Sunday, January16, 2022
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Marine Weather and Tides
Whiting, IN

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:13AMSunset 4:47PM Sunday January 16, 2022 7:06 PM CST (01:06 UTC) Moonrise 4:25PMMoonset 7:35AM Illumination 100% Phase: Full Moon; 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
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LMZ779 Expires:202201170415;;473894 Fzus63 Kmkx 162038 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 238 Pm Cst Sun Jan 16 2022 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.. Low pressure of 29.7 inches is moving across lake superior into southern canada this afternoon, which will drag a cold front across lake michigan. Southwesterly winds will turn to the northwest tonight after the front passes by. Breezy northwest winds continue into Monday before briefly decreasing Monday night. Low pressure of 29.6 inches will form over the dakotas Monday night, deepening to 29.5 inches as it reaches the up of michigan Tuesday night. Southerly gales are possible Tuesday ahead of this low, with northwesterly gales possible late Tuesday night and Wednesday as the low progresses east. Lmz080-669-671-673-675-777-779-870-872-874-876-878-170415- 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- 238 pm cst Sun jan 16 2022 sheboygan wi to pentwater mi south...
Tonight..West winds 10 to 15 kt becoming northwest 10 to 20 kt, then increasing to 15 to 25 kt late. Chance of snow this evening, then slight chance of snow overnight. Light freezing spray overnight. Waves 1 to 3 ft building to 4 to 7 ft occasionally to 9 ft.
Monday..Northwest winds to 30 kt diminishing to 15 to 25 kt. Light freezing spray in the morning. Waves 6 to 9 ft occasionally to 12 ft.
Monday night..Northwest winds 10 to 20 kt becoming west 10 to 15 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
Tuesday..South winds 10 to 20 kt increasing to 30 kt in the afternoon. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
Tuesday night..Southwest winds to 30 kt becoming west. Waves 6 to 9 ft occasionally to 12 ft.
Wednesday..Northwest winds to 30 kt. Light freezing spray in the morning, then freezing spray in the afternoon. Waves 7 to 10 ft occasionally to 13 ft.
Wednesday night..Northwest winds to 30 kt diminishing to 15 to 25 kt. Freezing spray. Chance of snow. Waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally to 12 ft.
Thursday..Northwest winds 10 to 20 kt. Freezing spray. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Friday..Southwest winds 10 to 15 kt. Waves 1 to 3 ft.
LMZ779


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 162325 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 525 PM CST Sun Jan 16 2022

SHORT TERM. Issued at 221 PM CST Sun Jan 16 2022

Through Monday night .

Upper-level satellite imagery depicts a sharp shortwave screaming southeast across the Upper Great Lakes on an approach to phase with the sprawling low pressure system across the southeastern United States. A narrow band of snow is evident along the leading edge of the shortwave, though ground observations reveal that hardly anything is surviving through a parched low-level airmass. While not sampled where snow is attempting to fall, recent AMDAR soundings from aircraft arriving and departing ORD, MDW, and MKE reveal the the mean 900 to 600 mb relative humidity across northeastern Illinois and southeastern Wisconsin ranges anywhere from 5 to 25%. Even with impressive upper-level lift / DCVA as well as steepening lapse rates in the heart of the DGZ, the prospects of snowflakes surviving the trip to the ground as the band sweeps across our area this evening seems to be lowering even as precipitation rates increase above the dry layer. We thus opted to cut back on the mention of snow in our official forecast, with a 20% chance of a flurry/light snow shower seeming appropriate (if not still a tad aggressive).

Snow or no snow, clouds will become overcast this evening and hold overnight lows close to 20 degrees. After midnight, a cold front will sweep across the area leading to blustery northwest winds. Depending on the eventual depth of the clouds after midnight (which partly hinges on how much saturation can be archived through virga this evening), a few snow grains cannot be ruled out through about daybreak. The best chances for snow overnight will be in far northeastern Porter County where the increasingly unstable waters of Lake Michigan and northwesterly fetch will afford the development of snow showers. With inversion heights expected to top off near 5000 feet (and entirely below the DGZ), a low-quality snow grain is preferred which will limit snow rates and accumulations. Snow should taper toward noon on Monday as inversion heights lower and moisture quality decreases, leaving behind perhaps as much as in inch or two in total snow accumulation (particularly northeast of a line from Portage to Malden). Elsewhere, tomorrow will start cloudy before mixing allows for at least pockets of mixing and clearing. Highs should top off in the upper 20s, but the blustery northwest wind will make it feel more like the teens.

Borchardt

LONG TERM. Issued at 221 PM CST Sun Jan 16 2022

Monday night through Saturday .

The long term period begins with slightly above normal temperatures for this time of year due to southerly winds advecting warm air into northeastern Illinois and northwest Indiana. Highs on Tuesday are forecasted to reach the mid to upper 30s with some locations possibly reaching 40 degrees. Lows on Tuesday night look to stay mild and in the low to mid 30s before a cold front pushes through the area. Temperatures will be dropping throughout the day on Wednesday behind the front with blustery northwesterly winds around 25 mph. The arctic airmass behind the front will create a cold conclusion to the work week with highs struggling to make it into the 20s and overnight lows in the low single digits and even sub-zero in places. Wind chills may drop to be well below zero in the negative teens through weeks end.

Precipitation chances with the aforementioned cold front look to be low due to a lack of moisture in the mid and upper-levels of the atmosphere. Current model guidance shows relative humidities struggling to reach 50% as the front moves through which should suppress any precipitation development. However, a band of moisture does look to develop and move down lake Michigan on the backside of the system Wednesday night into Thursday which would allow some lake-effect snow showers to develop across portions of northwest Indiana. Given the northwest flow in place, precipitation chances are expected to be higher towards northern Indiana and southwestern Michigan with lower chances further to the west. I have opted to keep slight chances of precipitation mentioned for the Indiana lakeshore and northeastern Porter county at this time to account for this potential.

The next chance for more widespread precipitation doesn't look to be until the weekend where models are showing another clipper system diving across the Great Lakes region. Forecast guidance is still uncertain on the timing of this system and the extent of the precipitation with it so I have opted to leave precipitation chances as they were from the NBM forecast.

Yack

AVIATION. For the 00Z TAFs .

525 PM . Forecast concerns include .

Chance of light snow this evening. Mvfr cigs overnight/Monday morning. Gusty northwest winds overnight thru Monday afternoon.

An area of light snow is moving across northwest IL and south/ central WI early this evening, dropping visibilities into the 2-3sm range for a short period of time. There is quite a bit of dry air in the low levels that this snow will need to saturate before reaching the ground across the Chicago terminals and as it saturates the low levels, it may begin to weaken/dissipate some, though confidence remains low. Much of the high res guidance then shows another area of light snow developing from the Chicago terminals south into central IL by mid evening. By that time, the low levels should be sufficiently moist that any snow that does develop should be able to reach the surface. For now, opted to carry tempo light snow with mvfr vis through 03z and monitor trends this evening. If snow does reach the Chicago terminals, possible vis briefly dips into the 2sm range. There will be a continued chance for flurries overnight.

A large area of mvfr cigs across MN/IA and western WI will move southeast across the area overnight and prevailing mvfr cigs are expected through much of Monday morning, slowly scattering and lifting Monday afternoon.

Westerly winds under 10kts will shift northwest later this evening with speeds/gusts increasing in the early morning hours. Gusts into the mid 20kt range are expected Monday morning. Gusts are expected to continue through sunset Monday evening, but should be slowly diminishing during the afternoon. cms

LOT WATCHES/WARNINGS/ADVISORIES. IL . None. IN . None. LM . Small Craft Advisory . LMZ744-LMZ745 . midnight Monday to midnight Tuesday.

Small Craft Advisory . LMZ740-LMZ741-LMZ742-LMZ743 . midnight Monday to 3 PM Monday.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHII2 - Chicago, IL 14 mi47 min WNW 11G11 28°F 13°F
CNII2 16 mi37 min WNW 6G8.9 27°F 11°F
JAKI2 16 mi127 min NW 2.9G7 28°F
CMTI2 - 9087044 - Calumet, IL 17 mi67 min W 5.1G8.9 27°F 1007.1 hPa (-1.0)19°F
OKSI2 17 mi127 min N 2.9G5.1 29°F
BHRI3 - Burns Harbor, IN 20 mi87 min NNE 1.9G2.9 25°F 1008.8 hPa
MCYI3 - Michigan City, IN 24 mi47 min NW 4.1G5.1 26°F 1010.2 hPa17°F
WHRI2 - Waukegan Harbor, IL 42 mi127 min SW 4.1G6 26°F
SJOM4 - St. Joseph, MI 45 mi67 min 0G2.9 26°F 1008.5 hPa (-1.0)

Wind History for Calumet Harbor, IL
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Last 24 hrE9
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gary Regional Airport, IN20 mi82 minN 010.00 miFair25°F19°F80%1008.8 hPa

Link to 5 minute data for KGYY

Wind History from GYY (wind in knots)
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Last 24 hrE6E6E8E7E6E5E6E5000000000N3E4NE40000
1 day agoE17NE4NE9NE11
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E11NE15E9----NE100NE10NE10NE13NE7NE7NE7NE6E6
2 days ago000N40NW5N7N8N8N9N16NE13NE17NE13NE11NE10
G14
NE8NE7NE10NE10NE100NE13NE6

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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