Thursday, May13, 2021
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Marine Weather and Tides
Lansing, MI

Version 3.4
NOTICE
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 6:15AMSunset 8:53PM Thursday May 13, 2021 7:18 AM EDT (11:18 UTC) Moonrise 6:23AMMoonset 9:56PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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LCZ423 231 Pm Edt Fri May 7 2021
.line of Thunderstorms approaching the waters... The areas affected include... Lake st. Clair... Detroit river... Michigan waters of lake erie... At 229 pm edt, doppler radar indicated Thunderstorms, capable of producing winds to up 30 knots and small hail. These Thunderstorms were located along a line extending from 25 nm west of st. Clair shores to near bolles harbor of refuge, moving east at 25 knots. Strong Thunderstorms will be near, Monroe harbor, detroit beach and woodland beach around 245 pm edt. Stony point and estral beach around 255 pm edt. Lake erie metropark harbor around 300 pm edt. Detroit river light around 305 pm edt. NEw baltimore, mt clemens harbor of refuge and st. Clair shores around 330 pm edt. Other locations impacted by strong Thunderstorms include woodland beach, stony point, gibraltar, estral beach and detroit beach. Precautionary/preparedness actions... Mariners can expect gusty winds up to 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4173 8350 4180 8350 4195 8337 4197 8328 4226 8317 4233 8311 4239 8295 4254 8291 4259 8285 4266 8285 4271 8271 4270 8261 4255 8264 4238 8282 4229 8310 4224 8313 4205 8315 4196 8311 4172 8340
LCZ423 Expires:202105071930;;746307 FZUS73 KDTX 071831 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 231 PM EDT Fri May 7 2021 LCZ423-460-LEZ444-071930-


7 Day Forecast for Marine Location Near Lansing, MI
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location: 42.71, -84.56     debug


Area Discussion for - Grand Rapids, MI
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FXUS63 KGRR 130732 AFDGRR

Area Forecast Discussion National Weather Service Grand Rapids MI 332 AM EDT Thu May 13 2021

LATEST UPDATE . Synopsis/Discussion/Marine

SYNOPSIS. Issued at 330 AM EDT Thu May 13 2021

-High Pressure Building with Warming Temperatures -Short wave with weak precipitation chances Saturday

-Precipitation chances continues to trend southward late weekend

DISCUSSION. (Today through next Wednesday) Issued at 33o AM EDT Thu May 13 2021

--High Pressure Building with Warming Temperatures--

Dry air with building high pressure will dominate the weather pattern today and into the weekend. The inversion at the surface will allow for another cold morning with frost/freeze headlines across Southwest Michigan. As the inversion breaks down this morning, westerly winds will pick up, though the winds will be fairly light around 5 to 10 mph. Temperatures will increase and given the high pressure, along with the dry air, it will be a fairly warm day. Highs are expected to be in the upper 60s through most of the region potentially hitting the low 70s along the US-10 corridor. Fair weather and warming temperatures will continue through the end of the work week.

--Short wave with weak precipitation chances Saturday--

A short wave trough will filter its way into the region Saturday. this will bring some increased cloudiness. However given the dry pattern it will be difficult to form precipitation. There is a slight chance Saturday afternoon. The best chance will be Saturday night into Sunday with better mid to upper level instability.

--Precipitation chances continues to trend southward--

The warm and dry conditions will continue through most of the weekend. The model trends continue to keep the surface system, and its warm front, mainly through the southern tier of Michigan. So there is a decent chance of rain along the I-94 corridor late Sunday into Monday. Precip amounts will be fairly low. The strong jet aloft continues to trend southward, which will keep the system and its corresponding warm front south of Michigan.

Early next week a negatively tilted ridge will building over the upper midwest and into central Canada. This ridge will stifle convection and continue the warming temperatures. There is an opportunity to relieve the dry conditions mid to late next week with a northward propagating shortwave, however there is some disparity in the models so confidence in position and timing remains low.

AVIATION. (For the 06Z TAFS through 06Z Thursday night) Issued at 130 AM EDT Thu May 13 2021

VFR conditions will continue overnight and through Thursday with a strong inversion in place. Expect winds from the west around 5 to 10 knots.

MARINE. Issued at 330 AM EDT Thu May 13 2021

High pressure centered over the Great Lakes Region will keep winds and waves below Small Craft Advisory criteria the next several days. However expect stronger onshore flow of 10-15 kts during the afternoon and early evening hours due to lake breeze circulations (differential heating of land vs lake).

GRR WATCHES/WARNINGS/ADVISORIES. MI . Frost Advisory until 8 AM EDT this morning for MIZ050>052- 056>059-064>067-071>074.

Freeze Warning until 8 AM EDT this morning for MIZ037>040- 043>046.

LM . None.

SYNOPSIS . Ceru DISCUSSION . Ceru AVIATION . Ceru MARINE . Ceru


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 88 mi78 min NNW 2.9 G 2.9 49°F 1028.1 hPa (+0.3)
HLNM4 - 9087031 - Holland, MI 88 mi48 min E 1 G 1 39°F 48°F1029.2 hPa38°F
CLSM4 - St. Clair Shores, MI 91 mi78 min Calm G 1.9 45°F 1028.8 hPa (+0.4)

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI5 mi25 minWSW 310.00 miFair36°F32°F86%1029.8 hPa
Mason, Mason Jewett Field Airport, MI12 mi23 minN 010.00 miFair34°F31°F87%1029.5 hPa
Charlotte, Fitch H Beach Airport, MI16 mi23 minN 010.00 miFair33°F29°F84%1029.1 hPa

Link to 5 minute data for KLAN

Wind History from LAN (wind in knots)
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Last 24hrNW4N5N6N8NE9
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NW66W7N6NW5NW3CalmW6W7NW5W3W3--CalmCalmW3
1 day agoNW7NW12
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N11N7NW7NW5NW5NW3NW4NW3CalmCalmCalmCalmW4
2 days agoNW5NW7N6NW8NW7
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W8NW8NW4NW5W6NW5NW3W4NW7NW5W5NW5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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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