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Area forecast discussion 
National Weather Service Tulsa OK
531 am CST Monday Jan 26 2015

Aviation...
concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm/krog.
Stubborn MVFR ceilings continue across portions of western
Arkansas this morning. Expect that all taf sites should be
VFR within the next few hours. After that...VFR conditions
are expected to prevail for the remainder of the valid period
at all area taf sites.



&&

Previous discussion... /issued 247 am CST Monday Jan 26 2015/

Discussion...
the well-advertised warmup begins today and will last through
Wednesday. Guidance temperatures look much too cool today (mainly in eastern
ok)...as westerly low-level winds and sunny skies will promote
strong mixing. Expect high temperatures to be near 70f for parts
of eastern OK...and this may be a bit too cool. Cool bias in guidance
extends into Tuesday...although afternoon mixing will be less given
the rather weak wind fields. Even so...expect another day with highs
ranging from the middle 60s to lower 70s. Wednesday should be the
warmest day...as a strong thermal ridge develops ahead of an
approaching cold front. Expect highs in the 70s for most
locations...with middle 70s likely across eastern OK.

Despite the 3 day stretch of warm weather...record highs will most
likely remain intact...although it could be close today at tul/mlc.

Record highs for late January...

Jan 26 Jan 27 Jan 28
tul.....71 (1911)...74 (1914)...82 (1909)
mlc.....72 (1994)...76 (1975)...77 (1970)
fyv.....74 (1952)...72 (1975)...72 (2002)
fsm.....80 (1952)...78 (1914)...79 (1970)

Aforementioned cold front will pass through dry Wednesday
night...but it will bring enough cool air to knock thursdays
afternoon temperatures down a good 15-20f degrees from Wednesday.

Confidence hasn't increased concerning the forecast for the
weekend...as the longer range models continue to struggle resolving
the split-flow pattern. The 00z European model (ecmwf) has come in a bit wetter than
previous runs...and develops precipitation well into the cold air
late Saturday into Saturday night. Will continue to follow the GFS
(which gets support from the Gem/dgex)...with the best chances
remaining across the southern half of the forecast area with light precipitation
tapering off Saturday night. Forecast thermal profiles support a
light wintry mix late Friday night and again Saturday night...but
again confidence remains quite low. The forecast details will no
doubt change and will continue to be fine-tuned...so stay aware of
the latest updates.

&&

Tsa watches/warnings/advisories...
OK...none.
Arkansas...none.
&&

$$



Aviation...10

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