Monday, April19, 2021
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Marine Weather and Tides
Cross Village, 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 6:40AMSunset 8:32PM Monday April 19, 2021 5:15 PM EDT (21:15 UTC) Moonrise 10:35AMMoonset 2:04AM Illumination 54% Phase: First Quarter Moon; Moon at 8 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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LMZ342 Norwood Mi To 5nm West Of Mackinac Bridge Including Little Traverse Bay- 310 Pm Edt Mon Apr 19 2021
.gale warning in effect through late tonight...
Tonight..Northwest wind 15 to 25 knots with gusts to around 35 knots. Isolated rain and snow showers. Waves 4 to 6 feet subsiding to 3 to 5 feet after midnight.
Tuesday..Northwest wind 10 to 20 knots with gusts to around 25 knots. Partly Sunny. Waves 2 to 4 feet.
Tuesday night..North wind 10 to 15 knots with gusts to around 20 knots. Partly cloudy. Waves 2 to 3 feet.
Wednesday..Northwest wind 10 to 15 knots. Mostly Sunny. Waves 2 feet or less. SEe the open lakes forecast for days 3 through 5.
LMZ342 Expires:202104200600;;806433 FZUS53 KAPX 191910 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 310 PM EDT Mon Apr 19 2021 For waters within five nautical miles of shore on Lakes Huron... Michigan and Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LMZ342-200600-


7 Day Forecast for Marine Location Near Cross Village, MI
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location: 45.58, -85     debug


Area Discussion for - Gaylord, MI
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FXUS63 KAPX 191856 AFDAPX

Area Forecast Discussion National Weather Service Gaylord MI 256 PM EDT Mon Apr 19 2021

NEAR TERM. (Through Tonight) Issued at 252 PM EDT Mon Apr 19 2021

. Much colder air arrives .

High impact weather potential: Another freeze expected across our vulnerable fruit growing areas of northwest lower Michigan tonight. Lingering gales.

Pattern synopsis and forecast:

Sharp shortwave trough rotating across the northern Great Lakes early this afternoon, with its attendant surface low pressure pivoting east across northern Ontario. Cold front extends south from this low, making steady east progress across Lake Huron. Gusty west winds ushering in a shot of much colder air behind this front, with falling temperature into the 30s across the western Great Lakes (with wind chill values several degrees colder yet). While most widespread and organized showers have now exited off to our east, burgeoning lake processes and "wrap around" moisture are resulting in increasing snow shower activity across the snow belts of central and western upper Michigan.

Winter-like airmass will continue to spill into the area tonight . bringing more hard freeze concerns and light lake effect snow showers as it does so.

Primary forecast concerns/challenges:

Main emphasis is on temperature trends, attendant freeze concerns, and light lake effect snow potential tonight. Details:

Expect lake effect snow showers to increase in coverage and intensity into the snow belts of eastern upper Michigan later this afternoon and evening as H8 temperatures fall into the negative teens across Lake Superior and synoptic moisture contribution increases. Limited inversion heights (just a bit over 5kft) and a relatively short window for most organized snow showers (best parameters exit east quickly later this evening) should keep snow amounts light, on the order of an inch or two. Much less favorable conditions across Lake Michigan, with more limited synoptic contribution, even lower inversion heights, and a noted inverted-v signature on guidance derived soundings. Can't rule out a few lake effect snow showers into northwest lower Michigan, but both coverage and intensity will be minimal.

Much more impactful concern tonight will be temperatures. Despite completely unfavorable radiational cooling conditions with gusty winds and lake clouds, simple magnitude of cold air advection will result in temperatures falling below freezing across the area (wind chill readings in the teens and 20s!). Freeze warning already issued for our vulnerable fruit growing areas along the northwest lower coastline. Unfortunately, next couple night look as cold, if not even a few degrees colder.

SHORT TERM. (Tuesday through Thursday) Issued at 252 PM EDT Mon Apr 19 2021

High impact weather potential: Freeze conditions possible.

Broad upper-level troughing will continue over the Great Lakes region although surface high pressure will build into the forecast area along with drier air. This will produce mostly quiet weather throughout this forecast period . with partly to mostly cloudy skies and cool weather as a generally north to northwesterly wind continues to usher in cooler air from Canada. With -10 to -12C still at 850mb, lingering moisture, and lake temperatures around 3C, we can expect lake clouds to be a nuisance through at least late Wednesday. Thursday will get a bit warmer as warmer air begins to wrap around the top of the ridge and spill into northern Michigan. As mentioned above, mostly north to northwesterly flow will continue to usher in cold temperatures through Wednesday, producing daytime temperatures well below normal for this time of the year . some locations will continue to run about 10-15 degrees below normal, only reaching into the mid 30s to low 40s. Temperatures will continue to only reach into the low 20s to low 30s at night . with the possibility of getting colder if clouds diminish and winds stay down in intensity. Will have to protect sensitive vegetation since a lot has blossomed and/or bloomed already . which is way too early, we still have a lot of cold nights in store for the next several weeks.

LONG TERM. (Thursday night through Monday) Issued at 252 PM EDT Mon Apr 19 2021

A rather progressive weather pattern will continue, but no "big storms" at the moment. Forecast models are in fairly good consensus of northern Michigan seeing more dry weather with mostly high pressure overhead and only a couple of periods with a weak disturbance moving through, producing some chances of precipitation. More seasonable temperatures should return for the long term forecast period as a more southerly flow develops. Overnight temperatures will drop into the 30s.

AVIATION. (For the 18Z TAFS through 18Z Tuesday afternoon) Issued at 128 PM EDT Mon Apr 19 2021

MVFR to low end VFR CIGS will be common through tonight, with much colder air and growing overlake instability, possibly leading to scattered lake effect rain and snow showers that would primarily impact TVC/PLN. No serious VSBY impacts expected from the showers. Some improvement in cigs is expected heading through Tuesday morning.

Gusty west to northwest winds expected to continue through the period.

MARINE. Issued at 252 PM EDT Mon Apr 19 2021

A tight pressure gradient and unstable over-water thermal regime will continue to bring advisory and low end gale force winds to the nearshore waters tonight . with some advisory winds lingering right through Tuesday. Expect wind speeds to decrease below advisory levels Tuesday night as the pressure gradient slackens.

APX WATCHES/WARNINGS/ADVISORIES. MI . FREEZE WARNING from 10 PM this evening to noon EDT Tuesday for MIZ020-021-025-026-031-099. LH . SMALL CRAFT ADVISORY until 6 AM EDT Tuesday for LHZ348-349. GALE WARNING until 6 AM EDT Tuesday for LHZ345>347. LM . SMALL CRAFT ADVISORY until 6 AM EDT Tuesday for LMZ323-344>346. GALE WARNING until 6 AM EDT Tuesday for LMZ341-342. LS . SMALL CRAFT ADVISORY until 5 PM EDT Tuesday for LSZ322. GALE WARNING from 8 PM this evening to 6 AM EDT Tuesday for LSZ321.

NEAR TERM . mb SHORT TERM . TL LONG TERM . TL AVIATION . mb MARINE . mb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WSLM4 19 mi45 min WNW 22 35°F 37°F1006.3 hPa23°F
MACM4 - 9075080 - Mackinaw City, MI 20 mi45 min WNW 18 G 26 37°F 43°F1004.8 hPa26°F
GTLM4 - Grand Traverse Light, MI 39 mi35 min WNW 20 G 23 44°F 1008.5 hPa
NABM4 - Naubinway, MI 42 mi35 min WNW 15 G 26 34°F 1006.8 hPa

Wind History for Mackinaw City, MI
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NW3
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pellston Regional Airport of Emmet County, MI11 mi21 minWNW 14 G 2810.00 miOvercast37°F28°F70%1007.8 hPa
Harbor Springs, Harbor Springs Airport, MI12 mi20 minW 12 G 2410.00 miOvercast37°F27°F67%1007.1 hPa
Charlevoix, Charlevoix Municipal Airport, MI24 mi20 minWNW 15 G 2010.00 miOvercast39°F27°F63%1007.8 hPa

Link to 5 minute data for KPLN

Wind History from PLN (wind in knots)
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Last 24hrNW8W7W4CalmCalmCalmCalmCalmCalmCalmCalmS4S3CalmCalmSE3W10W8W9W10
G22
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1 day agoNW15NW10NW11NW7NW6W5W5N4W3W3W4NW3NW3CalmNW7W6NW8NW10NW6NW7
G18
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NW9NW12
G17
2 days agoNW11NW11NW9NW3N3NW5NW7NW6NW4W4CalmCalmCalmCalmCalmCalmCalmE3W6W8NW10NW9NW10NW11

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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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