Friday, June23, 2017 L-36.com


Marine Weather and Tides
St. Francis, WI

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 5:11AMSunset 8:36PM Friday June 23, 2017 5:16 AM CDT (10:16 UTC) Moonrise 4:59AMMoonset 8:05PM Illumination 1% Phase: New Moon; Moon at 29 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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LMZ645 Port Washington To North Point Light Wi- North Point Light To Wind Point Wi- 249 Am Cdt Fri Jun 23 2017
Early this morning..North 10 knots becoming northwest 10 to 15 knots early in the morning. Periods of showers and scattered Thunderstorms. Waves 1 to 3 feet.
Today..Northwest wind 10 to 15 knots with gusts to around 20 knots. Isolated showers in the morning. Waves 1 to 2 feet.
Tonight..Northwest wind 10 to 15 knots with gusts to around 20 knots. Partly cloudy. Waves 1 to 2 feet.
Saturday..West wind 10 to 15 knots with gusts to around 20 knots. Mostly Sunny. Waves 1 to 2 feet.
Saturday night..West wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers through around midnight. Waves 1 to 2 feet.
LMZ645 Expires:201706232115;;677903 FZUS53 KMKX 230749 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 249 AM CDT Fri Jun 23 2017 For waters within five nautical miles of shore on Lake Michigan LMZ644-645-232115-

7 Day Forecast for Marine Location Near St. Francis, WI
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location: 43.01, -87.88     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 230839
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
339 am cdt Fri jun 23 2017

Short term
Today and tonight... Forecast confidence medium.

The upper trough over the northern plains continues to drop south
across lake superior and wisconsin tonight, with southern
wisconsin getting into the entrance region of the 115 knot 250 mb
jet later tonight. Moderate upper divergence through sunrise
today, then weak upper divergence.

A mid level 500 mb shortwave moves across southern wisconsin late
this afternoon and evening. Only weak 700 mb upward motion due to
the cold advection. However lapse rates steepen, and zero to 1 km
mixed layer CAPE values increase to around 350 joules kg.

Therefore expect at least isolated showers late this afternoon
and evening.

Cold air advection will be occurring today behind the cold front.

Some initial clearing, but then more convective clouds will
develop this afternoon and into the evening with the steepening
lapse rates.

Long term
Saturday through Monday Forecast confidence is medium.

An upper trough will dominate with a strong shortwave moving
through Saturday afternoon. Models are in agreement showing some
precip and a few hundred j of cape. Temperatures will be cooler
with the influence of the trough. At the surface, low pressure
will remain over southeast canada with high pressure sliding
south across the norther plains. Low level lapse rates will be
steep so we may tap 850 winds of 20-25 knots. West winds will be
a little gusty on Saturday.

Another shortwave moves through on Sunday creating another chance
for mainly afternoon showers and thunderstorms. There is less
instability on Monday. The ECMWF shows almost no CAPE so just have
chance for showers.

Tuesday and Wednesday Forecast confidence is high.

A mid level ridge pushes into the region on Tuesday and
temperatures start to rebound. Surface slides southwest of the
state on Tuesday bringing dry weather. Then the high moves off to
the southeast as the next low approaches the region. Surface flow
becomes southwest and moisture advection increases. Instability
builds and expect showers and thunderstorms Wednesday or Thursday
as the low moves through.

Aviation(06z tafs)
A line of thunderstorms will slowly slide southeast through
southern wi overnight. This line is moving slower than expected.

Scattered storms are possible out ahead of this line. The risk for
severe storms is pretty low for the rest of the night.

Period of MVFR ceilings possible behind the front overnight.

Quiet weather expected Friday.

Marine
Thunderstorms are sliding southeastward across the area early this
morning. A period of north winds of 15 to 25 mph with the front.

Then mainly northwest winds later today. Some gusts to 25 knots,
especially north areas this afternoon. As a result have issued a
small craft advisory there for this afternoon and early evening.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory from 1 pm this afternoon to 8 pm cdt this
evening for lmz643.

Today tonight and aviation marine... Hentz
Saturday through Thursday... Marquardt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 2 mi27 min N 6 G 8 64°F
45013 6 mi98 min SE 1.9 G 3.9 60°F 59°F1004.8 hPa
PWAW3 - Port Washington, WI 26 mi37 min NW 6 G 13 65°F 1006.1 hPa
KNSW3 - Kenosha, WI 29 mi77 min NNW 6 G 12 65°F 1004.1 hPa (-0.3)
WHRI2 - Waukegan Harbor, IL 45 mi37 min NW 8 G 13 65°F

Wind History for Calumet Harbor, IL
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Last
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SW10
G15
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N3
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N5
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee, General Mitchell International Airport, WI4 mi25 minN 05.00 miThunderstorm Light Rain Fog/Mist66°F64°F96%1004.8 hPa
Milwaukee-Timmerman, WI12 mi22 minNNW 35.00 miHeavy Rain63°F60°F94%1005.4 hPa
Waukesha County Airport, WI17 mi42 minN 04.00 miOvercast63°F62°F100%1003.7 hPa
Racine, Batten International Airport, WI18 mi24 minNNE 75.00 miThunderstorm Light Rain Fog/Mist65°F63°F93%1004.6 hPa

Wind History from MKE (wind in knots)
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Last 24hrW11SW9SW5SW5SW10SW11SW11SW20
G25
SW12SW12SW8
G17
N8NE5E6N4NW3NE4NW4CalmNE10N13
G24
N12E8Calm
1 day agoW3CalmW3CalmSW4SE11SE12S10SE10S9SE12SE12SE10SE9SE6S5S6S4S6S7S8S10S9SW9
2 days agoSW8W8SW7W8W10
G18
W10N18
G24
N11E3S9SW45W7NW5NW5W3W5W3CalmCalmSW4W4CalmW3

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 (6,6,7,8)
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Ground Weather Radar Station Milwaukee, 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.