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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Lake Winnebago Forecast                                       About these forecasts


Forecast Graphics


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Lake Winnebago Recreational Forecast
Note: Experimental product. Check product creation time to verify this is a current forecast.

388
SXUS43 KGRB 171358
RECGRB
WIZ048-WIZ049-172100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
858 AM CDT Thu Apr 17 2025

.TODAY...Southeast winds 15 to 20 knots. Slight chance of rain
showers in the afternoon. Waves 1 to 2 feet. Highs in the upper
50s.
.TONIGHT...South winds 10 to 15 knots with gusts to around
30 knots. Chance of thunderstorms through the night. Rain showers
likely after midnight. Waves 1 foot or less. Lows in the upper
40s.
.FRIDAY...South winds 5 to 10 knots veering west in the
afternoon. Chance of rain showers and slight chance of
thunderstorms in the morning, then chance of thunderstorms in the
afternoon. Waves 1 foot or less. Highs in the lower 60s.
.FRIDAY NIGHT...Northwest winds around 10 knots. Chance of
thunderstorms in the evening. Waves 1 foot or less. Lows around
40.

$$



 

Local Observations
Note: Check product creation time to verify this is a current product.
    
                        
070
ASUS43 KGRB 171759
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
100 PM CDT THU APR 17 2025

WIZ005-009-010>012-018-019-171900-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD SUNNY 62 32 32 SE12G20 29.68F
MANITOWISH WTR NOT AVBL
ARBOR VITAE NOT AVBL
EAGLE RIVER NOT AVBL
LAND O LAKES NOT AVBL
RHINELANDER SUNNY 59 30 33 S16G23 29.78F
PHILLIPS NOT AVBL
ANTIGO NOT AVBL
TOMAHAWK NOT AVBL
MERRILL NOT AVBL
$$

WIZ013-073-171900-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN SUNNY 57 26 30 SE16G25 29.85F
MARINETTE NOT AVBL
$$

WIZ017-030-035>037-045-171900-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD NOT AVBL
WAUSAU MOSUNNY 63 31 30 SE15G26 29.77F
MOSINEE MOSUNNY 63 36 36 SE14G21 29.77F
MARSHFIELD PTSUNNY 58 36 43 S16G30 29.76F
WISC RAPIDS PTSUNNY 63 31 30 S12G23 29.79F
STEVENS POINT NOT AVBL
WAUPACA NOT AVBL
SHAWANO NOT AVBL
CLINTONVILLE NOT AVBL
WAUTOMA MOSUNNY 65 36 34 S17G26 29.81F
$$

WIZ038-039-048-051-171900-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY MOSUNNY 61 36 39 S22G29 29.88F
APPLETON NOT AVBL
OSHKOSH PTSUNNY 66 36 32 S20G26 29.86F
FOND DU LAC MOSUNNY 65 37 35 S20G29 29.87F
$$

WIZ022-050-052-171900-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM NOT AVBL
WASHINGTON ISL NOT AVBL
STURGEON BAY NOT AVBL
MANITOWOC PTSUNNY 47 34 60 S28G35 29.94F
SHEBOYGAN CLOUDY 51 34 52 S25G35 29.95F
$$

LMZ563-521-522-541>543-171900-
LAKESHORE

STATION/POSITION TIME TEMP WIND PRES VSBY WAVE
AIR SEA DIR/SP/G HT/PER
(UTC) (F) (DEG/KT/KT) (MB) (MI) (FT/S)
SHEBOYGAN LKSHOR 1700 40 160/ 14/ 16 1015.2F
KEWAUNEE LKSHORE 1706 41 170/ 16/ 18 1013.8
NORTHPORT PIER 1700 100/ 10 N/A
CHAMBERS ISLAND 1740 50 110/ 7/ 17 N/A
MENOMINEE LKSHOR 1706 42 42 120/ 11/ 12 1013.2
$$



 

Additional Data
Note: Check data times to verify information is current.

Lake Winnebago Buoy
 
- INFOS WinnGB Project

Lake Winnebago Water Temperatures
 - Latest hourly reading
 - Last 21 days
 - Daily stream water temps -- See bottom of report; including Lk Winnebago

 

About these Forecasts

This forecast is available during the boating season, usually April through the end of October. The forecast, both graphical and text, is generated several times per day with updates made when weather conditions become unrepresentative. Use with caution. Be sure to check the product creation time to verify that the forecast you are viewing is current. Forecasts are valid for either 36 or 48 hours dependent on issuance time. Forecast elements include winds, significant wave heights, sensible weather, and associated restrictions to visibility if applicable over the open lake waters.

A wave model is run by NWS in Green Bay which produces the wave height forecast for Lake Winnebago. Forecasters at NWS Green Bay develop the wind forecast that is used in the wave model. The wave model has been used on the Great Lakes and has been shown to do reasonably well.

The latest observations for sites along the lake are also being provided. You may ask “Are these really the kind of winds you can expect on the open area of a lake or reservoir?” Any lake recreationalist will probably tell you that the winds are often found to be stronger than what was forecast or seen at the surrounding observation sites. Studies have shown that there is  approximately a 4 to 5 mph increase in sustained wind speeds on open bodies of water compared to the nearest airport. Keep in mind that this difference is over an open waterway and is not necessarily what one would find if they were boating in a protected pocket of the waterway or near a wind protected structure such as a tree line, an island or point.

Click here for more answers to some questions you may have regarding the Lake Winnebago Recreational Forecast.

We greatly value your input into ways to make the forecast and this website more useful. Please contact nws.greenbay@noaa.gov with any suggestions, comments or questions.