Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Haslett, 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 8:02AMSunset 5:32PM Tuesday January 16, 2018 4:07 AM EST (09:07 UTC) Moonrise 7:38AMMoonset 5:22PM Illumination 0% Phase: New Moon; Moon at 29 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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This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 /o.can.kdtx.ma.w.0053.000000t0000z-171008t0415z/ 1125 Pm Edt Sat Oct 7 2017
.the special marine warning is cancelled... The affected areas were... Detroit river... Michigan waters of lake erie from detroit river to north cape mi... The Thunderstorms have moved out and no longer pose a significant threat to boaters. Lat...lon 4185 8345 4235 8304 4237 8299 4236 8293 4231 8307 4224 8313 4216 8313 4203 8315 4196 8311 4177 8336 time...mot...loc 0324z 222deg 57kt 4256 8295 4227 8289 4208 8292
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201710080334;;532427 FZUS73 KDTX 080325 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1125 PM EDT SAT OCT 7 2017 LCZ423-LEZ444-080334-

7 Day Forecast for Marine Location Near Haslett, MI
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location: 42.74, -84.4     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 160830
afdgrr
area forecast discussion
national weather service grand rapids mi
330 am est Tue jan 16 2018
latest update...

synopsis short term long term

Synopsis
Issued at 330 am est Tue jan 16 2018
occasional light snow will persist today but will be followed by
dry weather and gradually moderating temperatures the rest of the
week. Highs over the coming weekend should be in the 40s, with
increasing chances for rain by next Monday.

Short term (today through Thursday)
issued at 330 am est Tue jan 16 2018
for now will keep the advisory going for allegan and van buren
counties. The heavier snow showers temporarily lifted north into
ottawa and kent counties overnight, but latest radar trends
suggest they will be shifting back toward these counties early
this morning. Also a meso low looks to be present just offshore
of south haven. If heavier snow showers do not redevelop in the
advisory area over the next couple hours, will cancel expire.

Otherwise, ocnl light snow flurries will continue to fall over
much of the area this morning with mid level cyclonic shear zone
overhead. Also an area of enhanced low level convergence related
to a sfc trough extends along near the i-96 corridor. Both of
these features are progged to move slowly southeast with time, so
will have a decreasing pop trend later today.

Impressive temperature contrast exists on either side of the i-96
sfc trough feature, with single digit readings to the north and
south but teens along near it. The low level fgen related to the
temperature contrast and the convergence should continue to
promote the development of snow showers from grr to the south and
east through mid morning. Another sfc trough dropping south through
eastern lwr mi today should aid in snow shower development for
place like clare, mt pleasant and alma.

While the synoptic system finally departs tonight, backing low
level flow should send lake effect snow showers back into areas
west of highway 131. The lake snows will end early Wednesday
however due to the incoming warm advection. Wednesday and Thursday
look like dry but breezy days with slightly milder temps.

Long term (Thursday night through Monday)
issued at 330 am est Tue jan 16 2018
warmer weather and the potential for a late weekend storm is the
focus of the long term.

Zonal flow aloft Thursday night through Saturday will increase
temperatures across the great lakes. High temperatures will be in
the 40s Saturday through Monday. Models show a cold front trying to
move south across lower michigan Saturday, but it looks like it will
stall out over northern lower due to strengthening south flow over
the midwest ahead of the next storm.

Precipitation chances will increase from Saturday night through
Sunday night as a developing storm moves from the southern plains
northeast to the great lakes. Both the ECMWF and GFS show sfc
cyclogenesis over the texas panhandle in response to a strong short
wave moving across the southern rockies. This low is progd to move
northeast along the aforementioned cold front and draw up abundant
moisture from the gulf. Present storm tracks show the CWA being on
the southern side of the system, which means rain beginning Saturday
night and continuing through Sunday. It's possible that we could see
a mix of some freezing rain and or snow over the the northern cwa
Sunday night as the low moves through. Elevated lifted indices over
illinois are in the -1 to -2c range Sunday evening so some thunder
might not be too far away.

Heavy rain is a possibility with this system and could lead to
localized flooding. Colder air will flow back into the CWA late
Monday as the low moves east and northwest winds develop. This would
lead to the rain mixing with and changing to light snow.

Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 701 pm est Mon jan 15 2018
variable conditions are expected the next 24 hours as a weakening
trough of low pressure will be situated across the southern great
lakes region. Conditions vary from MVFR toVFR for the most part
at 00z, with the ifr becoming less prevalent. The general thinking
is we will continue to see variable conditions as snow will weaken
and intensify at times through the period. Overall, though a slow
improving trend should be noted as we head from tonight into
Tuesday. Fairly widespread MVFR at least is in place and given the
time of year and time of day we should expected to see the MVFR
conditions continue or expand a bit into Tuesday morning. The
heating of the day and the weakening trough should tend to lift
ceilings a bit on Tuesday. We have the tafs trending towardVFR
Tuesday afternoon. Winds will generally be under 10 knots through
the period.

Hydrology
Issued at 313 pm est Mon jan 15 2018
observations through southwest lower michigan show overall stability
on area rivers. This is expected to be the case through the next few
days with highs near or below freezing through Thursday.

Next weekend's temperatures may be a factor in raising concerns for
additional ice jams. Guidance places a strengthening system over the
midwest, which results in strong southerly flow and temperatures in
the 40s through the area. Precipitation then streams in by early
next week, yielding amounts that exceed one inch through portions of
western michigan.

There is still plenty of time for forecast details to be worked out
and trends will need to be monitored over the next several days.

Grr watches warnings advisories
Mi... Winter weather advisory until 7 am est this morning for miz064-
071.

Lm... None.

Synopsis... Meade
short term... Meade
long term... 04
aviation... Duke
hydrology... Jam


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 82 mi67 min NNW 6 G 6 12°F 1025.7 hPa (+0.3)
CLSM4 - St. Clair Shores, MI 83 mi67 min SW 5.1 G 8 21°F 1026.4 hPa (+0.7)
THRO1 - 9063085 - Toledo, OH 87 mi49 min SW 8.9 G 12 12°F 1027.5 hPa6°F

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI11 mi74 minN 04.00 miLight Snow Fog/Mist15°F14°F95%1027.4 hPa
Mason, Mason Jewett Field Airport, MI12 mi72 minSW 37.00 miLight Snow16°F10°F78%1025.7 hPa
Owosso, Owosso Community Airport, MI22 mi72 minN 04.00 miFog/Mist10°F7°F87%1026.1 hPa
Howell, Livingston County Airport, MI24 mi72 minWSW 55.00 miLight Snow18°F16°F94%1025.1 hPa

Wind History from LAN (wind in knots)
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Last 24hrSE13SE11SE10SE12SE9SE12
G18
SE12SE8E10SE8SE5SE4SE3E4E3E4NE3NE3NE3CalmCalmNE3CalmW4
1 day agoCalmCalmCalmCalmCalmS4S8S10SW11S9S8SW11S9S8S9S11SE11S12
G18
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2 days agoNW5W5W4W7NW10NW11NW10
G18
NW12N5NW7NW9CalmW5NW3CalmCalmW3CalmCalmCalmCalmCalmCalmCalm

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Grand Rapids, MI (4,6,7,8)
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Ground Weather Radar Station Detroit, MI
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weather_mapweather_map weather_map

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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.