Monday, October23, 2017 L-36.com


Marine Weather and Tides
Pleasant Prairie, WI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 7:13AMSunset 5:57PM Monday October 23, 2017 6:28 AM CDT (11:28 UTC) Moonrise 10:44AMMoonset 8:41PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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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LMZ646 Wind Point Wi To Winthrop Harbor Il- 506 Am Cdt Mon Oct 23 2017
.small craft advisory in effect from late tonight through Tuesday morning...
.gale watch in effect from Tuesday morning through late Tuesday night...
Today..North wind 10 to 15 knots backing northwest with gusts to around 20 knots late in the afternoon. Patchy fog in the morning. Rain likely in the morning. Chance of rain in the late morning and afternoon. Waves 1 to 2 feet.
Tonight..Northwest wind 10 to 15 knots rising to 15 to 20 knots in the late evening and early morning, then backing west early in the morning. Gusts up to 25 knots. Patchy fog through the night. Chance of rain through around midnight. Rain after midnight. Waves 1 to 2 feet.
Tuesday..West wind 15 to 25 knots becoming northwest up to 30 knots in the afternoon. Gusts up to 35 knots. Rain. Waves 3 to 4 feet building to 3 to 5 feet late in the afternoon.
Tuesday night..Northwest wind up to 30 knots easing to 15 to 25 knots after midnight. Gusts up to 35 knots. Chance of rain through around midnight. Waves 3 to 5 feet subsiding to 3 to 4 feet after midnight.
LMZ646 Expires:201710231600;;280765 FZUS53 KMKX 231006 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 506 AM CDT Mon Oct 23 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-231600-

7 Day Forecast for Marine Location Near Pleasant Prairie, WI
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location: 42.52, -87.84     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 230800
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
300 am cdt Mon oct 23 2017
today and tonight... Forecast confidence is medium...

dense fog will affect south central and portions of southeast
wisconsin this morning as the dense cirrus thins from the west.

A strong 165 knot upper jet on the back side of a digging trough
over the northern plains will kick a shortwave over the mid
mississippi valley north, forming an upper low over eastern iowa
and northern illinois tonight. This very dynamic system will lift
a low north across indian today, then intensify as it approaches
sault ste marie michigan late tonight.

Initially the band of light rain over the far southeast should
push just to the east, but then rain chances will increase this
afternoon and early evening, before much of the area is covered.

Northwest winds will be on the increase tonight as colder air is
drawn into southern wisconsin.

Tuesday and Tuesday night - confidence... Medium
a nasty period setting up with strong low vicinity of northern
lower mi with tight pressure gradient across the area. A cold
gusty wind driven rain expected with temperatures mostly in the
40s and wind chills likely remaining in the 30s for much of the
day. The low slowly pulls away Tuesday evening with pops becoming
trimmed to the eastern cwa. Some wet flakes cannot be ruled out
towards the end of the event but all in all soundings look
supportive of rain for the duration. Colder and more snow
conducive soundings appear to arrive after column has dried out
later Tuesday evening. At this time cloud wind considerations
suggest frost potential limited Tuesday night.

Wednesday and Thursday - confidence... Medium
mid level ridging works in through at least Wednesday night ahead
of the next trough riding into the northern plains. A good deal
of WAA evolves ahead of the surface 850 low that spins up to our
north. The GFS is faster on the trailing cold front which suggests
a mid day FROPA with a non-diurnal temp trend. Meanwhile the
ecmwf is slower would keep us in the warm sector all day with peak
925 temps in the 10-13c range. For now will stick with the
blended guidance which suggests a decent rise into the 50s.

Friday through Sunday - confidence... Medium
coldest air of the season poised to come rushing in behind the
departed low. 850 temps drop off well down in the single digits
below zero c. Certainly potential for frost freeze conditions
depending on cloud wind considerations. Some rain or rain snow mix
potential associated with some low level troughiness. May even
have to keep an eye on wind trajectories come Sunday as gfs
suggests some lake effect potential.

Aviation(06z tafs) The are of light rain over the far southeast
should push just to the east later this morning. Will see lifr at
times west and north areas, as the high clouds thin.

After visibilities improve mid morning, it should be dry withVFR
conditions for most of the day, though showers are possible by
late afternoon as an upper low develops across northern illinois
tonight. Showers will become likely in the evening and MVFR
ceilings are expected to develop, with some ifr possible east
late.

Marine Light winds are expected today. Northwest winds will
increase tonight into Tuesday though on the back side of a strong
low pressure system expected to develop over lower michigan as it
heads towards sault ste marie michigan late tonight. A small
craft advisory is in effect late tonight with a gale watch Tuesday
and Tuesday night.

Mkx watches warnings advisories
Wi... Dense fog advisory until 9 am cdt this morning for wiz046-047-
051-056>058-062-063-067-068.

Lm... Gale watch from Tuesday morning through late Tuesday night for
lmz643>646.

Small craft advisory from midnight tonight to 9 am cdt Tuesday
for lmz643>646.

Today tonight and aviation marine... Hentz
Tuesday through Sunday... Collar


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 5 mi29 min N 7 G 8 50°F 1013.5 hPa (-1.1)
WHRI2 - Waukegan Harbor, IL 11 mi49 min NNW 6 G 9.9 50°F
45174 28 mi19 min N 16 G 19 53°F 57°F4 ft52°F
MLWW3 - Milwaukee, WI 36 mi39 min N 5.1 G 5.1 50°F
FSTI2 39 mi89 min N 19 52°F
OKSI2 44 mi89 min N 8.9 54°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi39 min N 16 G 19 55°F 60°F3 ft1013.2 hPa (-0.9)
CHII2 - Chicago, IL 44 mi39 min N 19 G 23 54°F 53°F
CNII2 47 mi29 min NNW 12 G 18 53°F 51°F

Wind History for Calumet Harbor, IL
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Last
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S12
G17
S12
G19
S12
G18
S14
G21
S11
G16
S12
G18
S11
G20
S11
G15
S12
G22
NW8
G17
NW13
G20
NW11
G15
N10
G17
N12
G17
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N9
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1 day
ago
S8
G13
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G14
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G15
S13
G17
S11
G14
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G16
S13
G18
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G23
S11
G15
S19
G24
S14
G20
S9
G16
SE11
G16
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G16
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G20
S12
S11
G20
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G17
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G15
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G16
S7
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G16
2 days
ago
S4
S7
G10
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G10
S7
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G9
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S10
G14
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G16
S10
G13
S9
G17
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G16
S5
G11
S6
G11
S9
G13
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G13
S8
G13
S6
G9
S9
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G12
S7
G10
S8
S6
G10
S7
G12
S10
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kenosha, Kenosha Regional Airport, WI7 mi36 minN 410.00 miLight Rain50°F48°F93%1014 hPa
Chicago/Waukegan Regional Airport, IL7 mi34 minN 56.00 miLight Rain Fog/Mist50°F50°F100%1013 hPa
Racine, Batten International Airport, WI17 mi36 minNNW 510.00 miLight Rain50°F48°F96%1014.3 hPa

Wind History from ENW (wind in knots)
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Last 24hrS11S9S10S10S14S9SW13
G17
NW14
G21
N12
G19
N7N5N3N5CalmNW5NW3W3N5NW5NW6N6N4N4N4
1 day agoS8S10S9S10
G17
S15S13
G21
S13
G21
S13
G21
S15
G22
S13
G20
S13S7S10S12S12S9
G21
S11S11S12
G18
S12S10
G19
S13S9S11
2 days agoSW3SW4SW5SW8W9SW10SW11SW12SW15S9S7S6S6S8S8S9S7S9S9S12
G19
S8S9S9S8

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 (7,2,3,4)
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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.