Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
Snover, MI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:59AMSunset 8:53PM Tuesday May 21, 2019 2:27 AM EDT (06:27 UTC) Moonrise 10:52PMMoonset 7:16AM Illumination 95% 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
    EDIT      (on/off)   Help
LHZ442 Harbor Beach To Port Sanilac Mi- 1001 Pm Edt Mon May 20 2019
Rest of tonight..Northwest winds 10 to 15 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Tuesday..Northwest winds 5 to 10 knots becoming north 10 to 15 knots in the late morning and early afternoon, then diminishing to 5 to 10 knots early in the afternoon. Mostly Sunny in the morning becoming partly cloudy. Waves 1 to 3 feet.
Tuesday night..Northeast winds 5 to 10 knots becoming east 10 to 15 knots after midnight. Partly cloudy in the evening becoming mostly cloudy. Waves 2 feet or less.
Wednesday..Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and early afternoon, then diminishing to 10 to 15 knots early in the afternoon. Mostly cloudy with a chance of showers and Thunderstorms. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. A small craft advisory may be needed. SEe lake huron open lake forecast for days 3 through 5.
LHZ442 Expires:201905210930;;197384 FZUS53 KDTX 210201 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 1001 PM EDT Mon May 20 2019 For waters within five nautical miles of shore 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. LHZ442-210930-


7 Day Forecast for Marine Location Near Snover, MI
   Hourly   EDIT   Help
location: 43.42, -83     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kdtx 210401
afddtx
area forecast discussion
national weather service detroit pontiac mi
1201 am edt Tue may 21 2019

Aviation
A dry and stable environment as high pressure builds into the region
will maintain mostly clear skies across the lowest 5000 ft through
Tuesday, outside of perhaps a few diurnal cu. Prevailing northwest
winds diminishing in speed overnight, then shifting to east-
northeast on Tuesday. High clouds thickening from south to north
throughout Tuesday.

Dtw threshold probabilities
* none

Prev discussion
Issued at 325 pm edt Mon may 20 2019
discussion...

it has been a chilly late may day across SE mi as temps have largely
remained in the low-mid 50s with westerly winds gusting in the 20 to
30 mph range. Surface high pressure will expand into lower mi from
the west during the course of the night, tucked under a region of
mid level confluence. The resulting low level anticyclonic flow and
loss in diurnal mixing will support a clearing trend during the
evening, possibly into the early overnight. Veering of the low level
flow toward the northwest and the southeastward expansion of the
lake mi marine layer will cause the clearing to take hold from
northwest to southeast tonight. As the sfc high builds in overnight,
winds will become light, supporting decent radiational cooling. This
cooling will be limited to a degree by an increase in mid high level
clouds late tonight, mainly south of the i-69 corridor. The saginaw
valley and thumb region, where evening clearing will be the earliest
to occur will see the greatest degree of cooling, with mins likely
dipping down into the 30s. Lows in the 40s should suffice elsewhere.

Given that the low levels remain relatively moist (sfc dewpoints
still around 40) only patchy frost will be mentioned across the
north tonight.

Se mi will lie between a deep upper level low rotating across the
central high plains and an upper low moving into the canadian
maritimes on Tuesday. This will result in a sharpening mid level
ridge axis across the great lakes, sustaining the sfc high across
the region. There will however be a forced transport of higher mid
level moisture into SRN mi during the day Tuesday within the
entrance region of an impressive 160 upper jet MAX over ERN canada.

Model solutions suggest this moisture combined with some mid level
frontal forcing will support some showers across NRN in, possibly
far SW lower mi on Tuesday. As mid level heights build during the
day, this frontal circulation is shown to weaken. This and a fairly
substantial sub 700mb dry layer will support a dry forecast Tuesday,
although there will be ample mid and high clouds through the day.

Some moderation in the low level thermal profile will allow tues
high temps to make a run at lower 60s, with cooler readings near the
lakes under onshore flow.

With the plains upper low forecast to lift into the northern plains
on Wednesday, strong low-mid level southwest inflow across the ohio
valley will drive mid level moisture and an elevated instability
plume into SE mi. Timing looks to be late tues night into early
Wednesday. Fairly steep mid level lapse rates within this moisture
feed will be supportive of a good chance of showers and
thunderstorms. There will be a strengthening of the low level
southeast flow overnight Tuesday into the day Wednesday with the
approach of the sfc warm front. This may lead to yet another round
of water level rises and flooding concerns along the shores of lakes
st clair and erie. There is a fair amount of model agreement in
suggesting the warm front will lift into SE mi late wed. The
timing placement of this front will have substantial impact on
temperatures Wednesday as it will replace a cool marine modified
airmass with a more summer-like temperature humidity regime.

Thursday, southeastern michigan will have shower and thunderstorm
chances from a weak cold front trailing a shortwave located north of
lake superior. This is quickly followed by a small ridge of high
pressure that will be over the state on early Friday. By late Friday
evening shower and storm chances return and linger through the day
Saturday as a warm front moves across SE mi. This front is tied to a
low that will be moving northeast from the plains into minnesota. As
the low moves into ontario and quebec, the trailing cold front is
looking to stall out near or just south of the ohio border. This
becomes a stationary front that will keep rain chances for counties
along the ohio border from Saturday night through Sunday.

Marine...

west-northwest winds this afternoon gusting to around 25 knots this
afternoon will slowly decrease this evening and shift to the
northeast overnight as high pressure builds into the area through
tomorrow, providing light winds and favorable marine conditions
during the day. East to southeast flow will then increase on
Wednesday as this high shifts to the east and a warm front lifts
north towards the area. However, winds are expected to stay under 25
knots along the nearshore waters, and small craft advisories may not
be needed. Winds become southwest late Wednesday night ahead of a
cold front, which passes through on Thursday. Gusts up to 25 knots
are possible right along the shoreline areas of the nearshore
waters, with low level stability over the open waters holding gusts
generally under 20 knots.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Mr
discussion... Sc kdk
marine... ... .Sf
you can obtain your latest national weather service forecasts online
at

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PSCM4 24 mi27 min 44°F 1020.3 hPa (+0.7)
HRBM4 - 9075014 - Harbor Beach, MI 35 mi39 min WNW 7 G 9.9 49°F1019.6 hPa
FTGM4 - 9014098 - Fort Gratiot, MI 42 mi45 min W 2.9 G 4.1 1019.6 hPa
KP58 43 mi36 min WNW 7 45°F 1019.5 hPa37°F
MBRM4 - 9014090 - Mouth of the Black River, MI 44 mi45 min 1019.4 hPa
SBLM4 - Saginaw Bay Light #1, MI 47 mi27 min NNW 11 G 12 49°F 1019.6 hPa (+0.6)

Wind History for Harbor Beach, MI
(wind in knots)    EDIT      (on/off)   Help
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
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
SW11
G14
W10
G15
W6
G10
SW8
G14
W13
G23
W10
G15
W11
G18
W14
G21
W19
G24
W13
G21
W14
G17
W12
G23
W9
G18
N13
N15
NW12
G15
NW14
G20
NW8
G11
NW6
G9
NW4
N9
NW4
NW3
G6
NW7
G11
1 day
ago
E2
SE5
SE5
E3
SE4
SE7
S8
G12
SE4
SE5
E4
E3
N3
NW6
NW9
G12
W6
SW8
G11
S8
S10
G15
S12
G16
S14
S16
G21
SW11
G14
SW12
G15
SW9
G12
2 days
ago
--
--
E2
E5
E5
E5
SE6
SE6
SE8
SE7
SE7
S5
SE8
G11
E3
E3
N5
SE4
SE7
S9
S6
S10
G13

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Caro, Tuscola Area Airport, MI24 mi32 minN 07.00 miFair39°F37°F95%1020.3 hPa

Wind History from CFS (wind in knots)
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
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
Last 24hrSW9SW10
G16
W9
G14
W11
G18
W9W15
G25
W12
G16
W9
G18
SW11
G18
W16
G22
W15
G19
W12
G17
W7W10
G14
NW12
G16
NW7NW8W3CalmCalmW3N7CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmW6NW5NW5NW5CalmSW8W8S9
G15
S10
G14
S9
G16
S15
G22
S9
G14
S7S9SW7SW8W10
G19
2 days agoCalmE3E3CalmSE3SE3E4E6SE9
G15
SE12SE13
G18
SE8SE11SE8SE9SE8E6E5E4SE5SE4SE5S4Calm

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Detroit/Pontiac, MI (2,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Detroit, MI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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 numerious 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.