Marine Forecasts

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7 Day Forecast for Marine Location Near Long Beach, IN

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Area Discussion for - Northern Indiana, IN

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FXUS63 KIWX 181214 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 714 AM EST Sat Jan 18 2020

SYNOPSIS. Issued at 300 AM EST Sat Jan 18 2020

A wintry mix of snow, sleet, and freezing rain will change to all rain this morning. This will make for difficult travel conditions this morning. Much colder air and gusty winds are then expected to filter back into the area later this afternoon into tonight behind a cold front. This will set the stage for lake effect snow showers tonight through Sunday night, mainly across far northern Indiana and southwest Lower Michigan where light snow accumulations will be possible. High temperatures today will top out near 40 degrees. Lows tonight will drop into the single digits and teens, with highs on Sunday only in the mid teens to low 20s. Next week will feature a quiet weather pattern and slowly moderating temperatures.

SHORT TERM. (Today) Issued at 300 AM EST Sat Jan 18 2020

Trend from a wintry mix to freezing rain to rain will take place this morning from sw to ne as strong corridor of deep isentropic ascent in warm conveyor lifts through in advance of a well defined mid level shortwave. Expectations are for the surface freezing line to reach most locations south of US 30 by daybreak, central portions btw 12-14z, and far northeast zones by late morning. Additional ice accretions up to 0.20" across the entire area, and some additional snow/sleet accums in ne IN/far nw OH/sc Lower MI, will continue to create difficult travel until sfc temps warm above freezing. No changes made to the Winter Weather Advisory at this time.

Stripping away of moisture in mid levels and influx of warmer sfc temps may lead to more of a drizzle setup by the middle of the day before the system cold front swings through from west to east mid- late afternoon. A favorable isallobaric component and strong CAA will result in gusty west winds post-frontal, though gusts are mainly expected to remain below advisory criteria. This environment, steepening low level lapse rates and enough lingering synoptic moisture could be enough to drive some squally weather (snow & rain showers) for a time mid afternoon through early evening.

LONG TERM. (Tonight through Friday) Issued at 300 AM EST Sat Jan 18 2020

Attention tonight through Monday will turn to a relatively brief shot of some cold air and chances for lake effect snow showers into mainly our wnw flow belts. Low pressure will track east through New England by Sunday, with leftover trough axis across the Northern Lakes expected to pivot south through the local area late Sunday into Sunday night. Lake MI will no doubt activate in this cold/cyclonic flow regime, with the main period of interest for lake enhanced snow accums with the secondary area of convergence to drop through late Sunday-Sunday night. Otherwise, not overly impressive thermodynamic parameters, and mainly westerly flow in the convective layer, should keep activity more multi-banded and disorganized most of the period(s).

High pressure then builds in by Tuesday, with temps once again recovering to above normal values mid-late week as high pressure settles toward the East Coast and benign split flow emerges across the Lower 48. A system by around late Thursday-Friday will bring the next chance for rain.

AVIATION. (For the 12Z TAFS through 12Z Sunday Morning) Issued at 708 AM EST Sat Jan 18 2020

A very strong low level jet was helping to change the wintry mix to just rain. Lingering freezing rain at the terminals should become all rain just past the start of the TAFs as warm air advection increases. Precipitation should be just rain until colder air moves back into the area this afternoon with gusty winds.

IWX WATCHES/WARNINGS/ADVISORIES. IN . Winter Weather Advisory until 9 AM EST this morning for INZ004- 005-008-014-016>018.

Winter Weather Advisory until 11 AM EST this morning for INZ006- 007-009.

Lakeshore Flood Warning until 6 PM CST Sunday for INZ003.

MI . Winter Weather Advisory until 9 AM EST this morning for MIZ077.

Winter Weather Advisory until 11 AM EST this morning for MIZ078>081.

Lakeshore Flood Warning until 7 PM EST Sunday for MIZ077.

OH . Winter Weather Advisory until 9 AM EST this morning for OHZ015- 016-024-025.

Winter Weather Advisory until 11 AM EST this morning for OHZ001- 002-004-005.

LM . Heavy Freezing Spray Warning from 4 PM this afternoon to 7 PM EST Sunday for LMZ043-046.

Gale Warning until 7 AM EST Sunday for LMZ043-046.



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

Visit us at www.weather.gov/iwx

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
MCYI3 - Michigan City, IN	2 mi	38 min	SSE 15 G 22	36°F				35°F
SJOM4 - St. Joseph, MI	32 mi	58 min	Calm G 0	33°F			1006.8 hPa
CMTI2 - 9087044 - Calumet, IL	35 mi	58 min		35°F			1005.8 hPa (-5.0)	35°F
CHII2 - Chicago, IL	39 mi	38 min	S 17 G 19	35°F				35°F
CNII2	40 mi	28 min	S 8 G 12	35°F				34°F

Wind History for Calumet Harbor, IL

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8 AM

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E11 G16

E12 G15

E11 G15

SE9 G12

E10 G13

SE10 G13

SE8 G12

SE10 G13

SE6 G9

E11 G16

E9 G16

SE12 G18

E16 G22

SE21 G27

SE17 G23

SE13 G20

SE16 G22

SE13 G23

SE10 G18

SE7 G10

SE6 G9

SE6 G9

SE7 G13

S10 G16

1 day ago

W7 G15

W8 G14

NW7 G15

W7 G12

NW9 G12

W3 G11

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W5

NE7

NE9 G12

NE6 G11

E9 G12

E11 G14

E10 G13

2 days ago

E8 G11

E6 G9

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NE4

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N3

N2

W3 G6

W4 G11

W9 G12

W4 G10

W5 G10

W5 G11

W7 G11

W7 G12

W8 G17

W8 G14

W7 G17

W9 G17

W6 G12

W9 G16

W8 G14

W8 G18

W5 G13

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Michigan City Municipal Airport, IN	4 mi	63 min	S 9 G 14	10.00 mi	Overcast	34°F	33°F	100%	1006.8 hPa
Valparaiso Porter County Municipal Airport, IN	21 mi	2 hrs	SSE 10 G 18	3.00 mi	Light Rain Fog/Mist	34°F	30°F	89%	1009.5 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)

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E5

SE7

SE10 G20

SE10 G16

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SE8 G14

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SE7 G15

E6

SE7 G14

SE11 G24

SE10 G18

SE13 G21

SE8 G17

SE10 G18

S5 G19

SE9

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S8 G16

1 day ago

W12 G16

NW9 G15

NW11 G19

NW12 G19

NW10 G17

NW10 G18

NW11 G17

NW7

NW8 G14

NW8 G16

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N7 G14

N9

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Calm

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2 days ago

Calm

E3

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SE6

Calm

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W5

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NW5

NW7 G15

NW9 G16

NW10 G16

NW13 G19

NW12 G18

NW10 G15

W9

NW9 G17

W10

W10 G16

W11 G16

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Tide / Current Tables for

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Tide / Current Tables for

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Weather Map

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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

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Wind Forecast for Northern Indiana, IN (8,2,3,4)

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Ground Weather Radar Station Northern Indiana, IN

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