Mesoscale Discussion 0572
NWS Storm Prediction Center Norman OK
0249 PM CDT Tue May 07 2019
Areas affected...Parts of northeastern New Mexico and southeastern
Colorado
Concerning...Severe potential...Watch possible
Valid 071949Z - 072145Z
Probability of Watch Issuance...40 percent
SUMMARY...Scattered strong to severe storms, including isolated
supercells, appear likely to develop off the Sangre de Cristo
Mountains, across and south of the Raton Mesa area through 3-5 PM
MDT. It is not yet certain that a watch will be required, but
trends are being monitored for this possibility.
DISCUSSION...Downstream of the closed mid-level low now turning
east-northeastward into the southern Rockies, orographic and
large-scale forcing for ascent are contributing to the initiation of
thunderstorms near the Sangre de Cristo Mountains. At the same
time, insolation within post-frontal easterly low-level to the lee
of the mountains is contributing to steepening low-level lapse rates
and weak to modest boundary-layer destabilization. As inhibition
for boundary layer parcels continues to erode, storms will propagate
east of the mountain through late afternoon, aided by 30+ kt
southwesterly ambient mean flow. With pronounced veering of lower
through mid-tropospheric wind fields contributing to strong deep
layer shear, a few supercells are possible, accompanied primarily by
the risk for severe hail and localized strong surface gusts.
..Kerr/Guyer.. 05/07/2019
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PUB...ABQ...
LAT...LON 37250434 37820433 37170363 36900319 35200320 35140433
35930460 36900450 37250434
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