660
FXUS64 KLCH 191900
AFDLCH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
200 PM CDT TUE MAR 19 2019
DISCUSSION
WX MAP SHOWS 1032MB SFC HIGH OVER THE EASTERN U.S. THIS AFTERNOON,
WITH SOUTHWEST RIDGING KEEPING AN EASTERLY FLOW OVER THE REGION.
VISIBLE SATELLITE FINALLY SHOWING THE SCATTERED TO BROKEN MID TO
HIGH CLOUD LAYERS DISSIPATING THIS AFTERNOON, LEAVING MOSTLY SUNNY
SKIES FOR THE REGION. AFTERNOON TEMPERATURES IN THE UPPER 60S TO
NEAR 70.
THE WEAK RIDGING WILL ALLOW WINDS TO DIMINISH THIS EVENING AND
OVERNIGHT. WITH THE MOSTLY CLEAR SKIES, THIS WILL ALLOW TEMPERATURES
TO FALL IN THE LOWER 40S ACROSS C LA, MID 40S S LA AND INLAND SE
TX, AND UPPER 40S ALONG THE I-10 CORRIDOR OF SE TX TO THE COAST.
ANOTHER RE-ENFORCING COOL FRONT AND HIGH PRESSURE WILL MOVE THROUGH
THE REGION WEDNESDAY NIGHT INTO THURSDAY MORNING, CONTINUING THE
COOL CONDITIONS THROUGH FRIDAY.
BY SATURDAY, THE HIGH WILL SLIP EAST, ALLOWING FOR RETURN SOUTHEAST
TO SOUTHERLY FLOW TO PREVAIL THROUGH THE REMAINDER OF THE
WEEKEND. THE LOW CHANCES OF SHOWERS AND THUNDERSTORMS WILL RETURN
BY SATURDAY, WITH SLIGHTLY HIGHER CHANCES SUNDAY INTO EARLY MONDAY
AS AN UPPER LEVEL TROUGH APPROACHES FROM THE WEST.
DML
MARINE
EAST WINDS WILL DIMINISH TONIGHT AS HIGH PRESSURE BUILDS ACROSS
THE REGION. LIGHT WINDS WILL PREVAIL UNTIL PASSAGE OF ANOTHER COLD
FRONT WEDNESDAY NIGHT INTO THURSDAY MORNING, RESULTING IN A BRIEF
PERIOD OF ELEVATED OFFSHORE FLOW. HIGH PRESSURE WILL MOVE EAST OF
THE REGION FRIDAY, WITH ONSHORE FLOW DEVELOPING AND CONTINUING
THROUGH THE WEEKEND. AN UPPER LEVEL DISTURBANCE WILL BRING THE
CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE WEEKEND.
DML
PRELIMINARY POINT TEMPS/POPS
AEX 42 70 44 69 / 0 0 10 0
LCH 44 71 48 71 / 0 0 0 0
LFT 43 69 47 70 / 0 0 0 0
BPT 48 72 49 72 / 0 0 0 0
LCH WATCHES/WARNINGS/ADVISORIES
LA...NONE.
TX...NONE.
GM...SMALL CRAFT EXERCISE CAUTION UNTIL 7 PM CDT THIS EVENING FOR
GMZ470-472-475.
PUBLIC...08
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