090
FNUS74 KLIX 211707
FWSLIX

Spot Forecast for STA Venice - TS BERTHA...USCG
National Weather Service New Orleans LA
1207 PM CDT Tue Jul 21 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.

...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.DISCUSSION...

Tropical Storm Bertha will meander northwest over the northeast Gulf
for the next day or so. It is forecast to move westward along or
just offshore the northern Gulf Coast through Thursday. As the
system moves over our local waters, expect winds and seas to
increase with tropical storm conditions likely for Plaquemines
Parish and possible for most if not all the local waters. The
system will move west of the region later Thursday and conditions
should improve going into the upcoming weekend.


.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent). Slight chance of
                    showers and thunderstorms early in the
                    afternoon. Chance of showers and thunderstorms
                    late in the afternoon.
Chance of pcpn......30 percent.
Surface winds (kts).Northwest winds 7 to 17 knots.
Transport winds.....North 16 to 17 mph.
Transport winds m/s.North 7 to 8 meters/second.
Wave height.........5 feet.
Wave period.........8 SECONDS.
Wind (20 ft)........Northwest winds 6 to 15 knots. Gusty and
                    erratic winds expected near thunderstorms in
                    the afternoon.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........16  30  37  30  34  42
Weather cov.....    SCH SCH SCH CHC CHC
Weather type....    RW  RW  RW  RW  RW
Tstm cov........    SCH SCH SCH CHC CHC
Chc of pcpn (%).10  10  10  20  30  30
20 FT wind dir..NNW NNW NNW NNW NW  NW
20 FT wind spd..16  16  16  15  16  17
20 FT wind gust.20  20  19  19  19  20
SFC wnd dir.....NNW NNW NNW NNW NW  NW
SFC wnd spd kts.16  16  16  15  16  17
SFC wnd gst.....20  20  19  19  19  20
Transp wind dir.N   NNW NNW NNW NNW NNW
Transp wind spd.17  17  17  16  16  17
Trans wind dir..N   NNW NNW NNW NNW NNW
Trans spd (m/s).8   8   8   7   7   8
Wave period (s).8   7   7   7   8   8
Wave height (ft)5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly cloudy (55-65 percent). Showers likely
                    and chance of thunderstorms.
Chance of pcpn......70 percent.
Surface winds (kts).Breezy. Northwest winds up to 24 knots.
Transport winds.....North 18 to 26 mph shifting to the northwest
                    around 28 mph early in the morning.
Transport winds m/s.North 8 to 12 meters/second shifting to the
                    northwest early in the morning.
Wave height.........7 feet.
Wave period.........8 SECONDS.
Wind (20 ft)........Breezy. Northwest winds 4 to 22 knots. Gusty
                    and erratic winds expected near thunderstorms.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........50  52  56  59  51  56  64  68  61  63  69  62
Weather cov.....CHC LKY LKY CHC LKY LKY LKY CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Chc of pcpn (%).40  70  70  60  60  60  60  40  40  50  50  50
20 FT wind dir..NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW
20 FT wind spd..18  19  20  20  20  20  20  20  20  20  21  24
20 FT wind gust.22  23  23  24  24  24  24  24  25  25  25  28
SFC wnd dir.....NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW
SFC wnd spd kts.18  19  20  20  20  20  20  20  20  20  21  24
SFC wnd gst.....22  23  23  24  24  24  24  24  25  25  25  28
Transp wind dir.NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW
Transp wind spd.18  18  20  20  20  21  22  22  23  24  26  28
Trans wind dir..NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW NNW
Trans spd (m/s).8   8   9   9   9   9   10  10  10  11  12  13
Wave period (s).8   7   7   8   8   8   8   8   8   8   8   8
Wave height (ft)5   5   5   6   6   6   6   6   6   7   7   7

.WEDNESDAY...

Sky/weather.........Mostly cloudy (65-75 percent). Thunderstorms
                    likely in the morning. Showers through the day.
                    Thunderstorms in the afternoon.
Chance of pcpn......80 percent.
Surface winds (kts).Very windy. Northwest winds 8 to 39 knots with
                    gusts to around 50 knots increasing to west up
                    to 44 knots late in the afternoon.
Transport winds.....Northwest 28 to 36 mph shifting to the south 37
                    to 38 mph late in the afternoon.
Transport winds m/s.Northwest around 13 meters/second increasing to
                    13 to 16 meters/second in the morning and early
                    afternoon, then shifting to the south around 17
                    meters/second late in the afternoon.
Wave height.........11 feet building to 13 feet late in the
                    afternoon.
Wave period.........9 SECONDS.
Wind (20 ft)........Very windy. Northwest gales to 35 knots with
                    gusts to around 50 knots increasing to gales to
                    40 knots late in the afternoon. Gusty and
                    erratic winds expected near thunderstorms early
                    in the morning. Gusty and erratic winds
                    expected near thunderstorms in the late morning
                    and early afternoon, then gusty and erratic
                    winds expected near thunderstorms early in the
                    afternoon. Gusty and erratic winds expected
                    near thunderstorms late in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........62  59  63  61  64  73  79  82  80  79  85  84
Weather cov.....CHC LKY CHC LKY DEF DEF LKY LKY DEF DEF DEF DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC CHC LKY LKY LKY LKY DEF DEF LKY DEF
Chc of pcpn (%).60  60  50  60  80  70  70  60  80  80  80  80
20 FT wind dir..NNW NNW NNW NNW NW  NNW NNW NW  NW  NW  WNW W
20 FT wind spd..30  30  30  30  30  33  36  39  42  43  44  44
20 FT wind gust.        36  41  45  46  48  50  50  50  51  51
SFC wnd dir.....NNW NNW NNW NNW NW  NNW NNW NW  NW  NW  WNW W
SFC wnd spd kts.30  30  30  30  30  33  36  39  42  43  44  44
SFC wnd gst.....        36  41  45  46  48  50  50  50  51  51
Transp wind dir.NNW NNW NNW NNW NW  NNW NNW NW  SSE S   SSW S
Transp wind spd.28  29  30  30  32  33  35  36  37  38  38  38
Trans wind dir..NNW NNW NNW NNW NW  NNW NNW NW  SSE S   SSW S
Trans spd (m/s).13  13  13  13  14  15  16  16  17  17  17  17
Wave period (s).8   8   8   8   8   7   7   8   8   8   8   9
Wave height (ft)8   8   8   9   9   9   11  11  11  13  13  13

$$
Forecaster...STANFIELD
Requested by...LTJG Austin Wohlert
Type of request...MARINE
.TAG 2617877.0/LIX
.DELDT 07/21/26
.FormatterVersion 2.0.0
.EMAIL Austin.t.wohlert@uscg.mil