Monday, December10, 2018 L-36.com


Marine Weather and Tides
Lake Bluff, 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 7:08AMSunset 4:20PM Monday December 10, 2018 2:56 AM CST (08:56 UTC) Moonrise 10:48AMMoonset 8:25PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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
LMZ740 Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 953 Pm Cst Sun Dec 9 2018
Rest of tonight..West winds 10 to 15 kt. Mostly clear. Waves 1 to 2 ft.
Monday..West winds 10 to 15 kt becoming southwest 10 to 20 kt. Sunny. Waves 1 ft or less building to 1 to 3 ft in the afternoon.
Monday night..West winds 15 to 20 kt. Mostly clear. Waves 1 to 3 ft.
Tuesday..West winds 10 to 20 kt easing to 10 to 15 kt. Mostly Sunny. Waves 1 to 3 ft subsiding to 1 ft or less in the afternoon.
LMZ740 Expires:201812101015;;563790 FZUS53 KLOT 100353 NSHLOT NEARSHORE MARINE FORECAST National Weather Service Chicago/Romeoville IL 953 PM CST Sun Dec 9 2018 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>742-101015-


7 Day Forecast for Marine Location Near Lake Bluff, IL
   Hourly   EDIT   Help
location: 42.28, -87.83     debug


Area Discussion for - Chicago, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 klot 100838
afdlot
area forecast discussion
national weather service chicago romeoville, il
238 am cst Mon dec 10 2018

Short term
234 am cst
through Tuesday...

complicated evolution with the fog early this morning. We have an
area of clouds streaming in from the northeast across northwest
indiana and far eastern il. Visibility under this cloud shield is
not too bad. Meanwhile the clouds that formed earlier last evening
across il came in with 1 4 mile or less visibility and have been
fluctuating up and down from this level where the fog still
exists. Low level flow has been north-northeast and thus some
erosion on the eastern edge in il, depicted fairly well in aerial
coverage in the narre guidance, and thus the fog is fairly limited
in lake il, cook, and dupage counties. Expect the clouds and fog
to expand west and southward from their current locations
initially.

The challenge will be how much of this will expand back toward the
chicago metro as low level flow is progged to shift back to
westerly in the coming hours. It is during this period that we
could see this occur. We will likely need to expand the dense fog advisory
into livingston ford iroquois kankakee to account for this, again
where the narre is hitting things harder this morning. Meanwhile
the coverage across lake il and cook should be less. Therefore,
while this is not a uniform fog shield, where it exists, it is
fairly thick to dense. Whatever cloud and fog there is may take
some time to erode this morning. Challenges for temperatures will
be how quickly the clouds and fog dissipate, but cooler than
normal seems to be reasonable.

Stratus watch continues with the upstream area across mn and ia.

We will await the approach of a northwest flow shortwave tonight,
and main concerns will be how much the cloud cover will be left
and if any upstream cloud will make it back into the area.

Ensemble guidance has been mixed as to how much cloud cover will
return tonight. Tuesday appears dry behind this wave as a
transient ridge will pass overhead, and we will to tack on a few
degrees to temperatures in cloud free areas.

Kmd

Long term
234 am cst
Wednesday through Sunday...

models have been doing some shuffling with regards to the track of
a decent shortwave for Wednesday. There is a bit better
agreement, at least with the 0z runs, of this system tracking
across northern il before spreading to the eastern great lakes
late Wednesday night. This is a decent track for a band of
precipitation to shift through and end our recent dry period. The
leading edge of the warm air advection induced precip will shift
into the area Wednesday, possibly during the morning. Their is a
warm nose above freezing with the precip shield. If the NAM ec are
correct on a little earlier timing, there could be a narrow
window of freezing rain before surface temps warm. Cooling aloft
and in the column in the afternoon may allow for a changeover to
snow. Surface temperatures above freezing suggest this would be of
limited impact to main roadways.

A brief period of subsidence behind this first wave will occur
wWednesday night into Thursday as a ridge ahead of another
southern stream weather system encroaches the region. The energy
associated with this system right now is a single system off
pacific origin. By the time it gets here, models suggest some
splitting with the weaker energy to pass through wisconsin. Models
do send a closed low south of here, but differ as to whether by
the time it reaches our longitude it will be across the ohio
valley or per a model blend farther southward. Nonetheless, there
is a decent precipitation shield on the northern portion of this
system that looks like will sneak into portions of the area Thursday
night. Much of this precip that gets in will start off as rain
but then shift east of the area with the back edge of the northern
stream trough before any real cold air comes back in.

A stronger ridge will fill in behind this system bringing another
period of dry weather, along with more seasonal temperatures for
at least the first part of the weekend.

Kmd

Aviation
For the 06z tafs...

low ceilings which moved into northern il this past evening remain
in place, and have lowered while expanding the last several
hours. This expansion further south southeast will continue early
this morning, impacting all the terminals. The current ceilings
around 200ft or less and vis of 1 4sm impacting rfd and dpa at
this time will move into ord, mdw, and gyy early this morning.

Similar ceilings and vis are expected, though vis may be slightly
better in these locations. These low conditions will likely remain
through the morning, and then scatter later today. Though
confidence is low with when this scattering will occur.

Rodriguez

Lot watches warnings advisories
Il... Dense fog advisory... Ilz003-ilz004-ilz005-ilz008-ilz010-ilz011-
ilz012-ilz013-ilz019-ilz020-ilz021-ilz022-ilz023-ilz032-
ilz033-ilz039 until noon Monday.

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
WHRI2 - Waukegan Harbor, IL 6 mi77 min N 4.1 G 6 20°F
KNSW3 - Kenosha, WI 21 mi57 min SW 1 G 6 20°F 1025.4 hPa (-0.3)
FSTI2 23 mi117 min W 9.9 21°F
CHII2 - Chicago, IL 29 mi37 min WNW 5.1 G 6 25°F 21°F
CNII2 32 mi27 min W 4.1 G 5.1 23°F 19°F
JAKI2 37 mi117 min W 2.9 G 5.1 23°F
CMTI2 - 9087044 - Calumet, IL 41 mi39 min WNW 1.9 G 4.1 23°F 1025.4 hPa21°F

Wind History for Calumet Harbor, IL
(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
-12
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
W1
G4
W3
W2
SW3
SW3
SW2
SW1
G4
SE1
NE4
N7
N7
N5
NE4
N3
N3
NW2
NW5
NW3
G6
W2
W2
W2
W2
SW2
1 day
ago
W2
G6
SW3
W2
NW5
G9
NW4
NW4
NW4
N3
G7
NE2
G5
SE1
S1
SE2
--
NE1
W2
NW1
E2
S4
S4
SW3
W2
W3
NW3
SW2
2 days
ago
SW4
W3
SW4
SW3
G6
W2
G5
SW8
SW9
G13
SW7
G17
W9
G14
NW9
G16
W4
G7
W3
G6
W4
G8
W4
G7
W3
SW4
SW5
W4
G8
W4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago/Waukegan Regional Airport, IL10 mi62 minN 04.00 miFog/Mist19°F15°F84%1026.7 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL12 mi65 minN 06.00 miFair with Haze19°F14°F81%1027.1 hPa
Chicago, Chicago-O'Hare International Airport, IL21 mi66 minWSW 35.00 miFog/Mist17°F14°F88%1026.6 hPa
Kenosha, Kenosha Regional Airport, WI22 mi64 minW 64.00 miFog/Mist19°F16°F88%1026.4 hPa

Wind History from UGN (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 24hrCalmCalmCalmCalmW3W3W44SW9SW9
G15
W4NW7NW55NW3CalmCalmW3SW3W43W5W5Calm
1 day agoNW3NW3CalmCalmCalmCalmN4N5CalmSE65S4SE7SE5CalmCalmCalmW3W3CalmW3CalmNW3Calm
2 days agoW3NW3NW4SW4SW3W3W36W7
G15
SW11
G21
W7W8
G16
NW6
G15
NW4NW3CalmW3CalmCalmCalmSW3CalmW34

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    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 (3,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Chicago, IL
   (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.