Monday, March25, 2019 L-36.com


Marine Weather and Tides
Sheboygan, WI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:43AMSunset 7:10PM Monday March 25, 2019 5:50 PM CDT (22:50 UTC) Moonrise 12:00AMMoonset 9:42AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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
LMZ669 Expires:201903260315;;331378 Fzus63 Kmkx 251938 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 238 Pm Cdt Mon Mar 25 2019 For Waters Beyond Five Nautical Miles Of Shore On Lake Michigan. Waves Are Provided As A Range Of Significant Wave Heights, Which Is The Average Of The Highest 1/3 Of The Wave, Along With The Average Height Of The Highest 10% Of The Waves Which Will Occasionally Be Encountered.
Synopsis.. Low pressure of 29.9 inches over western carolinas will continue east through the day tonight while high pressure of 30.4 inches over southern manitoba moves into wisconsin. Brisk north to northeast winds will gradually weaken into tonight. The high pressure area over lake michigan tonight into Tuesday will move to the east Wednesday, while strong low pressure of 29.4 inches moves east across northern ontario into quebec. As a result, brisk southerly winds will develop for Wednesday into Wednesday night. Southwest gales are possible Wednesday over the northern half of the lake. Lmz080-669-671-673-675-777-779-870-872-874-876-878-260315- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 238 pm cdt Mon mar 25 2019 sheboygan wi to pentwater mi south...
Tonight..North winds 15 to 25 kt becoming east 10 to 20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Tuesday..East winds 10 to 15 kt veering to southwest 10 to 20 kt. Waves 1 to 3 ft.
Tuesday night..South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 2 to 4 ft.
Wednesday..South winds 15 to 25 kt increasing to 30 kt. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
Wednesday night..South winds to 30 kt. Waves 5 to 8 ft occasionally to 10 ft.
Thursday..Southwest winds to 30 kt becoming west 10 to 20 kt in the afternoon. Chance of rain. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
Thursday night..Northeast winds 10 to 15 kt increasing to 10 to 20 kt. Chance of rain. Waves 1 to 3 ft.
Friday..East winds 10 to 20 kt becoming northeast. Rain likely. Waves 1 to 3 ft.
Saturday..North gales to 35 kt increasing to gales to 40 kt. Rain and snow. Waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft occasionally to 14 ft.
LMZ669


7 Day Forecast for Marine Location Near Sheboygan, WI
   Hourly   EDIT   Help
location: 43.71, -87.19     debug


Area Discussion for - Milwaukee/Sullivan, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kmkx 251922
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
222 pm cdt Mon mar 25 2019

Discussion
Today through Tuesday night... Forecast confidence is high...

a very quiet period is expected through Tuesday night. High
pressure will move in tonight bringing light and variable winds to
the region. It should be a pretty good radiational cooling
night with a relatively dry profile. However, some upper level
moisture may temper low temperatures slightly.

During the day Tuesday, winds will turn to the south southwest as
the high pressure region moves to the southeast. However,
nearshore areas may begin to see a bit of an easterly component
to the wind in the afternoon with the potential for a weak lake
breeze circulation to set up. A weak upper level shortwave will
also push across the region Tuesday afternoon and potentially
bring some cloud development.

Into Wednesday morning, winds are expected to pick up a bit from
the south southwest. Clouds are also expected to push in
associated with a much more moist air mass.

Wednesday through Thursday night - confidence... Medium
a mid level wave will ride to our north with a warm air advection
regime becoming established. A surface low will be tracking well
north with a fairly tight pressure gradient in place. So the south
to southwest winds will be on the breezy side. The low shifting
east will result in a low level front being dragged through SRN wi
Wednesday night into Thursday morning. A look at both the NAM and
gfs soundings from bufkit shows saturation of any layer will be
tough during this period so any shower chances will be on the
lower end. On Thursday the surface front will shift to our south
with 850 925 front vicinity wi il border. Again, degree of moisture
looks questionable with models showing differing solutions. So
for now will keep pops on the lower end.

Friday and Saturday - confidence... Medium
a potent mid level wave will track to our south aiding low level
cyclogenesis. Surface low will ride to our south along the 850
baroclinic zone. At this time the consensus of the progs suggest
rain chances would expand across the area Friday afternoon and
continue well into the evening. As the low pulls east, northeast
winds would likely wrap in colder air into this system. This is
reflected in a dropoff of critical thicknesses as well as a collapse
of the 850 925 thermal profile. This would result in a transition
to a mix and potentially a changeover to some slushy snow accumulation
across the area later Friday night into Saturday morning.

Sunday and Monday - confidence... Medium
looks like a dry period is shaping up here with high pressure becoming
dominant. The low level thermal trough will ease as we get into the
return flow around the high as it shifts east Monday.

Aviation(21z tafs) Mostly clear skies and light winds will bringVFR
conditions throughout the TAF period. Today, winds will continue from
the northeast but will decrease as high pressure moves overhead. Overnight
winds should be light and variable but will switch to the south southwest
over the course of the day Tuesday. However, near the lake an easterly
component to the wind may persist with a bit of a lake breeze in the
afternoon.

Marine Nearshore winds will continue decreasing today as a
result of high pressure pushing into the region. Waves are expected
to linger in the nearshore but will fall below 4 feet over the next
few hours, which is when the small craft advisory will expire.

The rest of the lake will see some continuing breezy north winds
in the southern half of the lake that will continue to decrease
tonight. Winds will switch to the south southwest Tuesday with
breezy conditions in the northern half of the lake bringing waves
to 6-10 ft by Wednesday with some potential for gale force winds
Wednesday afternoon.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 4 pm cdt this afternoon for
lmz643>646.

Tonight Tuesday and aviation marine... Ark
Tuesday night through Monday... Collar


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 27 mi51 min NE 8 G 8.9 31°F 1028.3 hPa (-0.7)19°F
PWAW3 - Port Washington, WI 42 mi71 min ENE 9.9 G 12 34°F 1028.8 hPa
BSBM4 - Big Sable Point, MI 43 mi191 min N 13 G 19 33°F 1028.4 hPa
LDTM4 - 9087023 - Ludington, MI 43 mi57 min 35°F 7°F

Wind History for Ludington, MI
(wind in knots)    EDIT      (on/off)   Help
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
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last
24hr
N10
G15
N5
G11
N4
G8
NE6
G12
NE2
G7
N4
G7
NE5
G12
NE6
G11
NE7
G10
NE4
G8
NE4
G10
NE4
G7
NE3
NE4
NE4
G11
NE7
G11
NE4
G10
NE5
G11
N5
G9
NW7
G12
NW8
G11
NW6
G14
NW8
G15
N11
G15
1 day
ago
SW11
G14
S8
G11
S5
G8
S9
G12
S9
G14
SW13
G18
SW12
G15
SW11
G15
SW11
SW9
G12
SW9
G13
SW9
SW5
G10
SW8
G12
SW3
W3
SW2
SW3
W5
G8
NW7
G10
N5
G9
NW7
G11
N8
G15
N7
G13
2 days
ago
N8
G14
N5
G10
N5
G9
N3
NE2
NE2
E1
--
E2
E1
E3
E2
E2
E2
E2
SW4
SW6
SW7
SW6
G10
SW9
SW8
G11
SW11
G15
SW10
G14
S14
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI35 mi58 minENE 510.00 miFair36°F21°F57%1028.4 hPa

Wind History from SBM (wind in knots)
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
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last 24hrNE18
G25
NE15
G26
NE15
G24
NE12
G20
NE12N13NE14
G21
NE18
G24
NE16N11N7N8N8N6N9NE17NE14NE14NE11NE12NE9NE8NE8NE5
1 day agoS7S7S7S6S5S5SW4SW6SW8SW5S4S4SW3SW3CalmW3NW5NW4N6NE14NE18NE14NE18NE19
G25
2 days agoN8E6E4CalmCalmCalmCalmCalmCalmCalmW3CalmCalmSW3SW3S7S6S7SW8W7
G16
W10SW7S9S7

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of GreatLakes    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (18,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Green Bay, WI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.