Day 1 Severe Weather Outlook

Valid 012000Z – 021200Z


Isolated thunderstorms will be possible from the Pacific Northwest
into the northern Great Basin today, with locally strong winds in
the northern Utah/northeastern Nevada area. A few thunderstorms
might also occur from south Texas to western Louisiana tonight.

…20Z Update…
Forecast reasoning outlined in the previous discussion remains
valid. Sporadic lightning remains possible from the Pacific
Northwest into the northern Great Basin. Some convective enhancement
of the already strong gradient winds is possible.

Isolated thunderstorms still remain possible from the TX Coast into
the Mid-South tonight.

..Mosier.. 01/01/2020

.PREV DISCUSSION… /ISSUED 1030 AM CST Wed Jan 01 2020/

Most of the nation will see relatively dry/stable conditions. One
area with some deep-convective potential extends from the Pacific
Northwest coast into the northern Great Basin. Fast onshore flow and
cold temperatures aloft will promote isolated lightning strikes
across a large part of the northwest US. Several 12z CAM solutions
suggest a more organized line of showers and perhaps thunderstorms
will affect parts of southern ID and northern UT late this afternoon
and evening. Forecast soundings show profiles supportive of
gusty/damaging winds in the strongest cores.

Other isolated thunderstorms may affect parts of TX/LA tonight as a
southern stream upper system approaches the region.


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