Monday, April23, 2018 L-36.com


Marine Weather and Tides
Mount Clemens, MI

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:34AMSunset 8:24PM Monday April 23, 2018 5:34 AM EDT (09:34 UTC) Moonrise 12:27PMMoonset 2:17AM Illumination 56% 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
    EDIT      (on/off)   Help
LCZ460 Lake St Clair- 951 Pm Edt Sun Apr 22 2018
Rest of tonight..East winds 5 to 10 knots. Clear. Waves 2 feet or less.
Monday..Southeast winds 5 to 10 knots. Mostly Sunny. Waves 2 feet or less.
Monday night..Southeast winds 5 to 10 knots. Partly cloudy until early morning...then cloudy with a chance of light showers early in the morning. Waves 2 feet or less.
Tuesday..East winds 5 to 10 knots. Cloudy with a chance of light showers. Waves 2 feet or less.
Tuesday night..East winds 5 to 10 knots early in the evening becoming light and variable...then becoming north 5 to 10 knots early in the morning. Cloudy with a chance of light showers. Waves 2 feet or less.
Wednesday..North winds 10 to 15 knots. Mostly cloudy with a chance of light showers early in the morning...then partly cloudy. Waves 2 feet or less.
Thursday..South winds 5 to 10 knots. Mostly clear. Waves 2 feet or less.
Friday..North winds 5 to 10 knots. Partly cloudy. A chance of light showers. Waves 2 feet or less.
LCZ460 Expires:201804230800;;356354 FZUS63 KDTX 230152 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 951 PM EDT SUN APR 22 2018 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, 30.50 inches, will start to slowly drift eastward through early next week with dry conditions continuing during this time. Unsettled weather returns mid-week when a weak low pressure system, 29.90 inches, lifts out of the southern US and towards the region. LCZ460-230800-

7 Day Forecast for Marine Location Near Mount Clemens, MI
   Hourly   EDIT   Help
location: 42.58, -82.83     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kdtx 230739
afddtx
area forecast discussion
national weather service detroit pontiac mi
339 am edt Mon apr 23 2018

Discussion
Today will be the last of a nice stretch of dry days going back into
late last week. The 00z dtx sounding last night came in with a pwat
of 0.18 inches and shows a good amount of depth to the dry air that
has settled over southeast michigan. Low level thermal ridge will
allow temperatures to climb even higher this afternoon with much of
the inland areas solidly in the upper 60s and lower 70s. However,
temperatures across the lakeshores of lake huron look to remain in
the 50s and maybe low 60s as east northeasterly onshore flow from
the relatively cooler waters will hamper greater warming. Cloud
cover will begin to increase today from south to north emanating
from a closed low moving across the tn valley. The increase in
clouds will arrive late enough in the day to not affect the warm up,
but it will signal the beginning of the moisture moving into the
region. Winds will veer to the south southeast and surface dew
points into the 40s will be pulled into southeast michigan this
afternoon. The resident dry airmass will likely hold off any light
precipitation that may try to lift into michigan from south of the
state line during the day.

The closed low will meander across the tn valley through tonight
while a shortwave begins to swing across south central canada.

Theta-e advection and weak mid level isentropic lift on the north
side of the low will support low chances for rain across the far
south as soundings begin showing low to mid levels becoming
saturated. The saturation process will work north into flint and
eventually the tri-cities. This will bring a slight increase in rain
chances for these areas into Tuesday morning.

By Tuesday afternoon, the northern stream shortwave will begin
digging through the upper great lakes and interact with the closed
low as it moves into the ohio valley and gets absorbed within the
northern stream westerlies. This interaction will increase rain
chances across all of southeast michigan Tuesday afternoon and then
into Tuesday night as a surface cold front associated with the
shortwave moves through michigan. These scattered rain showers from
Tuesday into Wednesday morning look to produce around a quarter of
an inch or less of qpf. Potential exists for lingering precipitation
chances through Wednesday as the euro has this shortwave deepening
and becoming a closed low as it moves through lower michigan and
northern in oh. Models still differ with how this evolution. If it
does pan out, expect an additional tenth of an inch of rainfall
mainly across the thumb and eastern portions of the cwa.

Temperatures will drop behind the aforementioned cold front, but
remaining in the 50s and upper 40s for most locations.

Precipitation may still be lingering into early Thursday morning
across the eastern portions of the area if that closed low develops
and pivots northeast. A shortwave ridge looks to eventually move
over the area on Thursday bringing a brief break in precipitation
before the next wave diving out of canada brings another round of
precipitation to close out the work week. The good news is high
temperatures look to at least hold in the 50s on Friday and into the
weekend.

Marine
High pressure will be in firm control of marine conditions for one
more day and provide a general light east wind and nearly calm waves
through tonight. Moisture from low pressure over the tennessee
valley will then spread northward over the central great lakes later
tonight and merge with that from a weak cold front during Tuesday
producing rain showers across the area into Wednesday. A light and
variable wind pattern will become moderate from the north Tuesday
night and Wednesday after the front moves through lake huron and
lower michigan and likely produce wave growth exceeding the 4 ft
threshold for small craft advisories. High pressure moves in
Wednesday night and Thursday but not for long as the next front is
projected to move in from the west Thursday night into Friday.

Prev discussion
Issued at 1153 pm edt Sun apr 22 2018
aviation...

while mid upper level clouds will begin to increase from the south
late in the forecast period, expectVFR conditions to prevail once
again. Winds will remain light, under 10 knots, with a predominant
easterly direction.

Dtw threshold probabilities...

* none.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Discussion... Aa
marine... ... .Bt
aviation... ..Dg
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
CLSM4 - St. Clair Shores, MI 8 mi34 min NNE 7 G 8 44°F 1025.4 hPa (-1.0)
AGCM4 16 mi46 min 40°F 1024.8 hPa
MBRM4 - 9014090 - Mouth of the Black River, MI 35 mi52 min 38°F 1025.2 hPa
FTGM4 - 9014098 - Fort Gratiot, MI 37 mi46 min NE 6 G 7

Wind History for Fort Gratiot, MI
(wind in knots)    EDIT      (on/off)   Help
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
2
AM
3
AM
4
AM
Last
24hr
E1
NE2
E1
S3
SE1
NE5
E7
NE12
NE13
NE14
NE13
NE9
NE13
NE10
NE6
NE6
NE8
G11
NE9
N8
G12
N6
N6
NE7
G10
NE9
NE7
1 day
ago
E2
SW1
S3
S4
SW1
SW2
S4
E6
E8
E10
E12
E11
E6
E10
E5
G11
SE2
G5
SW6
SW6
E4
SW4
SW6
S3
S2
S2
2 days
ago
NW7
G10
NW7
NW7
G10
NW8
N10
G15
NE12
NE11
NE11
E12
NE11
NE11
NE10
NE7
G10
NE6
NE5
NE4
E3
NE2
W3
E1
--
W5
NW1
NE2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Selfridge Air National Guard Base, MI3 mi38 minNE 510.00 miFair40°F28°F64%0 hPa
Coleman A Young Municipal Airport, MI14 mi41 minENE 710.00 miFair43°F26°F51%1025.3 hPa
Troy, Oakland/Troy Airport, MI19 mi39 minNE 710.00 miFair45°F21°F40%1025.7 hPa

Wind History from MTC (wind in knots)
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
2
AM
3
AM
4
AM
5
AM
Last 24hrCalmCalmCalmNE3E5E7NE5N5E53SE64SE4SE6E3NE9NE6NE5N5N3N5N3NE4NE5
1 day agoCalmCalmCalmCalm45SE6S5S4S4SE4S6S6S5S3S3S6SW3CalmCalmCalmCalmCalmCalm
2 days agoNW5NW5NW6NW5366N10N7N8NW8
G15
N9NE8NE11E9E7E4CalmCalmCalmN3CalmCalmW3

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)   HelpWeather Map
wmap_A
GOES Local Image of GreatLakes    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Detroit/Pontiac, MI (5,6,7,8)
      (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.