Area Forecast Discussion
Issued by NWS Corpus Christi, TX

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FXUS64 KCRP 240440 AAC
AFDCRP

Area Forecast Discussion...UPDATED
National Weather Service Corpus Christi TX
1040 PM CST Thu Feb 23 2017

.DISCUSSION...See Aviation section for 06Z TAFs.

&&

.AVIATION...Sea breeze boundary has moved through the Brush
Country this evening. Dewpoint temperatures are in the 50s at COT
and LRD with upper 60s across the coastal plains. Satellite
imagery shows some patchy stratus/IFR ceilings were over the
Victoria Crossroads. The moist boundary layer will be very shallow
tonight with very dry air above. Winds will become light after
midnight as trough axis moves into the eastern Brush Country.
Expect areas of fog/IFR vsbys will develop around 08Z over the
inland coastal plains and become dense/LIFR by 10Z. Winds may be
slightly stronger at CRP to limit fog from becoming dense. The
trough axis will move through the coast early Friday morning ahead
of the frontal boundary moving into the Brush Country. May see
brief period from 10-14Z of fog/stratus along the front affecting
the COT area. Otherwise, conditions should rapidly improve to VFR
15-16Z as the front moves through the area. North winds could
become gusty over the Brush Country/Coastal Bend late morning into
afternoon under clear skies.

&&

.PREVIOUS DISCUSSION... /Issued 901 PM CST Thu Feb 23 2017/

DISCUSSION...Sea breeze boundary has pushed inland with higher
dewpoints into eastern portions of the Brush Country. Moist
boundary layer is very shallow underneath a very strong inversion
around 1000 feet on the 00Z CRP sounding. This is leading to a
strong anomalous propagation on KCRP radar especially over the
Gulf of Mexico as radar wave is being ducted underneath this
inversion. Adjusted wind speeds for this evening along the coast
as winds are a little stronger over the northern bays with SCEC
conditions until around midnight. Trough axis will move into the
Brush Country overnight with winds becoming light over the coastal
plains and gradually veering. With dewpoint temperatures in the
mid to upper 60s over the coastal plains and very dry air just
above the surface, still looks like the inland coastal plains will
see a period of fog from 10-15Z Friday. Winds will be a little
stronger closer to the coast, so dense fog not likely in this
region. But dense fog could occur along a ALI-BEA-VCT line.


&&

.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi    63  88  54  75  59  /   0   0   0   0   0
Victoria          62  85  46  72  50  /   0   0   0   0   0
Laredo            60  87  53  79  57  /   0   0   0   0   0
Alice             58  88  49  78  56  /   0   0   0   0   0
Rockport          65  83  55  72  60  /   0   0   0   0   0
Cotulla           57  87  47  76  52  /   0   0   0   0   0
Kingsville        59  90  50  77  57  /   0   0   0   0   0
Navy Corpus       66  83  59  73  61  /   0   0   0   0   0

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.

&&

$$

TMT/89...AVIATION



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