Area Forecast Discussion
Issued by NWS Brownsville, TX

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FXUS64 KBRO 031118 AAA
AFDBRO

Area Forecast Discussion...UPDATED
National Weather Service Brownsville TX
518 AM CST Wed Mar 3 2021

.DISCUSSION...Updated for latest aviation discussion below.

&&

.AVIATION...Mostly clear skies with light and variable winds
prevail at local aerodromes early this morning. Very light winds
will gradually increase and become easterly later this morning
into the afternoon. VFR conditions will prevail for the next 24
hours with high pressure in control.

&&

.PREV DISCUSSION... /issued 408 AM CST Wed Mar 3 2021/

SHORT TERM (Now through Thursday): A dry and nearly zonal flow
aloft will prevail over deep south Texas through the period. At the
surface, high pressure across east Texas this morning will move
eastward today. As surface high pressure slides eastward, onshore
flow will return by this afternoon leading to increasing low level
moisture and warming temperatures through the rest of the period.
Highs today will range from the low to mid 60s along the coast to
the 70s inland under partly cloudy skies. Lows tonight are expected
to fall into the lower 50s across the northern ranchlands to the mid
to upper 50s across the Valley and along the coast. Thursday will be
warmer with highs generally in the mid to upper 70s across the
eastern half of the CWA to the 80s across the west.

LONG TERM (Thursday Night through Tuesday): The passage of a cold
front on Friday will produce isolated showers at that time. For
the remainder of the forecast period, a zonal flow in the middle
layers of the atmosphere over Deep South Texas and the Rio Grande
Valley will lead to dry weather with mild days and cool nights.

MARINE (Now through Thursday): Favorable conditions will prevail
today through Thursday with high pressure in control. Light to
moderate east to southeast flow and low seas are expected along the
lower Texas coast through the period.

Thursday Night through Tuesday: After favorable marine conditions
Thursday night through Friday night, stronger winds and rougher
seas will prevail for the remainder of the forecast period due to
the passage of a cold front and an enhanced pressure gradient.
Small Craft Exercise Caution is likely to be needed periodically
Saturday through Tuesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  70  56  73  61 /   0   0   0   0
BROWNSVILLE          73  56  75  63 /   0   0   0   0
HARLINGEN            73  54  76  62 /   0   0   0   0
MCALLEN              77  56  78  62 /   0   0   0   0
RIO GRANDE CITY      79  55  82  61 /   0   0   0   0
SOUTH PADRE ISLAND   64  59  66  63 /   0   0   0   0

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...None.
GM...None.
&&

$$

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63-KC



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