Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Cleveland, WI

Version 3.4
NOTICE
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 6:01AMSunset 7:45PM Thursday August 22, 2019 1:17 PM CDT (18:17 UTC) Moonrise 11:20PMMoonset 12:51PM Illumination 54% Phase: Third Quarter Moon; Moon at 22 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:201908222215;;038374 Fzus53 Kgrb 221514 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 1014 Am Cdt Thu Aug 22 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-541>543-222215- 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- 1014 Am Cdt Thu Aug 22 2019
This afternoon..NE wind 10 to 15 kts. Waves 1 to 3 ft. A chance of sprinkles.
Tonight..N wind 10 to 15 kts. Waves building to 1 to 3 ft. Mostly clear.
Friday..NE wind 5 to 10 kts. Waves subsiding to 2 ft or less. Mostly Sunny.
Friday night..E wind 5 to 10 kts. Waves 2 ft or less. Clear.
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 221723
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
1223 pm cdt Thu aug 22 2019

Update
The grb sounding from this morning showed steep low level lapse
rates up to about 700mb then a sizable cap was above that layer.

The shortwave moving through the area coupled with afternoon
heating may allow for a very light shower to bubble up. But
anything that does start to develop won't be able to make it
through the cap so expect brief light showers across central wi
that will gradually filter south through the afternoon hours.

All in all, a few sprinkles are possible but most this will stay
mainly as virga.

Aviation(18z tafs)
A strato-cu deck in the 4,000-5,000ft range has developed across
central wi and is filtering south towards the terminals. These
clouds are expected to hang around until after 00z, then start to
scatter out. Winds stay out of the E NE with speeds at or below
10kts. Brief gusts of 15-18kts are possible at kmke and kenw.

Prev discussion (issued 945 am cdt Thu aug 22 2019)
update...

satellite imagery showed a broad swath of strato-cu from central
to northern wi. A shortwave moving through the region should be
able to keep these clouds around and temps on the cooler side with
highs staying the low to mid 70s. No major changes are needed at
this time.

Marine...

north to northeast gusts to 20 knots are possible across lake
michigan today. This will allow some waves of 2 to 4 feet to build
along the nearshore and 3 to 5 feet over the southern half of the
open waters.

Prev discussion... (issued 550 am cdt Thu aug 22 2019)
update...

no changes to the forecast at this time.

Aviation(12z tafs)...

vfr will prevail today. A sct to broken stratocu deck should form
by mid to late morning, continuing into the afternoon. This will
be based between 4 and 5kft. A few sprinkles aren't out of the
question, but generally dry conditions are expected. Winds will be
out of the northeast.

Prev discussion... (issued 246 am cdt Thu aug 22 2019)
short term...

today and tonight... Forecast confidence high...

mid and high level clouds continue to push off to the south and
southeast this morning, with cooler and drier air building into
the area from the north. Early morning temperatures have already
fallen into the upper 50s and low 60s in many spots, and will cool
another couple of degrees before sunrise.

A large area of mid level stratus has developed to our north,
ahead of another shortwave which is rotating south across
minnesota into northern wisconsin, around the western periphery of
the main upper level low, which is over central quebec. This will
eventually push another cold front through the area later today,
as well result in a fairly widespread stratocu deck for much of
the day. A few sprinkles aren't entirely out of the question,
especially over central wisconsin, but forecast soundings show a
very dry layer both above and below the cloud deck, suggesting
that any meaningful precip will be pretty tough to come by.

Increased clouds today will keep temperatures on the cool side,
with low 70s north and mid 70s south.

Skies should mostly clear out tonight, with temperatures again
falling into the low to mid 50s. Some patchy fog will be possible,
especially in low lying and sheltered areas.

Long term...

Friday through Sunday... Forecast confidence high...

expansive high pressure will very gradually push east across the
northern great lakes Friday and Saturday, with cool and dry
easterly flow across the region. Highs Friday will be in the low
70s with a mix of Sun and clouds, with readings topping out in the
mid 70s on Saturday. Saturday morning may be the coolest of the
stretch, with morning lows away from lake michigan a degree or
two on either side of 50.

Low level flow turns progressively more southerly through the day
Sunday, with moisture gradually returning to the area ahead of a
broad area of mid level troughing to our west. The daytime hours
Sunday should be dry, with highs in the mid to upper 70s. Showers
and a few thunderstorms should slowly move in from the west Sunday
evening and night, though their eastward progress will likely be
slowed by dry air.

Monday through mid week... Forecast confidence moderate.

Monday and Monday night looks to be the most active period, with a
robust shortwave and strong cold front approaching and moving
through the region. A few rounds of rain and thunderstorms will be
possible during this time, depending on exact timing of the front
and structure of the upper level wave.

Guidance is then in pretty good agreement in carving out an
expansive upper level low across the great lakes and southern
ontario during the midweek timeframe--a very autumn-like pattern.

Depending on where exactly the upper low sets up, we may see a few
scattered rain showers across the region. Highs will likely be
back into the low 70s, dependent on the extent of cloud cover.

Aviation(09z tafs)...

vfr conditions are expected today, with light northeast winds. A
scattered to broken stratocu deck is likely for much of the day,
based around 4-5kft. A stray sprinkle or two is possible as well,
but no meaningful precipitation is expected.

Marine...

north to northeast winds are expected across lake michigan today
and tomorrow, with some periodic gustiness between 15 and 20 knots
at times. Waves will build into the 2-3 foot range across the
nearshore and 3-5 feet over the southern third to half of the open
waters. Winds will become more easterly heading into Saturday and
then gradually become more and more southerly heading into Sunday
and Monday. Thunderstorm chances will return to the area Monday
and Monday night, ahead of a strong cold front.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Stumpf
today tonight and aviation marine... Boxell
Friday through Wednesday... Boxell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 8 mi18 min NE 8.9 G 9.9 67°F 1018.6 hPa (+0.8)55°F
PWAW3 - Port Washington, WI 35 mi38 min ENE 5.1 G 8 70°F 1019.3 hPa
KWNW3 - 9087069- Kewaunee, WI 43 mi48 min NNE 1.9 G 8 69°F 1018.5 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI13 mi25 minENE 810.00 miOvercast71°F57°F61%1018.1 hPa
Manitowoc, Manitowoc County Airport, WI20 mi22 minNE 310.00 miLight Rain63°F57°F84%1019.1 hPa

Link to 5 minute data for KSBM

Wind History from SBM (wind in knots)
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Last 24hrW12--NW6NW8NW7NW4CalmN6--N7N6--N5N3--N3CalmCalmNE34--NE7E8NE8
1 day agoS5S5S8--SE5S3W3------------S4----CalmNW4------NW11NW6W10
G16
2 days ago----S7S5SE5S5S4CalmCalm--Calm----CalmCalmCalmCalmCalmCalmS5Calm3S5Calm

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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wmap_A
GOES Local Image of    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 (14,3,4,5)
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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.