Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Forestville, MI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:12AMSunset 7:19PM Saturday September 23, 2017 8:34 AM EDT (12:34 UTC) Moonrise 9:38AMMoonset 8:30PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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
LHZ463 Lake Huron From Port Austin To Harbor Beach Beyond 5nm Off Shore- Lake Huron From Harbor Beach To Port Sanilac Beyond 5nm Off Shore- Lake Huron From Port Sanilac To Port Huron Beyond 5nm Off Shore- 407 Am Edt Sat Sep 23 2017
Today..South winds 5 to 10 knots in the morning becoming light and variable. Waves 2 feet or less.
Tonight..South winds 5 to 10 knots. Waves 2 feet or less.
Sunday..Light and variable winds. Waves 2 feet or less.
Sunday night..Light and variable winds. Waves 2 feet or less.
Monday..Light and variable winds becoming southeast 5 to 10 knots late in the evening. Waves 2 feet or less.
Tuesday..South winds 5 to 10 knots early in the morning becoming light and variable...then becoming east 5 to 10 knots in the late evening and early morning. A chance of showers and Thunderstorms after midnight. Waves 2 feet or less.
Wednesday..East winds 5 to 10 knots backing to the northwest until early evening...then becoming north 10 to 15 knots in the late evening and early morning. A chance of showers and Thunderstorms early in the morning. Waves 1 to 3 feet.
LHZ463 Expires:201709232015;;800432 FZUS63 KDTX 230807 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 407 AM EDT Sat Sep 23 2017 For waters beyond five nautical miles off shore on Lake Huron 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. .SYNOPSIS...High pressure, 30.10 inches, will continue to hold nearly stationary across the eastern Great Lakes through the weekend and into early next week. LHZ462>464-232015-

7 Day Forecast for Marine Location Near Forestville, MI
   Hourly   EDIT   Help
location: 43.74, -81.75     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kdtx 231108
afddtx
area forecast discussion
national weather service detroit pontiac mi
708 am edt Sat sep 23 2017

Aviation
Early morning light fog will burn off 13-14z, with mainly clear
skies and very light winds through the TAF period as the upper level
ridge remains in place. Like yesterday, there remains a very low
chance of a pop up thunderstorm in late afternoon. Patchy fog likely
developing once again overnight, with yip dtw looking to be the most
susceptible.

Dtw threshold probabilities...

* none.

Prev discussion
Issued at 405 am edt Sat sep 23 2017
discussion...

high temperature records will be in jeopardy once again today,
especially in the flint to tri cities region as interior sections of
lower michigan remain capable of highs in the lower to mid 90s.

These readings, along with surface dewpoint in the mid to upper 60s
will produce another round of heat index in the mid to upper 90s for
a few hours during mid to late afternoon. These readings are again
short of the 100 degree threshold for heat advisory headlines but
remain notable for the time of year and for occurring during the
weekend with so much outdoor activity. The slightly cooler locations
near the shorelines will also make another run at 90, especially
metro detroit with a little less influence from lake erie. Surface
high pressure that has been oriented southwest to northeast and
centered over lake erie will shift a little more over lower michigan
during the day. This will provide more of a light and variable wind
or a later developing southeast component to allow a longer period
of surface heating before weak lake influence can occur.

Mesoscale cam solutions, mainly just the hrrr, have a few specks of
convective activity again this afternoon. The same was true in last
night's runs for yesterday but with considerable uncertainty on
location. Prefer to monitor satellite trends again through the day to
pinpoint favorable locations for a possible late day shower or
thunderstorm, assuming similarly capped low levels can be overcome by
daytime heating alone.

The mid summer heat wave will continue Sunday through early next
week with a degree or two of cooling expected to occur each day.

This will be due to the core of the upper level ridge sliding
eastward along the atlantic coast as the long wave pattern begins
some adjustment from strong amplification over the last few days.

Still, we are looking at record or near record highs again in the
lower to mid 90s Sunday, lower 90s Monday, and upper 80s Tuesday.

The Tuesday numbers could also be revised upward in later forecasts
depending on cloud cover prior to the arrival of the next cold front
due Tuesday night into Wednesday. This frontal passage will bring
the next organized chance of showers and thunderstorms along with
sharply cooler temperatures. Readings are projected to be limited to
highs in the lower half of the 60s by Friday into next weekend.

Marine...

extended stretch of very warm and humid conditions will exist
through the weekend as the region remains under the influence of
strong upper ridging. This pattern will support light winds - under
15 knots - and low waves during this time. These conditions will
persist into early next week. A cold front crossing the central great
lakes Tuesday night will bring a low chance of shower and
thunderstorm activity, along with winds shifting to the west and
increasing to around 15 knots.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Sf
discussion... Bt
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
45149 - Southern Lake Huron 22 mi95 min S 7.8 G 9.7 70°F 68°F1019.3 hPa (+1.5)
PSCM4 47 mi35 min SW 2.9 G 4.1 70°F 1020.3 hPa (+1.3)
HRBM4 - 9075014 - Harbor Beach, MI 48 mi47 min WSW 7 G 8.9 70°F 1018.8 hPa64°F
FTGM4 - 9014098 - Fort Gratiot, MI 62 mi47 min SSW 2.9 G 4.1 69°F 1019.7 hPa65°F
MBRM4 - 9014090 - Mouth of the Black River, MI 64 mi47 min 69°F 1019.7 hPa

Wind History for Harbor Beach, MI
(wind in knots)    EDIT      (on/off)   Help
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
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
S3
SE7
SE11
SE11
SE11
SE11
SE11
S12
SE11
S12
G15
S10
S6
S8
SW4
N10
G16
E8
G11
SE10
S12
G16
SW7
SW6
SW7
SW7
G10
S5
SW6
1 day
ago
S12
G15
S6
G9
S15
SE13
SE15
SE12
S14
G17
S14
S11
S12
G15
S12
S11
S12
S6
S7
S7
G10
S6
S7
S7
S5
G8
S8
S6
S7
S5
2 days
ago
SE4
SE4
S8
S8
SE7
S9
SE9
S9
SE8
S5
SE8
S6
S6
S8
S9
S7
S5
SW5
S6
S7
G10
S9
S7
S10
G13
S11
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Hope, MI59 mi44 minN 0 mi72°F64°F76%1018.2 hPa

Wind History from P58 (wind in knots)
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
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
Last 24hrCalmS4SE5SE5E5E8SE7SE10SE6SE5CalmS4CalmN10SE6S6S5S435SW4SW6SW5Calm
1 day ago----------SE10SE7SE7SE8SE10
G16
S8SE4S6S444S44CalmS5S53S4S4
2 days agoSE4SE8SE8E13SE11E11--SE13SE9SE10SE5CalmS3S6--------------------

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Detroit/Pontiac, MI (8,2,3,4)
      (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.