Severe Storm Outlook Narrative (AC)
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669
ACUS11 KWNS 290048
SWOMCD
SPC MCD 290047
TXZ000-290215-
Mesoscale Discussion 1060
NWS Storm Prediction Center Norman OK
0747 PM CDT Tue May 28 2024
Areas affected...Portions of the Rio Grande Valley
Concerning...Severe potential...Watch likely
Valid 290047Z - 290215Z
Probability of Watch Issuance...80 percent
SUMMARY...Severe wind gusts near 60-70 mph and marginally severe
hail will accompany a developing MCS through the late evening hours.
DISCUSSION...Several robust updrafts, and a couple of supercells,
will continue moving eastward off the higher terrain of Chihuahua
Mexico. Cell mergers appear likely, and the downstream environment
remains favorable for maintenance considering easterly surface winds
around 15 to 20 kt. Convergence zone balance is anticipated between
this surface flow and westerly 0-3 km shear vectors. In addition, a
very unstable and undisturbed air mass remains in place across south
Texas.
..Barnes/Smith.. 05/29/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CRP...EWX...BRO...
LAT...LON 28910078 29130042 29099943 28639880 26759832 26259860
26429908 27049942 27549949 27809984 28110007 28910078