Monday, April24, 2017 L-36.com


Marine Weather and Tides
Wind Point, 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 5:52AMSunset 7:45PM Monday April 24, 2017 8:08 AM CDT (13:08 UTC) Moonrise 5:05AMMoonset 5:37PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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LMZ673 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- 254 Am Cdt Mon Apr 24 2017 Sheboygan Wi To Pentwater Mi South...
Today..East winds 10 to 20 kt becoming southeast. Waves 2 to 4 ft.
Tonight..Southeast winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft occasionally to 7 ft.
Tuesday..Southeast winds 15 to 25 kt. Waves 3 to 5 ft occasionally to 7 ft.
Tuesday night..Southeast winds 15 to 25 kt. Chance of rain showers. Waves 3 to 5 ft occasionally to 7 ft.
Wednesday..South winds 15 to 25 kt. Chance of rain showers. Waves 3 to 5 ft occasionally to 7 ft.
Wednesday night..South winds 10 to 20 kt increasing to 15 to 25 kt. Chance of rain showers. Slight chance of Thunderstorms. Waves 2 to 4 ft.
Thursday..Southwest winds to 30 kt. Chance of rain showers. Waves 4 to 7 ft occasionally to 9 ft.
Friday..South winds 10 to 20 kt. Waves 2 to 4 ft.
LMZ673 Expires:201704241500;;180297 FZUS63 KLOT 240754 GLFLM OPEN LAKE FORECAST FOR LAKE MICHIGAN NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 254 AM CDT MON APR 24 2017 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...HIGH PRESSURE AVERAGING 30.1 INCHES EXTENDS ACROSS THE GREAT LAKES TO THE CENTRAL AND SOUTHERN PLAINS. LOW PRESSURE OF 29.4 INCHES WILL MOVE FROM THE NORTHERN PLAINS TODAY TO LAKE SUPERIOR TUESDAY AND FILL. NEW LOW PRESSURE OF 29.3 INCHES OVER THE CENTRAL PLAINS TUESDAY WILL MOVE NORTHEAST TO LAKE MICHIGAN WEDNESDAY AND WEDNESDAY NIGHT...AND THEN CONTINUE TO THE NORTHEAST THURSDAY. LMZ080-669-671-673-675-777-779-870-872-874-876-878-241500-

7 Day Forecast for Marine Location Near Wind Point, WI
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location: 42.86, -87.09     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 241112
afdmkx
area forecast discussion
national weather service milwaukee/sullivan wi
612 am cdt Mon apr 24 2017

Aviation(12z tafs) Vfr conditions expected for this forecast
period. Considerable upstream cirrus over mn/ia streaming eastward
will affect southern wi today but should thin a bit as it progresses
eastward. Light easterly winds will veer to the south to
southeast. Gusts up to 25 knots are possible this afternoon over
south central wi. Increasing low level winds look to remain just
below low level wind shear criteria tonight.

Prev discussion (issued 300 am cdt Mon apr 24 2017)
short term...

today and tonight - confidence... High.

Light northeast winds, dry air and clear to partly cloudy skies have
allowed temperatures to fall into the mid 30s across eastern parts
of CWA early this morning. Temperatures may slip a few more degrees
through 12z before beginning to rise. Enough surface moisture
remains in place to produce some patchy dew and frost in these areas
through 12z.

Otherwise, low level winds will turn to the south to southeast as
high pressure over southern canada and eastern great lakes moves
farther east and low pressure trough moves into the plains.

Despite shift to more southerly winds, deeper column rh wl remain
well southwest of the region and cutoff to the southeast by second
low pressure system moving through the southeast conus. Hence
only some passing cirrus clouds expected at times today with
partly to mostly sunny skies. 925h temps warm to 13-15 degrees
over inland areas which will allow temps to rise rapidly into the
60s by late morning and early afternoon with cooler temps likely
by lake michigan.

Some increase in higher level moisture will occur across wi tonight
as south winds continue to increase. These winds will carry a weak
short wave and this higher moisture across the area from the plains.

Hence an increase in mostly high clouds likely for tonight with
warmer temperatures. Atmosphere below 10k feet remains parched so
no precipitation expected.

Long term...

Tuesday through Thursday... Forecast confidence is medium.

A broad, amplified upper trough across the western CONUS will
slowly move to the east through the period, ejecting multiple
impulses toward the upper midwest. The strongest shortwave will
likely push through the region late Wednesday or early Thursday.

This will result in an extended period of cyclonic flow in the lower
levels. By Tuesday morning, an inverted surface trough will extend
from the southern plains into the far western great lakes. This
trough will slowly move eastward as low pressure develops in the
southern plains and moves toward wisconsin. Differences exist in the
guidance with regards to system timing and track beginning
Wednesday, and obviously this introduces some uncertainty from
Wednesday and into Thursday. Nonetheless, the low will move through
at some point late Wednesday or early Thursday, bringing around
an inch of rain to portions of the cwa.

All guidance also brings some instability into SE wi on Wednesday,
though any instability will be limited by ample cloud cover.

However, given this marginal instability, strong system dynamics,
and 0-6 km bulk shear in the neighborhood of 50 kts, I cannot rule
out severe weather at this point. Accordingly, SPC has introduced
a marginal risk to the southeast cwa.

Friday through Monday... Forecast confidence is low.

The broad upper trough over the western CONUS discussed in the last
section finally pushes through the midwest toward the end of the
weekend, with remarkably good agreement at the 500mb level between
the GFS and euro. All guidance also shows a strong surface low
developing in the southern plains ahead of the upper trough and
pushing into the upper midwest. Differences remain regarding the
timing and track of the low, but it still looks like this system
could drop significant rainfall amounts across the region next
weekend.

Aviation(06z tafs)...

vfr conditions will persist formon-mon nt.

Marine...

northeast winds will turn to the southeast this morning as weak high
pressure slides farther off to the east and low pressure advances
into the central plains. Tightening pressure gradient will result
in increasing wind speeds, but shallow stable layer should prevent
stronger winds from mixing down to lake surface. Breezier southeast
winds will linger through mid-week as low pressure eventually moves
across the western great lakes later Wednesday.

Fire weather...

near critical fire weather conditions are expected from late morning
through the afternoon. Humidities will lower to between 20 and 30
percent and breezy south to southeast winds will develop. Wind
gusts of 20 to 25 mph are expected as well. Daytime temperatures
away from lake michigan will peak in the upper 60s to lower 70s,
which is just under red flag criteria. With the fine fuel moisture
code forecast for today remaining just below critical threshold, wl
hold off on coordinating red flag warning with widnr/usfs
representatives. Another warm and breezy day lies ahead for Tuesday
but minimum daytime humidity values are expected to remain higher.

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

Lm... None.

Update... mbk
today/tonight and aviation/marine... mbk
Tuesday through Sunday... Bsh


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 13 mi79 min NE 7.8 G 7.8 42°F 40°F2 ft1017.5 hPa (+0.4)41°F
KNSW3 - Kenosha, WI 42 mi69 min N 5.1 G 6 43°F 1016.9 hPa (-0.0)
45029 43 mi39 min ESE 14 G 18 46°F 46°F2 ft1018.1 hPa38°F
MLWW3 - Milwaukee, WI 44 mi49 min NE 4.1 G 4.1 42°F
45161 45 mi49 min E 12 G 14 45°F 45°F1 ft1017.7 hPa
HLNM4 - 9087031 - Holland, MI 47 mi51 min E 15 G 20 45°F 27°F
MKGM4 - Muskegon, MI 47 mi39 min ESE 13 G 15 46°F 1018.6 hPa38°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Racine, Batten International Airport, WI39 mi76 minN 410.00 miFair40°F37°F89%1018 hPa

Wind History from RAC (wind in knots)
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Last 24hrW8W7W855S7N17N16N11NE12NE10N9N6N7N6N6N6N7N8NE7NE4CalmN4NE3
1 day agoN8NE9N13N11NE7NE6NE8NE6NE6NE4E3CalmCalmCalmCalmW3CalmW3CalmW5W6SW3W4W7
2 days agoNW10
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N13N10NE10NE10NE10NE11NE7N3N4N4N8N8N9N8NE6N5N6N5N5N6

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 (9,2,3,4)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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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.