Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000 FXUS64 KMRX 221857 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 257 PM EDT MON AUG 22 2016 .SHORT TERM (Tonight and Tuesday)...
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We will remain in a quiet weather pattern through the short term with surface high pressure in control. Dry air continues to filter in and dew points have fallen into the 50s across most locations. With clear skies overnight...temperatures should drop into the mid 50s to mid 60s range. Slight warming of the air mass expected on Tuesday with highs expected to range for the mid 80s north to around 90 south. .LONG TERM (Tuesday Night through Monday)...Ridge aloft begins to build across the area Tuesday and remains anchored in place through Friday before shifting slightly eastward in advance of an approaching trough by Saturday. However, ridge is expected to persist...and may even strengthen some if ECMWF solution is correct...Saturday and Sunday. With it, expect temperatures to climb back to slightly above normal by Thursday and persist into Monday. At the surface, high pressure is centered off the Middle Atlantic Coast Tuesday night with ridge axis extending SW across Virginia and East Tennessee. This ridge axis will slowly shift SE bringing a return to low-level southerly flow on Wednesday and Thursday. Approaching frontal boundary will weaken as it moves into the area late Friday with guidance split on timing and dissipation of this feature. Regardless, the increasing low level moisture and return of dewpoint temperatures around 70 degrees F will bring with it an increasing chances for diurnal convection through the end of the forecast period.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Chattanooga Airport, TN 65 90 72 90 / 0 10 10 30 Knoxville McGhee Tyson Airport, TN 62 87 70 89 / 0 10 10 20 Oak Ridge, TN 62 87 69 90 / 0 10 10 20 Tri Cities Airport, TN 59 86 64 87 / 0 0 0 10
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ MJB/EJH

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