ACUS11 KWNS 242134
SWOMCD
SPC MCD 242133=20
WYZ000-UTZ000-MTZ000-IDZ000-NVZ000-242300-
Mesoscale Discussion 1699
NWS Storm Prediction Center Norman OK
0433 PM CDT Mon Jul 24 2023
Areas affected...portions of northeast Nevada into northwestern Utah...southeast Idaho...western Wyoming
Concerning...Severe potential...Watch unlikely=20
Valid 242133Z - 242300Z
Probability of Watch Issuance...20 percent
SUMMARY...A couple of severe gusts may accompany the stronger storms
this evening. A WW issuance is not expected.
DISCUSSION...Scattered thunderstorms are developing along the
northwestern periphery of a monsoonal moisture plume as an embedded
500 mb impulse grazes the Great Basin. These storms are developing
atop a heated, mixed boundary layer, characterized by surface
temperatures exceeding 90 F in several locales. The strong surface
heating has resulted in boundary-layer lapse rates reaching 10 C/km
in some locales. As such, efficient evaporative cooling with the
more intense storm cores may support a couple of severe gusts.
Nonetheless, the severe threat should remain isolated and a WW
issuance is not expected.
..Squitieri.. 07/24/2023
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_0w96j25DMNU8tZ-s6t3lwueMHSBYl6K79rQJDYwOhXfoqbbjojT9ppWic8gi6KNk9vMbPJV8= txZik2u8G4nmjNjKGQ$ for graphic product...
ATTN...WFO...RIW...TFX...SLC...PIH...BOI...LKN...
LAT...LON 39861606 42611407 44001218 44451148 44521117 43620941
43080924 42010920 40881014 40031094 39621187 39571332
39651460 39861606=20
=3D =3D =3D
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