Friday, September17, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Manitowoc, WI

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:31AMSunset 6:58PM Friday September 17, 2021 8:06 AM CDT (13:06 UTC) Moonrise 5:54PMMoonset 2:21AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 days in cycle
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.
Marine Forecasts
    EDIT      (on/off)   Help
LMZ543 Expires:202109171615;;753541 Fzus53 Kgrb 170805 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 305 Am Cdt Fri Sep 17 2021 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz542-543-171615- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 305 Am Cdt Fri Sep 17 2021
Early this morning..SW wind 10 to 15 kts. Waves 2 to 4 ft. Clear.
Today..SW wind 10 to 15 kts veering nw early in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon. A chance of showers and Thunderstorms in the afternoon.
Tonight..N wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear.
Saturday..NE wind 5 to 10 kts veering E in the late morning and afternoon. Waves 1 to 3 ft. Sunny.
Saturday night..SE wind 10 to 15 kts. Waves 2 ft or less. Clear.
LMZ543


7 Day Forecast for Marine Location Near Manitowoc, WI
   Hourly   EDIT   Help
location: 44.09, -87.65     debug


Area Discussion for - Green Bay, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KGRB 171100 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 600 AM CDT Fri Sep 17 2021

Updated aviation portion for 12Z TAF issuance

SHORT TERM. Today . Tonight . and Saturday Issued at 245 AM CDT Fri Sep 17 2021

A cold front will track through the region today, which will bring a swath of showers and thunderstorms through Wisconsin. Despite a fairly healthy looking area of showers and thunderstorms upstream across Minnesota, the CAMs models are fairly meager with the amount of this activity that will make it through the region. There is some concern as the main dynamics associated with this system, a fairly potent mid level PV anomaly evident in water vapor imagery, is forecast to lift northeast towards the Michigan UP instead of plowing through Wisconsin taking the upper level jet energy with it. Therefore, early this morning the best chance for showers and thunderstorms will initially be across north-central Wisconsin where the dynamics will reside before lifting northeast. Later this afternoon there could be an uptick across eastern Wisconsin as the cold front moves through during peak heating. The thunderstorms that track through northeast Wisconsin are not expected to be severe with the main dynamics lifting northeast with paltry MUCAPE values of a few hundred J/kg. Highs today are expected to range from the upper 60s across north- central Wisconsin, with highs in the upper 70s across east-central Wisconsin.

Skies will clear out behind the front tonight, as a cool and dry airmass settles in across northeast Wisconsin with a high pressure system over northern Wisconsin. Light winds, clear skies, and dry air will allow for perfect radiating conditions during the overnight hours. This will allow temperatures to plummet to 35 to 40 across north- central Wisconsin, with lows around 50 in east- central Wisconsin and the lakeshore. These cool temperatures could lead to some patchy frost in the cool spots across north-central Wisconsin for a brief period tonight.

The high will drift east during the day on Saturday, as surface winds become south to southeasterly on the back side of the high. Mostly sunny skies and low dew points will make for a pleasant day across the region, as highs range from the upper 60s across north- central Wisconsin to the lower 70s across central and east- central Wisconsin.

LONG TERM. Saturday Night Through Thursday Issued at 245 AM CDT Fri Sep 17 2021

Forecast highlights include above normal temperatures on Sunday into Monday, followed by rain chances on Monday night/Tuesday, and a cool down for the middle of next week. Therefore, the focus in this part of the forecast is mainly temperatures and rain chances on Tuesday.

Saturday night through Sunday night . High pressure will be initially centered across the central Great Lakes on Saturday evening. But this high will depart later Saturday night into Sunday as a cold front moves across the northern Plains. With the high overhead, clear skies and light winds are expected on Saturday night, and went below guidance for temps. Southerly winds kick in on Sunday on the western side of the surface high, which should serve to bring in well above normal temps. Highs in the 80s look likely at most locations over central WI and the Fox Valley. Lows on Sunday night will remain mild with breezy conditions.

Rest of the forecast . The front will remain draped across the northern Plains on Monday as it awaits for a deeper trough to give it a forward push to the east. Meanwhile, a plume of rich, Gulf moisture is forecast to shift north into the area Monday afternoon, which will lead to an increase of clouds and possibly a shower or two. Forecast soundings do not show deep saturation so details could change. The chance of showers and storms will increase on Monday night into Tuesday with the passage of the front. Forecast instability should be weakening on Monday night so the threat of severe weather looks low. But skinny cape profiles of 500-1000 j/kg and precipitable water values of 2 standard deviations above normal could lead to efficient rainfall. Some differences regarding the timing of the front, but it appears that precip chances will diminish by Tuesday afternoon. Much cooler air will then filter into the region behind the front. Highs on Wednesday and Thursday will likely fall back into the 60s. The EC would suggest some temps may not rise above 60 at some locations. If this were to occur, frost/freeze headlines might come into play across the northwoods.

AVIATION. for 12Z TAF Issuance Issued at 600 AM CDT Fri Sep 17 2021

LLWS will end quickly early in the TAF period as a cold front continues to move towards the area. The cold front will sweep through the area during the day, bringing the chance for showers and thunderstorms as it tracks through. However, the main dynamics are quickly heading northeast, as is evidenced by the weakening of the convection that is headed towards the region. Recent CAMs models indicate the chance for this activity to hit the TAF sites remains low; therefore, will continue to leave the TAF sites with a VCTS/VCSH for the activity. There is a chance there could be an uptick this afternoon across east-central Wisconsin with daytime heating, but there isn't enough confidence to include in this set of TAFs. Once the cold front clears the region mostly clear skies and dry weather are expected tonight.

GRB WATCHES/WARNINGS/ADVISORIES. Beach Hazards Statement until 7 AM CDT this morning for WIZ022.

SHORT TERM . Kurimski LONG TERM . MPC AVIATION . Kurimski


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 24 mi66 min S 11 G 11 64°F
KWNW3 - 9087069- Kewaunee, WI 27 mi48 min S 8.9 G 11 63°F 1014.7 hPa
GBWW3 36 mi54 min 67°F 1014.7 hPa
45014 49 mi36 min SSW 12 G 16 73°F 66°F2 ft1014.7 hPa

Wind History for Kewaunee MET, WI
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
S3
S7
S7
S7
S12
S14
S13
G17
S13
G16
S12
S9
S11
S11
S10
S9
S9
S9
G12
S12
G15
S10
S10
S9
G15
SW9
G13
S5
G9
S5
S9
1 day
ago
W6
NW4
G9
NW4
G7
W5
G9
SE4
G7
SE7
S10
S5
S7
S9
S9
S9
G12
SW8
S8
S5
SW5
G8
SW7
G10
--
S3
SW3
W1
W2
W3
W3
2 days
ago
SW8
G11
SW11
G17
W11
G19
W17
G24
W11
G21
W13
G20
W8
G19
NW10
G17
W12
G17
W10
G14
W5
G8
W3
W4
G8
NW5
G10
NW6
G10
W3
NW1
NW3
W4
NW4
NW3
W2
NW4
NW5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Manitowoc, Manitowoc County Airport, WI4 mi70 minSSE 310.00 miFair57°F57°F100%1016.8 hPa
Sheboygan County Memorial Airport, WI24 mi73 minSSW 510.00 miFair58°F55°F90%1016.8 hPa

Link to 5 minute data for KMTW

Wind History from MTW (wind in knots)
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrS8S9S13
G20
S17
G22
S14
G21
S18
G22
S18
G25
S13
G20
S15
G20
S11
G19
S10S10S10S11S8S10S8S7S9S7S6CalmS3S4
1 day agoW5NW5NW3W63SE9SE7SE8SE8S8S5S4S3CalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoSW12
G17
W15
G19
W16
G23
W13
G19
W12
G20
W13
G18
W11
G19
W11
G16
W11W9W7NW11
G15
W8W6W4W6W7W4W6NW4W4CalmCalmW4

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.