Gary, IN Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Gary, IN

December 9, 2023 9:45 AM CST (15:45 UTC)
Sunrise 7:02AM   Sunset 4:20PM   Moonrise  4:29AM   Moonset 3:01PM 

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. Privacy and Cookie policy

Marine Forecasts
    EDIT      Help
LMZ744 Gary To Burns Harbor In-burns Harbor To Michigan City In- 829 Am Cst Sat Dec 9 2023
.small craft advisory in effect through late Sunday night...
Rest of today..Southwest winds to 30 kt this morning becoming west 20 to 25 kt this afternoon. Isolated showers ending by noon. Waves 2 to 4 ft building to 3 to 5 ft.
Tonight..West winds 20 to 25 kt. A few sprinkles and flurries in the evening. Waves 3 to 5 ft.
Sunday..Northwest winds 15 to 25 kt. Slight chance of rain and snow in the morning, then slight chance of snow in the afternoon. Waves 4 to 6 ft occasionally to 8 ft.
Sunday night..Northwest winds 10 to 15 kt. Mostly cloudy in the evening then clearing. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.

No data

7 Day Forecast for Marine Location Near Gary, IN
   Hourly   EDIT   Help   Map

Area Discussion for - Chicago, IL
      (on/off)   Help   
NOTE: mouseover dotted underlined text for definition

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 606 AM CST Sat Dec 9 2023

Issued at 250 AM CST Sat Dec 9 2023

Through tonight...

Key Messages:

* Showers gradually ending after daybreak this morning.

* Gusty SW winds (potentially up to 40 mph) develop ahead of cold front early this morning (mainly E of I-55).

* Spotty showers/flurries possible (15% chance) late this afternoon into the early evening.

A band of showers is currently progressing northeast across the area early this morning. A few embedded lightning strikes had been observed along the leading edge but have since dissipated.
Showers will continue to lift northeast through daybreak with any lightning remaining mainly south of the the area across portions of central Illinois. A trailing axis of rain behind the front extending from northwest Missouri into central Wisconsin will be slower to lift northeast, likely resulting in precipitation lingering into the daylight hours, especially across far northern Illinois.

Winds remain gusty ahead of the line of showers early this morning but observations have yet to reach 35 mph. The potential remains for gusts to gradually increase up to 40 mph out of the southwest in advance of the surface cold front over the next few hours as it progresses across the area in response to slight pressure falls. Winds then turn westerly behind the front after daybreak, remaining gusty through the day across the area around 20-30 mph.

Only change to the short term forecast was to introduce slight chances (20%) for spotty showers late this afternoon and evening when cloud depths becomes deep enough to support precipitation coincident with a mid-level vort max pivoting overhead as it rounds the upper low. Cloud temperatures may become just cold enough to squeeze out a few flurries as well early in the evening (6-8pm).

Temperatures remain fairly steady through the daylight hours as weak cold advection matches the diurnal warming of the day.
Temperatures then steadily decrease after sunset with overnight lows in the upper 20s to lower 30s.


Issued at 245 AM CST Sat Dec 9 2023

Sunday through Friday...

Key Messages:

* Turning cooler though still seasonable the first half of next week then moderating midweek.

* Mainly dry conditions are forecast for much of next week.

Amplified upper troughing will be translating across the area on Sunday as the associated surface low races northeast across eastern Canada. Another trailing vort max will bring the potential for a few flurries and spotty snow showers during the day on Sunday (currently 10% chance) with lake effect rain/snow showers grazing northern Porter County. This may need to be added to the official forecast with later updates if confidence in more widespread snow showers/flurries increases.

Cooler (albeit seasonable) and dry weather then prevails through the majority of the week as high pressure sets up over the region and upper troughing remains northeast of the region. Temperatures begin to moderate mid-late week with highs in the 40s as mid- level ridging expands overhead. Precipitation chances (30%) return later in the week heading into the weekend as a Central Plains closed upper low approaches the region.


For the 12Z TAFs...

* Rain should be tapering off shortly after sunrise, or by mid- morning at the latest.

* South winds switch to west after 13Z and remain gusty through early Sunday morning.

A cold front which brought rainfall to the area overnight will push through the region early this morning, bringing an end to the showers and turning winds westerly through the remainder of the forecast period. Gusts into the mid to upper 20s appear likely, but so far the upstream observations have not been showing much above that. IFR ceilings should yield to MVFR for most of the period, but with a broad area of VFR presently observed behind the front, elected to carry several hours of better conditions despite the concern that some of the lower level cloudiness will start filling back in.


Small Craft Advisory
Winthrop Harbor IL to Gary IN until 10 PM Saturday.

Small Craft Advisory...Gary to Michigan City IN until 4 AM Monday.

Weather Reporting Stations
   EDIT       (on/off)   Help
Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
BHRI3 - Burns Harbor, IN 10 mi65 min WSW 11G17 52°F 29.73
CMTI2 - 9087044 - Calumet, IL 12 mi45 min WNW 7G19 48°F 44°F
CNII2 19 mi30 min W 15G19 47°F 40°F
CHII2 - Chicago, IL 21 mi25 min W 28G32 49°F 45°F
MCYI3 - Michigan City, IN 22 mi25 min WSW 24G28 48°F 29.7345°F
OKSI2 22 mi105 min NW 4.1G11 49°F

toggle option: (graph/table)

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KGYY GARY/CHICAGO INTL,IN 7 sm60 minW 1010 smMostly Cloudy61°F57°F88%29.65
KIGQ LANSING MUNI,IL 16 sm30 minW 12G1910 smOvercast46°F39°F76%29.77
KVPZ PORTER COUNTY RGNL,IN 23 sm24 minWSW 16G2310 smOvercast48°F45°F87%29.78
KMDW CHICAGO MIDWAY INTL,IL 24 sm52 minW 19G2910 smMostly Cloudy48°F43°F81%29.73

Wind History from GYY
(wind in knots)

Tide / Current for
   EDIT      (on/off)   Help

Weather Map
       (on/off)   Help

GEOS Local Image of great lakes   

Chicago, IL,

NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE