Friday, January19, 2018 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 7:15AMSunset 4:53PM Friday January 19, 2018 11:20 AM CST (17:20 UTC) Moonrise 9:49AMMoonset 8:31PM Illumination 9% 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
    EDIT      (on/off)   Help
LMZ646 Wind Point Wi To Winthrop Harbor Il- 1105 Am Cst Fri Jan 19 2018
.small craft advisory in effect through late tonight...
Rest of today..Southwest wind 15 to 20 knots. Gusts up to 25 knots. Mostly Sunny. Waves 1 to 2 feet.
Tonight..Southwest wind 15 to 25 knots with gusts to around 30 knots becoming 15 to 20 knots with gusts to around 25 knots after midnight, then easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Partly cloudy. Waves 1 to 2 feet.
Saturday..Southwest wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then becoming southwest 5 to 10 knots late in the afternoon. Partly Sunny. Waves around 1 foot.
Saturday night..Southwest wind 5 to 10 knots becoming south early in the morning. Patchy fog after midnight. Slight chance of rain and light freezing rain after midnight. Waves nearly calm. Wave heights are for ice free areas.
LMZ646 Expires:201801192300;;687272 FZUS53 KMKX 191705 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 1105 AM CST Fri Jan 19 2018 For waters within five nautical miles of shore on Lake Michigan LMZ646-192300-

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 191539
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
939 am cst Fri jan 19 2018

Update No changes planned to forecast at this time.

Pc

Marine Small craft advisory still looks good. Southwest winds
ramping up.

Pc

Prev discussion (issued 558 am cst Fri jan 19 2018)
update...

milder air will continue to spread into southern wi on brisk
southwest winds. Some locations could hit 40. High clouds are
expected. We should see a burst of gusts of 25 to 30 mph by
afternoon.

Aviation(12z tafs)...

vfr is expected through the period. Gusty southwest winds 15 to 25
knots today, with llws again by evening as surface winds weaken.

Cirrus today.

Prev discussion... (issued 326 am cst Fri jan 19 2018)
short term...

today and tonight... Forecast confidence is medium.

Milder air will continue to spread into southern wi on steady
southwest winds. Some locations could hit 40. Mid and high clouds
are expected. We should see a burst of gustier southwest winds by
afternoon into the evening, with the passage of a surface trough
stemming from low pressure crossing southern ontario.

The upper level flow become more zonal, with a 150 knot 250 mb
jet MAX moving across the lake superior region. This results in
the mid level shortwave and weak 700 mb upward motion. As a
result, expect some high level clouds. Low levels are still dry.

850 mb warm air advection continues today, with weak cooling
tonight behind the upper great lakes shortwave.

Saturday through Sunday night... Forecast confidence is medium.

Weak warm air advection lingers into Saturday, as low clouds move
into the area under the strong inversion. Mild temperatures are
expected to linger, with upper 30s in most areas.

Models then show the warm front approaching the area from the
south Saturday night into Sunday. Subsequent low level
frontogenesis response pushes into the area mainly Sunday
afternoon. There is weak 850 mb convergence in the area Saturday
night into Sunday morning, before warm air advection develops
later in the day.

Thus, the upward vertical motion Saturday night into Sunday
morning is rather weak, before increasing later in the day.

Surface temperatures remain below freezing later Saturday night,
before increasing gradually Sunday morning. Given the relatively
shallow saturation up to around 800 mb, continued mention for
light freezing rain for this period.

Chances for light rain is then forecast for the rest of the day,
as temperatures warm above freezing. Given the weak upward
vertical motion, this may end up being freezing drizzle drizzle
Saturday night into Sunday.

Warm air advection then becomes more robust Sunday night, with the
closed 500 mb low approaching the region from the southwest. The
area gets into the warm sector airmass with this system, and this
will bring rain to the area. Some fog is expected as well.

Forecast soundings were showing very weak elevated cape, but will
not mention thunder at this time.

Long term...

Monday through Thursday... Forecast confidence is medium.

Models have trended into somewhat better agreement with the
occluding low track across the area Monday into Monday night.

They are generally now taking the low northeastward through
southern and east central wisconsin. The ECMWF is a bit further to
the south and keeps it in far northern illinois, with the GFS and
canadian further north.

Still, the consensus is for the warm sector to remain in the area
into Monday, which will keep the rain going. The colder air then
pushes into the area Monday night and Tuesday. This will bring a
change to snow Monday night before tapering off Tuesday morning.

At this time, is does not appear to bring much in the way of
snowfall.

The deep 500 mb low should depart the region Tuesday, with
northwest flow lingering into the rest of the week. Quiet weather
and more seasonable temperatures are anticipated at this time.

Aviation(09z tafs)...

vfr is expected through the period. Llws tonight will give way to
a period of gusty winds during the day Friday, with llws
increasing again by evening. Surface winds will be from the
southwest, and increase to 15 to 25 knots this afternoon.

Marine...

small craft advisory is now in effect from 9 am until late Friday
night, with southwest winds expected to gust to near 30 kt during
the afternoon and evening.

Winds will increase again from the east and southeast, ahead of
an approaching storm system Saturday and Sunday. This will lead
to higher waves across the nearshore waters, and likely small
craft advisories.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 3 am cst Saturday for lmz643>646.

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


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 mi80 min SW 8.9 G 20 35°F 1011.2 hPa (-0.3)
WHRI2 - Waukegan Harbor, IL 42 mi40 min SW 14 G 21 35°F
MLWW3 - Milwaukee, WI 50 mi30 min SW 17 G 19 35°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last
24hr
SW11
G20
SW13
G20
S16
G20
SW13
G18
S17
G21
SW16
G21
S16
G21
SW13
G22
S13
G18
S13
G17
S14
G19
S12
SW13
G20
SW11
G17
SW13
G17
SW10
G16
SW12
G17
SW15
G19
SW13
G17
S12
G18
S12
G16
S12
G16
S13
G19
SW15
G19
1 day
ago
SW4
G11
SW6
G14
SW9
G15
SW8
G15
SW12
G20
SW12
G16
S10
G15
S15
G20
SW17
G21
SW12
G18
SW14
G20
SW11
G21
SW14
G20
SW11
G20
SW10
G20
SW11
G23
SW9
G16
SW10
G17
SW8
G14
SW9
G13
SW8
G15
SW10
G14
SW13
G18
SW14
G22
2 days
ago
W8
G14
W7
G13
NW11
G16
NW9
G15
W8
G13
W9
G14
NW8
G12
W6
G10
W6
G12
W5
G11
W6
G11
W6
G9
W5
G9
W6
G10
W6
G12
W4
G10
W6
G10
W5
G9
SW6
G10
SW5
SW5
G8
SW7
G11
SW9
SW10
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington Municipal Airport, WI17 mi25 minSSW 1710.00 miFair35°F22°F61%1009.1 hPa

Wind History from BUU (wind in knots)
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
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
Last 24hrSW15SW13SW12SW11
G17
SW13SW11
G14
SW8SW9SW13
G18
SW9SW10SW11
G17
SW12SW11SW9SW10
G15
SW9SW7SW5SW8SW6S8SW11SW13
1 day agoW11
G16
W13
G18
SW13
G23
SW14
G21
SW13SW16
G22
SW14
G18
SW16
G20
SW15SW13
G19
SW17
G23
SW14
G20
SW15
G22
SW14
G23
W14
G20
SW14
G19
W9
G15
SW10SW7
G14
SW7SW10SW12SW13SW12
G15
2 days agoN12
G15
N9N12
G18
N11N8NW8NW5W5CalmCalmS3S3SW4SW3SW4SW4SW5SW4SW5SW5SW4SW5W8W8
G15

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 (12,3,4,5)
      (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.