Tuesday, July7, 2020
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Marine Weather and Tides
Whiting, IN

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:21AMSunset 8:29PM Tuesday July 7, 2020 8:25 PM CDT (01:25 UTC) Moonrise 10:36PMMoonset 7:40AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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:202007080315;;479303 Fzus63 Kmkx 071955 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 255 Pm Cdt Tue Jul 7 2020 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.. Primarily light southerly winds continue today with scattered storms weakening as they push over the lake but some breezy conditions are possible right along the western shoreline. Mostly quiet conditions are expected for Wednesday with weak high pressure of 29.9 inches over michigan with primarily light southerly winds expected. Southerly winds Thursday will be a bit more breezy prior to the front pushing through and bringing back light northwest flow Friday. && lmz080-669-671-673-675-777-779-870-872-874-876-878-080315- 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- 255 pm cdt Tue jul 7 2020 sheboygan wi to pentwater mi south...
Tonight..South winds 5 to 10 kt becoming southeast. Slight chance of showers and Thunderstorms this evening. Waves 1 ft or less.
Wednesday..Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft.
Wednesday night..Southeast winds 10 to 15 kt becoming south. Waves 1 to 2 ft.
Thursday..South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft.
Thursday night..South winds 10 to 15 kt becoming southwest. Chance of showers and Thunderstorms. Waves 1 to 2 ft.
Friday..West winds 10 to 15 kt becoming northwest. Chance of showers and Thunderstorms in the morning, then chance of Thunderstorms in the afternoon. Waves 1 to 2 ft.
Friday night..Northwest winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft.
Saturday..Northwest winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 3 ft.
Sunday..North winds 10 to 20 kt. Chance of showers and Thunderstorms. 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 080005 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 705 PM CDT Tue Jul 7 2020

SHORT TERM. 248 PM CDT

Through Wednesday night .

A generally uncapped environment has been common across much of the CWA early this afternoon, though sources of lift, low-level mixing and mid-level dry air entrainment have limited cumulus growth for most area. A subtle and small kink in the mid-levels evident in WV imagery was the apparent extra trigger for strong convection over northwest Indiana over the past two hours. Since surface moisture was a little higher (dew points around 70F) compared to most of the Illinois portion of the CWA (mid to upper 60s dew points), deeper vertical growth was achieved there. Additional pockets of towering cumulus continue to show up on satellite across the remainder of the CWA, most notably on the lake breeze in Cook County. With a lack of deeper forcing for the next couple hours, development should be somewhat limited away from the lake breeze and any remnant outflow boundaries from storms over the past couple hours.

Rapid development of convection ahead of a pronounced MCV across northeast Iowa has occurred in the past hour across southeast MN and southwest WI. This activity is expected to slowly drift east through the remainder of the afternoon amidst weak deep-layer flow. While substantial cold pool development is not expected, outflow from this activity combined with a trailing trough into eastern Iowa will become a renewed focus for convection moving into the CWA early this evening. With mid-level lapse rates becoming more unfavorable with eastward extent, overall coverage and intensity of the activity should diminish with time. Ultimately, residual thunderstorms may reach north-central IL prior to sunset, with possibly some remnant showers surviving into the Chicago metro close to midnight.

A mid-level ridge axis drifting over the CWA Wednesday morning will shift far enough east by the afternoon to allow capping from the subsidence inversion to weaken. While slight capping should remain, isolated convection could develop where focused convergence exists. Primarily this would be along the Lake Michigan lake breeze and any potential remnant outflow boundaries from convection this evening.

Little change was made to the temperature forecast for Wednesday as the warm stretch continues. With weaker capping in place, daytime mixing should at least lower afternoon dew points a couple degrees from the morning hours as has been the case for several days now. Max temps in the 92-94 range inland combined with afternoon dew points in the upper 60s will produce heat index values in the 95- 100F range.

Kluber

LONG TERM. 254 PM CDT

Thursday through Tuesday .

Thursday will be similar to Wednesday with hot and humid conditions remaining, with high temps perhaps a smidge lower than before due to increasing cloud cover. Thursday evening into Friday, shower and thunderstorm chances will increase as an upper-level wave and perhaps a convectively-generated MCV approaches from the west. Depending on the timing of the wave, a few "pulsey" strong to severe storms look possible with frequent lightning, torrential downpours, small hail, and wind gusts strong enough to down tree limbs as the main risks.

This weekend, the Great Lakes will be positioned beneath weak upper- level troughing leading to a break in the hot and humid conditions. Sunday appears to be the coolest day with highs topping off in the mid to upper 80s as a secondary cold front sneaks in from the north. Hazardous swimming conditions may develop in the wake of the front for Lake Michigan beaches Sunday afternoon and evening.

Borchardt

AVIATION. For the 00Z TAFs .

Isolated thunderstorms remain possible along the lake breeze over the next couple of hours for the Chicago area terminals so will hold on to a VCTS mention. Wind directions may be somewhat variable over the next few hours with multiple outflow boundaries interacting with each other and the lake breeze.

A line of scattered convection is slowly drifting east southeast into northern Illinois and will likely reach RFD within the hour. The resultant outflow boundary from this area of thunderstorms will likely continue progressing southeast across the area this evening. There is some uncertainty with how it will interact with the lake breeze but have included a wind shift out of the north northwest around 2Z to account for this potential.

Once thunderstorms diminish this evening conditions should be relatively quiet with light and mostly variable winds. Additional isolated thunderstorms cannot be ruled out along the lake breeze tomorrow afternoon but will hold off on a formal mention with this issuance.

Petr

LOT WATCHES/WARNINGS/ADVISORIES. IL . None. IN . None. LM . None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHII2 - Chicago, IL 14 mi36 min E 5.1 G 6 81°F 77°F
CNII2 16 mi41 min NNE 1.9 G 7 80°F 71°F
CMTI2 - 9087044 - Calumet, IL 17 mi56 min E 5.1 G 6 82°F 1012.7 hPa74°F
45170 21 mi46 min 1.9 G 3.9 81°F 76°F
45174 24 mi26 min SSE 3.9 G 3.9 79°F 78°F1 ft1012.9 hPa75°F
MCYI3 - Michigan City, IN 24 mi36 min NE 1.9 G 1.9 81°F 75°F
SJOM4 - St. Joseph, MI 45 mi86 min NNW 1 G 1.9 88°F 1014.6 hPa (+0.4)
45187 48 mi46 min SW 3.9 G 5.8 80°F 77°F1 ft

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gary Regional Airport, IN20 mi41 minSE 310.00 miPartly Cloudy86°F71°F62%1013.5 hPa

Link to 5 minute data for KGYY

Wind History from GYY (wind in knots)
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Last 24hrE4SE4CalmS4CalmCalmCalmCalmSE3CalmCalmSW3CalmW3W644N8SE10SE5SE5SE4SE4SE3
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE85N6N8NE8E8NE7E5
2 days agoN4CalmCalmCalmN3N4N4N4CalmCalmCalmCalmCalmCalmN8NE6NE7N8N7N6NE5NE6E6E4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of Midwest    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.
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Wind Forecast for Chicago, IL (21,6,7,8)
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Ground Weather Radar Station Chicago, IL
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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 numerous 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.