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Marine Weather and Tides
Version 3.4 |
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 6:14AM | Sunset 5:50PM | Sunday March 7, 2021 5:14 PM CST (23:14 UTC) | Moonrise 3:48AM | Moonset 12:45PM | Illumination 32% | ![]() |
LMZ740 Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 345 Pm Cst Sun Mar 7 2021
Tonight..Southeast winds 15 to 20 kt becoming south this evening then southwest 15 to 25 kt overnight. Partly cloudy. Waves 3 to 5 ft.
Monday..Southwest winds 15 to 25 kt becoming west 10 to 20 kt in the afternoon. Mostly Sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.
Monday night..Northeast winds 5 to 10 kt becoming southeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 ft or less.
Tuesday..South winds 10 to 20 kt increasing to 20 to 25 kt in the afternoon. Partly Sunny. Waves building to 2 to 4 ft.
Tonight..Southeast winds 15 to 20 kt becoming south this evening then southwest 15 to 25 kt overnight. Partly cloudy. Waves 3 to 5 ft.
Monday..Southwest winds 15 to 25 kt becoming west 10 to 20 kt in the afternoon. Mostly Sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.
Monday night..Northeast winds 5 to 10 kt becoming southeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 ft or less.
Tuesday..South winds 10 to 20 kt increasing to 20 to 25 kt in the afternoon. Partly Sunny. Waves building to 2 to 4 ft.
LMZ740 Expires:202103080400;;626770
FZUS53 KLOT 072145
NSHLOT
NEARSHORE MARINE FORECAST
National Weather Service Chicago/Romeoville IL
345 PM CST Sun Mar 7 2021
For waters within 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 waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
LMZ740>742-080400-
7 Day Forecast for Marine Location Near North Chicago, IL
Hourly EDIT Help
location: 42.35, -87.79 debug
Area Discussion for - Chicago, IL
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionNOAA seems to be down. You can click on "Area Discussion" above and see the information on their site.
ftp://tgftp.nws.noaa.gov/data/raw/fx/fxus63.klot.afd.lot.txt
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
WHRI2 - Waukegan Harbor, IL | 1 mi | 134 min | S 8.9 G 12 | 38°F | ||||
KNSW3 - Kenosha, WI | 17 mi | 74 min | SSE 9.9 G 12 | 37°F | 1026.8 hPa (-2.0) | |||
FSTI2 | 27 mi | 134 min | 38°F | |||||
CHII2 - Chicago, IL | 32 mi | 44 min | ESE 8.9 G 12 | 37°F | 32°F | |||
OKSI2 | 32 mi | 134 min | ESE 8 G 9.9 | 42°F | ||||
CNII2 | 35 mi | 29 min | SE 2.9 G 4.1 | 38°F | 29°F | |||
CMTI2 - 9087044 - Calumet, IL | 45 mi | 56 min | S 7 G 9.9 | 1026.6 hPa | ||||
MLWW3 - Milwaukee, WI | 46 mi | 34 min | SSE 11 G 13 | 37°F |
Wind History for Calumet Harbor, IL
(wind in knots) EDIT (on/off)  Help5 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 | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
Last 24hr | NE | NE | E | NE | -- | -- | S | -- | S | E | E G8 | SE | S | S | SE | S | SE G10 | S G10 | S G9 | E | E | E | E | S G12 |
1 day ago | N G11 | N | NW | NW | NW | SW | SW | SW | S | W | SW | SW | SE | S | S | S | SE | S G9 | NE G12 | NE | NE | NE G11 | NE G12 | NE |
2 days ago | N G17 | N G18 | N G17 | N G18 | N G19 | N G16 | N G13 | NE G12 | NE G12 | N | NE | NE | NW | W | W | S | W | NE | E | E | N | NE G11 | N G11 | N G9 |
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 |
Chicago/Waukegan Regional Airport, IL | 6 mi | 19 min | SSE 9 | 10.00 mi | Fair | 40°F | 26°F | 58% | 1027.6 hPa |
Kenosha, Kenosha Regional Airport, WI | 18 mi | 21 min | SSE 9 | 10.00 mi | Fair | 42°F | 26°F | 53% | 1027.2 hPa |
Chicago / Wheeling, Pal-Waukee Airport, IL | 18 mi | 22 min | S 10 | 10.00 mi | Fair | 52°F | 27°F | 38% | 1027.5 hPa |
Link to 5 minute data for KUGN
Wind History from UGN (wind in knots)
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 | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
Last 24hr | Calm | Calm | Calm | Calm | SW | SW | SW | Calm | NE | Calm | Calm | SE | Calm | SW | S | S | S | SE | SE | SE | SE | SE | SE | SE |
1 day ago | NE | Calm | Calm | SW | SW | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NE | NE | E | E | E | Calm | E | ||
2 days ago | N | N | N | Calm | N | Calm | Calm | N | Calm | W | NW | W | NW | W | NW | NW | NW | N | NW | NE | NE | NE | NE |
Tide / Current Tables for
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EDIT (on/off)  HelpWeather Map
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GEOS Local Image of EDIT
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.
Link to Loop

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