632
FNUS73 KMKX 121334
FWSMKX

Spot Forecast for WSCNMS AUV...NOAA
National Weather Service Milwaukee/Sullivan WI
834 AM CDT Tue Aug 12 2025

Forecast is based on forecast start time of 0856 CDT on August 12.

Please contact the National Weather Service if conditions become
unrepresentative or if you have questions/concerns about this forecast.

.DISCUSSION...


Rain and thunderstorms chances (60-80%) will continue this morning until
roughly 10 AM to noon. Rain and storms chances then decrease to 10-15%
through the afternoon. During the afternoon, rain and storms are expected
to be isolated in coverage. Chances for storms increase again (20-40%) as
a cold front moves through in the evening roughly 6-10 PM. Scattered to
isolated rain/storms are expected along the front. Dry conditions and
slightly cooler temperatures are expected Wednesday and Thursday.

Winds will be south southwest today across Lake Michigan until roughly
5-7 PM when they are expected to turn and become westerly. Winds will
continue to back overnight and be northwesterly. Northwest winds will
continue Wednesday morning and will then shift to northeasterly by
Wednesday afternoon. Sustained winds and gusts will be light with
5-10 MPH (5-9 kt) with gusts 15-20 MPH (11-15 kt) today and Wednesday.

Wave heights will be around 0.5 to 1 ft today through Wednesday. Wave
direction will be predominately south to south southeast through this
evening. Wave direction will begin to shift to westerly then northwesterly
overnight into Wednesday morning. Wave period will remain around 2 to 3 secs
through Wednesday.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (40-50 percent). Showers early in
                    the morning. Chance of thunderstorms through
                    the day. Chance of showers in the afternoon.
Chance of pcpn......80 percent.
Temperature.........76 at forecast start...Max 80.
Surface winds (kts).South winds 7 to 10 knots.
Wave height.........1 foot.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........65  78  82  80  83  83  79  73  59  47
Weather cov.....DEF DEF LKY CHC CHC CHC SCH SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH CHC CHC CHC SCH SCH SCH SCH
Chc of pcpn (%).80  80  60  30  30  30  20  20  20  20
Temp............75  76  76  76  77  78  77  78  78  77
SFC wnd dir.....SW  SW  S   SW  S   S   S   S   S   S
SFC wnd spd kts.7   9   10  10  10  10  10  10  9   9
SFC wnd gst.....15  10  12  14  15  16  14  12  13  13
Wave height (ft)1   1   1   1   1   1   1   1   1   1

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    mostly clear (15-25 percent). Slight chance of
                    showers and thunderstorms early in the evening,
                    then chance of showers late in the evening.
                    Slight chance of showers late in the evening.
Chance of pcpn......30 percent.
Temperature.........Min 73.
Surface winds (kts).West winds 7 to 9 knots shifting to the
                    northwest around 11 knots early in the morning.
Wave height.........1 foot.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........47  50  49  33  37  43  55  27  21  17  11  14
Weather cov.....SCH SCH SCH SCH CHC SCH
Weather type....RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH
Chc of pcpn (%).20  20  20  20  30  20  10  10  0   0   0   0
Temp............77  77  76  77  76  76  75  75  75  74  74  74
SFC wnd dir.....SW  SW  SW  SW  SW  W   W   W   NW  NW  NW  NW
SFC wnd spd kts.9   8   8   8   7   8   8   8   8   9   10  11
SFC wnd gst.....11  10  11  11  11  12  12  12  13  13  14  14
Wave height (ft)1   1   1   1   1   1   1   1   1   1   1   1

.WEDNESDAY...

Sky/weather.........Sunny (5-15 percent).
Chance of pcpn......0 percent.
Temperature.........Max 78.
Surface winds (kts).North winds 7 to 12 knots shifting to the
                    northeast late in the afternoon.
Wave height.........2 feet.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........19  18  14  15  18  3   6   8   6   5   3   3
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............73  76  76  76  76  76  76  76  76  77  77  77
SFC wnd dir.....NW  N   N   N   N   N   N   N   N   N   NE  NE
SFC wnd spd kts.11  12  11  11  10  9   8   7   7   7   7   7
SFC wnd gst.....13  14  13  13  12  11  10  9   8           8
Wave height (ft)1   2   2   2   2   1   1   1   1   1   1   1

$$
Forecaster...Patterson
Requested by...LT Dale Gump, NOAA
Type of request...MARINE
.TAG 2519656.2/MKX
.DELDT 08/12/25
.FormatterVersion 2.0.0
.EMAIL dale.gump@noaa.gov