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

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
916 FXUS64 KMRX 231912 AFDMRX Area Forecast Discussion National Weather Service Morristown TN 312 PM EDT Thu Mar 23 2017 .SHORT TERM...(Tonight through Tomorrow)...A fairly calm night in store but with increasing clouds as the lower levels of the atmosphere begins to moisten up. Surface high pressure, and up to 850 mb, is centered just off to our east. This brings in a decent fetch of moisture from out of the Atlantic and into our area. This will provide cloudy to mostly cloudy skies overnight. Cloud cover that moves in overnight can currently be seen on VIS sat imagery across Central and Southern Georgia. Increased cloud cover will allow lows to be around 5 degrees above normal with lows in the lower to upper 40s. Unfortunately, clouds linger tomorrow but with increasing southerly flow comes increasing temperatures. Temperatures will be quite nice with highs in the upper 60s for most locations, which is around 5 degrees above normal. There could be a few peaks of sunshine later in the afternoon. .LONG TERM...(Friday night through Thursday)...Ridging continues to slide east Friday night, ahead of a closed low that will approach from the west on Saturday. A cold front will associated showers and thunderstorms will push into the area by Saturday night. Rain chances will decrease throughout the day on Sunday as the low lifts northeast. Weak ridging briefly builds in for Monday before a shortwave approaches Monday night/Tuesday bringing the next chance for showers. It looks like there will be enough instability to trigger a few thunderstorms with this system. Things dry out again on Wednesday as the shortwave pushes east and upper level ridging builds. Again, this won`t last long with another system approaching for the end of the workweek. Temperatures will be slightly warmer than normal for this time of year through the extended period with highs in the low to mid 70s and lows generally in the 50s. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 49 69 54 71 / 0 0 10 50 Knoxville McGhee Tyson Airport, TN 45 67 53 72 / 0 0 10 40 Oak Ridge, TN 45 69 52 71 / 0 0 10 40 Tri Cities Airport, TN 39 68 48 70 / 0 0 10 20 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...None. TN...None. VA...None. && $$ SR/EMH

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.