Monday, September20, 2021
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Marine Weather and Tides
Bloomingdale, MI

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 7:28AMSunset 7:46PM Monday September 20, 2021 1:48 AM EDT (05:48 UTC) Moonrise 7:03PMMoonset 5:51AM Illumination 98% Phase: Waxing Gibbous; Moon at 14 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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LMZ845 South Haven To Holland Mi- 1005 Pm Edt Sun Sep 19 2021
.small craft advisory in effect from Monday afternoon through Tuesday morning...
Rest of tonight..Southeast winds 15 to 20 knots. Partly cloudy through about 2 am then becoming mostly cloudy. Waves around 1 foot.
Monday..South winds 15 to 25 knots. Mostly cloudy with a chance of showers and Thunderstorms. Waves 2 to 3 feet.
Monday night..South winds to 30 knots. Rain showers and a chance of Thunderstorms. Waves 4 to 6 feet building to 5 to 7 feet toward daybreak.
Tuesday..West winds around 20 knots veering northwest. Rain showers likely and a chance of Thunderstorms. Waves 4 to 6 feet.
Tuesday night..North winds around 20 knots. Mostly cloudy with a slight chance of rain showers. Waves 3 to 5 feet.
Wednesday..North winds 20 to 25 knots. Partly Sunny. Waves 3 to 5 feet.
Thursday..North winds 15 to 20 knots. Mostly Sunny with a chance of rain showers. Waves 2 to 3 feet.
Friday..Southwest winds 10 to 20 knots. Sunny. Waves 2 to 4 feet.
LMZ845 Expires:202109200900;;882378 FZUS53 KGRR 200205 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1005 PM EDT Sun Sep 19 2021 For waters within five nautical miles of shore on Lake Michigan LMZ845-200900-


7 Day Forecast for Marine Location Near Bloomingdale, MI
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location: 42.45, -86     debug


Area Discussion for - Grand Rapids, MI
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FXUS63 KGRR 200528 AFDGRR

Area Forecast Discussion National Weather Service Grand Rapids MI 128 AM EDT Mon Sep 20 2021

LATEST UPDATE . Aviation

SYNOPSIS. Issued at 328 PM EDT Sun Sep 19 2021

- Upper Troughing Moves East with Heavy Rain Tuesday and showers lingering into Thursday

DISCUSSION. (This evening through next Sunday) Issued at 328 PM EDT Sun Sep 19 2021

There is better forecast confidence today in the details as models are converging towards the sharp trough axis cutting off into an upper low and troughing persisting across the Great Lakes region through the end of the week.

We have been watching Gulf moisture that is the remnants of a tropical cyclone slowly moving northward the past couple days. A line of showers and thunderstorms across southern Indiana this afternoon mark the leading edge and the CAMs forecast showers to reach southern Lower Michigan Monday morning and spread north across the forecast area by afternoon. Coverage is expected to be less than currently seen, but precipitable water values spike up to over 1.5 inches by late afternoon and heavy rainfall rates are possible with any deep updrafts. SHear profiles are weak and severe weather threat is low.

Surface cold front plods across the forecast area from west to east on Thursday morning and afternoon. We expect basin average rainfall of around an inch with some 2 inch amounts possible across the southeast forecast area. Rivers should be able to handle this as they are near their lowest levels of the year.

Upper low lingers on Thursday with scattered showers and temperatures stuck in the 50s as much cooler air is drown south and clouds and showers prevent much in the way of warming. The upper low departs by the weekend with generally fair but cool weather through Sunday.

AVIATION. (For the 06Z TAFS through 06Z Monday night) Issued at 125 AM EDT Mon Sep 20 2021

Low pressure will approach from the south today and we'll likely see light rain showers develop from south to north this morning. A little more instability will develop this afternoon and a few storms could develop after 18z near the eastern terminals of LAN/BTL/JXN. Given high dewpoints, some fog will develop tonight.

MARINE. Issued at 328 PM EDT Sun Sep 19 2021

South winds ramp up on Monday with gales expected north of Holland by Monday evening, so we will have a Gale Warning for that area into Tuesday morning. There could be a lull Tuesday afternoon but winds and waves may be hazardous to small craft through Thursday.

GRR WATCHES/WARNINGS/ADVISORIES. MI . Beach Hazards Statement from noon EDT today through Thursday morning for MIZ037-043-050-056-064-071.

LM . Gale Warning from 8 PM this evening to 8 AM EDT Tuesday for LMZ846>849.

Small Craft Advisory from noon today to 8 AM EDT Tuesday for LMZ844-845.



SYNOPSIS . Ostuno DISCUSSION . Ostuno AVIATION . 04 MARINE . Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SVNM4 - South Haven, MI 16 mi49 min 11 G 15 73°F
45168 18 mi39 min E 12 G 14 73°F 71°F1 ft1016.8 hPa64°F
HLNM4 - 9087031 - Holland, MI 25 mi55 min ESE 14 G 20 74°F 69°F1016.3 hPa63°F
45029 34 mi39 min ESE 12 G 16 73°F 71°F1 ft1016.3 hPa64°F
SJOM4 - St. Joseph, MI 36 mi49 min S 1 G 4.1 74°F 1017.9 hPa (+0.3)
45026 - St. Joseph, MI 46 mi39 min N 9.7 G 14 75°F 72°F1 ft1016.7 hPa64°F
MKGM4 - Muskegon, MI 57 mi39 min SSE 11 G 18 74°F 1016 hPa64°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
South Haven, South Haven Area Regional Airport, MI15 mi54 minSE 510.00 miFair72°F64°F77%1017.6 hPa
Holland - West Michigan Regional Airport, MI21 mi56 minSSE 710.00 miFair72°F63°F73%1017.2 hPa

Link to 5 minute data for KLWA

Wind History from LWA (wind in knots)
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Last 24hrE4SE3E4E4E4E4SE4SE4SE4SE5SE3E5E3SE7SE5CalmS3E3E3------SE5SE5
1 day agoCalmN3CalmNE4NE4E4NE7E8
G14
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G14
E9E7NE4CalmNW8NW6N7N4N4CalmCalmCalmCalmE4E3
2 days agoSE4CalmS3CalmS4CalmCalmS3SW5SW6SW7W9
G14
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G14
W7W4CalmCalmCalmCalmCalmCalmCalmCalm

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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