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Lake Winnebago Forecast                                       About these forecasts


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

000
SXUS43 KGRB 201341
RECGRB
WIZ048-WIZ049-202100-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
841 AM CDT Fri Jul 20 2018

.TODAY...East winds around 10 knots. Patchy fog early in the
morning. showers likely early in the morning. Scattered
thunderstorms through the day. Showers in the afternoon. Waves
1 to 3 feet. Near steady temperature in the lower 70s.
.TONIGHT...North winds around 10 knots. Showers likely in the
evening. Scattered thunderstorms through the night. Waves 1 to
3 feet. Lows in the mid 60s.
.SATURDAY...North winds 10 to 15 knots. Chance of showers in the
morning, then scattered thunderstorms in the afternoon. Waves
1 to 3 feet. Highs in the lower 70s.
.SATURDAY NIGHT...North winds 10 to 15 knots. Chance of showers.
Waves 1 to 3 feet. Lows in the lower 60s.

$$


 

Local Observations
Note: Check product creation time to verify this is a current product.

000
ASUS43 KGRB 201411
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
900 AM CDT FRI JUL 20 2018

WIZ005-009-010>012-018-019-201500-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD LGT RAIN 65 62 90 E5 29.82R
MANITOWISH WTR DRIZZLE 62 62 100 NE6 29.80R
ARBOR VITAE LGT RAIN 64 62 93 NE5 29.78S
EAGLE RIVER CLOUDY 64 63 98 NE8 29.77S
LAND O LAKES CLOUDY 64 62 94 NE6 29.81S
RHINELANDER LGT RAIN 66 64 93 NE9 29.75S FOG
PHILLIPS DRIZZLE 63 63 100 NE8 29.76S
ANTIGO DRIZZLE 64 64 100 E10G17 29.72S
TOMAHAWK RAIN 63 62 96 NE6 29.73S
MERRILL LGT RAIN 65 65 100 NE9 29.70F
$$

WIZ013-073-201500-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN PTSUNNY 69 63 81 E12G17 29.76F
MARINETTE CLOUDY 69 64 84 E12 29.73F
OCONTO CLOUDY 71 64 80 E18 29.69S
$$

WIZ017-030-035>037-045-201500-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD RAIN 64 62 94 N9G17 29.71S
WAUSAU RAIN 65 65 100 E14G21 29.66S FOG
MOSINEE RAIN 66 66 100 NE8 29.68R
MARSHFIELD LGT RAIN 65 65 100 N12 29.66S FOG
WISC RAPIDS LGT RAIN 68 65 90 N6 29.65R FOG
STEVENS POINT CLOUDY 67 67 100 NE7 29.65S
WAUPACA LGT RAIN 70 70 98 NE7 29.63S
SHAWANO CLOUDY 70 66 85 E9 29.67S
CLINTONVILLE CLOUDY 69 65 88 E6 29.66R
WAUTOMA LGT RAIN 70 68 93 E5 29.62R
$$

WIZ038-039-048-051-201500-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY CLOUDY 70 65 84 SE12G22 29.67S
APPLETON CLOUDY 70 70 100 E8 29.63S
OSHKOSH CLOUDY 71 68 90 SE9 29.63R
FOND DU LAC CLOUDY 71 67 87 SE7 29.63S
$$

WIZ022-050-052-201500-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM CLOUDY 65 63 91 E9 29.74R
WASHINGTON ISL PTSUNNY 69 62 77 E9 29.75S
STURGEON BAY CLOUDY 67 64 90 E10 29.72S
MANITOWOC CLOUDY 69 66 90 SE14G21 29.68R
SHEBOYGAN PTSUNNY 72 67 84 S12 29.66S
$$

LMZ563-521-522-541>543-201500-
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 1400 68 140/ 11/ 11 1003.8F
KEWAUNEE LKSHORE 1342 67 130/ 12/ 17 1005.0F
NORTHPORT PIER 1340 71 90/ 7/ 8 1007.5F
N MID LAKE BUOY 1350 69 68 100/ 14/ 17 1007.3F 2/ 4
S GREEN BAY BUOY 1400 74 73 120/ 16/ 19 1005.4
SISTER BAY LKSHO 1321 68 90/ 10/ 13 N/A
MENOMINEE LKSHOR 1348 70 100/ 16/ 19 1006.1F
$$


 

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

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 w-grb.webmaster@noaa.gov with any suggestions, comments or questions.