National Weather Service United States Department of Commerce

Summer Heat In Multiple Spots

A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. 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.

000
SXUS43 KGRB 191941
RECGRB
WIZ048-WIZ049-200900-

Recreational Forecast for Lake Winnebago
National Weather Service Green Bay WI
241 PM CDT Mon Aug 19 2019

.REST OF THE AFTERNOON...Southwest winds around 5 knots. Sunny.
Waves less than 1 foot. Near steady temperature in the mid 70s.
.TONIGHT...South winds up to 5 knots. Patchy fog after midnight.
Waves 1 foot or less. Lows in the upper 50s.
.TUESDAY...South winds up to 10 knots. Patchy fog in the morning.
slight chance of thunderstorms in the afternoon. Waves 1 foot or
less. Highs in the lower 80s.
.TUESDAY NIGHT...Southwest winds 5 to 10 knots veering northwest
after midnight. Partly cloudy. Waves 1 foot or less. Lows in the
upper 60s.
.WEDNESDAY...Northwest winds 5 to 10 knots. Mostly sunny. Waves
1 foot or less. Near steady temperature in the upper 60s.

$$


 

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

000
ASUS43 KGRB 192111
RWRGRB

NORTH-CENTRAL AND NORTHEAST WISCONSIN REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE GREEN BAY WI
400 PM CDT MON AUG 19 2019

WIZ005-009-010>012-018-019-192200-
NORTH CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRONWOOD FAIR 74 49 41 SW12 29.97F
MANITOWISH WTR FAIR 71 49 45 SW8 30.01S
ARBOR VITAE FAIR 74 53 46 W9G16 30.02R
EAGLE RIVER FAIR 73 49 42 W10 30.01S
LAND O LAKES NOT AVBL
RHINELANDER FAIR 72 50 45 SW8 30.03S
PHILLIPS FAIR 72 53 51 SW9 30.02S
ANTIGO FAIR 74 51 45 W8 30.03F
TOMAHAWK FAIR 73 50 43 CALM 30.03S
MERRILL FAIR 75 53 45 SW8 30.03S
$$

WIZ013-073-192200-
NORTHEAST WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
IRON MOUNTAIN FAIR 77 49 37 VRB7 29.98F
MARINETTE FAIR 76 54 46 S7 30.01F
OCONTO FAIR 78 51 39 W7 30.00F
$$

WIZ017-030-035>037-045-192200-
CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
MEDFORD FAIR 71 52 50 W7 30.03S
WAUSAU FAIR 75 51 43 SW9 30.01F
MOSINEE MOSUNNY 75 52 43 SW7 30.04S
MARSHFIELD FAIR 76 53 44 W10 30.02F
WISC RAPIDS FAIR 78 55 44 SW7 30.02F
STEVENS POINT FAIR 76 49 38 W12 30.03S
WAUPACA FAIR 82 49 32 SW7 30.02S
SHAWANO FAIR 79 52 39 W5 30.01S
CLINTONVILLE FAIR 79 49 34 SW9 30.01S
WAUTOMA FAIR 79 57 46 VRB6 30.02F
$$

WIZ038-039-048-051-192200-
FOX VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS
NWS GREEN BAY FAIR 78 52 40 SW5 30.02S
APPLETON SUNNY 77 43 29 SW7 30.01F
OSHKOSH FAIR 78 54 43 SW5 30.02S
FOND DU LAC FAIR 80 55 42 SW7 30.02F
$$

WIZ022-050-052-192200-
EAST CENTRAL WISCONSIN

CITY SKY/WX TMP DP RH WIND PRES REMARKS
EPHRAIM FAIR 73 51 46 SW6 30.01S
WASHINGTON ISL MOCLDY 73 51 46 S7 30.00F
STURGEON BAY PTSUNNY 75 60 59 SW6 30.02S
MANITOWOC FAIR 74 61 63 SE9 30.02S
SHEBOYGAN FAIR 77 60 55 S8 30.01F
$$

LMZ563-521-522-541>543-192200-
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 2100 70 150/ 8/ 9 1016.4F
KEWAUNEE LKSHORE 2030 67 160/ 9/ 10 1016.0R
NORTHPORT PIER 2040 72 130/ 5/ 8 1015.9S
N MID LAKE BUOY 2050 70 70 200/ 8/ 12 1016.7F 1/ 5
S GREEN BAY BUOY 2030 79 73 210/ 8/ 10 1016.4F
SISTER BAY LKSHO 2056 79 270/ 9/ 10 N/A
MENOMINEE LKSHOR 2030 74 68 190/ 9/ 12 1015.8F
$$


 

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.