Monday, May20, 2019 L-36.com


Marine Weather and Tides
Beloit, WI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:27AMSunset 8:17PM Monday May 20, 2019 1:44 AM CDT (06:44 UTC) Moonrise 10:17PMMoonset 6:58AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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
LMZ646 Wind Point Wi To Winthrop Harbor Il- 105 Am Cdt Mon May 20 2019
Rest of tonight..West wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Gusts up to 25 knots. Patchy drizzle. Waves 1 to 2 feet.
Monday..Northwest wind 10 to 15 knots with gusts to around 20 knots becoming north 5 to 10 knots early in the afternoon, then veering northeast late in the afternoon. Cloudy in the morning then becoming partly Sunny. Waves 1 to 2 feet.
Monday night..Southeast wind 5 to 10 knots veering south late in the evening, then becoming southeast after midnight becoming northeast early in the morning. Partly cloudy. Waves around 1 foot.
Tuesday..Northeast wind 5 to 10 knots veering east late in the morning, then becoming east 5 to 10 knots early in the afternoon becoming northeast 10 to 15 knots with gusts to around 20 knots late in the afternoon. Slight chance of showers through the day. Waves around 1 foot.
LMZ646 Expires:201905200900;;152385 FZUS53 KMKX 200605 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 105 AM CDT Mon May 20 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-200900-


7 Day Forecast for Marine Location Near Beloit, WI
   Hourly   EDIT   Help
location: 42.52, -89.05     debug


Area Discussion for - Milwaukee/Sullivan, WI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kmkx 200557
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
1257 am cdt Mon may 20 2019

Update
Drizzle has begun across parts of the region and should continue
over the next few hours. In addition, breezy winds continue
across most of the region as the pressure gradient remains fairly
strong from the low pressure that has pushed out of the region.

Winds will weaken into the day however as the gradient weakens.

Otherwise the forecast remains on track.

Aviation(06z tafs)
Drizzle is now falling in the region and should continue over the
next few hours. In addition, MVFR CIGS will continue overnight
into the day as the low pressure system continues to track out of
the region. CIGS have the potential to reach ifr at times, mainly
further west, but are expected to remain around 1-2 kft. Cigs
should begin to lift into the mid morning hours with MVFR cigs
expected to end by the early afternoon throughout the region.

Clouds will become more scattered to broken into the afternoon.

Otherwise winds will remain breezy from the northwest into the
morning before decreasing through the day. A lake breeze is
expected in the afternoon that will switch winds near the lake to
the east southeast.

Prev discussion (issued 847 pm cdt Sun may 19 2019)
update...

only change with this update was to add in some low pops across
portions of the area. While the surface low has pushed off into
northern michigan, the upper level low is still in the vicinity.

Water vapor imagery was suggesting a subtle jet streak and
shortwave moving into southern wi and some isolated showers have
developed as a result. The rest of the forecast is on track with
lows bottoming out in the lower 40s and a few sites in the west
could dip into the 30s.

Marine...

a strong surface low has shifted into northern michigan this
evening and winds are expected to become more W NW with time
tonight. Gusts remain strong and the small craft conditions
persist through the morning hours of Monday. Winds gradually
diminish on Monday as the system pulls further east away from the
area.

High pressure sets up to our north Monday into Tuesday and look
for winds to become more easterly. Then, starting Tuesday night
into Wednesday a strong system in the plains begins to move
towards the area. Increasing easterly winds will bring building
waves along the western portions of the lake. A small craft
advisory will likely be needed by Wednesday.

Prev discussion... (issued 623 pm cdt Sun may 19 2019)
update...

clouds across much of the area were able to clear out after the
frontal passage and allowed temps to jump into the upper 60s.

However, as more northerly flow begins to settle in over the area
expect clouds to increase through the evening hours. No major
changes were made with the forecast.

Aviation(00z tafs)...

the system is now to the east of the area and with winds turning
more to the NW a MVFR deck will spread into the terminals this
evening. The MVFR CIGS start to lift toVFR by mid to late Monday
morning. Expecting gusts to remain between 15 to 25kts through at
least 06z then gusts should drop below 20kts. High pressure moves
in late Monday helping ease winds but a lake breeze is forecast in
the afternoon with winds shifting to the E ne.

Prev discussion... (issued 238 pm cdt Sun may 19 2019)
tonight... Forecast confidence is high.

Low pressure will finally pull off to the east northeast tonight,
bringing an end to any lingering showers across our far northern
areas. There is an expansive cloud shield, so no clearing
tonight... And any clear skies in the southeast will cloud over
quickly this evening. Winds will remain elevated from the west
northwest.

Monday into Monday night... Forecast confidence is high.

High pressure will keep it dry with some clearing on Monday.

A cooler airmass will be in place... So highs only in the 50s to
around 60. Look for diminishing winds. Warm air advection well
ahead of a low pressure system over the central plains could
result in some rain pushing into areas well southwest of madison
toward sunrise on Monday. Otherwise, Monday night looks dry across
the area.

Tuesday and Tuesday night... Forecast confidence is medium.

The low pressure system over the central plains will generally lift
north into the dakotas and minnesota by Wednesday morning. The
warm advection well out ahead of the low is expected to bring some
showers and possible thunderstorms to the area during this
period. The main period would likely be during the afternoon and
evening. But, the triggering mechanism (warm air advection and mid
level short wave) will be progressively drifting farther away
from the parent system, so an overall weakening trend should occur
as it pushes east with time. We'll also have a drier east to
southeast flow that will help erode some of the advancing precip.

Those easterly winds will keep temps in the 50s.

Wednesday through Sunday... Forecast confidence is low.

By Wednesday, a large, blocking mid level high pressure system
is forecast to set up over gulf coastal area of the southeast
conus. This looks more like a summer setup and puts us in a "ring
of fire" pattern for the latter half of the week. This means all
the showers and thunderstorms will ride the northern periphery of
this ridge... Across upper midwest and southern great lakes. That's
not a good pattern for anyone hoping for a drier stretch of
weather. We'll have to wait and see where the focus for the
repetitive rounds of showers and thunderstorms sets up later this
week. It is too early for those details, but it is an unsettled
weather pattern for sure. On the positive side, this does result
in building heat, so temps are looking more seasonable. Finally.

Aviation(18z tafs)...

a large area of MVFR CIGS will push southeast across the area
this afternoon and evening. Those MVFR CIGS will gradually lift to
vfr levels later Monday morning. Expect gusty southwest winds to
veer west tonight and diminish Monday morning. A lake breeze will
likely kick in toward mid afternoon... Causing winds to turn
easterly close to the lake.

Marine...

strong low pressure tracking from southern wisconsin to northern
lower michigan through early this evening will result in west to
northwest winds pushing across the entire lake early this evening.

Small craft advisory conditions will persist within the nearshore
waters through the evening.

Look for winds to diminish on Monday as high pressure moves into
the area.

Easterly winds develop by Tuesday as strong low pressure over the
central plains lifts slowly north. Those winds will become gusty
Tuesday night into Wednesday, which should bring building waves
to the western portions of the lake. A small craft advisory will
likely be needed.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 1 am cdt early this morning for
lmz643>646.

Update... Ark
tonight Tuesday and aviation marine... Stumpf
Tuesday night through Monday... Stumpf


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
KNSW3 - Kenosha, WI 66 mi44 min W 9.9 G 15 54°F 1009.5 hPa (+2.4)
WHRI2 - Waukegan Harbor, IL 66 mi64 min W 13 G 18 55°F
MLWW3 - Milwaukee, WI 72 mi34 min W 9.9 G 13 51°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
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
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
NW4
NW4
NE3
S3
S11
G16
S12
G18
S13
G18
S15
G24
S12
G18
S12
G20
S11
G19
S16
G23
SW13
G22
SW13
G23
SW11
G18
SW9
G19
SW6
G13
W7
G17
W5
G11
SW6
G12
W7
G17
W8
G17
SW7
G18
SW7
G15
1 day
ago
N4
N7
N7
G10
NE4
NE5
E5
SE1
S4
S8
SW9
SW9
G16
SW8
G16
N5
G8
W13
G19
--
S7
SE10
G14
S9
G14
N3
NW2
NW1
NW3
NW5
G9
NW6
G9
2 days
ago
NW11
G18
NW12
G17
N13
G19
N14
G20
N7
G12
NW7
G10
NW10
G16
N12
G18
N12
G17
N15
G21
N7
G10
N8
G11
NW6
N9
G12
NW8
G11
N7
G12
N10
G14
N7
G12
N8
N6
G9
NE4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI7 mi49 minWNW 1010.00 miOvercast50°F42°F76%1010.8 hPa
Rockford, Greater Rockford Airport, IL22 mi50 minWNW 15 G 2010.00 miOvercast52°F42°F69%1012.1 hPa

Wind History from JVL (wind in knots)
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 24hrE9E11
G14
E7E3SE6S6S12--S12
G17
S13
G21
SW15
G20
SW18
G24
W20
G26
SW16
G25
SW16
G25
SW16
G25
SW16
G25
W9NW12NW12
G17
NW13
G18
W11W10
G16
NW14
1 day agoE7E4E6E5E7E8E10SE6SE4--SE6S10
G15
S10
G15
SW15
G20
SW12
G18
S10
G15
S10SE5E7E8E7E10E13E9
2 days agoCalmE14
G19
E11NE15
G20
NE9
G16
NE9
G18
NE9
G18
E7E8E8E10
G15
E16
G21
E8NE10E10E10
G15
SE13E13E10
G15
E10NE12
G16
NE5N6E11
G16

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    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 Milwaukee/Sullivan, WI (2,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Milwaukee, 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.