Madison, WI Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Madison, WI

April 15, 2024 10:40 AM CDT (15:40 UTC) Change Location
Sunrise 6:12 AM   Sunset 7:42 PM
Moonrise 11:23 AM   Moonset 2:47 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

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Marine Forecasts
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LMZ644 Port Washington To North Point Light Wi- 905 Am Cdt Mon Apr 15 2024

Rest of today - North wind 5 to 10 knots veering east early in the afternoon, then rising to 10 to 15 knots late in the afternoon. Sunny. Waves around 1 foot.

Tonight - Northeast wind 5 to 10 knots rising to 10 to 15 knots early in the morning. Partly cloudy. Waves 1 to 2 feet.

Tuesday - East wind 10 to 20 knots becoming 15 to 20 knots with gusts to around 25 knots in the late morning and early afternoon, then becoming 15 to 25 knots with gusts to around 30 knots late in the afternoon. Rain showers likely and slight chance of Thunderstorms in the afternoon. Waves 3 to 4 feet building to 5 to 7 feet. A small craft advisory may be needed.

Tuesday night - East wind up to 30 knots with gusts to around 35 knots veering southeast with gusts to around 35 knots late in the evening, then becoming southeast up to 30 knots after midnight easing to 15 to 25 knots early in the morning. Rain showers and a chance of Thunderstorms. Waves 8 to 10 feet.

LMZ600
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7 Day Forecast for Marine Location Near Madison, WI
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Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 150949 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 449 AM CDT Mon Apr 15 2024

KEY MESSAGES

- Above normal temps and sunny skies continue today.

- Showers and storms will likely (60-85%) bring over an inch of rain Tuesday afternoon through Wednesday afternoon.

- There is a conditional severe threat for far south central WI Tuesday afternoon and evening.

SHORT TERM
Issued 447 AM CDT Mon Apr 15 2024

Today and Tonight:

High pressure overhead will allow for lighter northerly winds today. A lake breeze will develop this afternoon. High temperatures will be warm, but not as warm as yesterday, topping out in the lower 70s inland from Lake Michigan. With plenty of sunshine, there is a chance we could reach higher temps than forecast (again). We are in a very dry air mass which helps this.

Cronce

LONG TERM
Issued 447 AM CDT Mon Apr 15 2024

Tuesday through Sunday:

A closed low pressure system approaching from the Central Plains will bring a round of showers and thunderstorms to southern WI Tuesday afternoon through Wednesday afternoon. The arrival time of the precip is later than previous forecasts. The severe potential is very conditional late Tuesday afternoon and evening. The weakening low over Iowa will push the surface warm front into northern IL and maybe into a small area of south central/southwest WI. Wind shear will be very high along this front, so it will just be a matter if the instability can make it this far north to produce severe storms. With that much shear, it would not take much to produce organized, low-top storms. SPC has a sliver of our area in a Slight Risk for severe storms and this seems reasonable, but very conditional.

Total rainfall from Tuesday afternoon through Wednesday afternoon should be around an inch in southeast WI to around 1.5 inches near Wisconsin Dells. The MKX-WPC QPF Probs have a 60% chance of greater than 1 inch in Milwaukee and an 85% chance just west of Madison. There is not a lot of spread between the ensemble model total precip solutions, so that provides a littler higher confidence in our forecast amounts.

Winds may also be of concern Tuesday afternoon and night, but we took the tempered approach with wind speeds and gusts for now.
There are a few outlier model solutions that are driving the NBM on the high side. It will still be breezy, but easterly gusts should remain under 35 mph. Gusty west to northwest winds up to 30 mph are possible Wednesday afternoon and night as the weakening low exits to the east.

A broad upper low will slowly move across the western and central Canadian provinces Thursday through Friday. Showers are possible across southern WI as weak ripples in the flow track along a front that is well to our south. The chance for showers is decreasing. Thursday high should still be in the 60s, but colder air will start to seep into our area Friday night as that Canadian low exits the area. Temperatures will be at or below normal from Saturday through early next week.

Cronce

AVIATION
Issued 447 AM CDT Mon Apr 15 2024

VFR conditions will persist through tonight. Winds will be much lighter today. A lake breeze is expected this afternoon.

Cronce

MARINE
Issued 447 AM CDT Mon Apr 15 2024

Light northerly winds will become easterly this evening and increase through the night as low pressure of 29.2 inches approaches from the Central Plains. The low will reach central Lake Michigan Wednesday evening with a central pressure around 29.5 inches. There is uncertainty about quickly the low will weaken by the time it reaches Lake Michigan and shortly thereafter.

Stronger easterly winds are expected Tuesday afternoon and night, with the potential for gale force gusts up to 35 kt in the central and northern parts of the lake. Some models have higher winds so there is lower confidence in gales. We are holding off issuing a gale watch for now. Winds will become westerly with gusts up to 30 kt Wednesday night into Thursday behind the departing low.

Cronce

MKX WATCHES/WARNINGS/ADVISORIES
WI...None.
LM...None.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KMSN DANE COUNTY RGNLTRUAX FIELD,WI 6 sm47 minvar 0310 smPartly Cloudy61°F39°F45%30.01
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Wind History from MSN
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Tide / Current for
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