Saturday, July24, 2021
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Marine Weather and Tides
Pottawattamie Park, 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 5:33AMSunset 8:15PM Saturday July 24, 2021 4:06 PM CDT (21:06 UTC) Moonrise 9:12PMMoonset 5:49AM Illumination 100% Phase: Full Moon; Moon at 15 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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LMZ046 Expires:202107250430;;387483 Fzus53 Kiwx 241836 Nshiwx Nearshore Marine Forecast National Weather Service Northern Indiana 236 Pm Edt Sat Jul 24 2021 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz043-046-250430- New Buffalo Mi To St Joseph Mi-michigan City In To New Buffalo Mi- 236 Pm Edt Sat Jul 24 2021
Tonight..Southwest wind 5 to 15 knots veering west after midnight. Mostly cloudy through midnight then clearing. Chance of showers and Thunderstorms through midnight. Waves 1 to 3 feet.
Sunday..Northwest wind 5 to 10 knots backing west in the afternoon. Mostly Sunny. Waves around 1 foot.
Sunday night..Southwest wind 5 knots veering west after midnight. Mostly clear. Waves 1 foot or less.
Monday..Northwest wind 5 knots. Mostly Sunny. Waves around 1 foot. The water temperature at st. Joseph is 72 degrees and at michigan city is 69 degrees.
LMZ046


7 Day Forecast for Marine Location Near Pottawattamie Park, IN
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location: 41.73, -86.89     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 241817 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 216 PM EDT Sat Jul 24 2021

SYNOPSIS. Issued at 216 PM EDT Sat Jul 24 2021

Developing thunderstorms northwest this afternoon will expand east and south through evening before ending overnight. Some could be severe with damaging winds north of highway 24. Otherwise dry, warm and less humid conditions return Sunday.

SHORT TERM. (This afternoon through Sunday) Issued at 216 PM EDT Sat Jul 24 2021

Prefrontal trough extending from wrn MI into ern IL and becoming the focus for renewed/vigorous convective development by 20Z nw zones nw IN - srn MI. This likely to composite in with additional storms 23- 00Z along lagging sfc trough and then sag swd across the cwa this evening. Late aftn/early evening storms hold a continued threat for damaging winds where most robust multi-cell clusters track. Otherwise trailing/weak sfc front will drop toward the OH river overnight with little fanfare as upstream anticyclone across the plains settles into the mid MS valley Sunday. Good post frontal moisture scour Sunday will counter strong subsidence warming so while some 90s likely apparent temps will lag as dewpoints mix out into the low 60s in the aftn.

LONG TERM. (Monday through Friday) Issued at 216 PM EDT Sat Jul 24 2021

Dry, warm and tranquil through Wed as sfc ridge settles into the TN valley. Continued stout low level thermal ridge in place stemming from hot plains upper ridge will yield warm temps with 90s a good bet again.

Next vigorous nrn stream sw driving through Hudson Bay late period will release another weakening sfc frontal zone sewd across the lakes/OH valley late Wed into Thu with accompanying showers/storms then.

AVIATION. (For the 18Z TAFS through 18Z Sunday Afternoon) Issued at 123 PM EDT Sat Jul 24 2021

Some nuisance showers and eventually thunderstorms continue to form in advance of an approaching front towards this evening. These may be able to briefly drop VIS down into IFR and CIGs into MVFR, but they are moving quick enough and come accompanied by relatively little confidence on exact placement that will have to handle that with future amendments down the road. Greater confidence comes with the arrival of the front that showers and storms will move through along, again with MVFR conditions with the potential to become IFR, should the storms move over the airport. Storm intensity likely wanes as they move south and east and we get farther into the night so will not bring FWA's conditions down into IFR until we get closer to storm initiation time.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . NONE.

SYNOPSIS . T SHORT TERM . T LONG TERM . T AVIATION . Roller

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MCYI3 - Michigan City, IN 1 mi37 min SSW 16 G 19 87°F 1009.4 hPa72°F
45170 4 mi27 min SW 9.7 G 12 79°F 1 ft74°F
BHRI3 - Burns Harbor, IN 15 mi87 min SW 9.9 G 12 88°F 1011.5 hPa
45026 - St. Joseph, MI 23 mi27 min S 7.8 G 9.7 77°F 73°F1 ft1010.1 hPa71°F
CMTI2 - 9087044 - Calumet, IL 34 mi49 min SSW 11 G 21 1010.1 hPa
JAKI2 36 mi127 min WSW 14 G 19 91°F
CHII2 - Chicago, IL 38 mi37 min WSW 19 G 23 90°F 74°F
CNII2 39 mi22 min S 8 G 18 91°F 69°F
OKSI2 41 mi127 min SSE 1.9 G 5.1 93°F
45174 49 mi27 min SW 14 G 18 73°F2 ft1008.4 hPa

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN4 mi72 minSW 11 G 1610.00 miFair88°F73°F62%1011.5 hPa
Valparaiso Porter County Municipal Airport, IN20 mi71 minSSW 109.00 miFair86°F76°F72%1011.5 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)
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Last 24hrCalmCalmCalmSE3SE5CalmCalmS4S4S5SW5S5SW7S6S6S6SW7SW7SW8SW9SW10SW11
G17
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1 day agoCalmCalmCalmCalmCalmCalmS4S4S4S5S5S5S5S5SW5SW4S3SW3SW5W7CalmNW4CalmS5
2 days agoN6N6N5N5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3S5S4SW5W7SW4CalmCalm

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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