Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Egg Harbor, 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 6:00AMSunset 7:49PM Sunday August 20, 2017 3:57 PM CDT (20:57 UTC) Moonrise 4:30AMMoonset 7:13PM Illumination 2% Phase: Waning Crescent; Moon at 28 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
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- 257 Pm Cdt Sun Aug 20 2017
.small craft should exercise caution from this afternoon through this evening...
Tonight..S wind 10 to 15 kts veering W 5 to 10 kts after midnight. Waves 1 to 3 ft. A slight chance of showers and Thunderstorms. Patchy fog after midnight.
Monday..NW wind 5 to 10 kts backing se in the late morning and afternoon. Waves 2 ft or less. A chance of showers and Thunderstorms.
Monday night..SE wind 5 to 10 kts veering sw, then veering nw after midnight. Waves 2 ft or less. Showers likely and a chance of Thunderstorms.
Tuesday..NW wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy.
LMZ521 Expires:201708210415;;687548 FZUS53 KGRB 201957 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 257 PM CDT Sun Aug 20 2017 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-210415-

7 Day Forecast for Marine Location Near Egg Harbor, WI
   Hourly   EDIT   Help
location: 45.09, -87.23     debug


Area Discussion for - Green Bay, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrb 201932
afdgrb
area forecast discussion
national weather service green bay wi
232 pm cdt Sun aug 20 2017
forecast discussion for routine afternoon forecast issuance

Synopsis
Issued at 226 pm cdt Sun aug 20 2017
warm and humid with thunderstorms at times through tomorrow night,
then cooler and drier for the rest of the upcoming work week.

A seasonably strong band of westerlies will persist across the
northern CONUS and southern canada throughout the period. A
gradual amplification of the flow is anticipated as an upper
trough deepens over eastern north america. The period will begin
with above normal temperatures, readings will drop back to a
little below normal for several days, then moderate late in the
period. The main opportunities for rain will be early and late in
the period, likely resulting in amounts AOA seasonal normals.

Short term Tonight and Monday
issued at 226 pm cdt Sun aug 20 2017
determining the timing and intensity of convection continues to
be the main short-term forecast challenge.

A cold front has entered northwest wisconsin. It will make some
additional progress to the south and east before basically
stalling out across the area late tonight. The front will also
become increasingly diffuse with time. Large scale forcing for
ascent will also be somewhat ill-defined until late tomorrow.

These factors suggest it would be unwise to attempt to add too
much detail to the precipitation forecast. So after an increase in
pops from NW to SE this evening to account for the arrival of the
front into a modestly unstable air mass, opted to settle pops
back into the chance slight chance range through tomorrow. The
most likely time period for widespread convection will be at the
start of the long- term part of the forecast, so trended pops up
late tomorrow afternoon as a lead in to that.

Capes around 2000 j kg along with 20-30 kts of deep-layer shear
suggest a low-end severe threat will persist though this evening
near the front. That threat will wane overnight as the atmosphere
stabilizes, then redevelop tomorrow. The SPC day 1 and 2
convective outlooks seem to handle the situation well. Will also
mention the heavy rain threat in the hwo.

Models are perhaps a little less optimistic in terms of showing
sky conditions that will allow viewing of the eclipse tomorrow.

But with the front in the area, it will still come down to when
and where there are breaks in the clouds near the front.

Long term Monday night through Sunday
issued at 226 pm cdt Sun aug 20 2017
the chance for heavy showers and thunderstorms will persist
throughout northeast wisconsin Monday night and end as a cold
front moves through the region on Tuesday. Temperatures will cool
into the upper 40s to mid 50s Tuesday night as high pressure
moves in. Temperatures will then be a little below normal for a
few days, providing for a pleasant second half of the week under
mostly sunny skies. The next chance for precipitation arrives
Saturday as a low pressure system traveling east along the
canadian border approaches wisconsin.

Aviation For 18z TAF issuance
issued at 1246 pm cdt Sun aug 20 2017
a cold front will sag south into the area late today and tonight.

Scattered thunderstorms will accompany the front. Other that with
the storms,VFR conditions are anticipated. The front may sag far
enough south to allow winds over central and north-central
wisconsin to weaken overnight. That favors fog formation. Added
some fog to the central and north-central wi TAF sites for now,
but may need to lower visibilities further in later tafs,
especially in any areas that receive rain this afternoon.

Grb watches warnings advisories
None.

Synopsis... ... .Skowronski
short term... ..Skowronski
long term... ... Ml
aviation... ... .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
MN4 - 9087088 - Menominee, MI 19 mi40 min S 11 G 16 77°F 1013.6 hPa64°F
NPDW3 - Northport Pier at Death's Door WI 19 mi78 min SSE 6 G 13 75°F 1013.9 hPa
45014 35 mi58 min SSW 9.7 G 12 74°F 72°F1014.2 hPa
KWNW3 - 9087069- Kewaunee, WI 45 mi40 min S 11 G 13 69°F 1014.2 hPa
FPTM4 - Fairport, MI 47 mi78 min S 12 G 14 69°F 1014.2 hPa
45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. 47 mi68 min S 16 G 18 69°F 67°F2 ft1014.8 hPa (-1.6)

Wind History for Menominee, MI
(wind in knots)    EDIT      (on/off)   Help
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
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last
24hr
W6
W9
G14
SW10
G14
SW6
SW6
SW7
SW7
SW7
SW6
W6
SW6
W5
SW5
S4
G7
SW5
S4
S5
S5
G8
SW9
G12
S9
G12
S8
G13
S10
G14
S12
G15
S14
G18
1 day
ago
NW5
G9
NW7
G11
NW12
G15
NW11
NW6
W1
W2
W5
W6
W7
W5
W5
W6
W6
G9
W7
W7
G10
W8
G11
W10
G13
W5
G9
W7
SW7
G13
W4
G7
W6
G12
W4
G7
2 days
ago
SW14
G24
S10
G15
S7
G13
SW6
G12
SW8
W7
G10
SW9
G13
W12
G18
W11
G22
W10
G15
W8
G15
W7
G15
W8
G12
W10
G15
W8
G14
W8
G13
W7
G11
NW9
G15
NW9
G16
NW8
G18
W9
G17
NW10
G16
W9
G17
W5
G9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Door County Cherryland Airport, WI19 mi62 minS 1010.00 miFair76°F68°F77%1016.2 hPa
Menominee - Marinette Twin County Airport, MI21 mi62 minSW 1110.00 miFair79°F64°F62%1015.2 hPa

Wind History from SUE (wind in knots)
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
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last 24hrW8
G15
W10SW8SW4SW6SW5SW5SW5SW5SW4SW4SW5--SW3S5SW4S3SW6SW6SW9S12S12S9S10
1 day agoW7NW5NW4N11N9N6N5CalmCalmSW3SW4SW3W4SW4SW5W5W6W9W9W9--W9W12W10
2 days agoSW13
G18
SW11
G17
SW9SW11
G20
SW11
G18
SW14
G19
W14W12
G19
W15
G21
W13
G17
W11
G19
W11
G16
W14W10W11NW13
G20
W12
G17
NW14
G19
W10W12NW13
G16
NW9NW10W9

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Green Bay, WI (16,3,4,5)
      (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.