927
FNUS74 KLIX 111734
FWSLIX
SPOT FORECAST FOR GRAND ISLE 59 MARLIN SARDINIA *OFFSHORE*...NOAA
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1234 PM CDT WED MAR 11 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
WINDS WILL STRENGTHEN TO AROUND 15 KNOTS THIS AFTERNOON/EVENING
AHEAD OF A COLD FRONT. SMALL CRAFT ADVISORY CONDITIONS WILL QUICKLY
DEVELOP IN THE WAKE OF THE COLD FRONT TONIGHT AND WE COULD EVEN SEE
A PERIOD OF GALE CONDITIONS THURSDAY. SHOWERS AND THUNDERSTORMS WILL
ACCOMPANY THE FRONT AS IT MOVES THROUGH THE COASTAL WATERS THIS
EVENING INTO THE OVERNIGHT HOURS. THESE STORMS COULD ALSO BRING VERY
STRONG MARINE WINDS AND EVEN A FEW WATERSPOUTS.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........84 PERCENT.
MAX APPARENT TEMP...75.
SURFACE WINDS (KTS).SOUTH WINDS AROUND 11 KNOTS WITH GUSTS TO
AROUND 21 KNOTS.
TRANSPORT WINDS.....SOUTH 15 TO 18 MPH.
TRANSPORT WINDS M/S.SOUTH 7 TO 8 METERS/SECOND.
WAVE HEIGHT.........3 FEET.
WAVE PERIOD.........6 SECONDS.
CEILING (KFT).......3.5 INCREASING TO 25 EARLY IN THE AFTERNOON,
THEN DECREASING TO 4.5 LATE IN THE AFTERNOON
INCREASING TO 7.3 LATE IN THE AFTERNOON
INCREASING TO 11.
WIND (20 FT)........SOUTH WINDS AROUND 12 MPH WITH GUSTS TO AROUND
24 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON.
TIME (CDT) 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 41 38 36 42
WEATHER COV..... SCH SCH
WEATHER TYPE.... RW RW
TSTM COV........ SCH SCH
CHC OF PCPN (%).0 0 10 20 20
TEMP............74 74 75 74 74
RH..............87 90 84 87 90
APARNT TMP (F)..74 74 75 74 74
20 FT WIND DIR..S S S S S
20 FT WIND SPD..13 13 13 13 13
20 FT WIND GUST.23 23 24 24 24
SFC WND DIR.....S S S S S
SFC WND SPD KTS.11 11 11 11 11
SFC WND GST.....23 23 24 24 24
TRANSP WIND DIR.S S S S S
TRANSP WIND SPD.17 17 15 17 18
TRANS WIND DIR..S S S S S
TRANS SPD (M/S).8 8 7 8 8
WAVE PERIOD (S).6 6 6 6 6
WAVE HEIGHT (FT)3 3 3 3 3
CEILING (KFT)...3.5 25 4.5 7.3 11
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
SHOWERS IN THE EVENING. CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. SHOWERS OVERNIGHT. PATCHY
FOG OVERNIGHT.
CHANCE OF PCPN......90 PERCENT.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........90 PERCENT.
MAX APPARENT TEMP...74.
SURFACE WINDS (KTS).BREEZY. SOUTHWEST WINDS 12 TO 19 KNOTS SHIFTING
TO THE WEST 22 TO 25 KNOTS OVERNIGHT, THEN
SHIFTING TO THE AROUND 25 KNOTS EARLY IN THE
MORNING.
TRANSPORT WINDS.....SOUTH 18 TO 25 MPH SHIFTING TO THE SOUTHWEST 28
TO 29 MPH OVERNIGHT, THEN SHIFTING TO THE WEST
28 TO 31 MPH AFTER 3 AM.
TRANSPORT WINDS M/S.SOUTH AROUND 8 METERS/SECOND INCREASING TO 9 TO
13 METERS/SECOND IN THE EVENING AND OVERNIGHT,
THEN SHIFTING TO THE WEST AROUND 13
METERS/SECOND OVERNIGHT SHIFTING TO THE
NORTHWEST AROUND 14 METERS/SECOND EARLY IN THE
MORNING.
WAVE HEIGHT.........6 FEET.
WAVE PERIOD.........6 SECONDS.
CEILING (KFT).......9.5 INCREASING TO 10 IN THE EVENING, THEN
DECREASING TO 7.3 LATE IN THE EVENING
DECREASING TO 2.7 OVERNIGHT INCREASING TO 3.5
DECREASING TO 2.7 AFTER 3 AM DECREASING TO 2.2.
WIND (20 FT)........BREEZY. SOUTH WINDS 13 TO 20 MPH SHIFTING TO
THE SOUTHWEST 23 TO 26 MPH OVERNIGHT, THEN
SHIFTING TO THE WEST AROUND 26 MPH EARLY IN THE
MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS EARLY IN THE EVENING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN
THE LATE EVENING AND 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 (%).........65 72 69 71 71 80 75 84 70 78 65 71
WEATHER COV.....SCH SCH SCH CHC CHC CHC DEF DEF LKY CHC SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC SCH SCH
CHC OF PCPN (%).20 20 20 30 40 50 80 90 60 40 20 20
TEMP............74 74 73 74 73 73 73 73 72 71 70 68
RH..............90 87 90 87 90 90 90 87 90 87 87 87
APARNT TMP (F)..74 74 73 74 73 73 73 73 72 71 70 68
20 FT WIND DIR..S S S S S SSW SSW SW SW WSW W W
20 FT WIND SPD..14 17 18 20 21 21 22 25 26 28 29 29
20 FT WIND GUST.24 18 22 22 22 30 31 31 31 32 33
SFC WND DIR.....S S S S S SSW SSW SW SW WSW W W
SFC WND SPD KTS.12 15 16 17 18 18 19 22 23 24 25 25
SFC WND GST.....24 18 22 22 22 30 31 31 31 32 33
TRANSP WIND DIR.S S S S S SSW SSW SW WSW W WNW NW
TRANSP WIND SPD.18 20 21 23 24 25 28 29 28 28 29 31
TRANS WIND DIR..S S S S S SSW SSW SW WSW W WNW NW
TRANS SPD (M/S).8 9 9 10 11 11 13 13 13 13 13 14
WAVE PERIOD (S).6 6 6 6 6 6 6 5 5 6 6 6
WAVE HEIGHT (FT)4 4 4 4 4 4 5 5 5 6 6 6
CEILING (KFT)...9.5 11 11 10 10 7.3 2.7 2.7 3.5 3.5 2.7 2.2
THURSDAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT) THEN BECOMING
SUNNY (5-15 PERCENT). SLIGHT CHANCE OF SHOWERS
EARLY IN THE MORNING.
CHANCE OF PCPN......20 PERCENT.
MAX TEMPERATURE.....AROUND 68.
MIN HUMIDITY........54 PERCENT.
MAX APPARENT TEMP...66.
SURFACE WINDS (KTS).WINDY. NORTH WINDS 25 TO 30 KNOTS DECREASING TO
23 TO 29 KNOTS IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 31 TO 38 MPH SHIFTING TO THE NORTHEAST 26
TO 28 MPH LATE IN THE AFTERNOON.
TRANSPORT WINDS M/S.NORTH 12 TO 16 METERS/SECOND SHIFTING TO THE
NORTHEAST 12 TO 13 METERS/SECOND LATE IN THE
AFTERNOON.
WAVE HEIGHT.........8 FEET.
WAVE PERIOD.........6 SECONDS.
CEILING (KFT).......1.8 DECREASING TO 1.3 EARLY IN THE AFTERNOON,
THEN INCREASING TO 2.2 LATE IN THE AFTERNOON
INCREASING TO 25 LATE IN THE AFTERNOON.
WIND (20 FT)........WINDY. NORTH WINDS 26 TO 31 MPH DECREASING TO
24 TO 30 MPH IN THE AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........87 78 74 51 55 56 50 45 41 30 8 7
WEATHER COV..... SCH SCH
WEATHER TYPE.... RW RW
TSTM COV........
CHC OF PCPN (%).10 20 20 10 0 0 0 0 0 0 0 0
TEMP............65 64 62 60 62 61 61 63 63 64 66 65
RH..............93 90 87 87 75 78 75 67 65 60 54 54
APARNT TMP (F)..65 64 62 60 62 61 61 63 63 64 66 65
20 FT WIND DIR..NW NNW NNW NNW N N N N N N N N
20 FT WIND SPD..29 32 35 35 35 32 32 33 32 31 28 26
20 FT WIND GUST.35 36 38 38 38 37 37 36 35 33 33 32
SFC WND DIR.....NW NNW NNW NNW N N N N N N N N
SFC WND SPD KTS.25 28 30 30 30 28 28 29 28 27 24 23
SFC WND GST.....35 36 38 38 38 37 37 36 35 33 33 32
TRANSP WIND DIR.NNW N N N N N N NNE NNE NNE NNE NNE
TRANSP WIND SPD.31 35 35 37 38 35 35 33 32 31 28 26
TRANS WIND DIR..NNW N N N N N N NNE NNE NNE NNE NNE
TRANS SPD (M/S).14 16 16 17 17 16 16 15 14 14 13 12
WAVE PERIOD (S).6 6 6 6 6 6 6 6 6 6 6 6
WAVE HEIGHT (FT)7 7 7 8 8 8 8 8 8 8 8 8
CEILING (KFT)...1.8 1.8 1.8 2.2 2.2 2.2 1.3 1.3 1.5 2.2 25 25
FORECAST DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 60S.
NORTHEAST WINDS AROUND 13 MPH.
SATURDAY
PARTLY CLOUDY. LOWS IN THE MID 60S. HIGHS IN THE LOWER 70S. EAST
WINDS AROUND 5 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 60S. HIGHS IN THE MID 70S. SOUTH
WINDS AROUND 8 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE
LOWER 60S. HIGHS IN THE UPPER 60S. NORTH WINDS 20 TO 30 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER 60S.
NORTHEAST WINDS 20 TO 25 MPH.
OUTLOOK FOR WEDNESDAY MARCH 18 THROUGH TUESDAY MARCH 24
WINDS WILL WEAKEN BY WEDNESDAY MORNING. THERE IS SIGNIFICANT
UNCERTAINTY IN THE DIRECTION, THOUGH, DURING THE FIRST PART OF
THIS PERIOD. WINDS WILL LIKELY BECOME ONSHORE AGAIN BY MARCH 21ST
AND COULD BECOME ONSHORE AS EARLY AS THE 18TH.
FORECASTER...NWS NEW ORLEANS
REQUESTED BY...BRANDI TODD
TYPE OF REQUEST...HAZMAT
.TAG 2604973.6/LIX
.DELDT 03/11/26
.FORMATTERVERSION 2.0.0
.EMAIL RDCAUTERIEVE@LOOPLLC.COM,BRANDI.TODD@NOAA.GOV,DEMASKEY@CLEANGULFASSOC.COM,ELYONS@AMPOL.NET,TCSHAW@LOOPLLC.COM,SR-LIX.FORECASTERS@NOAA.GOV,NWCOPELAND@LOOPLLC.COM,PETER.LEBEL@NOAA.GOV
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