AFOS product AFDBMX
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Displaying AFOS PIL: AFDBMX
Product Timestamp: 2017-05-06 23:35 UTC

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FXUS64 KBMX 062335
AFDBMX

Area Forecast Discussion
National Weather Service Birmingham AL
635 PM CDT Sat May 6 2017

.UPDATE...
For 00Z Aviation and early This Evening.

&&

.SHORT TERM...
This Afternoon and Tonight.

Update...raised pops from likely to categorical for the areas 
near Centre, Gadsden, Oneonta, and Jacksonville. Showers and a few
thunderstorms will hold on along a secondary front moving down 
from the north. The activity should keep its trend of diminishing 
but delayed it a few hours. Additionally, the gusty winds will 
hold on an hour or so and diminish by 9 pm.

75

A secondary cold front associated with the weak surface low is 
evident as a fine line on radar imagery with a wind shift and 
towering cumulus as well. Showers and a couple thunderstorms have 
begun to develop along the front. CAMs indicate a broken line of 
showers and a couple embedded storms continuing to form in TN this
afternoon and pushing southward into northeast AL. Moisture is 
very limited with dewpoints barely reaching the low 50s right 
ahead of the front. 500 mb height falls will miss the region, and 
mid- level temperatures will be cool but warming with time. But 
there will be enough upper- level forcing and low-level 
convergence for this line to reach our far northeast counties by 
late this afternoon, with the best coverage in Cherokee County. 
Gusty winds will be possible with this line but should remain 
below severe limits due to very weak instability. The line should 
be weakening/dissipating across the northern counties this evening
as it becomes separated from the mid-level moisture axis and 
daytime heating is lost. Winds will shift to the north behind the 
front, decreasing towards sunrise. Lows will be in the upper 40s 
to low 50s, with some lower 40s in the far northeast. 

32/Davis

.LONG TERM...
Sunday through Friday.

A warming trend will continue on Sunday as the trough over the
eastern CONUS gradually moves away from our area. The pattern will
become rather stagnant and blocky through midweek with a trough
persisting over the Northeast and Southwest Conus. In between the
troughs, an upper-level ridge will be parked over the South 
Central states. This will result in dry and warm conditions across
the forecast area through Wednesday. Eventually the trough to our
west will begin to interact with the trough to our northeast,
causing a trough ejection across Texas and into the Southeast 
states on Thursday and Friday. Showers and storms appear likely on
Thursday night into Friday as this occurs.

87/Grantham


&&

.AVIATION...
00Z TAF Discussion.

--VFR conditions tonight through Sunday--

Fair characterizes the next 24-hours of flight conditions, with 
one aside; a front will move into central Alabama this evening, 
with a decaying line of showers. The line (located in far 
northern Alabama as of 23:30Z/6:30PM) is quite thin, and 
confidence is low on whether this activity will hold together long
enough to meet vicinity requirements across the northern 
terminals (a 10-20% chance overall). If vicinity or on-terminal 
showers were to occur, it'd be during a very brief window toward 
mid-late evening. For now, I've simply gone with an increase in 
cloudiness as I anticipate that to be the end result of this 
frontal passage.

Otherwise, gusty Saturday afternoon winds will diminish just after
sunset, with calm-light breezes overnight becoming ~5-10 knots 
post-sunrise Sunday. Trajectories will sway from ~westerly this 
evening, to ~northerly overnight, to ~northwesterly on Sunday.

89^GSatterwhite

&&

.FIRE WEATHER... 

A few showers and perhaps an isolated storm will be possible
across the north late this afternoon and early this evening. Dry 
conditions are expected Sunday through midweek. Recent rainfall 
will should prevent any fire weather concerns. 

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     46  73  45  79  53 /  20   0   0   0   0 
Anniston    48  73  47  79  54 /  20   0   0   0   0 
Birmingham  52  75  51  82  59 /  20   0   0   0   0 
Tuscaloosa  52  78  50  83  57 /  10   0   0   0   0 
Calera      51  75  52  82  58 /  10   0   0   0   0 
Auburn      53  74  52  80  58 /   0   0   0   0   0 
Montgomery  53  81  53  84  59 /   0   0   0   0   0 
Troy        52  80  49  83  55 /   0   0   0   0   0 

&&

.BMX WATCHES/WARNINGS/ADVISORIES/...
None. 

&&

$$