Area Forecast Discussion
Issued by NWS Huntsville, AL
Issued by NWS Huntsville, AL
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
114 FXUS64 KHUN 210652 AFDHUN Area Forecast Discussion National Weather Service Huntsville AL 152 AM CDT Sat Sep 21 2024 ...New NEAR TERM, SHORT TERM, LONG TERM... .NEAR TERM... (Today) Issued at 152 AM CDT Sat Sep 21 2024 Some very light fog is possible heading into the early morning hrs this Sat, mainly in the more fog prone sheltered/valley areas and near any larger bodies of water. Otherwise, high pressure at the sfc remains layered across the southern Atlantic states, while a weak upper ridge axis gradually drifts eastward over the southern Plains/western Gulf region. These synoptic features are resulting in another quiet/seasonably warm day for the mid TN Valley, as afternoon highs again climb mainly into the lower 90s/near 90F, under mostly sunny skies. && .SHORT TERM... (Tonight through Tuesday) Issued at 152 AM CDT Sat Sep 21 2024 Little change in the overall pattern is expected into the second half of the weekend period, as high pressure over the southern Atlantic region remains fairly stagnant, while the upper ridge pattern translates more into the SE states. Lows early Sun look to fall into the mid 60s/near 70F, before temps again rebound into the lower 90s/near 90F later in the day. The upper ridge axis will continue to drift eastward into the first half of the work week, as a weak upper trough pattern traverses over the mid Plains. An increase in cloud cover may keep afternoon highs Mon closer to the 90F mark, before a weak cold front out of the Plains states approaches the Mid South/TN Valley areas on Tue. Low chances of showers/tstms (20-30%) will develop along/ahead of the approaching front on Tue, as highs trend more in the upper 80s/near 90F. Lows into early Tue also look to remain in the mid 60s/near 70F. && .LONG TERM... (Tuesday night through Friday) Issued at 152 AM CDT Sat Sep 21 2024 The front will settle more into the region by the middle of next week and potentially stall invof the mid TN Valley heading into the end of the work week. The upper trough pattern will also translate thru the Midwest/OH Valley regions past mid week, maintaining a low chc of showers/tstms in the forecast thru the end of the forecast period. The lack of a stronger return flow pattern/associated influx of moisture will offset the prob for higher rain chances next week, although this could easily change pending future model runs. Slightly cooler air will at least filter into the area Wed thru Fri with the passage of the front, with afternoon highs trending more in the lower/mid 80s. This slightly cooler air will also result in lows predom in the lower/mid 60s thru the end of the work week. && .AVIATION... (06Z TAFS) Issued at 1228 AM CDT Sat Sep 21 2024 With high pressure layered across the southern states, VFR conds are generally expected thru the TAF period. The exception may be some -br/MVFR vis early this morning and a TEMPO group has been maintained in the 09-12Z time frame. Light/var winds will also become WSW near 5-7kt late Sat morning. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...None. TN...None. && $$ NEAR TERM...09 SHORT TERM....09 LONG TERM....09 AVIATION...09