Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Cleveland, WI

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:45AMSunset 7:51PM Thursday April 27, 2017 11:56 AM CDT (16:56 UTC) Moonrise 6:57AMMoonset 9:23PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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
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LMZ543 Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 948 Am Cdt Thu Apr 27 2017
.small craft advisory in effect through this evening...
Rest of today..NW wind 10 to 15 kts backing W 15 to 25 kts in the late morning and afternoon. Waves building to 2 to 4 ft in the afternoon. Showers in the morning, then a chance of light rain in the afternoon.
Tonight..W wind 1t to 25 kts early...becoming sw at 10 to 20 kts by late evening. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. A chance of sprinkles and flurries in the evening.
Friday..SW wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.
Friday night..NW wind 5 to 10 kts veering N 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.
LMZ543 Expires:201704272230;;349536 FZUS53 KGRB 271448 NSHGRB NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE GREEN BAY WI 948 AM CDT THU APR 27 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN LMZ521-522-541>543-272230-

7 Day Forecast for Marine Location Near Cleveland, WI
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location: 43.85, -87.62     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 271208
afdmkx
area forecast discussion
national weather service milwaukee/sullivan wi
708 am cdt Thu apr 27 2017

Update
Aviation(12z tafs) The rain will end by late morning or early
afternoon. Some snow may mix with the rain mainly north and west
of madison. Areas of MVFR vsbys with the precip. This morning.

Cigs will range from 600-2000 ft this morning transitioning to
3.5 kft by late afternoon, then clearing.

Prev discussion (issued 353 am cdt Thu apr 27 2017)
short term...

today and tonight... Forecast confidence is high.

Cyclogenesis is underway from far SE wi to an ERN ls by early
afternoon. Rainfall rates have been light throughout the night but
moderate rainfall will now push through the area through about 16z
as the negative tilt upper wave moves into SRN wi. Cold advection
and the approach of the upper wave may result in a mixture of
rain and snow beginning around 13-14z mainly north and west of
madison. Brisk wly winds will develop in the wake of the low
pressure area with gradual drying and subsidence bringing some
clearing to the region tnt. A col will settle over SRN wi late tnt
with cool temps and frost expected.

Long term...

Friday... Forecast confidence is medium.

Rain chances increase across southern wi through Fri afternoon as
a low level jet (llj) points into the wi/il border and the low
level front pivots over the area with the approach of a mid level
wave. This is a brief period of forcing for rain that tapers off
from west to east through Fri evening. The ecwmf keeps southern wi
nearly dry for this period while the other models produce precip.

Friday night is looking cold with decreasing clouds over central
wi. Low temps should drop into the mid 30s for northern portions
of the mkx forecast area. This means patchy frost will be a
concern.

Saturday through Sunday night... Forecast confidence is medium.

There is a pretty good chance for dry, raw weather across
southern wi for much of Saturday. We need to wait for the next mid
level wave to reach the area for the rain. The ECMWF is the one
model that spreads precip into southern wi during the afternoon,
but the majority of the precip remains south of the wi/il border. Brisk
east winds and clouds will keep temperatures cool, with highs in
the mid 40s near the lake and lower 50s inland.

By Saturday evening, the LLJ will nose into southern wi, along
with the 850mb warm front and mid level shortwave. This strong
forcing will bring a round of moderate rain. Elevated
thunderstorms will be possible. Winds will remain steady and
strong out of the northeast since we will remain on the north
side of the surface front.

The stronger forcing will be split to the east and west of
southern wi on Sunday, but elevated instability and ample moisture
will lead to off and on showers and thunderstorms throughout the
day, along with continued gusty northeast winds.

Sunday night will bring another round of moderate rain and
scattered thunderstorms. This is the time where the upper low gets
into the midwest, along with the surface occluded front.

Monday through Tuesday... Forecast confidence is medium.

The dry slot should track through southeast wi on Monday and bring
a break in the rain, but brisk westerly winds. The wrap-around
region of the occluded system is expected to swing across southern
wi Monday afternoon. 850mb temps will be falling below freezing,
so some snow mixed into the rain is not out of the question for
mon afternoon/evening before the system moves out.

Quiet and slightly warmer weather will return to southern wi on
Tuesday as that system gets out of the region. The next chance for
rain looks like it will hold off until Thu night.

Aviation(06z tafs)...

the ifr stratus over south central wisconsin will persist through
this morning, before rising toVFR by late afternoon. Westerly
wind gusts of 20 to 25 knots are forecast for this afternoon,
especially in southeastern wi.

Look for the moderate rain showers to move northeast out of the
area during the late morning.

Marine...

a small craft advisory is in effect from 14z-00z today
for brisk wly winds. Variable winds early this morning will become
brisk wly by 9 am as low pressure tracks northward along the
western shore of lake mi. Wind gusts will range from 25-30 kts.

Winds will weaken after sunset.

Mkx watches/warnings/advisories
Wi... None.

Lm... Small craft advisory until 7 pm cdt this evening for lmz643>646.

Update... Gehring
today/tonight and aviation/marine... Gehring
Friday through Wednesday... Cronce


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 8 mi56 min W 24 G 26 44°F 995 hPa (+4.4)39°F
PWAW3 - Port Washington, WI 35 mi53 min W 17 G 27 46°F 997.6 hPa
KWNW3 - 9087069- Kewaunee, WI 43 mi38 min W 9.9 G 17 41°F 993.5 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan, Sheboygan County Memorial Airport, WI13 mi63 minWSW 18 G 2510.00 miOvercast and Breezy44°F41°F89%995.3 hPa
Manitowoc, Manitowoc County Airport, WI20 mi60 minW 15 G 20 miOvercast44°F41°F89%996.4 hPa

Wind History from SBM (wind in knots)
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Last 24hrS13S11S11SW18S15
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SW13SW12SW11SW12
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SW5W10W6NW9NW5--NW4N5N6N3NW7NW11N10W17
G26
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1 day agoSE10SE11SE10S12S15
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SE5S5SE6SE3E3NE4CalmNE4NE5E3S5S8S7SE7S9S9S12
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2 days agoS9SE9SE8S11
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S12S6SE7SE3S3E3CalmCalmE7SE8S5S5SE6S5S5S10S12
G18
S10S11

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (12,3,4,5)
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Ground Weather Radar Station Green Bay, WI
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weather_mapweather_map weather_map

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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.