Monday, July22, 2019 L-36.com


Marine Weather and Tides
Manitowoc, WI

Version 3.4
NOTICE
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 5:26AMSunset 8:27PM Monday July 22, 2019 5:40 PM CDT (22:40 UTC) Moonrise 11:36PMMoonset 10:54AM Illumination 67% 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
LMZ543 Expires:201907230415;;472682 Fzus53 Kgrb 222012 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 312 Pm Cdt Mon Jul 22 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz541>543-230415- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 312 Pm Cdt Mon Jul 22 2019
Tonight..NW wind 5 to 10 kts. Waves 2 ft or less. Mostly clear.
Tuesday..N wind 10 to 15 kts veering E 5 to 10 kts early in the afternoon. Waves 2 ft or less. A slight chance of showers and Thunderstorms in the afternoon.
Tuesday night..SW wind 5 to 10 kts veering W in the late evening and overnight. Waves 2 ft or less. Mostly clear.
Wednesday..SW wind 5 to 10 kts. Waves 2 ft or less. Sunny.
LMZ543


7 Day Forecast for Marine Location Near Manitowoc city, WI
   Hourly   EDIT   Help
location: 44.09, -87.65     debug


Area Discussion for - Green Bay, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrb 221937
afdgrb
area forecast discussion
national weather service green bay wi
237 pm cdt Mon jul 22 2019
forecast discussion for routine afternoon forecast issuance

Synopsis
Issued at 236 pm cdt Mon jul 22 2019
relatively quiet weather is expected for most of the work week,
along with a very gradual upward trend in temperatures and
humidity levels. The next chance for widespread significant
rainfall will be on Friday.

Large scale amplification is well underway, and will peak during
the next day or so. The main longwave features will be troughs
just off the west coast and over eastern north america, and a
ridge over the rockies. Fairly rapid deamplification is expected
during the middle to latter part of the week, with a return to a
nearly zonal ribbon of westerlies across the northern CONUS and
southern canada by next weekend.

Slightly below normal temperatures resulting from northwest upper
flow at the start of the period will creep upward to modestly
above normal for the middle to latter part of the period. A
return to more humid conditions is also anticipated, though it
seems unlikely dew points will reach the levels observed late last
week. Although a round or two of scattered light precipitation
may occur during the first half of the period, precipitation
totals will depend primary on what falls during the latter half of
the period. That is difficult to assess, but amounts will
probably end up AOB normal.

Short term Tonight and Tuesday
issued at 236 pm cdt Mon jul 22 2019
mostly quiet weather will continue through the short term period.

The main focus the potential for isolated thunderstorms and
showers Tuesday afternoon as an mid level shortwave moves through
the region.

For the remainder of Monday, quiet and dry conditions are expected
to continue across the region as high pressure conditions remain
in place. Some fair weather cumulus will likely be in place
through the day, clearing again in the evening as diurnal heating
exits. Overnight, models hint at a weak shortwave moving through
the region, but given the lack of moisture instability and
overnight timing, kept the forecast mostly dry for the period,
with the exception of far northern wisconsin.

Tuesday, cloud cover will be on the increase as temperatures head
towards the lower 80s once more. Sufficient instability is
expected to develop in the afternoon for a few showers and
possible thunderstorms in the area. The potential for showers and
thunderstorms will be best in eastern wisconsin during the
afternoon, as the lake breeze will provide a focus for
thunderstorm and shower development. CAPE and shear will be fairly
minimal during this time period, so although thunder is possible,
no severe development is expected. With the ample dry air and
inverted-v soundings, expect good mixing during the afternoon and
evening, increased wind gusts a bit in the afternoon. The gusts
could be a bit higher with any areas that see showers, as the rain
aids in mixing down the winds aloft. Gusts will be in the 20 to
30 mph range.

Long term Tuesday night through Monday
issued at 236 pm cdt Mon jul 22 2019
a large anticyclone across the plains will shift south of the
area Tuesday night and Wednesday. The scattered convection that
forms Tuesday afternoon could linger into the evening before
dissipating. A few more showers could pop up over the far
northeast during the day Wednesday,. Support is not as great as
on Tuesday, so will omit thunder for now.

Thursday through Friday, a strong shortwave will drive east
across southern canada in the re-establishing zonal regime.

Return flow on the back side of the departing high and ahead of a
cold front approaching from the west will result in gusty south
winds, and a return of higher dew points to the area.

Thunderstorms chances will increase on Friday. The strength of the
flow aloft suggests there may be a severe risk with the storms,
though that will depend of the details of the pattern that are
uncertain this far in advance. Storms will be possible at times
through the upcoming weekend, as the frontal system crossing the
area Friday settles along the southern edge of the westerlies.

The standard forecast initialization grids seemed reasonable, so
only minor changes were needed.

Aviation For 00z TAF issuance
issued at 203 pm cdt Mon jul 22 2019
good flying weather through the TAF period as surface high pressure
ridge dominates the weather over wisconsin. Surface heating and
cooler air aloft will contribute to sct-bknVFR CU this afternoon.

Relatively deep boundary layer mixing will also keep gusty n-nw
wind up to 20 kts until 23 utc especially over eastcentral
wisconsin.

Generally fair skies and light NW winds will be the rule
overnight.

Weak upper-level disturbance is forecast to move southeast and
impact mainly the eastern portion of the forecast area Tuesday
afternoon. Although this system will have limited deep layer
moisture to work with, surface heating, relatively cold air aloft
and weak surface convergence may be enough to generate isolated
showers or perhaps a rumble of thunder during the afternoon.

Kosh Minor concerns for the TAF period. A few shallow cumulus
clouds with bases around 5-6k ft will persist this afternoon.

Northwest winds continue for the remainder of the afternoon with
occasional gusts to 20 kts. Winds will diminish and back to a
more wnw direction overnight.

A few isolated showers and perhaps a rumble of thunder is possible
especially after the TAF period Tuesday afternoon.

Grb watches warnings advisories
None.

Synopsis... ... .Skowronski
short term... ..Uhlmann
long term... ... Skowronski
aviation... ... .Esb


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 24 mi40 min NE 1.9 G 1.9 66°F 1018.4 hPa (-0.3)50°F
KWNW3 - 9087069- Kewaunee, WI 27 mi52 min NW 5.1 G 8.9 76°F 1017.3 hPa

Wind History for Kewaunee MET, WI
(wind in knots)    EDIT      (on/off)   Help
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
4
PM
Last
24hr
NE1
G4
--
NE1
G6
NE3
G9
NE4
G9
NE4
G7
NE4
G9
NE5
G10
N6
G11
N3
G7
N2
G8
N2
G6
NW2
NW2
G7
NW3
G8
N2
G11
N2
G9
N1
G7
NE3
G9
NE3
G9
NE3
G8
NE3
G7
E2
G5
S3
G6
1 day
ago
NW1
G4
NW4
G8
NW4
G8
NW3
G6
W1
NW2
NW1
--
NW1
NW1
NW1
NW1
NW1
NW1
--
--
S2
S2
G5
S1
E1
E1
G4
NE3
G7
NE4
G9
E1
G4
2 days
ago
S13
S15
S12
S6
--
NW23
G42
W4
G12
SW7
S13
S12
G16
S17
S8
S10
G15
S5
G10
S3
NE1
G4
--
--
NE3
G9
N2
N19
G31
NE3
G8
NW9
G14
S4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Manitowoc, Manitowoc County Airport, WI4 mi44 minNW 610.00 miFair76°F48°F37%1018.2 hPa
Sheboygan County Memorial Airport, WI24 mi47 minVar 410.00 miA Few Clouds76°F51°F42%1018.4 hPa

Wind History from MTW (wind in knots)
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
4
PM
5
PM
Last 24hrE8NE4NE4NE66NE44N5N6N5N5N5NW4NW7N8N10
G14
NW10N10
G18
NW14N12
G18
N10
G16
N12
G17
N7
G18
NW6
1 day agoNW7NW8NW9NW5CalmCalmNW3NW3CalmW3NW3CalmCalmCalmNW3CalmNE3N5NW5N5NW65N5E8
2 days agoE5SE6SE4E4CalmW9
G14
S14SE4SE10S14S15
G20
S10S4SW11S9SW9SW9
G16
SW6E3----E8NE3Calm

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES 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 (18,4,5,8)
      (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.