FXUS64 KLCH 182015
Area Forecast Discussion
National Weather Service Lake Charles LA
315 PM CDT Mon Mar 18 2019
Wx map shows 1031mb surface high over the Central Plains, with
the southern portion of this high continuing to ridge over our
region. Cirrus continues to stream over the region, stemming from
an upper level disturbance in the southwest flow aloft generating
considerable cloud cover and showers over the western Gulf and
lower Texas. This precipitation expected to stay well south of SE
TX/S LA, thus have removed the low end pop chances for the
20-60nm marine zones.
As the upper level disturbance across the Gulf moves east and the
high builds south, clouds and winds will diminish this evening and
overnight. This will allow temperatures to fall in the mid to
upper 40s for lows Tuesday morning, and highs in the mid 60s for
Tuesday afternoon. Another re-enforcing cool front and high
pressure cell expected Wednesday night into Thursday morning will
bring continued cool conditions through Thursday.
By Friday, the high will slip east, allowing for return southeast
to southerly flow to prevail through the weekend. The chance of
showers and thunderstorms will return by Saturday and Sunday due
to increased Gulf moisture interacting with an upper level trough
approaching the region from the West.
Moderate to strong northeast winds will prevail through Tuesday as
high pressure builds across the region. Winds will diminish by
Wednesday as the high settles over the region. Latest guidance
shows slightly higher winds speeds over the 20-60nm zones east of
Cameron, thus have issued a Small Craft Advisory for these zones.
Offshore flow expected to become re- established on Thursday as
another cold front moves through the region. High pressure will
move east of the region by Friday into the weekend, with onshore
flow expected to prevail during this period. An upper level
disturbance will bring the chance of showers and thunderstorms
over the weekend.
.PRELIMINARY POINT TEMPS/POPS...
AEX 44 66 41 69 / 0 0 0 0
LCH 46 67 45 69 / 0 0 0 0
LFT 45 67 43 68 / 0 0 0 0
BPT 49 67 48 69 / 0 0 0 0
GM...Small Craft Advisory until 10 AM CDT Tuesday for GMZ472-475.
Small Craft Exercise Caution through Tuesday morning for GMZ450-
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