734 FXUS64 KMRX 280513 AAA AFDMRX Area Forecast Discussion...UPDATED National Weather Service Morristown TN 1213 AM EST Sat Feb 28 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1211 AM EST Sat Feb 28 2026 - Dry and mild conditions through the weekend. - Rain chances return the first of the week, with slight chances persisting thereafter. - Warming trend through the period with high temps 15 to 20 degrees above normal by the end of the period. && .DISCUSSION... Issued at 128 PM EST Fri Feb 27 2026 Not much to talk about over the next 7 days. Dry and mild conditions are expected through the weekend. A dry cold front is expected to come through on Sunday, NBM currently has no POPs, but we will see an increase in clouds. Temps on Monday will be slightly cooler behind the front, but still mild, and rain chances begin to increase as a weak disturbance moves through zonal flow and across our area. Slight chance to chance POPs hang around through Tuesday as this disturbance slowly pushes east. The higher POPs are north of I-40 with lesser POPs south of I-40. Wednesday through Friday, temperatures ramp up as ridging strengthens across the southeast. High temps will generally be in the 70s with the southern TN Valley possibly hitting 80 degrees by Friday. NBM keeps some POPs in place during this time to account for a potential system coming through during this timeframe. Overall, no hazardous weather is expected at this point in time. && .AVIATION... (06Z TAFS) Issued at 1211 AM EST Sat Feb 28 2026 The only potential aviation impact this period is fog at TRI late tonight. Clear and calm conditions with a low dewpoint depression in current obs suggest fog is possible, but model guidance is not in good agreement. Will mention the possibility with a TEMPO for MVFR vis, but if it does form, lower conditions are likely. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 71 45 73 48 / 0 0 0 10 Knoxville McGhee Tyson Airport, TN 67 45 68 45 / 0 0 0 20 Oak Ridge, TN 68 44 68 44 / 0 0 0 20 Tri Cities Airport, TN 64 40 63 39 / 0 0 0 20 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DISCUSSION...99 AVIATION...DGS