National Weather Service Raw Text Product

289 
FXUS64 KSJT 200534
AFDSJT

Area Forecast Discussion
National Weather Service San Angelo TX
1234 AM CDT Fri Apr 20 2018

.AVIATION... 
/06Z TAFS/
VFR conditions will continue across the West Central Texas TAF
sites through 06Z Saturday, with gradually increasing clouds (CIGs
at around 4000-6000 ft agl) developing after 09-12Z today. SE 
winds will strengthen at around 13-15Z today, reaching 15-20 kt 
with gusts 25-30 kt at the TAF sites. Winds should start to weaken
around 03Z Saturday. 

&&

.PREV DISCUSSION... /issued 619 PM CDT Thu Apr 19 2018/ 

AVIATION...
/00Z TAFS/

VFR conditions will continue across West Central Texas terminals
through Friday, although clouds cover will gradually increase and
eventually lower into a ceiling in the 4k to 6k foot range for
much of Friday. East and southeast winds around 10kts tonight will
increase and become gusty for much of the daylight hours.

PREV DISCUSSION... /issued 252 PM CDT Thu Apr 19 2018/ 

SHORT TERM... 
(Tonight and Friday)

.Continued Cool with Possible Rain...

The forecast headline for the next 24 hours highlights the 
approaching upper-level storm system. For tonight, surface high 
pressure will continue to move farther to the east. This movement 
will produce winds tonight from more of a southeast direction. Plus, 
clouds will increase overnight, as the upper-level system, to the 
west, moves closer to Texas. This wind shift tonight will begin to 
bring warmer temperatures into West Central Texas. Thus, overnight 
lows tonight will be warmer than last night, mainly in the 45 to 50 
range. For Friday, increasing clouds will limit sunshine. Plus, 
winds from the southeast will be gusty at times, especially during 
the afternoon. Highs tomorrow will remain on the cool side of 
normal, with numbers mainly in the upper 60s to the lower 70s. As 
the upper-level system moves closer to Texas, the resulting flow 
aloft, from the southwest, may have embedded minor disturbances in 
it; these disturbances could initiate showers and thunderstorms 
Friday. Thus, continuing slight chance PoPs for Friday looks 
reasonable.

LONG TERM...
(Friday Night through next Thursday)

The upper low will move from south-central Colorado Friday evening, 
to the Kansas/Oklahoma border by Saturday evening. The dryline will 
advance east across our area on Saturday, and by mid-afternoon 
should be along the eastern border of our forecast area. The highest 
chances for showers and thunderstorms will be across our northern 
counties Friday night, and across the northeastern part of our area 
on Saturday. The lowest PoPs will be across the southwestern part of 
our area. Some clearing is expected Saturday afternoon over the 
western part of our area, where the warmer highs (in the upper 70s 
to lower 80s) are expected. Could also have a window for elevated 
fire weather conditions in our far western and southwestern counties 
for a few hours Saturday afternoon, where somewhat gusty west winds 
combine with relative humidity values dropping to 20-25 percent.

A cold frontal passage from the north is expected across the 
northern third of our area by early evening Saturday, and across the 
rest of our area early Saturday night. Gusty north winds will follow 
passage of this front, and temperatures will be cooler overnight 
into Sunday. Lows Saturday night are expected to be in the mid to 
upper 40s, with highs on Sunday ranging from the upper 60s across
the northeastern part of our area, to the mid 70s along the I-10 
corridor. 

Dry conditions with a warming trend in temperatures expected Monday 
into Tuesday. The next chance for showers and thunderstorms will be 
with a cold front, which is progged to move south into our northern 
counties Tuesday afternoon and evening, and across the rest of our 
area Tuesday night. Carrying 20-30 PoPs at this time. After warm 
temperatures (highs mostly 80-85) on Tuesday, temperatures will be 
cooler Wednesday behind the front with increased cloud cover 
(especially for our northern counties). Beyond Wednesday, rain 
chances look to uncertain at this point to include in the forecast.
Warmer temperatures are indicated Thursday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene 	 70  55  74  46 /  20  50  30  10 
San Angelo 	 73  58  82  47 /  20  40  20   5 
Junction 	 73  59  79  49 /  20  30  30   5 
Brownwood 	 70  55  75  46 /  20  50  40  10 
Sweetwater 	 70  56  73  45 /  20  50  20  10 
Ozona      	 71  58  80  48 /  20  30  10   0 

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

07/SJH