Marine Forecasts

    EDIT      (on/off)   Help

---

7 Day Forecast for Marine Location Near La Porte, IN

   Hourly   EDIT   Help

---

Area Discussion for - Northern Indiana, IN

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KIWX 071142 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 642 AM EST Sat Dec 7 2019

SYNOPSIS. Issued at 342 AM EST Sat Dec 7 2019

Quiet weather is are expected through the weekend as high pressure dominates. After early morning lows near 20, highs will rise to near 40 today and then near 50 Sunday. Chances for rain will increase Sunday night, transitioning to much colder temperatures and chances for lake effect snow showers Tuesday into Wednesday.

SHORT TERM. (Today through Sunday) Issued at 340 AM EST Sat Dec 7 2019

High pressure was over the area early this morning and had allowed temperatures to drop to near 20 degrees. Skies will stay mostly clear today with the high over the region and be accompanied by reasonably mild weather with highs near 40. Return flow will increase Sunday with highs reaching close to 50. Have kept Sunday dry for now; however, rain should develop rapidly Sunday night ahead of the next system.

LONG TERM. (Sunday night through Friday) Issued at 340 AM EST Sat Dec 7 2019

Many changes are ahead for early next week. Temperatures will start off very mild Monday with rain ahead of a strong cold front. The front is expected to move across the forecast area late Monday and Monday night with a flash freeze possible (meaning temperatures will fall so fast that water on roads may freeze and cause travel issues Monday night). Most of the rain from the system will end before temperatures fall below freezing; however, remaining rain will change to snow Monday night and quickly transition to lake effect snow as much colder air spreads over the relatively warm waters of Lake Michigan. Lake effect snow should develop rapidly Monday night and persist into Wednesday afternoon, and possibly through Wednesday night as delta T values rise to near 25. At this time it looks like system snow will be relatively light of less than an inch, but the potential for heavy lake effect snow exists, especially over far southern Lower Michigan given a more west fetch expected. The initial run through of total snow amounts by early Thursday appears to be in the range of 3 to 6 inches from Berrien into west St Joe counties (Michigan) with lesser amounts south over Indiana. As far as temperatures, kept both lows and highs on the low end of model guidance with lows Tuesday night and Wednesday night around 10 to 15 and highs Wednesday around 20. Temperatures may fall well below 10 degrees where skies clear out and where snow cover exists.

AVIATION. (For the 12Z TAFS through 12Z Sunday Morning) Issued at 639 AM EST Sat Dec 7 2019

VFR conditions persist through the period. Strong surface ridge across the southern Great Lakes region providing dry/subsident airmass. Modest return southerly flow develops late Sunday morning as the ridge shifts eastward into western Pennsylvania.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . Small Craft Advisory from 10 PM this evening to 4 PM EST Sunday for LMZ043-046.



SYNOPSIS . Steinwedel/Skipper SHORT TERM . Skipper LONG TERM . Skipper AVIATION . Murphy

Visit us at www.weather.gov/iwx

Follow us on Facebook . Twitter . and YouTube at: www.facebook.com/NWSNorthernIndiana www.twitter.com/nwsiwx www.youtube.com/NWSNorthernIndiana

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
MCYI3 - Michigan City, IN	14 mi	30 min	SSE 8 G 9.9	28°F				22°F
SJOM4 - St. Joseph, MI	37 mi	80 min	SSE 5.1 G 8	27°F			1028.8 hPa (-0.3)
CMTI2 - 9087044 - Calumet, IL	45 mi	50 min	S 5.1 G 8	28°F			1028.1 hPa	25°F

Wind History for Calumet Harbor, IL

(wind in knots)    EDIT      (on/off)   Help

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

3 AM

4 AM

5 AM

6 AM

7 AM

Last 24hr

NW17 G23

N16 G25

N15 G22

NW12 G19

NW13 G19

NW11 G16

N11 G14

N9

N8

N6

N5

N3

NE4

NE4

--

SW2

S4

S4

S9

SW2

SW2

SE1

S3

S6

1 day ago

SW3

SW4

S4

S8

S8 G11

S9 G12

S10

S9 G13

S8 G13

S5 G8

S6 G9

S7 G10

S9 G12

S5 G8

S6 G9

SW6

SW6 G10

SW5 G8

SW4 G9

W3 G8

N10 G13

NW12 G18

N20 G27

NW16 G25

2 days ago

W5 G14

SW10 G18

W8 G15

W6 G17

W8 G18

W11 G18

W8 G16

W6 G17

W6 G13

W6 G11

W8 G15

W6 G10

W6

NW7 G12

W2

W3

SW3

SW3

SW5

SW5

SW4

SW3

S3

SW3

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Michigan City Municipal Airport, IN	10 mi	25 min	S 4	10.00 mi	Overcast	28°F	28°F	100%	1029.8 hPa
Starke County Airport, IN	18 mi	25 min	SE 3	10.00 mi	Fair	19°F	17°F	93%	1029.5 hPa
Valparaiso Porter County Municipal Airport, IN	19 mi	84 min	N 0	2.00 mi	Fog/Mist	19°F	16°F	88%	1030.2 hPa
South Bend International Airport, IN	22 mi	26 min	SSE 4	10.00 mi	Overcast	25°F	21°F	85%	1030.7 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)

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

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

Last 24hr

N15 G20

N12 G19

N11 G18

N11 G16

N11 G19

N8

N10 G14

N8

N7

N7

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

S6

Calm

Calm

Calm

Calm

Calm

1 day ago

SW3

Calm

SW4

SW5

S6

S6

S8

S4

S4

S6

S4

S5

S7

S10

SW12 G17

SW9

S4

SW5

W6

W6

NW7

N14 G21

N17 G22

N17 G23

2 days ago

W5 G14

W8 G18

W12 G17

W12 G16

W12 G20

NW14 G19

NW10 G17

NW9 G17

NW9 G15

NW8 G14

N9 G15

N10 G16

N9

NW10 G15

N11 G19

NW9 G15

NW5 G14

NW8

NW6

NW4

W3

SW5

Calm

Calm

---

Tide / Current Tables for

   EDIT   Weekend mode (on/off)   (on/off)   Help

---

Tide / Current Tables for

   EDIT      (on/off)   Help

---

Weather Map

       (on/off)   Help Weather Map

---

GEOS 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 Northern Indiana, IN (9,2,3,4)

      (on/off)   Help

---

Ground Weather Radar Station Northern Indiana, IN

   (on/off)   Help

---

Cookie Policy: This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. 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.