Day 1 Severe Weather Outlook

Valid 051200Z – 061200Z

…NO THUNDERSTORM AREAS FORECAST…

…SUMMARY…
Thunderstorms are not expected across the contiguous United States
on Sunday.

…Discussion…

Short-wave trough off the northern CA coast will move inland early
in the period as an 80kt 500mb speed max translates across northern
CA/NV into CO by 06/00z. North of this jet, much cooler profiles
will result in steep lapse rates which should contribute to some
buoyancy from the northern Great Basin into southern WY. While weak
convection may be noted along this corridor, forecast soundings
suggest updrafts will be too shallow/weak for any appreciable threat
of lightning, especially given the cold profiles.

..Darrow.. 01/05/2020

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