Area Forecast Discussion
Issued by NWS San Angelo, TX
FXUS64 KSJT 081139 AAA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
539 AM CST SUN DEC 8 2013
See aviation discussion below...
Stratus is resulting in MVFR/IFR conditions at KBBD and KABI. The
stratus is slowly beginning to clear from southwest to northeast,
and I expect KBBD to become VFR around 13z, and KABI around 14z.
Winds will become southwest at 5 to 10 knots, then become and light
and variable after 00z.
.PREV DISCUSSION... /ISSUED 359 AM CST SUN DEC 8 2013/
A brief warm up is expected today, followed by another cold front
overnight. Skies are beginning to clear across our southwest
counties, and I expect this clearing line to continue to slowly
move northeast during the early morning hours. All areas should
clear by mid to late morning. Winds will become southwest as
surface high pressure shifts east of West Central Texas. This in
combination with partly cloudy skies should allow for warmer
temperatures than what we have experienced the last few days,
albeit still well below normal. I did stay slightly below guidance
as a lot of the suns energy will go into melting any existing
ice/sleet that remains across the area. Highs will range from the
upper 30s to near 40 north of Interstate 20, to near 50 across the
Interstate 10 corridor.
A potent upper level trough will swing across the Northern Plains
today, sending a cold front into the northern Big Country around
midnight, and to the Interstate 10 corridor by 6 AM. Much colder
temperatures will filter into the area behind the front, with
north winds increasing to 8 to 12 mph. Low temperatures will fall
into the teens to near 20 across the Big Country, to the mid 20s
elsewhere. Post frontal stratus is forecast to develop during the
early morning hours Monday.
After the brief warm-up for Sunday, a cold front will move through
Texas Monday, pushing temperatures back down into the 30s and 40s
for highs. No significant precipitation is expected with the front
as it moves quickly through the area, but we did leave some slight
chance PoPs in southeast of a Mason to Junction line.
Flow becomes zonal across the northern tier of the CONUS through
the end of the week as an upper level low slowly makes its way
toward west Texas. This will encourage southerly low level flow
for our area. Slowly warming temperatures will result, with
moisture finally making a surge northward on Friday. As the
southwest upper level low moves toward the area late in the week,
we will see at least a slight chance for precipitation for areas
generally east of an Ozona to Abilene line Thursday night into
Friday, and this precipitation is expected to be liquid at this
Temperatures will slowly warm through the week, but should remain
cooler than normal through Thursday. By Friday into the weekend,
highs should be nearing 60 degrees with lows mainly in the mid 30s
to near 40.
.PRELIMINARY POINT TEMPS/POPS...
Abilene 39 20 32 18 39 / 5 0 5 5 0
San Angelo 47 23 40 20 43 / 5 0 5 5 5
Junction 51 26 43 25 44 / 5 5 10 10 5