Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Pleasant Prairie, WI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:18AMSunset 8:18PM Sunday May 26, 2019 4:57 AM CDT (09:57 UTC) Moonrise 1:48AMMoonset 12:20PM Illumination 51% Phase: Third Quarter Moon; Moon at 22 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- 306 Am Cdt Sun May 26 2019
Early this morning..West wind 5 to 10 knots veering north early in the morning. Mostly cloudy. Waves around 1 foot.
Today..North wind 5 to 10 knots veering northeast in the afternoon. Slight chance of showers in the morning. Waves around 1 foot.
Tonight..Northeast wind 5 to 10 knots backing north late in the evening, then becoming north 5 to 10 knots after midnight. Partly cloudy. Waves around 1 foot.
Monday..Northeast wind 5 to 10 knots becoming east 10 to 15 knots late in the afternoon. Chance of showers and Thunderstorms through the day. Waves 1 to 2 feet.
Monday night..East wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then veering southeast after midnight veering south early in the morning. Rain showers likely and a chance of Thunderstorms. Waves 1 to 2 feet.
LMZ646 Expires:201905262100;;478136 FZUS53 KMKX 260806 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 306 AM CDT Sun May 26 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-262100-


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 260806
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
306 am cdt Sun may 26 2019

Short term
Today and tonight - confidence... Medium
drier air working in behind frontal boundary. This trend will
continue today with dew points dropping into the upper 40s to
lower 50s. Surface high will bring subsidence to the area as well
with focus for precipitation to our south. Will have CWA dry with
perhaps just a very slight chance in our extreme south for a time
this morning. Overnight the high will largely dominate with the
potential for some showers nudging into the far southwest portion
of the CWA late in the night.

Long term
Monday and Monday night... Forecast confidence low to moderate...

by daybreak Monday morning, convection should be ongoing to our
west within a broad zone of low and mid level warm air advection.

This activity should propagate east with time, as the 850 mb
frontal zone and associated lift pushes into the forecast area.

While the elevated front will lift through the area, guidance
generally keeps the surface front around the state line through
the day Monday. There will be a conditional threat for severe
thunderstorms Monday if enough clearing heating is able to take
place to generate sufficient surface based instability within the
vicinity of the surface front. Hail, wind, and a tornado or two
would be possible with this activity, given storm motions parallel
to the warm front. Much of this will be dependent on how
convection evolves to our west earlier in the day, so overall
confidence is low.

Tuesday and Tuesday night... Forecast confidence low...

a bit of shortwave ridging may keep things relatively quiet Tuesday
morning. As the mid level low begins to move into nebraska on
Tuesday afternoon, convection is expected to develop across
southern minnesota and much of iowa. This is then expected to push
into southern wisconsin Tuesday evening into Tuesday night.

Plenty of shear will be in place to sustain convection, with
instability again serving as the wildcard. If the surface warm
front is able to mix north into the forecast area, then surface
based severe thunderstorms will be possible given a considerable
amount of warm sector buoyancy, with an attendant wind, hail, and
tornado risk. On the other hand, should the front remain south,
then convection would be expected to remain elevated, with perhaps
just a few instances of large hail.

Along with the severe weather risk over the next few days, hydro
will also be a concern. Many rivers are already elevated, with
soils saturated in a lot of locations. River flooding will likely
become more widespread as the week GOES on, along with the
potential for some areal and or flash flooding.

Wednesday and Thursday... Forecast confidence moderate...

the upper level low will slowly migrate across the area Wednesday
into Thursday, with a continued chance for showers and a few
thunderstorms. Severe weather looks unlikely at this time given an
increasingly open and positively tilted nature to the low. By
Thursday afternoon, rain may actually end for a short time as
slightly drier air builds in from the northwest.

Friday into next weekend... Forecast confidence low...

overall, the active pattern looks to continue into next weekend,
though extended guidance is in poor agreement with the
particulars on timing and coverage. Temperatures for now look to
be around average for the end of may, with highs in the 70s and
lows in the 50s.

Aviation(09z tafs) Vfr conditions this period. Still some broken
stratocu here and there with cirrus canopy blowing into the area
from convection to our south. As a front works through winds are
shifting to the northwest and will eventually turn onshore today.

High pressure will dominate into tonight with a light wind regime.

Marine A rather light wind regime will be in place today through
tonight as high pressure builds across the area. Northeast to east
winds will pick up a bit for Monday and Monday night but gusts are
proggd to be well below gales and will probably not necessitate a
small craft advisory either for the nearshore waters.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Today tonight and aviation marine... Collar
Monday through Saturday... Boxell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45187 4 mi38 min N 1.9 G 3.9 54°F 49°F
KNSW3 - Kenosha, WI 5 mi58 min N 9.9 G 12 64°F 1014.9 hPa (+0.7)
45186 11 mi38 min NE 3.9 G 3.9 58°F 50°F
WHRI2 - Waukegan Harbor, IL 11 mi78 min W 5.1 G 6 69°F
45174 28 mi28 min NW 5.8 G 5.8 59°F 1014.5 hPa59°F
FSTI2 39 mi118 min SW 5.1 72°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi28 min N 7.8 G 9.7 46°F 40°F1015.5 hPa44°F
CHII2 - Chicago, IL 44 mi38 min W 9.9 G 11
CNII2 47 mi28 min W 5.1 G 8 71°F 60°F

Wind History for Calumet Harbor, IL
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Last
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SW8
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NE4
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kenosha, Kenosha Regional Airport, WI7 mi65 minN 510.00 miOvercast67°F57°F73%1014.4 hPa
Chicago/Waukegan Regional Airport, IL7 mi63 minN 010.00 miMostly Cloudy66°F61°F84%1013.8 hPa
Racine, Batten International Airport, WI17 mi65 minN 910.00 miMostly Cloudy65°F50°F59%1014.7 hPa

Wind History from ENW (wind in knots)
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Last 24hrSW7SW9SW10SW11SW10SW15
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SW14SW12W12
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W14SW10SW7SW4SW8W5SW7W5N5N5
1 day agoN4CalmCalmSE6SE9SE9SE8CalmSE15
G21
E10E11SE8SE12SE8SE7E6E3E3E6E3S4S4S3W8
2 days agoW9W9W7W12W17
G23
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G28
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G26
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W11W6W4N3E7E5CalmCalmE3E3

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 GreatLakes    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (5,6,7,8)
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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.