SPC 1730Z Day 2 Outlook

Day 2 Outlook Image

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1215 PM CDT Mon Oct 26 2020

Valid 271200Z - 281200Z


Severe thunderstorms are not expected across the contiguous United
States on Tuesday.

...Synopsis and Discussion...
A closed upper low over AZ/NM and adjacent northern Mexico is
forecast to move slowly eastward towards the southern High Plains on
Tuesday. Large-scale ascent preceding this feature will overspread
parts of the southern Plains through the period. Even though much of
this region will be to the north of a cold front, weak elevated
instability may still develop as mid-level temperatures gradually
decrease with the approach of the upper trough. Isolated
thunderstorms may occur in this regime. Farther south, substantial
low-level moisture will remain confined to parts of coastal TX and
the Southeast. Occasional storms may also occur across these regions
though the day, but generally weak low/mid-winds should limit both
deep-layer shear and organized severe thunderstorm potential. The
enhanced low-level wind field associated with Tropical Cyclone Zeta,
forecast by the National Hurricane Center to move northwestward to
northward across the central Gulf of Mexico on Tuesday, is not
expected to overspread portions of the central Gulf Coast until
after the end of the Day 2 period.

..Gleason.. 10/26/2020

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