Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Lansing, 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 7:53AMSunset 6:52PM Tuesday October 17, 2017 7:17 AM EDT (11:17 UTC) Moonrise 4:26AMMoonset 5:13PM Illumination 9% Phase: Waning Crescent; Moon at 27 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 Lansing, MI
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location: 42.71, -84.56     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 171022
afdgrr
area forecast discussion
national weather service grand rapids mi
622 am edt Tue oct 17 2017
latest update...

aviation

Synopsis
Issued at 305 am edt Tue oct 17 2017
a large area of high pressure over the central appalachians will
remain nearly stationary over the next couple of days. This fair
weather system will lead to dry weather here in lower michigan.

Conditions will be breezy at times with a moderating trend to the
temperatures through Wednesday.

Short term (today through Thursday)
issued at 305 am edt Tue oct 17 2017
the high pressure system setting up over the central appalachians
will remain nearly stationary over the next couple of days. There
will be a cold front dropping down from the northwest on
Wednesday. The low pressure system associated with this front will
be rather deep with sub 980 mb pressure readings as it tracks
eastward through the canadian prairies through wed. As a
result... A tight pressure gradient will set up between the low and
high pressure systems. This will support a rather long period of
gusty winds... Especially during the warmest parts of the day.

Temperature values will end up well above normal for the period
given the persistent warm air advection that will be in place.

While a front will be dropping down from the northwest on
Wednesday... This feature looks dry. This is because the main
forcing and better saturation remains well to the north in canada.

The front will also be weakening as it moves in.

Long term (Thursday night through Monday)
issued at 305 am edt Tue oct 17 2017
unseasonably warm and pleasant wx will continue Thursday night
through Saturday in a south to southwest flow warm air advection
pattern on the back side of the eastern CONUS ridge. High
temperatures Friday through Saturday will range from the upper 60's
to middle 70's which is ten to twenty degrees above normal for this
time of year.

A cold front will move in from the west and bring a chance of
showers Sunday. Unsettled wx will then continue early next week as a
significant wx pattern change occurs as an upper level trough
amplifies over our region. As such we expect showers to linger early
next week. High temperatures Monday will reach the lower to perhaps
middle 60's. Cooler wx will follow for Tuesday and Wednesday with
high temps Tuesday only in the 50's.

Aviation (for the 12z tafs through 12z Wednesday morning)
issued at 619 am edt Tue oct 17 2017
with the lower levels of the atmosphere remaining dry...VFR
weather is forecasted to prevail through the period. Impacts may
be felt at the TAF sites from the wind as gusts will occasionally
top 25 knots.

Marine
Issued at 305 am edt Tue oct 17 2017
a weak cold front will press down from the northwest Wednesday
into Thursday. As this feature bumps into the high pressure system
over the central appalachians... The pressure gradient will tighten
up over the nearshore zones. This will support gusty winds at
times leading to hazardous marine conditions for small craft.

Hydrology
Issued at 1104 am edt Mon oct 16 2017
rivers seem to be cresting lower than expected. Most likely
relatively dry soil, low inland lake levels, and fairly low river
level base states (due to abnormally dry weather the past few
months) have mitigated many of the impacts. Some impacts still
remain in southern van buren and western kalamazoo counties where
rain totals ranged between 6 and 9 inches. Roughly 10 roads were
closed due to flooding in southern van buren and some may have been
washed out. The paw paw and black rivers are running high, perhaps
out of banks in spots, but appear to be cresting today. Dry weather
the rest of this week will allow rivers to subside.

Grr watches warnings advisories
Mi... None.

Lm... Small craft advisory until 8 pm edt Wednesday for lmz844>849.

Synopsis... Mjs
short term... Mjs
long term... Laurens
aviation... Mjs
hydrology... Cas
marine... Mjs


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 88 mi77 min SW 24 G 27 51°F 1019.6 hPa (-1.4)
HLNM4 - 9087031 - Holland, MI 88 mi47 min S 20 G 23 60°F 1020.6 hPa48°F
CLSM4 - St. Clair Shores, MI 91 mi77 min SSW 5.1 G 7 48°F 1024 hPa (-0.4)

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI5 mi24 minSSW 810.00 miFair45°F37°F74%1022.6 hPa
Mason, Mason Jewett Field Airport, MI12 mi23 minN 010.00 miFair46°F37°F74%1023 hPa
Charlotte, Fitch H Beach Airport, MI16 mi23 minSSW 710.00 miFair44°F37°F79%1022 hPa

Wind History from LAN (wind in knots)
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Last 24hrCalmCalmE3SW5W7SW6SW6SW10W4W10W3W5SW4CalmCalmS5S3S6S6S7S4S5SW9SW8
1 day agoSW16
G25
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W17NW14
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NW10NW6NW5NW6NW3W3CalmCalmCalmNW3CalmNW3Calm
2 days agoSE5E4E6SE4SE8SE8SE7SE9S10S13S12
G21
S12S10S9S16SE8NW12SE8S10SW8S13SW13
G19
S16SW13

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 (7,2,3,4)
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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.