsUBFVIIaZsUA= SoKxiFSAiv6pHhGpgs$ for graphic product...

ATTN...WFO...LBF...GLD...BOU...CYS...RIW...

LAT...LON 43360609 42200338 41180258 40170262 39830277 39720336
39970421 40400498 40780566 41100607 43360609=20


=3D =3D =3D
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