ACUS11 KWNS 171808
SWOMCD
SPC MCD 171807=20
COZ000-172000-
Mesoscale Discussion 1124
NWS Storm Prediction Center Norman OK
0107 PM CDT Sat Jun 17 2023
Areas affected...southeast Colorado
Concerning...Severe potential...Watch likely=20
Valid 171807Z - 172000Z
Probability of Watch Issuance...95 percent
SUMMARY...Severe thunderstorms are expected to intensify over the
next few hours and move east/southeast off of the higher terrain and
across southeast Colorado. Damaging gusts and large to very large
hail hail will be the primary threats, although a tornado will also
be possible. A watch will be needed shortly.
DISCUSSION...A focused region of large-scale ascent moving east
across central CO will combine with moist southeasterly low-level
flow and contribute to an increase in thunderstorm coverage over the
higher terrain west of Interstate 25 over the next 1-2 hours. These
storms will move east/southeast across southeast CO where visible
imagery suggests that convective inhibition continues to weaken.
Continued daytime heating and lower 50s surface dewpoints will
combine with steep mid-level lapse rates to result in moderate
MLCAPE. Deep-layer shear will support a mix of supercell structures
and line segments capable of severe wind gusts and large hail. More
discrete supercells will be capable of very large hail (in excess of
2 inches) given ample CAPE in the -10C to -30 layer. Damaging wind
gusts will become more likely with time as linear structures evolve
with eastward extent.=20
Convective trends are being monitored and a watch will likely be
needed shortly.
..Bunting/Hart.. 06/17/2023
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!743dloDuIDognjiHKIyKW6m41i5H0-Te9oeHVQWHEwHUUgXcrer4qYZTmStq8ak9iOSyd3MWu= CrsAjRtlwgC3Lr2fPw$ for graphic product...
ATTN...WFO...GLD...PUB...BOU...
LAT...LON 37050354 37080401 37230474 37860480 38320477 38650452
38750403 38740353 38650275 38460208 37780204 37470210
37070227 37010281 37050354=20
=3D =3D =3D
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