Area Forecast Discussion
Issued by NWS Corpus Christi, TX
FXUS64 KCRP 270008
Area Forecast Discussion
National Weather Service Corpus Christi TX
708 PM CDT Wed Apr 26 2017
See Aviation for 00Z TAF Update.
VFR will prevail through the period. Moderate gusty northwest
winds will gradually relax this evening and overnight. Winds will
veer to the east then southeast again overnight into Thursday
morning. A moderate southeast flow will then prevail through the
end of the period.
.PREVIOUS DISCUSSION... /Issued 249 PM CDT Wed Apr 26 2017/
SHORT TERM (Tonight through Thursday night)...
Upper level short wave trough along I-35 over Oklahoma into north
Texas will continue to move northeast through the Ozarks this
evening and into the Mid-Mississippi River valley Thursday
morning. Cold front was located from Palestine to near Temple to
north of San Angelo at 20Z. The front will continue to move
southward and move into the Victoria Crossroads early this
evening. The front will push through the forecast area and the
coastal waters by late evening. The surface high will quickly move
to the east Thursday morning with onshore flow returning by noon
with an area of low pressure developing again over the southern
high plains in advance of the next upper low forming over the
central Rockies Thursday into Thursday night. Low temperatures
will be mild tonight with upper 50s expected across the northern
counties. Highs will be cooler on Thursday but still slightly
above normal. With return flow expected Thursday night, lows will
be back in the lower 70s with clouds increasing over the inland
coastal plains late at night.
Cold front, moving through central Texas at this time, will enter
the coastal waters this evening. North to northeast winds will
briefly increase to moderate to strong levels during the night.
SCA will be in effect for the Gulf waters from 03-11Z tonight.
Winds will turn back to onshore by mid morning on Thursday as high
pressure area moves to the east.
Drier air has finally arrived over the western portions of the
Brush Country with Cotulla showing RH values at 13 percent. The
stronger sustained winds have been near LRD while gusts have been
slightly above 25 knots over the RFW area. Winds should quickly
diminish by late afternoon. Will allow the RFW to expire at 23Z.
LONG TERM (Friday through Tuesday)...
The extended period begins with dry weather on Friday and warming
temperatures and increased moisture as return flow increases. An
upper level system will push out into the Plains on Saturday,
driving a cold front through the Coastal Bend Saturday night.
Showers and thunderstorms are possible out ahead of the front with
best chances in the Victoria Crossroads overnight into Sunday
morning. Forecast pressure gradient indicates likely SCA conditions
Saturday ahead of the front and again on Sunday behind the front.
High pressure builds into the region for the first part of the week,
with cooler temperatures and sunny skies. Return flow begins again
toward the middle of next week.
.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi 64 86 74 92 77 / 0 0 0 10 10
Victoria 57 85 71 91 75 / 0 0 10 10 10
Laredo 65 95 73 100 75 / 0 0 0 10 10
Alice 59 91 70 100 75 / 0 0 0 10 10
Rockport 64 83 75 85 78 / 0 0 0 10 10
Cotulla 58 93 70 99 74 / 0 0 10 10 10
Kingsville 62 89 72 98 77 / 0 0 0 10 10
Navy Corpus 67 83 75 86 78 / 0 0 0 10 10
GM...Small Craft Advisory from 10 PM this evening to 6 AM CDT
Thursday 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