Saturday, November17, 2018 L-36.com


Marine Weather and Tides
Whiting, IN

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 6:42AMSunset 4:29PM Saturday November 17, 2018 5:45 PM CST (23:45 UTC) Moonrise 2:59PMMoonset 1:30AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 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
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LMZ779 Lake Michigan From Michigan City In To St. Joseph Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Sheboygan To Port Washington Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Port Washington To North Point Light Wi 5 Nm Offshore To Mid Lake- Lake Michigan From North Point Light To Wind Point Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Wind Point Wi To Winthrop Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Winthrop Harbor To Wilmette Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Wilmette Harbor Il To Michigan City In 5 Nm Offshore To Mid Lake- Lake Michigan From Whitehall To Pentwater Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Grand Haven To Whitehall Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Holland To Grand Haven Mi 5 Nm Offshore To Mid Lake- Lake Michigan From South Haven To Holland Mi 5 Nm Offshore To Mid Lake- Lake Michigan From St. Joseph To South Haven Mi 5 Nm Offshore To Mid Lake- 246 Pm Cst Sat Nov 17 2018 Sheboygan Wi To Pentwater Mi South...
Tonight..Northeast winds 10 to 20 kt becoming north 10 to 15 kt. Isolated snow showers. Waves 2 to 4 ft.
Sunday..Northwest winds 10 to 15 kt becoming west 10 to 20 kt. Waves 2 to 4 ft.
Sunday night..West winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft.
Monday..Southwest winds 10 to 20 kt becoming west. Waves 3 to 5 ft.
Monday night..Northwest winds 10 to 20 kt becoming north. Chance of rain and snow showers in the evening. Waves 4 to 6 ft occasionally to 8 ft.
Tuesday..North winds 10 to 20 kt becoming west. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
Tuesday night..West winds to 30 kt. Chance of rain showers. Waves 5 to 8 ft occasionally to 10 ft.
Wednesday..Northwest winds 10 to 20 kt becoming north. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
Thursday..Southeast winds 10 to 20 kt becoming south 15 to 25 kt. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
LMZ779 Expires:201811180430;;456614 FZUS63 KMKX 172046 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 246 PM CST Sat Nov 17 2018 FOR WATERS BEYOND 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 wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... High pressure of 30.5 inches will sink into the Central Plains tonight into Sunday. Brisk westerly winds will develop later Sunday into Sunday night, particularly across the north half of the lake. Weak low pressure of 30.0 inches will then move from the Dakotas through the Great Lakes Sunday and Monday. High pressure of 30.3 inches will return to the area on Tuesday. A clipper system with low pressure around 29.7 inches will roll across southern Ontario Tuesday night. LMZ080-669-671-673-675-777-779-870-872-874-876-878-180430-


7 Day Forecast for Marine Location Near Whiting, IN
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location: 41.9, -87.31     debug


Area Discussion for - Chicago, IL
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Fxus63 klot 172325
afdlot
area forecast discussion
national weather service chicago romeoville, il
525 pm cst Sat nov 17 2018

Short term
300 pm cst
through Sunday...

as the stubborn f-gen driven banded snow and rain north of i-80
finally winds down, the next round is expanding into areas along
and south of interstate 80 with the approach of another low
amplitude wave. Based off radar extrapolation, the focus for
tonight's banded precip will be primarily along and south of i-80.

Fairly strong lower and mid level frontogenesis is already
yielding some pockets of near 30 dbz radar echoes in far western
il. With models indicating the stout fgen centering at around 700
mb continuing much of the night, expect steady precip rates mostly
light to moderate but at times can't rule out brief heavier
pockets.

The main limiting factor for snow accumulations tonight
will be the temps and wet bulb temps starting solidly above
freezing. Higher precip intensity should help cool temps along
with colder air gradually filtering in from the north. However,
with no strong cold advection, expecting temperatures to only
slowly fall to around freezing through the night. Snow amounts of
up to an inch or so are possible, likely mostly on
grassy colder elevated surfaces. Can't rule out some isolated
amounts perhaps up to 2". Primary impact should be visibility
under 1 mile at times, with any roadway impacts less certain and
more likely confined to rural county roads and bridges overpasses.

The precip will diminish and shift off to the east Sunday morning.

Only other minor issue is lake effect showers developing this
evening with convergent north-northeast flow down lake michigan.

The showers should start in far northwest indiana and then
gradually shift west into northeast illinois overnight. Marginal
therodynamics will result in inversion heights of 5000 feet or
less. In addition, a dry layer from about 850-700 mb casts doubt
on whether snow will even mix in with the spotty lake effect
precip or if it will mostly be sprinkles drizzle. Temperatures
remaining above freezing near the lake will preclude any travel
impacts.

Clouds will diminish from north to south on Sunday as high
pressure ridge axis overspreads the area. High temperatures will
top out in the mid to upper 30s most areas, with only low 30s in
parts of far northern il well inland. Winds will be light due to
the approaching high pressure.

Castro

Long term
140 pm cst
Sunday night through Saturday...

Sunday night through Wednesday: deep troughing over hudson bay will
only gradually shift eastward to northern quebec during this time,
with multiple embedded shortwave troughs rotating across the great
lakes. The first shortwave and associated surface trough will cross
the CWA late Monday afternoon into Monday evening. Isolated to
scattered snow showers will be possible for a 2-3 hr window as the
trough passes.

Nnw winds behind the front will support les for NW indiana Monday
night into Tuesday morning, with a window for les backing into
eastern cook county late Monday night into Tuesday morning. With
h8 sst delta temps of ~14c, only isolated to scattered showers are
expected.

A second shortwave rounding the broader trough will pass NE of the
area Tuesday night. Enough dry air should be present to prevent
precip across the NE cwa, but cannot rule out a few showers.

Thanksgiving day through Saturday: guidance has come into better
agreement that the eastern canadian trough will move eastward as a
broad mid-level trough shifts from the great plains to the great
lakes region. Though light WAA precip should remain north of the
area on thanksgiving, the CWA may end up in a persistent shield of
stratus through much of the day. Warmer conditions arrive on Friday,
with temps at or possibly slightly above normal for late november.

Another trough axis will track eastward across the area and bring a
period of rain Friday night into Saturday morning.

Kluber

Aviation
For the 00z tafs...

525 pm... Forecast concerns include the potential for lake effect
rain snow showers at mdw gyy and MVFR CIGS through Sunday morning.

A band of rain snow... Possibly trending to all snow overnight will
continue into Sunday morning generally south of interstate 80 and
the terminals. This precipitation may continue off and on at gyy
this evening. In addition... Lake effect rain or snow showers are
expected to develop this evening... Move across gyy and then
possibly move toward mdw overnight. Confidence for lake effect
precipitation is medium high but low for timing duration and
precip type. This activity should weaken and dissipate after
sunrise.

Some holes are developing in the MVFR CIGS along the il wi state
line and these may continue tonight but ifr CIGS or lower can be
expected south of the terminals with prevailing rain snow. With
winds off the lake... Expect MVFR CIGS to continue for the chicago
area terminals with some potential for ifr especially at mdw gyy
overnight. CIGS should quickly scatter by mid late Sunday morning
with increasing high clouds Sunday night.

North northeast winds generally under 10kts will slowly turn
northerly tonight... Northwest Sunday morning and then more
westerly Sunday afternoon. Cms

Lot watches warnings advisories
Il... None.

In... None.

Lm... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHII2 - Chicago, IL 14 mi25 min NNE 16 G 18 38°F 31°F
CNII2 16 mi15 min NNE 11 G 13 37°F 30°F
JAKI2 16 mi105 min NE 9.9 G 14 39°F
CMTI2 - 9087044 - Calumet, IL 17 mi27 min NNE 9.9 G 16 38°F 1025.3 hPa33°F
FSTI2 19 mi105 min NNE 29 38°F
BHRI3 - Burns Harbor, IN 20 mi43 min NE 8.9 G 11 39°F 1025.7 hPa
45186 41 mi25 min NNE 16 36°F 42°F3 ft
WHRI2 - Waukegan Harbor, IL 42 mi65 min NNE 16 G 19 35°F
SJOM4 - St. Joseph, MI 45 mi45 min NE 4.1 G 6 35°F 1026.1 hPa (-0.0)
45187 48 mi25 min 36°F 43°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gary Regional Airport, IN20 mi60 minN 87.00 miLight Rain37°F35°F93%1026.1 hPa

Wind History from GYY (wind in knots)
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Last 24hrW11W7W9W7W4W6W5W4W4CalmCalmCalmCalmCalmCalmCalmNW3CalmNW36N10N10N8N8
1 day agoSW4SW5SW9SW9SW10SW5SW8
G17
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S8S7SW7
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W15W16W12
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W17NW15W12W9
G25
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W10W10--
2 days agoNE4E4SE7SE5E6E4E5E4E5E7E6SE5CalmCalmSE10
G15
E7
G15
SE7CalmSE5S3S4W6SW4SW7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES Local Image of Midwest    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.
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Wind Forecast for Chicago, IL (18,4,5,8)
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Ground Weather Radar Station Chicago, IL
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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.