Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1129 AM CDT Fri Oct 10 2025
Valid 101630Z - 111200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE LOWER
COLORADO RIVER VALLEY...
...SUMMARY...
A couple of severe storms may occur across the Lower Colorado River
Valley vicinity this afternoon into evening.
...Lower Colorado River Valley/southern Great Basin...
Height falls/flow aloft will gradually increase late today as the
West Coast upper trough amplifies and spreads southeastward toward
the Great Basin. Preceding it, rich low-level moisture is present
across the Lower Colorado River Valley early today, with this
moisture continuing to spread northward. Modest destabilization
should occur this afternoon particularly on the western periphery of
residual early day precipitation and cloud cover across Arizona into
southern Utah. At least weak instability, combined with increasing
mid-level flow with the approach of the upper trough/low, may
support a potentially severe storm or two including a couple of
transient supercells.
..Guyer/Jewell.. 10/10/2025
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