Saturday, May25, 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 8:17PM Saturday May 25, 2019 6:32 AM CDT (11:32 UTC) Moonrise 1:16AMMoonset 11:22AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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 Sat May 25 2019
.dense fog advisory in effect until 1 am cdt Sunday...
Today..Southwest wind 10 to 15 knots. Patchy dense fog through the day. Slight chance of showers in the afternoon. Slight chance of Thunderstorms late in the afternoon. Waves 1 to 2 feet.
Tonight..Southwest wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight, then veering north early in the morning. Patchy dense fog through the night. Chance of showers and Thunderstorms through the night. Waves around 1 foot.
Sunday..North wind 5 to 10 knots. Partly Sunny. Waves around 1 foot.
Sunday night..Northeast wind 5 to 10 knots backing north late in the evening, then becoming north 5 to 10 knots after midnight easing to 5 knots early in the morning. Partly cloudy. Waves around 1 foot.
LMZ646 Expires:201905251600;;430049 FZUS53 KMKX 251006 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 506 AM CDT Sat May 25 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-251600-


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 251025
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
525 am cdt Sat may 25 2019

Update Patchy fog has developed with the better dew points and
lighter winds in place. Hrrr still suggests that some better
parametersmay converge for some tsra development towards the
wi il border during the afternoon.

Pc

Aviation(12z tafs) MostlyVFR period though some patchy fog
here and there in the more moist airmass and lighter winds of the
morning. Surface front will gradually shift to our south tonight
and high pressure should take hold for Sunday. Still can't rule
out a few tsra developing this afternoon into this evening towards
the wi il border.

Pc

Prev discussion (issued 325 am cdt Sat may 25 2019)
discussion...

today through Sunday - confidence... Medium
lingering elevated convection will persist for a time this morning.

This activity will remain below severe levels and produce some brief
heavy rains. The threat for flash flooding has diminished rapidly so
the watch has been cancelled early. The main front will hold off
to our northwest today with a southwest wind in place. The progs
show weakening convergence along the front as the winds trend more
wsw with time. Will keep some pops for the southern CWA as this
should be where the front and better dynamics coincide for much of
the weekend, though models suggest best chances will be to our
south. With front sliding to our south tonight into Sunday, high
pressure takes hold and turns winds more north and northeast.

Again meso models and synoptic scale models suggest best focus for
precipitation this period would be closer to the wi il border and
areas south. Guid temps look ok.

Monday through Wednesday - confidence... Medium
another low with an associated warm frontal boundary will bring a
renewed threat for stronger convection. Initial surge may be
elevated in nature on Monday with better surface based CAPE to our
south. The GFS shows the front may stay to our south for a time
as shortwave energy rides through on Monday. Better dynamics
arrive later Tuesday into Wednesday. This is when the front may
get enough push to the north for some surfaced base activity. A
blend of the GFS and ECMWF keeps the front south on Monday but
then suggests a northward push for Tuesday. Temps should be cooler
on Monday with warm front likely staying to our south. Warmer
temps more likely on Tuesday as front lifts north and low level
flow becomes more southerly. Mid level wave rides through Tuesday
night into Wednesday. So threat of storms likely to continue into
at least early Wednesday.

Thursday and Friday - confidence... Medium
high pressure should settle in for Thursday, and depending how
quick a return flow gets going we could see some precip return for
later Friday into Friday night.

Aviation(09z tafs)... MostlyVFR period though still some
showers thunderstorms moving through southern wi early this
morning. Some patchy MVFR CIGS and vsbys in some fog here and
there early on. Front will gradually shift to our south tonight
and high pressure should take hold for Sunday. Still can't rule
out a shower or storm developing this afternoon into this evening
but better chances look to be to our south.

Marine... Will keep the dense fog advisory in place for now and
let morning webcams drive how any headline modifications, if any,
are made. Shower thunderstorm activity will gradually diminish
this morning across the northern and central portions of the lake.

Mkx watches warnings advisories
Wi... None.

Lm... Dense fog advisory until 1 am cdt Sunday for lmz080-643>646-669-
671-673-675-777-779-870-872-874-876-878.

Dense fog advisory until 7 pm cdt this evening for lmz261-362-
364-366-563-565-567-868.

Today tonight and aviation marine... Collar
Sunday through Friday... Collar


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45187 4 mi33 min WSW 7.8 G 12 62°F 48°F1 ft
KNSW3 - Kenosha, WI 5 mi33 min E 4.1 G 5.1 53°F 1010.5 hPa (+2.0)
45186 11 mi33 min SSW 9.7 G 16 64°F 51°F1 ft
WHRI2 - Waukegan Harbor, IL 11 mi53 min WSW 14 G 16 72°F
45174 28 mi23 min SW 5.8 G 7.8 62°F 1 ft1011.1 hPa62°F
MLWW3 - Milwaukee, WI 36 mi23 min Calm G 1 53°F
FSTI2 39 mi93 min SSW 12 73°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi23 min SSW 12 G 14 47°F 40°F1011.3 hPa47°F
CHII2 - Chicago, IL 44 mi33 min WSW 15 G 19
CNII2 47 mi18 min W 2.9 G 12 73°F 64°F

Wind History for Calumet Harbor, IL
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Last
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N10
G15
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SE6
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kenosha, Kenosha Regional Airport, WI7 mi40 minWSW 910.00 miFair69°F64°F87%1010.2 hPa
Chicago/Waukegan Regional Airport, IL7 mi38 minSW 1010.00 miFair70°F61°F73%1009.9 hPa
Racine, Batten International Airport, WI17 mi40 minN 02.50 miFog/Mist58°F55°F93%1010.5 hPa

Wind History from ENW (wind in knots)
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Last 24hrCalmSE6SE9SE9SE8CalmSE15
G21
E10E11SE8SE12SE8SE7E6E3E3E6E3S4S4S3W8SW7SW9
1 day agoW7W12W17
G23
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W11W6W4N3E7E5CalmCalmE3E3N4Calm
2 days agoE7SE8E7SE9SE11SE9SE11S15
G27
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G35
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G26
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SW7NW4SW4SW11SW8W13
G17
W9W7W9W9

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    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 (7,2,3,4)
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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.