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fxus64 kmrx 122356 

Area forecast discussion
National Weather Service Morristown Tennessee
656 PM EST Thu Dec 12 2019

Aviation...models continue to show a couple of short waves
impacting the area through the forecast period. The first feature
is pressing northeast toward the Piedmont and will have some
impact on the Great Valley airports. The greatest impact should
occur at cha where a southerly component to the flow will bring in
some lower MVFR ceilings later this evening with some MVFR and
variable IFR ceilings. Flight weather will deteriorate later in
the overnight period at tys and tri where MVFR ceilings and
visibility restrictions will occur. The temperature may be just
cold enough for a few of the pre-dawn hours at tri for some light
freezing rain before warmer air changes precip to rain. Models
suggest a bit of a break in the action following the first wave,
so used this idea with minor improvement followed by deteriorating
flight weather later in the forecast as the next wave builds into
the southern appalachian region.


Mrx watches/warnings/advisories...

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