Saturday, July20, 2019 L-36.com


Marine Weather and Tides
Twin Lakes, WI

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:32AMSunset 8:26PM Saturday July 20, 2019 5:54 PM CDT (22:54 UTC) Moonrise 10:48PMMoonset 9:00AM Illumination 85% Phase: Waning Gibbous; Moon at 19 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- 507 Pm Cdt Sat Jul 20 2019
Tonight..North wind 5 to 10 knots. Chance of showers in the late evening and early morning. Patchy fog. Chance of Thunderstorms in the late evening and overnight. Showers likely early in the morning. Waves around 1 foot.
Sunday..Northeast wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then becoming northeast 10 to 15 knots in the afternoon. Chance of showers and Thunderstorms in the morning. Waves around 1 foot.
Sunday night..Northeast wind 10 to 15 knots. Partly cloudy through around midnight then becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning.
Monday..Northeast wind 15 to 20 knots backing north late in the afternoon. Partly Sunny in the morning then clearing. Waves 3 to 4 feet building to 4 to 6 feet in the late morning and early afternoon, then subsiding to 3 to 4 feet late in the afternoon.
LMZ646 Expires:201907210415;;372589 FZUS53 KMKX 202207 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 507 PM CDT Sat Jul 20 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-210415-


7 Day Forecast for Marine Location Near Twin Lakes, WI
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location: 42.52, -88.26     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 202125
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
425 pm cdt Sat jul 20 2019

Short term
Late this afternoon and tonight... Forecast confidence is medium.

Cancelled the excessive heat warning for the area, as the ongoing
thunderstorms and winds shifting north northeast behind the cold
front are bringing in cooler temperatures and resultant heat index
values.

Current convection has weakened considerably, as outflow from
earlier storms seems to have increased mean layer CIN enough to
weaken them. They should clear the far southeast counties in the
next hour or so.

There is another shot at showers and thunderstorms developing this
evening to our west, moving through the area mainly later this
evening and overnight. This is in conjunction with a low level jet
nose trying to linger over the area. Cams are showing this trend,
so kept pops in the likely category for this period. At this time,
would be expecting mainly gusty winds, small hail and heavy
rainfall with any stronger storms.

Sunday and Sunday night... Forecast confidence is medium.

Gradual cold air advection occurs during this time, helping bring
in some cooler and less humid conditions to the area. May still
see clouds linger during this period, with convection to our
south. Winds off the lake should keep lakeshore areas a little
cooler than inland. Highs should be in the upper 70s inland, lower
to middle 70s lakeside. Lows should drop into the 60s Sunday
night.

Long term
Monday through Thursday... Forecast confidence is high.

A very quiet period is expected with high pressure dominating the
region for much of the week. There will be periods during the
early part of the week where a few showers and weak storms might
be possible, with a few shortwaves possibly moving through the
region. Given the fairly dry environment much of the week, it
should remain dry. Temperatures will be primarily in the upper 70s
to mid 80s throughout the week, with much less humidity than what
the region has felt the past several days.

Friday and Saturday... Forecast confidence is medium.

We should see a break with the high pressure system by Friday
into Saturday, as lower pressure pushes in. This gives us chances
for showers and storms. However, there remains a bit of
uncertainty regarding how it will unfold, as it is a bit to far
out to tell. Friday may actually remain mostly dry, before low
pressure fully moves in Saturday.

Aviation(21z TAF updates)
Showers and storms will move out of the eastern terminals in the
next hour or two. Cloud to ground lightning and gusty winds are
the main hazards here. Another round of showers and storms may
move east across the area later this evening and overnight. Gusty
winds, small hail and heavy rainfall would be the main concerns
during this time. May see MVFR ifr ceilings and visibility values
at times with any storms.

Otherwise, north to northeast winds should linger tonight into
Sunday night. Ceilings and visibility values should remainVFR
category during this period.

Marine
Showers and storms will move across the lake over the next few
hours, with severe storms possible in far southern portions of the
open waters. Damaging winds and large hail are possible in this
area. Another round of thunderstorms may move across southern
portions of the lake overnight. Gusty winds and small hail may
occur.

Otherwise, north to northeast winds are expected to linger across
the lake tonight into early next week, with high pressure building
into the northern plains. Waves may build over the southern
portions of the lake Monday into Monday night.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Tonight Sunday and aviation marine... Wood
Sunday night through Saturday... Ark


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 24 mi54 min SE 1.9 G 1.9 70°F 1013.5 hPa (+3.7)
45187 26 mi34 min 65°F 56°F2 ft
45186 27 mi34 min E 3.9 G 7.8 65°F 62°F3 ft
MLWW3 - Milwaukee, WI 41 mi34 min SSE 14 G 16 64°F
45174 42 mi24 min NE 5.8 G 9.7 66°F4 ft1010.8 hPa
45013 46 mi54 min S 12 G 16 59°F 53°F2 ft1011.4 hPa

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington Municipal Airport, WI12 mi79 minN 010.00 miLight Rain67°F67°F100%1014.2 hPa
Kenosha, Kenosha Regional Airport, WI18 mi61 minN 03.00 miLight Rain Fog/Mist73°F71°F94%1013.9 hPa
Chicago/Waukegan Regional Airport, IL22 mi59 minVar 36.00 miThunderstorm Light Rain Fog/Mist72°F69°F91%1013.3 hPa

Wind History from BUU (wind in knots)
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Last 24hrS7S6S4S6S7S7S5CalmNE14
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S3S4S4S8SW10S10SW11
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SW14N11
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NE6N7
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1 day agoSW9SW8CalmCalmCalmCalmS4SW6SW5SW8W8
G17
SW3N6SW9S13
G19
CalmCalmCalmS3SW10SW8SW8SW9S6
2 days agoSE8CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3NW5CalmCalmSE6CalmS13
G19
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G14
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G18
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SW12
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G14

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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wmap_A
GOES Local Image of Midwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (18,4,5,8)
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Ground Weather Radar Station Milwaukee, WI
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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.