Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
Winthrop Harbor, IL

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 6:54AMSunset 7:03PM Tuesday March 19, 2019 6:05 PM CDT (23:05 UTC) Moonrise 5:30PMMoonset 6:27AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 506 Pm Cdt Tue Mar 19 2019
Tonight..South wind 10 to 15 knots easing to 5 to 10 knots late in the evening, then rising to 10 to 15 knots after midnight veering southwest early in the morning. Partly cloudy. Waves around 1 foot.
Wednesday..Southwest wind 10 to 15 knots. Rain showers likely through the day. Waves 1 to 2 feet.
Wednesday night..Northwest wind 10 to 15 knots veering north with gusts to around 20 knots early in the morning. Chance of showers through around midnight. Waves 1 to 2 feet.
Thursday..Northwest wind 10 to 15 knots easing to 5 to 10 knots early in the afternoon, then backing west late in the afternoon. Partly Sunny in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon. Wave heights are for ice free areas.
LMZ646 Expires:201903200400;;621852 FZUS53 KMKX 192206 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 505 PM CDT Tue Mar 19 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-200400-


7 Day Forecast for Marine Location Near Winthrop Harbor village, IL
   Hourly   EDIT   Help
location: 42.47, -87.82     debug


Area Discussion for - Chicago, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 klot 191946
afdlot
area forecast discussion
national weather service chicago romeoville, il
246 pm cdt Tue mar 19 2019

Short term
1232 pm cdt
through Wednesday...

seasonal conditions remain in place afternoon with plentiful
sunshine, some scattered cumulus, and readings in the upper 40s
to near 50. Water vapor imagery depicts an increasing cloud
shield out ahead of the upper low currently across the central
plains. Warm advection ahead of the compact upper low will drive
an area of rain across the area late tonight into Wednesday.

Morning raobs indicate an axis of pwat values in excess of 0.6",
not a direct gulf of mexico feed but an axis of increased
moisture. Southwest flow ahead of the low will induce isentropic
ascent and eventually lead to lower level saturation. For tonight
the ascent is more modest, but will increase overnight into more
so Wednesday morning. Ensemble plumes suggest most areas will see
under 0.25" of qpf, but the lift and moisture are supportive of
higher totals mainly along and south of i-80 and into northwest
indiana.

The stronger shortwave energy will pass to our south, but broad
height falls and the main trough axis will still be shifting
through Wednesday afternoon, thus cloudy conditions will persist
with some light rain showers still possible. Given the extensive
cloud cover, expect highs to fall shy of 50 in most areas.

Kmd

Long term
Wednesday night through Tuesday...

246 pm... Forecast concerns include a cold front winds off the
lake Friday... Brief warm up this weekend and another strong cold
front Sunday night Monday.

Weak low pressure will be departing to the east Wednesday evening
as winds shift to the northwest across the area. There may still
be some lingering rain showers Wednesday evening and depending on
how long they persist... They may mix with some wet snow later in
the evening or after midnight but by this time it appears precip
would be ending or perhaps just some flurries.

A cold front is now expected to move across the area early Friday
morning and this is likely to keep temps generally in the 40s but
as winds turn off the lake Friday afternoon... Temperatures will
fall during the mid late afternoon near the lake and likely into
the 30s. High pressure will then build across the area Friday
night with light calm winds expected. This high will be close
enough to the area on Saturday for at least a weak lake breeze
along the il shoreline. Have shifted winds southeasterly there
with modest cooling but a bit early to determine how far inland
and how strong the lake breeze will become. Away from any lake
cooling... High temps Saturday should reach lower mid 50s.

A large area of strong high pressure will move south from canada
into the northern plains on Monday and then weaken as it shifts
south Tuesday. But this high will drive a strong cold front south
across the area Sunday night with much colder air spreading
across the area Monday. Its possible highs on Monday remain in the
30s near the lake and only lower 40s further inland. This cold
front also pushes the precipitation further south faster. In
addition... With the arrival of colder air some change mix with
snow is possible but this system is several days away and its too
early for details... Other then trending colder and windy. Cms

Aviation
For the 18z tafs...

concerns:
- period of rain late tonight, more so on Wednesday
- MVFR ceilings and visibility with the rain
- chance of ifr ceilings getting close to the terminals weds am
quiet conditions will continue this afternoon and tonight as high
clouds spread northeastward ahead of low pressure across the
plains. Southwest winds ahead of the low should keep the lake
breeze confined to the shore line in NE il and even near gyy.

Tonight as low pressure strengthens upstream, winds will back to
south, maybe briefly southeasterly. Winds below 2000 feet may get
to 35 kt which will introduce marginal llws criteria late tonight
into early Wednesday.

Rain will spread in very late tonight into Wednesday. Ceilings
will fall to MVFR, with some ifr certainly possible west of the
main chicago terminals. The rain should be mostly light such that
ifr visibility is not likely or would be short lived. Expect
occasionally gusty SW winds. The rain showers will linger into
the afternoon as we await the surface trough axis, and winds will
slacken one the trough arrives.

Kmd

Lot watches warnings advisories
Il... None.

In... None.

Lm... None.

Visit us at http: weather.Gov chicago (all lowercase)
follow us on facebook... Twitter... And youtube at:


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 8 mi66 min S 13 G 15 39°F 1025.7 hPa (-2.1)
WHRI2 - Waukegan Harbor, IL 8 mi86 min SE 11 G 13 40°F
FSTI2 35 mi126 min SE 8.9 42°F
CHII2 - Chicago, IL 40 mi46 min S 6 G 8.9 46°F 26°F
MLWW3 - Milwaukee, WI 40 mi26 min 47°F
JAKI2 49 mi126 min SSW 8.9 G 14 49°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
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
24hr
W6
G12
W4
G9
W4
G7
SW3
S4
SW4
G7
SW3
SW3
SW3
SW4
SW5
SW5
SW5
SW4
G7
SW3
SW4
SW5
SW4
G10
SW8
SW5
G10
SW5
G11
S10
G16
S7
G13
S5
G10
1 day
ago
NE5
E4
--
SE1
SE1
S1
S1
S3
SW4
W3
G7
W3
W4
W3
W3
NW4
NW5
G8
W4
G8
NE3
E2
G7
E9
E4
S2
G9
SW5
G10
SW4
G11
2 days
ago
E6
E5
E5
E3
G6
E4
SE1
SE2
SE2
S2
S4
S4
S3
S4
G7
SW4
G7
SW6
G11
SW6
G10
SW6
G9
SW6
G10
SW4
G8
SW7
G11
W5
G11
N10
G14
N8
G11
NE8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago/Waukegan Regional Airport, IL4 mi71 minSE 1010.00 miFair44°F23°F43%1026.4 hPa
Kenosha, Kenosha Regional Airport, WI10 mi73 minWSW 710.00 miFair48°F25°F41%1026.1 hPa
Racine, Batten International Airport, WI20 mi73 minSSE 1010.00 miFair45°F24°F44%1026.7 hPa

Wind History from UGN (wind in knots)
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
6
PM
Last 24hrSW3SW3SW4SW4W3SW4W333W3SW3SW3W43W4SW7SW10SW7
G16
SW9SW8
G25
SW8
G18
SE11SE10SE4
1 day agoSE3CalmCalmCalmSW3W3NW4NW4NW4NW4W53W4W4W6NW6366W7
G14
66NW5W5
2 days agoE5SE4SE4CalmSE4S3CalmCalmCalmCalmCalmCalmCalmW3NW35NW10NW9
G15
66NW10
G14
N73E6

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)   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 Chicago, IL (19,4,5,8)
      (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.