Monday, September25, 2017 L-36.com


Marine Weather and Tides
Two Rivers, 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 6:40AMSunset 6:44PM Sunday September 24, 2017 11:15 PM CDT (04:15 UTC) Moonrise 11:03AMMoonset 9:26PM Illumination 21% Phase: Waxing Crescent; Moon at 4 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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LMZ543 Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 930 Pm Cdt Sun Sep 24 2017
Rest of tonight..S wind 10 to 15 kts. Waves 2 ft or less. Patchy fog after midnight.
Monday..S wind 10 to 15 kts. Waves 1 to 3 ft. Patchy fog in the morning.
Monday night..S wind 5 to 10 kts. Waves 2 ft or less. Mostly clear.
Tuesday..SW wind 5 to 10 kts. Waves 2 ft or less. A chance of showers and Thunderstorms in the afternoon.
LMZ543 Expires:201709251000;;888224 FZUS53 KGRB 250230 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 930 PM CDT Sun Sep 24 2017 For waters within five nautical miles of shore on Lake Michigan LMZ541>543-251000-

7 Day Forecast for Marine Location Near Two Rivers, WI
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location: 44.15, -87.56     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 242327
afdgrb
area forecast discussion
national weather service green bay wi
627 pm cdt Sun sep 24 2017
updated aviation portion for 00z TAF issuance

Short term Tonight and Monday
issued at 215 pm cdt Sun sep 24 2017
the main forecast concern switches from heat humidity to timing of
precipitation chances on Monday. For those who enjoy the heat, you
have one more day before reality returns to northeast wi autumnal
weather!
the 19z msas surface analysis showed high pressure situated over
the eastern great lakes. A quasi-stationary front extended from
western ontario south-southwest through western mn into the
central plains. A prevailing southerly wind between these two
weather features continued to draw very warm humid air into wi
with another day of record or near record high temperatures.

Subtle changes begin to occur tonight as the upper ridge over the
eastern CONUS slides a bit eastward, thereby allowing the quasi-
stationary front over the upper ms valley to edge toward the wi
border by 12z Monday. Central wi will start to see some increase
in high clouds after midnight as showers few thunderstorms
continue to fire along and behind the front. Otherwise, another
mild muggy night in store across the forecast area with patchy fog
toward daybreak. Min temperatures to be in the lower 60s north,
middle 60s south.

The frontal boundary is forecast to slowly move across western wi
on Monday, bringing more clouds to central wi along with an
increasing chance for showers thunderstorms in the afternoon.

Eastern wi should remain dry during the daylight hours, although
mid high clouds will be on the increase. Do not anticipate any
severe storms as both forcing and shear are weak. Have ignored the
gfs which sends measurable precipitation all the way to the lake
on Monday. This front is a slow-mover and prefer to relegate
precipitation west of a line from imt-isw. Look for a wider range
in temperatures on Monday with readings in the upper 70s to lower
80s north-central along lake mi, to the middle to upper 80s across
east-central wi. A few record highs could be approached in the
east if the thicker clouds can stay away long enough.

Long term Monday night through Sunday
issued at 215 pm cdt Sun sep 24 2017
blocky ridge over the eastern CONUS gradually flattens as wave
ejects from western trof and moves across northern great lakes.

This begins (temporary) transition to wnw flow for second half of
the week. The warm spell will come to an end Tuesday as cold
front associated with wave moves across wisconsin. The front will
bring scattered showers and storms.

High pressure will briefly dominate Wednesday into Thursday am
before next shortwave trof and cold front approaches. The front
will bring a chance of showers to much of the area late Thursday
afternoon or Thursday night. Colder temps to follow for late week
and early in the weekend. 24 12z ECMWF has backed off a bit from
previous run on amount of cold and is now a bit closer to gfs.

Regardless, temps by end of week will be 30 deg colder than this
weekend. Temps cold enough for lake-enhanced showers in cyclonic
flow in the north.

Aviation For 00z TAF issuance
issued at 627 pm cdt Sun sep 24 2017
vfr conditions to prevail through the TAF period. The only
exception would be some patchy late night fog which could brief
lower vsbys into the MVFR range. Have kept the llws potential for
the rhi, auw and CWA taf sites tonight as southwest winds just
above the surface reach 30 to 35 knots. Mid and high clouds are
forecast to increase over the region on Monday with a chance for
showers thunderstorms reaching central wi Monday afternoon. Placed
a prob30 group in this set of tafs to account for this.

Grb watches warnings advisories
None.

Short term... ..Ak
long term... ... Jkl
aviation... ... .Kurimski


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KWNW3 - 9087069- Kewaunee, WI 22 mi57 min S 4.1 G 5.1 65°F 1015.1 hPa
SGNW3 - Sheboygan, WI 29 mi75 min S 8.9 G 9.9 74°F 1015.7 hPa (+0.0)64°F
45014 46 mi105 min S 12 G 16 74°F 70°F1015.1 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Manitowoc, Manitowoc County Airport, WI6 mi19 minS 510.00 miFair70°F61°F73%1017.2 hPa

Wind History from MTW (wind in knots)
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Last 24hrE3--CalmS4S5S5E4SE3CalmS6S5E6SE6SE7SE7SE10SE9S9S8--S7S3S4S5
1 day agoS4S7S5SW6SW3SW3SE3SE3CalmSE33E5SE8SE8S9S11S11S10S9S5SE4CalmCalmCalm
2 days agoCalmCalmCalmS3CalmSE4CalmCalmS4S5--S6S9S10S11S13S13S12E7E5SE3S7S9S7

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Green Bay, WI (0,6,7,8)
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Ground Weather Radar Station Green Bay, WI
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weather_mapweather_map weather_map

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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.