Lake Winnebago Forecast

Lake Winnebago Forecast About these forecasts

Forecast Graphics

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.