Friday, March24, 2017 L-36.com


Marine Weather and Tides
Marinette, WI

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:44AMSunset 7:11PM Friday March 24, 2017 6:55 PM CDT (23:55 UTC) Moonrise 4:57AMMoonset 3:23PM Illumination 7% Phase: Waning Crescent; Moon at 27 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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LMZ521 Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 346 Pm Cdt Fri Mar 24 2017
.small craft advisory in effect through late Saturday night...
Tonight..NE wind 15 to 25 kts. Waves 3 to 5 ft on the bay, to 4 to 6 ft on the lake. Light rain in the evening, then a chance of light freezing rain and light rain after midnight.
Saturday..NE wind to 30 kts with gale force gusts to around 35 kts. Waves 3 to 5 ft on the bay, to 4 to 7 ft on the lake. A chance of light rain and light freezing rain.
Saturday night..NE wind 15 to 25 kts. Waves 4 to 7 ft. Light rain.
Sunday..NE wind 10 to 15 kts. Waves 3 to 5 ft. Light rain likely. A small craft advisory may be needed. Wave heights are for ice free areas.
LMZ521 Expires:201703250515;;022458 FZUS53 KGRB 242046 NSHGRB NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE GREEN BAY WI 346 PM CDT FRI MAR 24 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN LMZ521-522-541>543-250515-

7 Day Forecast for Marine Location Near Marinette, WI
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location: 45.09, -87.58     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 241938
afdgrb
area forecast discussion
national weather service green bay wi
238 pm cdt Fri mar 24 2017
forecast discussion for routine afternoon forecast issuance

Short term Tonight and Saturday
issued at 238 pm cdt Fri mar 24 2017
the latest rap analysis and satellite/radar imagery show an occluded
low pressure system located over the panhandle of oklahoma early
this afternoon and a shortwave trough moving east over northern
ontario. An elongated area of mid-level convergence is occurring
between these two features, which is contributing to the band of
rain currently moving across central and northeast wi. Behind the
shortwave, high pressure is building southeast over northern
manitoba, which will drive the band of rain southward towards
central wi through the rest of the afternoon. Forecast concerns
mainly revolve around precip trends over the next 24 hours.

Tonight... Low pressure will slowly move east across the central
plains while a strong high pressure system builds southward into
northern wi. With a stronger push of dry air from the north, the
band of precipitation will get shoved southward through the night,
resulting in the most widespread rain occurring over central and
east-central wi. North-central wi could see some rain persist on the
northern edge of the band early this evening before it pulls out.

But by exiting the north early in the night, this will negate
another chance of freezing rain. Low temps ranging from the upper
20s in the north to the middle 30s in the south.

Saturday... The low pressure will continue to migrate east into the
central mississippi valley. But as the high retreats, rain will
gradually return northwest from east-central wi in the morning, back
into central and northeast wi in the afternoon. North-central wi
will likely escape the rain, being located in closer proximity to
the dry canadian high to the north. With the rain and gusty
northeast winds, eastern wi will mostly likely be a few degrees
colder than locations over central and north-central wi.

Long term Saturday night through Friday
issued at 238 pm cdt Fri mar 24 2017
long term period starts out active with on-going chances for rain
and freezing pcpn as a surface and upper level low continue the
slow moving journey from missouri to southern lake michigan
through the weekend. A quiet period looks more likely for the
middle of next week.

Pops expand back into northern wisconsin Saturday night as the
low moves closer to wisconsin. Guidance would suggest boundary
layer temperatures falling below freezing in roughly the
northern half of the forecast area. An elevated warm layer is
evident during this time as well. This introduces freezing rain,
and perhaps some sleet, into the forecast through Sunday morning.

If precip timing and cooling temps lined up right, this could
result in ice accumulations around a tenth of an inch north of a
line from about merrill to antigo to wausaukee. At this time
confidence is not high as this once again depends on the exact
timing of when the pcpn moves north and if temperatures get cold
enough. Will let later shift re-evaluate the potential. Any
freezing pcpn would switch back to rain by mid-morning Sunday.

The low moves east of wisconsin Sunday night into Monday morning.

Another rough of freezing rain/sleet is possible in the far north
Sunday night, but with the bulk of the moisture and energy now to
the east wouldn't expect more than a hundredth or two of icing to
occur in isolated areas.

Models in good agreement that the system moving out of the
southwest Monday into Tuesday will stay well south of wisconsin.

By this time there may still be a hint of wrap around precip from
the weekend system through Monday morning. Gfs, ecmwf, and
canadian models all suggest a surface high and mid and upper
level ridge building in Monday afternoon, and will keep the area
dry Tuesday and Wednesday. High temperatures also get a boost
during this time.

For Thursday and Friday, another system moves out of the southwest
similar to the one currently affecting the upper midwest. However,
models vary significantly on placement of the low and its main
features. If southern solution pans out wouldn't expect much pcpn
in the forecast area during this time. Northern solution could
result in a similar event with daytime rain and overnight mixed
precip. Kept with the blended model solution for now until these
details are able to get sorted out a bit better.

Rain and clouds will keep high temperatures within a few degrees
of seasonal normals through the weekend, in the upper 30s and
lower 40s. Highs should warm into the upper 40s and lower 50s next
week.

Aviation For 18z TAF issuance
issued at 1129 am cdt Fri mar 24 2017
poor flying conditions are expected over the next 24 hours. The
band of precipitation will gradually slide south this afternoon
and evening. Expect lifr/ifr cigs/vsbys within the band of rain.

Northeast winds will strengthen late this afternoon through
tomorrow morning and become gusty.

Grb watches/warnings/advisories
None.

Short term... ..Mpc
long term... ... Klb
aviation... ... .Mpc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MN4 - 9087088 - Menominee, MI 1 mi38 min NNE 5.1 G 5.1 33°F 1019.3 hPa
CBRW3 - Chambers Island, WI 14 mi76 min NNE 4.1 G 5.1 33°F 1019 hPa
SYWW3 - Yacht Works Sister Bay WI 26 mi65 min NNE 7 G 8 35°F
NPDW3 - Northport Pier at Death's Door WI 35 mi36 min Calm G 9.9 34°F 1020.3 hPa
KWNW3 - 9087069- Kewaunee, WI 43 mi38 min NNE 8.9 G 14 35°F 1018.2 hPa

Wind History for Menominee, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sturgeon Bay, WI21 mi60 minNNE 55.00 miLight Rain Fog/Mist35°F34°F96%1022.1 hPa

Wind History from GRB (wind in knots)
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Last 24hrS9S10S11SE11S5S5CalmCalmN4CalmCalmCalmN4NE5NE3N5N9N10NE10NE12NE16
G21
NE12NE11NE13
1 day agoS8SE8SE7SE6SE5SE4SE5SE5S4CalmS4S4S3S3S9S8S16S14SE16S15S12SE11SE14SE14
2 days agoN15N9N18N12N12N13N8N5N6N6N8N8N7N6N8NE11N34Calm3SE4CalmSE5S6

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 (19,4,5,8)
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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.