Area Forecast Discussion
Issued by NWS Corpus Christi, TX
FXUS64 KCRP 251540 AAB
Area Forecast Discussion...UPDATED
National Weather Service Corpus Christi TX
1040 AM CDT Tue Apr 25 2017
.DISCUSSION...12Z CRP sounding indicated very warm temperatures
of 22 degrees C around 85H. Southwesterly flow at this level will
continue to increase warmth at this level close to 25 degrees C
this afternoon. Forecast of well above normal temperatures is
still on track for today. Stratus has persisted over the Brush
Country a little longer than expected but satellite imagery shows
a rapid decreasing trend in the past hour. Visible images show an
influx of moisture/clouds moving northward over the Gulf waters of
the Middle and Lower Texas coasts. Southerly flow will bring this
area of cloud cover into the Mid-Coast and Victoria Crossroads
this afternoon. Will hold on to cloud cover over this region for
most of the afternoon. This will lead to slightly lower high
temperatures from Rockport to Goliad and eastward. Breezy conditions
will continue for the coastal plains with windy conditions for
the southern Coastal Bend.
.MARINE...Southerly winds have been a little slower to increase
mainly over the offshore waters. Wind speeds have already
increased to SCA along the coast from Port Aransas southward.
Expect wind speeds will continue slow to SCA over the offshore
Gulf waters by this afternoon. Made no changes to current SCA.
.PREVIOUS DISCUSSION... /Issued 641 AM CDT Tue Apr 25 2017/
See Aviation discussion for 12Z TAFS.
GOES-R fog imagery is showing the clouds with CIGS between 1500
AND 2500 feet (mainly) to be moving or already over the eastern
terminals. Thus, have MVFR CIGS going eastern terminals but some
breaks possible KCRP as there are some thin-ness in the cover
here. Farther west, will keep the TEMPO MVFR CIGS as last couple
of fog imagery shows some clouds developing along the Rio Grande.
VSBYS are 10SM, so removed any mention of fog. Winds increase as
MVFR clouds dissipate and/or raise during the day over the eastern
terminals, with winds diminishing by early afternoon at KLRD with
passage of surface boundary. Winds also weaken later in the
afternoon at KALI for the same boundary. Should have VFR all
terminals AOA 19Z (KVCT last one to go VFR) with breezy south
winds. Except at KVCT where temp/dew point depressions are
expected to not be large after sunset (like other terminals), will
delay the MVFR CIGS until after 06Z (it will be before 06Z at
KVCT). Winds stay up too, delaying MVFR conditions. Winds taper
off late, with winds shifting west at KLRD before end of terminal
.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi 91 74 98 64 86 / 0 0 0 10 0
Victoria 86 73 94 57 86 / 10 10 10 10 0
Laredo 101 73 101 63 96 / 0 0 0 0 0
Alice 98 72 97 60 91 / 0 0 0 10 0
Rockport 84 75 94 66 84 / 0 10 10 10 0
Cotulla 99 69 96 59 93 / 0 0 0 0 0
Kingsville 97 73 98 62 89 / 0 0 0 10 0
Navy Corpus 87 75 93 69 85 / 0 10 10 10 0
GM...Small Craft Advisory until 10 AM CDT Wednesday For the following
zones: Coastal waters from Baffin Bay to Port Aransas out
20 NM...Coastal waters from Port Aransas to Matagorda Ship
Channel out 20 NM...Waters from Baffin Bay to Port Aransas
from 20 to 60 NM...Waters from Port Aransas to Matagorda
Ship Channel from 20 to 60 NM.
Small Craft Advisory until 4 AM CDT Wednesday For the following
zones: Bays and Waterways from Baffin Bay to Port Aransas.