Friday, September20, 2019 L-36.com


Marine Weather and Tides
Cleveland, WI

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:34AMSunset 6:54PM Friday September 20, 2019 11:50 AM CDT (16:50 UTC) Moonrise 10:30PMMoonset 12:50PM Illumination 60% Phase: Waning Gibbous; Moon at 21 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 Expires:201909202215;;078188 Fzus53 Kgrb 201457 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 957 Am Cdt Fri Sep 20 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz541>543-202215- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 957 Am Cdt Fri Sep 20 2019
.dense fog advisory in effect until 3 pm cdt this afternoon...
Rest of today..Light and variable wind becoming se 5 to 10 kts in the afternoon. Waves 2 ft or less. Widespread fog through early afternoon.
Tonight..SE wind 5 to 10 kts. Waves 2 ft or less. Patchy fog. A slight chance of showers in the evening, mainly south of algoma.
Saturday..S wind 10 to 20 kts, increasing to 15 to 25 kts by afternoon. Waves building to 3 to 6 ft. Showers likely and a chance of Thunderstorms. Patchy fog. A small craft advisory may be needed.
Saturday night..SW wind 15 to 25 kts decreasing to 10 to 20 kts after midnight. Waves 3 to 6 ft. Showers likely and a chance of Thunderstorms. Patchy fog.
LMZ543


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 201356
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
856 am cdt Fri sep 20 2019

Update Removed some more counties from dense fog advisory.

Lower vsbys most widespread across the northern portion of the
cwa. Would expect us to be able to let the advisory expire
naturally at 10 am but will see how trends play out over the next
hour or so.

Pc

Marine Still looking at quiet conditions across the lake today
with an uptick in winds and waves for Saturday as low pressure
approaches. Potential still there for small craft conditions to be
met with this regime.

Pc

Prev discussion (issued 645 am cdt Fri sep 20 2019)
update...

clouds from convection in illinois have moved into the area and
have helped improve visibilities in the counties along the state
line and waukesha county. Therefore have cancelled the dense fog
advisory for those counties. Areas of dense fog will continue to
impact most of the state before lifting later this morning.

Aviation(12z tafs)...

lifr ceilings and visibilities continue to impact most of the
state. Conditions will gradually improve through the morning with
vfr conditions expected by the afternoon.

Areas along the wi il border and sites near mke may see a brief
period of MVFR visibilities around sunrise, otherwiseVFR
conditions are expected.

Light southeast winds are expected today. There is a slight chance
for a few thunderstorms this afternoon, but not enough confidence
to add to the TAF at this time. Winds become light and variable
again overnight, before a system brings gusty southerly winds and
thunderstorms to the area for Saturday.

Prev discussion... (issued 423 am cdt Fri sep 20 2019)
short term...

today through tonight... Forecast confidence is medium to high...

areas of dense fog will continue to impact most of southern
wisconsin this morning before lifting 2-3 hours after sunrise.

Milwaukee, racine, and kenosha counties should avoid significant
reductions in visibility as there is a bit more cloud cover and
larger dewpoint depressions. Otherwise mostly quiet conditions are
expected today into tonight. There is a slight chance for a
few thunderstorms this afternoon across most of the area.

Questions will be if we can break the cap in place. Some warm air
advection seen at 850mb this afternoon may help provide some lift
for thunderstorm development. Summer temperatures will continue
this afternoon with highs expected to get into the low 80s for
most of the area.

Saturday and Sunday... Forecast confidence medium.

A strong upper trough over the WRN usa will lift newd through the
nrn great plains and then ewd across SRN canada for the weekend.

Its associated cold front will move across SRN wi for late Sat nt
into sun. Another upper trough will then approach from the great
plains on Sun and across the area Sun nt-mon am. Showers are
likely with scattered tstorms for Sat as a weak band of PVA and an
increasing LLJ and moisture transport move into the region. More
widespread convection and heavy rain is then expected Sat nt-sun
am especially over far SRN wi which saw flooding rains last week.

Very high pws of 1.5-2.0 inches are forecast. While the mean flow
will be fairly strong, the LLJ is aligning with the upper flow
allowing for weak corfidi vectors. Training showers and storms are
expected and a flash flood watch may be needed for far SRN wi.

Long term... Monday through Thursday... Forecast confidence medium.

The upper trough will be moving away on Mon but will have to watch
for broken stratocumulus formation as least for the morning hours.

500 mb height rises through the day should lead to sunny skies
for later in the afternoon. A sfc ridge will shift ewd across srn
wi for Mon nt.

Another strong and large low pressure area will move across srn
canada for tue-wed, aiding swly flow and warm advection for SRN wi.

The weak cold front will then pass Wed aft-nt. High pressure will
follow for thu. Another warm advection pattern may quickly move
back into the area for later thu. Only low pops are forecast at
this time for Tue nt-thu.

Aviation(09z TAF update)...

areas of dense fog are impacting most of southern wisconsin.

Expect lifr visibilities and ceilings to continue for most of
southern wisconsin until it lifts by 15z. Mke and sites nearby
may only see visibilities reduce briefly to MVFR around sunrise as
the air is not as saturated. Other than the fog this morningVFR
conditions are expected with southerly winds below 10 knots.

Marine...

southerly flow continues across lake michigan today through
Saturday. Today conditions will be quite calm, but Saturday as the
low approaches expect winds up to 30 knots across the lake. A
small craft advisory will likely be needed for Saturday afternoon
and night. Rounds of rain and thunderstorms are also expected
before the front pushes through Sunday afternoon and evening.

Winds will also decrease and shift to the west to northwest into
Monday.

Mkx watches warnings advisories
Wi... Dense fog advisory until 10 am cdt this morning for wiz046-047-
051-052-056>060.

Lm... None.

Today tonight and aviation marine... Rar
Saturday through Thursday... Gehring


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 8 mi51 min N 8 G 8 64°F 1020.8 hPa (+0.4)
PWAW3 - Port Washington, WI 35 mi71 min Calm G 1.9 70°F 1021.7 hPa
KWNW3 - 9087069- Kewaunee, WI 43 mi51 min ENE 1 G 4.1 62°F 1020.4 hPa (+0.4)

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI13 mi58 minNE 45.00 miMostly Cloudy with Haze74°F66°F79%1020.7 hPa
Manitowoc, Manitowoc County Airport, WI20 mi55 minESE 510.00 miPartly Cloudy71°F66°F87%1020.9 hPa

Link to 5 minute data for KSBM

Wind History from SBM (wind in knots)
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Last 24hr--W4CalmSE7SE6S4S4S7S3CalmCalmCalmCalmN3CalmCalmCalmCalmCalmCalmCalmS3NE3NE4
1 day agoS6S9
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S10S8S5S9S9S5S7S7S7S7S6S8S8S6S6S8S7W6
2 days agoS9S10S7SE8SE8SE6SE7S4S4CalmCalmS3S4S3S3S5S7S7S7S6S6S10S5S7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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GEOS 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.
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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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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.