Monday, June26, 2017 L-36.com


Marine Weather and Tides
Oshkosh, 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 5:11AMSunset 8:43PM Monday June 26, 2017 3:42 AM CDT (08:42 UTC) Moonrise 8:13AMMoonset 10:51PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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
LMZ543 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- 325 Am Cdt Mon Jun 26 2017
.small craft advisory in effect from 9 am cdt this morning through this evening...
Today..NW wind increasing to 15 to 25 kts. Waves 1 to 3 ft. A chance of showers and a slight chance of Thunderstorms.
Tonight..W wind diminishing to 10 to 15 kts. Waves 1 to 3 ft. Mostly clear.
Tuesday..SW wind 10 to 15 kts. Waves 2 ft or less. Mostly Sunny.
Tuesday night..SW wind 10 to 15 kts. Waves 1 to 3 ft. Mostly clear.
LMZ543 Expires:201706261615;;838432 FZUS53 KGRB 260825 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 325 AM CDT Mon Jun 26 2017 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-541>543-261615-

7 Day Forecast for Marine Location Near Oshkosh, WI
   Hourly   EDIT   Help
location: 44.02, -88.56     debug


Area Discussion for - Green Bay, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrb 260836
afdgrb
area forecast discussion
national weather service green bay wi
336 am cdt Mon jun 26 2017
forecast discussion for routine morning forecast issuance

Short term Today... Tonight... And Tuesday
issued at 335 am cdt Mon jun 26 2017
a cold upper low will move across the region today and bring
clouds, showers and temperatures around 15 degrees below normal.

The air is cold enough for enhancement of the showers by the lake
and bay, so the best chance of rain is in those areas. Wet bulb
zero heights are very low, but instability is weak, so some very
small hail is possible. The showers should end from north to south
during the afternoon as the upper low departs.

Skies should clear tonight, and with a cool start to the evening,
lows should fall into the 40s in most locations, with some upper
30s in far northcentral wisconsin.

Sunny skies and pleasant temperatures expected Tuesday, with
highs in the 70s.

Long term Tuesday night through Sunday
issued at 335 am cdt Mon jun 26 2017
the mean flow to have already de-amplified by the start of the
extended forecast, however this may only be temporary as models
indicate two separate shortwave troughs which will move through wi
Wednesday Thursday and Friday Saturday. The first system will have
a surface low cold front accompany the trough with showers
thunderstorms affecting northeast wi mainly Wednesday afternoon
night. The second system appears more robust and will impact
northeast wi in two waves, Friday and again on Saturday. Bottom
line, look for unsettled weather to return with below normal
temperatures to end the month of june.

As the surface high shifts east into the appalachians Tuesday
night, a return flow with WAA will increase across wi. Meanwhile,
a shortwave trough cold front combination will be pushing across
the northern central plains. Increasing moisture transport should
bring a gradual increase in clouds across northeast wi mainly
after midnight and cannot rule out a stray shower from reaching
central wi toward daybreak. Temperatures will not get nearly as
cool as Monday night with readings for Tuesday night in the upper
40s to lower 50s north, mainly middle 50s south.

The shortwave trough cold front reach the upper ms valley on
Wednesday with showers thunderstorms spreading eastward across wi
through the day. Instability is initially lacking with mucapes not
getting above 500 j kg until 00z Thursday. There will be plenty of
moisture available as the system approaches with pw values
climbing over 1.5 inches and dew points reach the lower 60s by
Wednesday afternoon. Some locally heavy rainfall is possible over
northeast wi later on Wednesday afternoon and with soil conditions
still somewhat saturated, there could be some areal flooding
possible. MAX temperatures are expected to be near 70 degrees
north-central wi, lower to middle 70s elsewhere.

The potential for heavy rain will continue into at least Wednesday
evening as the shortwave trough cold front move into the western
great lakes. Severe risk should be held to a minimum due to all
the clouds precipitation in the area, even as mucapes get into the
500-1000 j kg range. The main concern would be possible flooding
or river flooding Wednesday night as saturated soils would
continue and some rivers are still running high fast flows. This
will need to be watched over the next 36-48 hours. Showers and
thunderstorms should start to diminish later Wednesday night as
the better lift mid-level forcing shift east into lower mi. Min
temperatures to range from the middle to upper 50s north-central,
lower to middle 60s east-central wi. Lingering light showers
perhaps a stray thunderstorm to carry over into Thursday morning,
however most of Thursday appears to be dry as the area to reside
between systems. If we can get even a little sunshine,
temperatures would be able to warm up a bit. For now, have max
temperatures in the lower 70s north-central, generally 75-80
degree range elsewhere.

After a quiet Thursday night, precipitation chances look to be on
the increase again as the next shortwave trough cold front
push into the western great lakes on Friday. The higher pops are
expected to be over the southern half of wi where the models show
a surface wave moving northeast along the cold front. Since
northeast wi never truly gets into the warm sector, the threat for
any severe storms appears to be minimal at this time. Max
temperatures for Friday will be cool once again with the
increasing chance for precipitation, thus readings will only be
around 70 degrees north-central lakeshore, lower to middle 70s
elsewhere.

Precipitation trends are forecast to gradually diminish Friday
night as the shortwave trough moves east, along with the surface
wave cold front. However, cannot rule out a small chance of
showers on Saturday as the next shortwave trough sweeps into the
upper ms valley and mid-level forcing begins to increase over wi.

Max temperatures on Saturday will remain cool with readings
similar to Friday. This latest shortwave trough quickly moves
across wi Saturday night and be to our east on Sunday. Will keep a
small pop for Saturday night with the passage of the trough, then
mainly dry conditions are expected on Sunday as weak high pressure
moves into the region.

Aviation For 06z TAF issuance
issued at 1113 pm cdt Sun jun 25 2017
ceilings late Sunday evening were mainlyVFR with patchy mid
level clouds. The only exception is the far north and northeast
where area of MVFR CIGS were noted along with isolated light
showers. Little to change overnight into Monday as the region will
remain in a moist cyclonic flow. More showers are expected Monday
as the upper trough and cyclonic flow will linger one more day.

Grb watches warnings advisories
None.

Short term... ..Rdm
long term... ... Kallas
aviation... ... .Tdh


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
SGNW3 - Sheboygan, WI 50 mi42 min W 8.9 G 9.9 55°F 1016.5 hPa (-0.5)50°F
PWAW3 - Port Washington, WI 57 mi62 min W 6 G 8.9 56°F 1017.9 hPa

Wind History for Kewaunee MET, WI
(wind in knots)    EDIT      (on/off)   Help
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
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
Last
24hr
W4
G9
W6
G9
SW4
G7
W6
W7
G10
W9
G13
NW9
G13
NW6
G11
NW11
G15
NW8
G13
NW9
G12
NW7
G11
SE8
G12
SE9
N3
SE1
N2
W6
G9
W4
G8
W5
W5
G10
W6
G11
W7
G10
NW3
G6
1 day
ago
W4
W4
G8
W5
W7
G12
NW6
G10
NW7
G13
NW8
G11
NW8
G11
W7
G11
W9
G13
W9
G17
W13
G18
W13
G17
W11
G17
W9
G14
W9
G12
W7
G11
W3
N2
G5
NE5
NW2
G8
W9
G12
SW4
G7
W5
G8
2 days
ago
NW4
G7
NW4
W6
G9
NW5
G9
NW7
G14
NW7
G11
W7
G12
W8
W8
G14
W8
G13
W10
G16
W12
G20
W11
G20
W8
G12
NW9
G13
W5
G8
W4
G8
NW4
NW2
NW3
NW4
W3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wittman Regional Airport, WI1 mi49 minW 310.00 miFair51°F46°F86%1016.7 hPa
Appleton-Outagamie, WI17 mi67 minW 510.00 miFair48°F48°F100%1016.6 hPa
Fond Du Lac County Airport, WI18 mi49 minWSW 510.00 miFair52°F46°F80%1017.6 hPa

Wind History from OSH (wind in knots)
4
AM
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
Last 24hrW6W7W8W5W7
G18
W6W10
G16
W14
G17
W13
G18
W12
G20
W12
G17
W86
G16
NW12
G19
W6
G16
W644W6W4W3W5W6W3
1 day agoW7W9W10W9
G17
W10W13
G19
W12
G20
W15
G21
W12
G17
W13
G20
W15
G21
W13
G23
W11
G22
W16
G22
W13
G18
W10
G17
4W10
G22
W7W7W4W7W5W6
2 days agoW4W4W4W7W7NW5W54W6W11
G17
W12
G19
W12
G21
NW16
G23
NW17
G21
NW12W9NW12
G19
W5W4W5W5W5W5W6

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 (4,6,7,8)
      (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.