Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Sister Bay, 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 6:48AMSunset 7:09PM Saturday March 23, 2019 9:36 AM CDT (14:36 UTC) Moonrise 10:27PMMoonset 8:31AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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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LMZ541 Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 344 Am Cdt Sat Mar 23 2019
Today..SW wind 10 to 15 kts. Waves 2 to 4 ft. Sunny.
Tonight..SW wind 10 to 15 kts. Waves 2 to 4 ft. Clear.
Sunday..NW wind 10 to 15 kts veering N 10 to 20 kts mid-day, then increasing to to 30 kts early in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft in the afternoon. Mostly cloudy. A small craft advisory may be needed.
Sunday night..N wind to 30 kts decreasing to 10 to 20 kts after midnight. Waves 4 to 7 ft. Mostly clear.
LMZ541 Expires:201903231615;;787466 FZUS53 KGRB 230844 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 344 AM CDT Sat Mar 23 2019 For waters within five nautical miles of shore on Lake Michigan LMZ541>543-231615-


7 Day Forecast for Marine Location Near Sister Bay, WI
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location: 45.19, -87.12     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 231058
afdgrb
area forecast discussion
national weather service green bay wi
558 am cdt Sat mar 23 2019
updated aviation portion for 12z TAF issuance

Short term Today... Tonight... And Sunday
issued at 322 am cdt Sat mar 23 2019
high pressure will provide dry weather to the region today and
tonight as it drifts across the western great lakes region. After
a cold start this morning, daytime highs are expected to rise to
around 50 during the afternoon hours under sunny skies. Clouds
will increase late tonight on the backside of the high with warmer
overnight temperatures ranging from the middle to upper 20s across
the north to around 30 across the south.

A cold front will sink south late tonight and into Sunday morning,
bringing a colder airmass to the western great lakes region.

Current guidance brings the front through quicker than previous
runs, which will keep high temperatures several degrees cooler
than previous forecasts. Highs on Sunday will mainly be in the
morning, ranging from the 30s across the north with 40s across the
south as temperatures fall during the afternoon hours on brisk
northeasterly winds. The front itself will pack a punch
temperature-wise, as 850 mb temperatures plummet 10 degrees,
however with regards to precipitation it will be very lacking. The
main mid level energy will pass well to our south across illinois
associated with another low pressure system, with very little in
the way of additional forcing across our area on Sunday. Model
soundings also show very little in the way of moisture, with only
a few thousand feet of moisture available as the front tracks
through the region. Therefore the main precipitation mode from
this system is expected to be drizzle, or freezing drizzle across
the north late tonight or early Sunday morning, with some spits of
snow possible later Sunday afternoon across the north behind the
weak front. The upside to the lack of moisture is this system will
not exacerbate any current flooding that is occurring on area
rivers.

Long term Sunday night through Friday
issued at 322 am cdt Sat mar 23 2019
dry conditions are expected to continue through the middle of next
week, which will help reduce the risk of serious flooding across
northern wisconsin as the snow pack continues to melt. However,
ice jams could still cause significant issues with rising river
levels that may pose a serious risk of flooding.

High pressure will move into the region Sunday night, then
across the region Monday and Monday night, then east of the
state on Tuesday. Models over the last two night have depicted
elevated convection on the back side of this high pressure system
Tuesday into Tuesday night. Current thinking is any convection
should stay west of the forecast area.

On Wednesday, conditions should become blustery with increasing
moist southerly winds ahead of a cold front approaching the state
from the west. Models depicting precipitation Wednesday into
Wednesday night. Will have a chance of showers to account for
the moist southerly flow. On Thursday, the ECMWF model is quicker
in bringing the cold front across the area compared to the gfs
and canadian model which may not occur until Friday. Will need
to let later model solutions trend toward one solution on timing.

A second system is expected to move across the area Friday night
into next Saturday. Yesterday, this system had the potential for a
decent rainfall. The model runs tonight have shifted considerably
south and east than last night. This shift in the storm track
tonight would bring more snow, or rain snow mix compared to last
night. Will need to continue to monitor this system since river
levels are running high due to the recent snow melt and ice jams.

Any significant precipitation would bring an increased of flooding
again next weekend into early april.

Aviation For 12z TAF issuance
issued at 558 am cdt Sat mar 23 2019
vfr conditions and good flying weather is expected during the taf
period as high pressure stays in control of the western great
lakes. An approaching low pressure system will bring increasing
clouds to the TAF sites late tonight.

Hydrology
Issued at 322 am cdt Sat mar 23 2019
favorable conditions for a slow snowmelt across the north will
continue into early next week. The potential exists for a
significant precipitation producing system to affect the area
late next week or during the following weekend. But the large
scale changes occurring during that time will result in low
predictability, so anticipate the medium range models will
continue to exhibit considerable day to day changes in the
forecast track and intensity of the system.

Grb watches warnings advisories
None.

Short term... ..Kurimski
long term... ... Eckberg
aviation... ... .Kurimski
hydrology... ... Kurimski


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NPDW3 - Northport Pier at Death's Door WI 10 mi57 min SW 1.9 G 5.1 29°F 1025.4 hPa
CBRW3 - Chambers Island, WI 13 mi57 min SSW 6 G 7 29°F 1024.7 hPa
MN4 - 9087088 - Menominee, MI 26 mi43 min 29°F 35°F1025.1 hPa2°F
FPTM4 - Fairport, MI 38 mi57 min WSW 11 G 13 29°F 1024.7 hPa

Wind History for Menominee, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Menominee - Marinette Twin County Airport, MI27 mi41 minSW 710.00 miFair28°F23°F81%1028 hPa

Wind History from MNM (wind in knots)
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Last 24hrN11
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N9--SE6SE5E4E5CalmCalmCalmCalmCalmCalmW3CalmCalmCalmSW7
1 day agoNW7NW6W7W6W9
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W8--Calm--N3N4N6CalmNW3NW7N10N14
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2 days agoSW8SW8SW9SW8SW7S9S8CalmE3CalmE3--N4--NE11N7N6N7--N4CalmNW3CalmNW5

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Green Bay, WI (10,2,3,4)
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Ground Weather Radar Station Green Bay, 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.