Friday, April20, 2018 L-36.com


Marine Weather and Tides
Sebewaing, 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 6:41AMSunset 8:26PM Friday April 20, 2018 2:35 PM EDT (18:35 UTC) Moonrise 9:19AMMoonset 12:00AM Illumination 29% Phase: Waxing Crescent; Moon at 5 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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LHZ422 Inner Saginaw Bay Sw Of Point Au Gres To Bay Port Mi- 931 Am Edt Fri Apr 20 2018
Rest of today..Northwest winds 5 to 10 knots late in the morning becoming light and variable. Sunny. Waves around 2 feet or less.
Tonight..East winds 5 to 10 knots in the evening becoming light and variable. Mostly clear. Waves around 2 feet or less.
Saturday..Light and variable winds. Partly cloudy early in the morning becoming mostly Sunny. Waves around 2 feet or less.
Saturday night..Light and variable winds becoming southeast 5 to 10 knots in the late evening and early morning...then becoming light and variable early in the morning. Mostly clear. Waves around 2 feet or less. SEe lake huron open lake forecast for days 3 through 5.
LHZ422 Expires:201804202115;;234430 FZUS53 KDTX 201331 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 931 AM EDT Fri Apr 20 2018 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. LHZ422-202115-

7 Day Forecast for Marine Location Near Sebewaing, MI
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location: 43.76, -83.68     debug


Area Discussion for - Gaylord, MI
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Fxus63 kapx 201727
afdapx
area forecast discussion
national weather service gaylord mi
127 pm edt Fri apr 20 2018

Update
Issued at 1040 am edt Fri apr 20 2018
not much to talk about as strong high pressure centers itself
directly overhead. Mostly sunny skies and light winds will be the
result. Strong diurnal temperature response well underway, with
many areas already punching into the lower 40s. Several more hours
of warming yet to go, and expect plenty of places across interior
northern lower michigan to make a run into the lower 50s by the
middle of this afternoon.

Near term (today through tonight)
issued at 221 am edt Fri apr 20 2018

Dry wx with a gradual warning trend.

High impact weather potential... None.

Pattern synopsis forecast... Large area of strong high pressure and
dry air remains centered over the heart of the us early this
morning... Resulting in clear skies and dry wx thru the entire
mississippi valley... Most of the great lakes and the ohio valley.

Temps are slowly dropping out of the 30s and into the 20s at this
hour... On their way down to overnight lows in the upper teens and
lower 20s. Skies remain clear and winds are calm... In stark contrast
to this time last week.

As we head into today and tonight... Little will change as the strong
surface high center slides overhead. Skies will remain clear over
the next 24 hours at least... With only some thin cirrus drifting
overhead. Our gradual warming trend will continue today with
afternoon highs ranging from the mid to upper 40s in the NW half of
our CWA to the low to mid 50s in the SE half. Temps will drop back
into the 20s tonight thanks to clear skies and calm winds.

Short term (Saturday through Sunday)
issued at 221 am edt Fri apr 20 2018

True spring-like weather this weekend...

high impact weather potential: minimal, although will be monitoring
rising river levels through the weekend due to snow melt runoff.

Pattern forecast: split flow aloft across the western tier of the
conus is expected to be evident at the start of the forecast period
Saturday with one area of low pressure meandering across the
central southern plains and another across alberta saskatchewan.

Both systems are expected to remain well south north, respectively,
of northern michigan as surface high pressure dominates our weather
locally through the weekend.

Primary forecast concerns challenges: minimal aside from potential
fog issues and rising rivers due to melting snow runoff.

Little in the way of sensible weather is anticipated across northern
michigan through the upcoming weekend as aforementioned surface high
pressure sits atop the region. A return to near-normal high
temperatures is expected both Saturday and Sunday with highs topping
out in the upper 40s nearest the lakeshores to the low-upper 50s
inland (normals for the third week of april range from 51 at anj to
56 at tvc htl).

A good radiational cooling setup Saturday night into Sunday morning
with light winds clear skies, combined with snow-covered ground, may
lend itself to fog potential across a bulk of the area. However, the
biggest concern through the weekend continued to be snow melt runoff
and resultant rises in area rivers. As was previously mentioned, the
rifle river near sterling is forecast to continue a slow rise above
flood stage during the day Sunday while the manistee river near
sherman is forecast to fall half a foot or so short of minor flood
stage. Either way, the potential will need to be monitored
through the weekend into next week.

Long term (Sunday night through Thursday)
issued at 221 am edt Fri apr 20 2018
high impact weather potential: minimal outside of rising river
levels.

Generally quiet weather is expected to prevail throughout much of
the extended forecast period with the exception lying around the
Tuesday Wednesday time frame as a quick moving wave slides across
the central plains, perhaps interacting with the aforementioned
southern wave slowly moving across the southern tier of the conus
this weekend. As a result, mainly low precip (rain) chances return
to the forecast later Tuesday into Wednesday.

Otherwise, the primary concern continues to revolve around rising
river levels into next week, which would be exacerbated by any
liquid precipitation mentioned above.

Aviation (for the 18z tafs through 18z Saturday afternoon)
issued at 126 pm edt Fri apr 20 2018
vfr conditions to continue under a few passing high clouds. Light
wind through the period.

Marine
Issued at 221 am edt Fri apr 20 2018
winds and waves will remain below SCA criteria today thru the
weekend as high pressure remains in charge of the wx across the
great lakes region. Dry wx and mainly clear skies are expected...

with our gradual warming trend continuing thru the weekend and into
next week.

Apx watches warnings advisories
Mi... None.

Lh... None.

Lm... None.

Ls... None.

Update... mb
near term... Mr
short term... Mg
long term... Mg
aviation... mb
marine... Mr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 4 mi36 min SSE 6 G 6 41°F 1031.8 hPa (+0.0)
GSLM4 - Gravelly Shoals Light MI 19 mi56 min ESE 6 G 6 35°F 1033.2 hPa
TAWM4 - Tawas City, MI 36 mi56 min E 6 G 8.9 40°F 1032.5 hPa

Wind History for Harbor Beach, MI
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G29
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W13
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G12
N10
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Caro, Tuscola Area Airport, MI24 mi41 minN 910.00 miFair49°F18°F29%1032.2 hPa

Wind History from CFS (wind in knots)
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Last 24hrNW12
G17
N11
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N5N5NE3CalmCalmNW6NW8NW6NW5NW7NW5NW5CalmCalmCalmCalmN4N5NW6NW5N6NW8
1 day agoNW5N7NE5NE9
G16
NE7CalmN6N5N5N9N9N6N4N4N10
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2 days agoW15
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W12W5W12W8W6W8W7W8W9W8W6W7W4W3W4W5W4W5W5CalmN4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gaylord, MI (14,3,4,5)
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Ground Weather Radar Station Detroit, MI
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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.