462
FNUS74 KLIX 151733
FWSLIX
SPOT FORECAST FOR GRAND ISLE BLOCK 59 RELEASE INLAND...NOAA
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1233 PM CDT SUN MAR 15 2026
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
WE CAN BE REACHED AT (985) 649-0357 IF YOU HAVE QUESTIONS OR CONCERNS
WITH THIS FORECAST.
DISCUSSION
THE DEEPENING LOW PRESSURE TO THE NORTH OF THE REGION WILL DRIVE
WINDS TO INCREASE TO 15 TO 20 KNOTS BY THE AFTERNOON HOURS OVER THE
WATERS. SUNDAY NIGHT INTO EARLY MONDAY WILL SEE A STRONG COLD FRONT
PASS THROUGH THE WATERS. AS THE FRONT PASSES, WINDS WILL QUICKLY
SHIFT TO THE NORTHWEST AND INCREASE TO 30 TO 35 KNOTS WITH HIGHER
GUSTS. THESE GALE CONDITIONS WILL PUSH SEAS OVER 12 FEET IN THE OPEN
GULF WATERS CREATING VERY HAZARDOUS BOATING CONDITIONS. THE GALE
CONDITIONS WILL SLIGHTLY IMPROVE INTO SMALL CRAFT ADVISORY
CONDITIONS MONDAY NIGHT, AND FURTHER EASING OF THE WINDS WILL OCCUR
ON TUESDAY AS ANOTHER HIGH PRESSURE SYSTEM BECOMES MORE CENTERED
OVER THE WATERS. AS THE HIGH BECOMES CENTERED OVER THE WATERS ON
WEDNESDAY, WINDS WILL TURN MORE EASTERLY AND FALL TO 10 KNOTS OR
LESS. SEAS WILL ALSO DECREASE BACK TO 3 FEET OR LESS BY WEDNESDAY
MORNING. THESE MORE BENIGN CONDITIONS WILL LINGER THROUGH THE END OF
THE WEEK AS THE HIGH PRESSURE SYSTEM REMAINS IN PLACE OVER THE
WATERS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 73.
MIN HUMIDITY........87 PERCENT.
MAX APPARENT TEMP...73.
SURFACE WINDS (KTS).SOUTH WINDS AROUND 15 KNOTS.
TRANSPORT WINDS.....SOUTH 20 TO 21 MPH.
TRANSPORT WINDS M/S.SOUTH AROUND 9 METERS/SECOND.
WAVE HEIGHT.........1 FOOT.
WAVE PERIOD.........2 SECONDS.
CEILING (KFT).......25.
WIND (20 FT)........SOUTH WINDS AROUND 16 MPH.
TIME (CDT) 1PM 2PM 3PM 4PM 5PM
SKY (%).........33 44 28 36 36
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0
TEMP............72 72 73 73 73
RH..............87 90 87 87 87
APARNT TMP (F)..72 72 73 73 73
20 FT WIND DIR..S S S S S
20 FT WIND SPD..17 17 17 17 17
20 FT WIND GUST.22 22 22 21 22
SFC WND DIR.....S S S S S
SFC WND SPD KTS.15 15 15 15 15
SFC WND GST.....22 22 22 21 22
TRANSP WIND DIR.S S S S S
TRANSP WIND SPD.20 20 21 20 20
TRANS WIND DIR..S S S S S
TRANS SPD (M/S).9 9 9 9 9
WAVE PERIOD (S).2 2 2 2 2
WAVE HEIGHT (FT)1 1 1 1 1
CEILING (KFT)...25 25 25 25 25
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
SHOWERS WITH THUNDERSTORMS LIKELY OVERNIGHT.
CHANCE OF PCPN......90 PERCENT.
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........93 PERCENT.
MAX APPARENT TEMP...73.
SURFACE WINDS (KTS).WINDY. SOUTHWEST WINDS 15 TO 18 KNOTS SHIFTING
TO THE NORTH 21 TO 25 KNOTS OVERNIGHT, THEN
SHIFTING TO THE 27 TO 29 KNOTS AFTER 3 AM.
TRANSPORT WINDS.....SOUTHWEST 20 TO 22 MPH SHIFTING TO THE
NORTHWEST 24 TO 30 MPH OVERNIGHT, THEN SHIFTING
TO THE NORTH 33 TO 35 MPH AFTER 3 AM.
TRANSPORT WINDS M/S.SOUTH AROUND 9 METERS/SECOND SHIFTING TO THE
SOUTHWEST 9 TO 10 METERS/SECOND IN THE EVENING
AND OVERNIGHT, THEN SHIFTING TO THE NORTHWEST
11 TO 13 METERS/SECOND OVERNIGHT SHIFTING TO
THE NORTH 15 TO 16 METERS/SECOND AFTER 3 AM.
WAVE HEIGHT.........1 FOOT.
WAVE PERIOD.........2 SECONDS.
CEILING (KFT).......4.5 DECREASING TO 3.5 EARLY IN THE EVENING,
THEN DECREASING TO 2.7 EARLY IN THE EVENING
INCREASING TO 11 LATE IN THE EVENING DECREASING
TO 2.7 DECREASING TO 2.2 LATE IN THE EVENING
INCREASING TO 3.5 INCREASING TO 4.5 OVERNIGHT
DECREASING TO 3.5.
WIND (20 FT)........WINDY. SOUTHWEST WINDS 16 TO 18 MPH SHIFTING TO
THE NORTHWEST 22 TO 26 MPH OVERNIGHT, THEN
SHIFTING TO THE NORTH 29 TO 30 MPH AFTER 3 AM.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE EVENING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
OVERNIGHT, THEN GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS AFTER 3 AM.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........64 56 63 72 78 85 74 81 87 88 80 72
WEATHER COV..... SCH CHC CHC CHC DEF DEF LKY CHC SCH
WEATHER TYPE.... RW RW RW RW RW RW RW RW RW
TSTM COV........ SCH CHC CHC CHC LKY LKY LKY CHC SCH
CHC OF PCPN (%).0 0 10 20 40 50 50 80 90 60 40 20
TEMP............73 72 73 72 73 72 72 72 70 66 62 60
RH..............90 90 90 93 90 93 93 90 90 90 81 81
APARNT TMP (F)..73 72 73 72 73 72 72 72 70 66 62 60
20 FT WIND DIR..S S S SSW SSW SW SW WSW WNW NNW N N
20 FT WIND SPD..17 17 17 18 20 20 21 21 24 29 31 33
20 FT WIND GUST.23 23 23 24 24 24 25 25 28 31 35 37
SFC WND DIR.....S S S SSW SSW SW SW WSW WNW NNW N N
SFC WND SPD KTS.15 15 15 16 17 17 18 18 21 25 27 29
SFC WND GST.....23 23 23 24 24 24 25 25 28 31 35 37
TRANSP WIND DIR.S S SSW SSW SW SW SW WSW WNW NNW N N
TRANSP WIND SPD.20 21 22 22 22 21 21 22 24 30 35 33
TRANS WIND DIR..S S SSW SSW SW SW SW WSW WNW NNW N N
TRANS SPD (M/S).9 9 10 10 10 9 9 10 11 13 16 15
WAVE PERIOD (S).2 2 2 2 2 2 2 2 2 2 2 2
WAVE HEIGHT (FT)1 1 1 1 1 1 1 1 1 1 1 1
CEILING (KFT)...4.5 3.5 2.7 11 2.7 2.2 3.5 4.5 3.5 3.5 3.5 3.5
MONDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) THEN BECOMING
MOSTLY SUNNY (30-40 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........47 PERCENT.
MAX APPARENT TEMP...57.
SURFACE WINDS (KTS).WINDY. NORTH WINDS 23 TO 31 KNOTS.
TRANSPORT WINDS.....NORTH 28 TO 37 MPH.
TRANSPORT WINDS M/S.NORTH 13 TO 17 METERS/SECOND.
WAVE HEIGHT.........1 FOOT.
WAVE PERIOD.........2 SECONDS.
CEILING (KFT).......2.7 INCREASING TO 25.
WIND (20 FT)........WINDY. NORTH WINDS 24 TO 32 MPH. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY
IN THE MORNING.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 88 77 72 50 39 37 29 25 22 22 24
WEATHER COV.....SCH
WEATHER TYPE....RW
TSTM COV........SCH
CHC OF PCPN (%).20 10 0 0 0 0 10 0 0 0 0 0
TEMP............57 54 53 52 51 51 52 53 54 56 55 55
RH..............77 74 71 69 66 63 59 54 52 47 47 47
APARNT TMP (F)..57 54 53 52 51 51 52 53 54 56 55 55
20 FT WIND DIR..N N N NNW NNW NNW NNW NNW NNW NNW NNW NNW
20 FT WIND SPD..36 36 35 35 31 30 28 26 26 28 26 26
20 FT WIND GUST.39 40 38 38 36 35 32 31 31 31 30 30
SFC WND DIR.....N N N NNW NNW NNW NNW NNW NNW NNW NNW NNW
SFC WND SPD KTS.31 31 30 30 27 26 24 23 23 24 23 23
SFC WND GST.....39 40 38 38 36 35 32 31 31 31 30 30
TRANSP WIND DIR.N N N N N N NNW NNW NNW NNW NNW NNW
TRANSP WIND SPD.37 36 37 35 33 32 30 30 30 29 29 28
TRANS WIND DIR..N N N N N N NNW NNW NNW NNW NNW NNW
TRANS SPD (M/S).17 16 17 16 15 14 13 13 13 13 13 13
WAVE PERIOD (S).2 2 2 2 2 2 2 2 2 2 2 2
WAVE HEIGHT (FT)1 1 1 1 1 1 1 1 1 1 1 1
CEILING (KFT)...2.7 2.7 3.5 4.5 5.8 7.3 25 25 25 25 25 25
FORECAST DAYS 3 THROUGH 7
TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID 50S. NORTH
WINDS AROUND 19 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 60S.
NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 6 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS AROUND 70.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 60S. HIGHS IN THE LOWER 70S.
FORECASTER...LISNEY
REQUESTED BY...BRANDI TODD
TYPE OF REQUEST...HAZMAT
.TAG 2605758.3/LIX
.DELDT 03/15/26
.FORMATTERVERSION 2.0.0
.EMAIL BRANDI.TODD@NOAA.GOV,RDCAUTERIEVE@LOOPLLC.COM,SR-LIX.FORECASTERS@NOAA.GOV,DEMASKEY@CLEANGULFASSOC.COM,TCSHAW@LOOPLLC.COM,NWCOPELAND@LOOPLLC.COM,ELYONS@AMPOL.NET,PETER.LEBEL@NOAA.GOV
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