Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Fontana-on-Geneva Lake, 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 7:11AMSunset 6:05PM Thursday October 19, 2017 10:29 PM CDT (03:29 UTC) Moonrise 6:50AMMoonset 6:28PM Illumination 0% 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
    EDIT      (on/off)   Help
LMZ646 Wind Point Wi To Winthrop Harbor Il- 905 Pm Cdt Thu Oct 19 2017
Rest of tonight..South wind 10 to 15 knots. Clear. Waves 1 to 2 feet.
Friday..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots late in the afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon.
Friday night..South wind 10 to 20 knots becoming 15 to 20 knots late in the evening, then becoming south 15 to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet.
Saturday..South wind 15 to 20 knots. Gusts up to 25 knots. Partly Sunny. Waves 3 to 4 feet.
LMZ646 Expires:201710201000;;114554 FZUS53 KMKX 200205 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 905 PM CDT Thu Oct 19 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-201000-

7 Day Forecast for Marine Location Near Fontana-on-Geneva Lake, WI
   Hourly   EDIT   Help
location: 42.55, -88.56     debug


Area Discussion for - Milwaukee/Sullivan, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kmkx 200210
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
910 pm cdt Thu oct 19 2017

Update
Scattered thin cirrus tonight. Weak high pressure moves away with
a return south flow. Inversion will limit wind increase tonight.

Marine
South winds will be on the increase Friday through Saturday night
ahead of an approaching cold front. So the expected winds and
resultant wave heights will likely necessitate the issuance of a
small craft advisory for the weekend probably Friday night through
Saturday night.

Prev discussion (issued 549 pm cdt Thu oct 19 2017)
update...

scattered thin cirrus. Weak high pressure moves away with a
return south flow setting up into Friday.

Aviation(00z tafs)...

vfr with scattered thin cirrus. Weak high pressure moves away
with a return south flow setting up into Friday. Marginal low
level wind shear mainly south central later tonight.

Prev discussion... (issued 300 pm cdt Thu oct 19 2017)
discussion...

tonight and Friday - confidence... High
a ridge of high pressure nosing into southern wi is proggd to
shift to the east this period setting up a reinforcing surge of
warmer air. With 925 temps poised to reach back well into the
teens celsius, will see temps reach into the mid 70s.

Saturday and Sunday - confidence... Medium
increasingly moist flow as surface cold front remains to our west.

Some showers are proggd to clip portions of the western CWA during
the day Saturday in the better moist advection region. Best rain
chances arrive Saturday night into Sunday morning as influence of
mid level trough and surface 850 millibar cold front move through.

Enough CAPE in the soundings to maintain the thunder mention. Some
showers may linger in the east into the afternoon hours on Sunday.

Monday and Tuesday - confidence... Low to medium
evolution of 500 millibar pattern shows variability amongst the
models as the ECMWF sends southern energy into the evolving
northern stream energy while the GFS is more progressive with the
northern stream energy. Both show decent cold advection in the
wake though the ECMWF has stronger cyclogenesis to our east with a
greater rain potential due to more pronounced def zone considerations.

Gfs is drier. 925 temps drop to the single digits celsius Monday
night into Tuesday. Airmass chilly heading into Tuesday night
though too early to zero in on frost potential. Enough winds up
the column though surface progs suggest some easing of the winds
in low levels and some clearing in the western CWA that could
lead to some frost potential.

Wednesday and Thursday - confidence... Medium
the GFS is quicker and a bit more robust on the return warming
this period. A frontal boundary is proggd to draw closer to
southern wi Thursday afternoon though models show this precip
staying either northwest or north of the CWA through Thursday.

Decent consensus for cold front passage Thursday night.

Aviation(18z tafs)...VFR mostly skc this period. High pressure
moves away with a return southerly flow setting up into Friday.

All in all very dry airmass to remain in place.

Marine... Southerly winds will be on the increase Friday through
Saturday night ahead of an approaching cold front. So the expected
winds and resultant wave heights will likely necessitate the
issuance of a small craft advisory for the weekend probably Friday
night through Saturday night.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Hentz
tonight Friday and aviation marine... Collar
Friday night through Thursday... Collar


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 40 mi29 min S 8 G 11 59°F 1020.7 hPa (-0.3)
WHRI2 - Waukegan Harbor, IL 42 mi49 min SSW 6 G 8 57°F
MLWW3 - Milwaukee, WI 50 mi39 min S 8 G 8 57°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last
24hr
SW9
G13
SW9
G13
SW8
G12
SW8
G13
SW5
G11
SW6
G10
SW5
SW5
SW3
SW3
NW4
NW8
G11
N7
G10
N6
NE4
NE5
NE5
E5
G8
E6
E6
E4
SE3
SE2
SE3
1 day
ago
S8
G12
S7
G10
S6
G10
S5
S4
S6
S5
S6
G10
S6
S6
S8
G11
S10
G14
S8
S11
G17
S13
G20
S12
G16
S14
G19
S10
G18
S10
G15
S10
G14
S7
G11
S8
G11
S9
G14
S10
G14
2 days
ago
S4
SW3
G7
S6
S7
S7
S8
SW8
G12
SW9
SW10
G13
S11
G16
S11
G15
S12
G16
SW9
G13
SW12
G16
S14
G19
S15
G20
S13
G18
SW8
G12
SW12
G15
S7
G10
S8
G11
S8
G11
S8
G12
S8
G11

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington Municipal Airport, WI17 mi59 minN 010.00 miFair48°F34°F60%1020.7 hPa

Wind History from BUU (wind in knots)
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrSW11SW8SW11SW10W4W6NW3CalmSW3CalmCalmN4NW3CalmCalmCalmS5S3S4SE4CalmCalmCalmCalm
1 day agoS5SW6SW8S7S6S7S6SW4SW4SW6S6S8
G14
S11
G16
SW14
G20
S16
G21
SW17
G22
S16
G22
SW19
G25
SW13
G22
S10SW6SW8SW9SW11
G14
2 days agoCalmCalmCalmCalmS3SW7SW7SW10SW8SW15
G19
SW14
G18
SW13
G17
SW15
G23
SW15
G21
SW13SW15
G19
SW17
G22
SW13
G18
SW11
G16
S7SW5SW3SW5SW5

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Milwaukee, WI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.