Area Forecast Discussion
Issued by NWS Nashville, TN
Issued by NWS Nashville, TN
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442 FXUS64 KOHX 190146 AFDOHX Area Forecast Discussion National Weather Service Nashville TN 846 PM CDT Tue Jun 18 2024 ...New UPDATE... .UPDATE... Issued at 842 PM CDT Tue Jun 18 2024 Radar this evening shows the earlier shower activity across the midstate has dissipated. Surface obs indicate it`s still very warm and humid with current temps in the mid 70s to low 80s and dewpoints in the upper 60s and 70s. This very moist airmass will not allow temps to drop much overnight, and lows are only expected to reach the mid 60s on the Plateau and upper 60s to low 70s elsewhere. A few areas of patchy fog are possible overnight but nothing widespread is anticipated. Current forecast has this all covered well and only made minor updates based on latest NBM. && .SHORT TERM... (Rest of today through Wednesday) Issued at 1159 AM CDT Tue Jun 18 2024 Will keep a slight chance of showers and thunderstorms for locations west of I-65 Corridor and for locations approaching TN/KY Border Region through mid afternoon hours today. Otherwise building upper level ridging influences from our east along with a continuance of southerly based low level atmospheric flow will provide for dry but seasonally warm temperatures through Wednesday afternoon. Current regional temperature trends continue to support forecasted high temperatures for afternoon hours today ranging generally upper 80s to lower 90s, mid 80s higher elevations of Cumberland Plateau Region. Lows tonight will be seasonably mild ranging generally in low to mid 70s, upper 60s to around 70 Cumberland Plateau Region. Highs on Wednesday will be like those experienced this afternoon. Prevalence of scattered to broken high level cloudiness at times will inhibit max heating potential and thus not expecting temperatures to get significantly warmer than these values despite enhancing upper level ridging influences. && .LONG TERM... (Wednesday Night through next Tuesday) Issued at 1159 AM CDT Tue Jun 18 2024 Upper level ridging influences will continue to build and strengthen across our area at least through Saturday afternoon with a diffuse southerly low level atmospheric flow continuing. Dry conditions will continue to prevail. Temperatures will continue to warm, with highs in low to mid 90s on Thursday with century mark certainly not out of question for Nashville Metro Area and other locations west of Cumberland Plateau Region on Saturday. Relative humidity values during afternoon hours Thursday through Saturday will have a decreasing values trend, so not expecting heat index values to become a factor. Finally upper level ridging begins to weaken as second half of weekend into first part of next work week progresses with a more northwesterly flow pattern aloft potentially developing and ushering in upper level disturbances in flow. Another century mark day could be in store for Nashville Metro Area on Sunday, with mid to upper 90s for other locations west of Cumberland Plateau Region, lower 90s across these locations, with isolated to scattered showers and thunderstorms possible. High temperatures on Monday and Tuesday west of Cumberland Plateau Region will range in low to mid 90s, around 90 Cumberland Plateau Region, with enough humidity now to support heat index values west of Cumberland Plateau Region ranging 100 to 105 degrees. Nighttime lows Sunday night through next Tuesday night will be in low to mid 70s, upper 60s to around 70 for locations just west of and across Cumberland Plateau Region. && .AVIATION... (00Z TAFS) Issued at 609 PM CDT Tue Jun 18 2024 VFR expected through the next 24 hours. Strong upper level high pressure will suppress anything more than very isolated showers. Skies will feature scattered cumulus clouds and continued broken to overcast cirrus clouds. Winds will be light, varying from ENE to SSE. && .PRELIMINARY POINT TEMPS/POPS... Nashville 74 90 70 95 / 0 0 0 0 Clarksville 72 89 69 93 / 10 0 0 0 Crossville 64 85 64 88 / 0 0 0 0 Columbia 71 90 68 94 / 10 0 0 0 Cookeville 69 87 67 90 / 0 0 0 0 Jamestown 66 87 65 89 / 0 0 0 0 Lawrenceburg 71 88 67 92 / 0 0 0 0 Murfreesboro 71 91 68 94 / 0 0 0 0 Waverly 71 88 69 93 / 10 0 0 0 && .OHX WATCHES/WARNINGS/ADVISORIES... None. && $$ UPDATE.......Shamburger SHORT TERM...JB Wright LONG TERM....JB Wright AVIATION.....13