Friday, September20, 2019 L-36.com


Marine Weather and Tides
Ephraim, WI

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:35AMSunset 6:55PM Friday September 20, 2019 4:31 AM CDT (09:31 UTC) Moonrise 10:24PMMoonset 12:53PM Illumination 63% 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
    EDIT      (on/off)   Help
LMZ541 Expires:201909201630;;066710 Fzus53 Kgrb 200916 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 416 Am Cdt Fri Sep 20 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-541>543-201630- 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- 416 Am Cdt Fri Sep 20 2019
.dense fog advisory in effect until 10 am cdt this morning...
Today..SE wind 5 to 10 kts. Waves 2 ft or less. Widespread dense fog in the morning, then patchy fog in the afternoon.
Tonight..S wind 5 to 10 kts. Waves 2 ft or less. Patchy fog. A slight chance of showers in the evening, mainly south of algoma.
Saturday..S wind 10 to 15 kts, increasing to 15 to 25 kts by afternoon. Waves building to 2 to 4 ft on the bay, and to 4 to 7 ft on the lake. Showers likely and a chance of Thunderstorms. Patchy fog. A small craft advisory may be needed.
Saturday night..SW wind 15 to 25 kts decreasing to 10 to 15 kts after midnight. Waves 4 to 7 ft on the lake, and waves subsiding to 1 to 3 ft on the bay. Showers likely and a chance of Thunderstorms. Patchy fog.
LMZ541


7 Day Forecast for Marine Location Near Ephraim, WI
   Hourly   EDIT   Help
location: 45.16, -87.18     debug


Area Discussion for - Green Bay, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrb 200900
afdgrb
area forecast discussion
national weather service green bay wi
400 am cdt Fri sep 20 2019
updated headline coding is below. Rest of discussion to follow a
little later.

Discussion
Issued at 400 am cdt Fri sep 20 2019
dense fog advisory will continue unchanged with the morning
forecast issuance. ASOS awos sites were reporting widespread vsbys
of 1 4sm on the 400 am obs. Webcams were not quite as ominous
looking. But expected the fog to continue to thicken since there's
still 2 1 2 hours until sunrise. In addition, the worst
conditions in terms of visibility for travel typically occur for
an hour or so after sunrise. Complete forecast discussion will
follow a little later this morning.

Aviation For 06z TAF issuance
issued at 1020 pm cdt Thu sep 19 2019
an upper level disturbance and associated showers will exit far
northeast wi at the beginning of the TAF period. Otherwise it
will be difficult to pinpoint precipitation trends in an air
mass with plenty of moisture, but little forcing. Will not include
any mention of precipitation in the tafs at this time.

Models show fog developing overnight through late Friday morning.

Expect lifr vlifr conditions at rhi auw cwa, and ifr lifr at
grb atw mtw. Expect the foggy conditions to improve between 14z-
16z fri, with any lingering low stratus layer gradually rising
during the daytime period.

Grb watches warnings advisories
Dense fog advisory until 10 am cdt this morning for wiz005-
010>013-018>022-030-031-035>040-045-048>050-073-074.

Aviation... ... .Kieckbusch
discussion... ..Skowronski


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CBRW3 - Chambers Island, WI 10 mi51 min Calm G 1 61°F
NPDW3 - Northport Pier at Death's Door WI 14 mi51 min Calm G 1 64°F 1019.3 hPa
MN4 - 9087088 - Menominee, MI 22 mi49 min WNW 1.9 G 2.9 63°F 65°F1019 hPa62°F
FPTM4 - Fairport, MI 42 mi51 min NNW 1.9 G 5.1 64°F 1019.6 hPa
45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. 43 mi31 min E 3.9 G 7.8 64°F 63°F1019.9 hPa (+0.6)63°F

Wind History for Menominee, MI
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last
24hr
NE9
E17
SE16
SE13
SE16
SE15
S13
G18
W9
G14
SW11
G14
SE4
G7
S7
S6
S6
G9
S6
SE9
SE9
SE11
SW4
--
--
SW3
N4
--
NW3
1 day
ago
S8
G11
S8
S7
S6
G12
S6
G9
S8
G12
S9
G13
S11
G16
S11
G14
SE15
SE18
G23
SE20
S11
G16
S9
G13
S11
G14
S8
G11
S6
G10
S10
G13
S9
G12
S8
G12
S12
G17
S9
G13
S13
G19
N6
G14
2 days
ago
E4
NE4
NE4
S4
S6
S7
S6
G9
SE7
SE9
SE6
SE4
SE7
SE16
S8
S8
G11
SE8
G11
S7
G10
SE9
S8
G11
S7
S12
G15
S8
G11
S8
S6
G9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Menominee - Marinette Twin County Airport, MI24 mi35 minNNW 30.50 miFog59°F59°F100%1019.5 hPa
Door County Cherryland Airport, WI24 mi35 minN 00.50 miFog60°F60°F100%1019.5 hPa

Link to 5 minute data for KMNM

Wind History from MNM (wind in knots)
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
Last 24hrE7SE7S4SE8S6S9SW10
G17
--65SW4CalmS5S7S6S7SW3CalmCalmCalmW3CalmCalmN3
1 day agoCalmS4S3SW5SW9S11SW12
G16
S12SW13
G20
SE13S14
G20
S13
G20
S10
G17
S10S5S8SW8S8SW10SW13SW11
G20
SW10S6NE7
2 days agoSE4Calm------SW6SW7SW7S6SE9S7SE11S8S7S5S5--S4S4S4S5S5S3S4

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Green Bay, WI (5,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Green Bay, WI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.