Area Forecast Discussion
Issued by NWS San Angelo, TX

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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
000
FXUS64 KSJT 251710
AFDSJT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
1110 AM CST SUN JAN 25 2015

.AVIATION...
/18Z TAFS/

High clouds will continue to thin across West Central TX,
resulting in mostly clear skies through the TAF period. Gusty
north winds will continue through the afternoon hours, diminishing
and backing to the west overnight. VFR conditions will prevail
areawide.

Johnson

&&

.PREV DISCUSSION... /ISSUED 529 AM CST SUN JAN 25 2015/

AVIATION...
/12Z TAFS/

VFR conditions and mostly clear skies are expected today and
tonight. Somewhat gusty north winds will follow passage of a
cold front this morning. The higher speeds and gusts will occur
at KABI. With the exception of KABI, winds will diminish this
evening to less than 5 kt and remain light overnight. Wind
speeds are expected to stay a little higher at KABI.

PREV DISCUSSION... /ISSUED 452 AM CST SUN JAN 25 2015/

SHORT TERM...
(Today and Tonight)

Trailing portion of cold front, associated with an upper shortwave
trough diving southeast across the Midwest, will push south
across our area this morning. Somewhat gusty north winds will
occur across the eastern two-thirds of our area following passage
of this front. With high cloud coverage thinning out, ample
sunshine will help to offset the weak cold air advection. Highs
this afternoon will range from the lower 60s across our northern
counties, to the upper 60s along the Interstate 10 corridor.

Winds will diminish this evening and become light across much of
our area tonight, as surface high pressure ridge develops
southeast along the Rio Grande Valley. Wind speeds should stay a
little higher across our northern and northeastern counties, which
will be farther away from the surface ridge axis. With clear skies
and dry air, good radiational cooling will occur, especially
across our central and southern counties which will have the
longest duration of light winds. Overnight lows are expected to
range from near 30 in the low- lying areas and river valleys of
our central and southern counties, to the mid/upper 30s across the
Big Country.

LONG TERM...
(Monday through Saturday)

The warming trend continues Monday through Wednesday as a high
amplitude ridge develops from the Rockies down across the Southern
Plains. Unseasonably warm temperatures can be expected with the
warmest readings occurring Tuesday and Wednesday as 850 mb
temperatures warm to a around 15 degrees C both days. Should have
no problem warming into the mid 70s areawide both days and could
even argue for some upper 70s, especially on Wednesday as surface
winds become more westerly by afternoon in response to a weak
surface trough traversing the area. For now, kept max temps in the
mid 70s both days but these numbers may need to be bumped up a bit
in later forecasts.

The next cold front arrives on Thursday, with temperatures cooling
into the 60s for afternoon highs. Focus then turns to a developing
upper low off the southern California coast by Friday, which tries
to cut off over the Baja region over the weekend. This system will
bring increasing rain chances to the area as early as Friday night
across southwest counties and across the rest of the area Friday
through the weekend as periodic disturbances lift northeast across
the area. Temperatures will remain on the cool side Friday through
Sunday with abundant cloud cover, rain chances and a reinforcing
front Saturday. Highs will cool from the lower 50s Friday, to the
upper 40s both Saturday and Sunday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Abilene  64  35  70  43  74 /   0   0   0   0   0
San Angelo  66  32  71  41  75 /   0   0   0   0   0
Junction  68  31  72  39  75 /   0   0   0   0   5

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

25




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.