Monday, October23, 2017 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 8:00AMSunset 6:43PM Monday October 23, 2017 8:25 PM EDT (00:25 UTC) Moonrise 10:31AMMoonset 8:27PM Illumination 15% Phase: Waxing Crescent; Moon at 4 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 232352
afdgrr
area forecast discussion
national weather service grand rapids mi
752 pm edt Mon oct 23 2017
latest update...

aviation

Synopsis
Issued at 328 pm edt Mon oct 23 2017
low pressure moving north across lower michigan will continue to
bring heavy rain with some flooding expected through Tuesday. The
low will deepen on Tuesday and winds will be ramping up with some
strong wind gusts Tuesday and Tuesday night.

Short term (this evening through Wednesday night)
issued at 328 pm edt Mon oct 23 2017
heavy rain tonight into Tuesday and high winds Tuesday into
Tuesday night are the main forecast issues in the near term.

The flood watch was replaced with areal flood warning across the
western third of the forecast area and an areal flood advisory to
its east. The southeast zones are not expected to see flooding and
the watch was dropped there.

Surface low was centered just south of azo at 330 pm and is moving
north with strong area of f-gen expected to continue producing
inch an hour rain rates across the warning area through the
evening. We have been fortunate that the bulk of the heaviest rain
has remained over lake michigan so far today, but amounts over 2
inches have occurred across parts of ottawa, muskegon, oceana
counties with a report of nearly 2.25 inches near holland at 320
pm. The heavier rain is moving onshore and the hrrr has the f-gen
area pivoting across our northwest zones tonight.

So 3 to 5 inches of rain is possible in the warning area with
amounts of an inch or less across the southeast zones by Tuesday
afternoon.

The other issue we will have to deal with high winds on Tuesday as
the low rapidly deepens across northern lower michigan.

Tightening pressure gradient and strong cold advection will
combine to bring gusts to wind advisory criteria during the
morning across the northern coastal zones and by afternoon across
central and southern zones. We have issued a wind advisory for
this area. The winds will subside after midnight as the low pulls
away.

Long term (Thursday through Monday)
issued at 328 pm edt Mon oct 23 2017
main weather highlights in the long term period are a period of
milder and quieter weather Thursday into Friday, followed by more
cold air for the weekend through halloween.

Quiet weather day expected for Thursday due to shortwave ridging in
between the exiting upper trough and the next one dropping into the
north central u.S.. Also milder temperatures expected on Thursday
with high temps 55 to 60 as warm advection strengthens in advance of
next approaching system. Friday may also be a mild day if the slower
ecmwf timing of the next cold front is correct.

Deep longwave trough is progged to impact the great lakes region
next weekend, resulting in scattered showers with highs only in the
mid 40s. Some snow showers will be possible at night and in the
early morning when temperatures cool, especially inland from lake mi
and in higher elevation areas. Any clearing at night could lead to
sub freezing temperatures.

Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 748 pm edt Mon oct 23 2017
with the storm system remaining in the region through
Tuesday... Impacts will continue at the TAF sites. Ifr MVFR
conditions will prevail with localVFR possible. As the colder
air wraps in behind the storm for Tuesday lake effect moisture
will keep the ceilings and visibilities low through the day.

Gusts over 25 knots will be possible... Especially on Tuesday for
kmkg.

Marine
Issued at 328 pm edt Mon oct 23 2017
no significant changes to the previous forecast. Winds and waves
will be increasing tonight and gales are still expected to develop
on Tuesday. Northwest gales will probably begin during the
morning across areas north of whitehall and during the afternoon
south of there.

Hydrology
Issued at 1211 pm edt Mon oct 23 2017
river levels are rising across the area. Rainfall of up to two
inches has fallen through this morning and another two to three
inches are possible through Tuesday. More rain is also possible
through the week. Warnings have been issued for croton on the
muskegon river, rockford on the rogue river, and vicksburg on the
portage river. More river warnings could be issued depending on the
amount of rain that falls and where it falls. Areal flood warnings
and watches are also in effect though Tuesday.

Grr watches warnings advisories
Mi... Wind advisory from 2 pm Tuesday to 3 am edt Wednesday for miz050-
056-064.

Wind advisory from 8 am Tuesday to 3 am edt Wednesday for miz037-
043.

Lm... Gale watch from Tuesday morning through Wednesday morning for
lmz844>849.

Small craft advisory until 10 am edt Tuesday for lmz844>849.

Synopsis... Ostuno
short term... Ostuno
long term... Meade
aviation... Mjs
hydrology... 63
marine... Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 82 mi25 min ESE 16 G 18 60°F 994.9 hPa (-6.1)
CLSM4 - St. Clair Shores, MI 83 mi25 min S 11 G 18 61°F 998.6 hPa (-3.4)
THRO1 - 9063085 - Toledo, OH 87 mi37 min 998.7 hPa

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI11 mi32 minWNW 15 G 234.00 miRain Fog/Mist53°F51°F93%995.6 hPa
Mason, Mason Jewett Field Airport, MI12 mi31 minS 65.00 miRain60°F57°F92%994.9 hPa
Owosso, Owosso Community Airport, MI22 mi30 minS 95.00 miDrizzle62°F59°F92%994.9 hPa
Howell, Livingston County Airport, MI24 mi30 minSSE 10 G 155.00 miFog/Mist59°F57°F94%995.6 hPa

Wind History from LAN (wind in knots)
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S9SW6S6SE34SE5SE4S4SE5CalmE4S5SE6SE6SE5E3E6SW8NW15
G23
1 day agoS6S8S10S9S7S8S9S8S10S8SE7S7S10
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S11S12S8S12
2 days agoS7S7S6S5S6S6S6S3S4S6S6S6S7S8S9S14S13S13S10S11S11S9S6S8

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 (20,4,5,8)
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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.