Area Forecast Discussion
Issued by NWS Nashville, TN
Issued by NWS Nashville, TN
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
469 FXUS64 KOHX 020526 AFDOHX Area Forecast Discussion National Weather Service Nashville TN 1226 AM CDT Fri Oct 2 2026 ...New AVIATION... .KEY MESSAGES... Updated at 1225 AM CDT Fri Oct 2 2026 - Medium to high rain chances develop Friday and continue into Sunday. Isolated thunderstorms are forecast, but severe weather is not expected at this time. - Low to medium chance for more than 1 inch of rain this weekend with the heaviest rain expected Friday afternoon and Sunday. - Cooler, drier conditions are expected for next week. && .SHORT TERM... (Tonight through Saturday Night) Issued at 1130 PM CDT Thu Oct 1 2026 The storm system off to our west continues to draw closer to the Tennessee and Ohio Valleys. Warmer, more moist air is being advected into the area this evening and you can tell outside that humidity levels are up compared to just a couple days ago. The main moisture axis now stretches from southern Texas into the Great Lakes. Though we are seeing an increase in moisture approaching the area, the overall strength of the low pressure system is decreasing with the upper-level dynamics now shearing out and lifting northeastward into the Polar jet stream. Most areas of rain and storms to the west are losing intensity. This will continue to be the case with rain shower activity moving into Middle Tennessee tomorrow. It doesn`t appear we`ll experience a solid line of rain/storms, but rather scattered/fragmented activity, though some potential for heating to get a couple storms going. Overall this does not appear to bring a drought busting rain event, but a welcome cool down with rain and cloud cover then an initial cold frontal passage Friday afternoon/evening. Though the surface front will be to our south on Saturday, weak 925-850 mb confluence will remain across Middle Tennessee with lingering southwesterly flow aloft supporting isentropic ascent. Light to moderate rain showers are possible throughout the day with mostly cloudy to cloudy skies. && .LONG TERM... (Sunday through next Friday) Issued at 1130 PM CDT Thu Oct 1 2026 Southwesterly flow aloft and lingering low- to mid-level deformation are progged to be in place near our region on Sunday. We could also see favorable alignment of the right entrance region of the upper-level jet, at least briefly, but these features have varying placement depending on individual model solutions. These forcing considerations will help bring additional rain showers to the area, best chances are across the southeast half of Middle Tennessee. Finally, a prominent northern stream disturbance and associated reinforcing cold front is expected to arrive Monday morning. This will bring a notably cooler, drier airmass that is forecast to stick around for much of next week. Lows into the low 40s to low 50s are expected, though the dry airmass will allow for efficient afternoon warming as well; into the 80s west of the Plateau by mid week. && .AVIATION... (06Z TAFS) Issued at 1225 AM CDT Fri Oct 2 2026 VFR will continue through at least 18Z with south to southwest winds 5-10KT. An approaching front accompanied by scattered to numerous showers will move into the area after 18Z. Cigs/vsbys will dip to MVFR at times through the afternoon. Conditions will drop rapidly after 03/00Z with low cigs, light showers and mist developing along and north of the surface front. Post frontal winds will be northwest to north 5-10KT. && .PRELIMINARY POINT TEMPS/POPS... Nashville 88 63 78 63 / 80 50 40 40 Clarksville 80 59 76 59 / 90 40 20 20 Crossville 83 63 76 62 / 60 50 40 50 Columbia 90 65 81 64 / 70 50 40 50 Cookeville 84 64 75 63 / 70 60 30 50 Jamestown 83 63 73 62 / 70 70 40 50 Lawrenceburg 89 64 80 64 / 50 40 40 50 Murfreesboro 91 65 81 64 / 70 60 30 50 Waverly 78 61 73 61 / 90 40 20 30 && .OHX WATCHES/WARNINGS/ADVISORIES... None. && $$ SHORT TERM...Sizemore LONG TERM....Sizemore AVIATION.....13