Saturday, September23, 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 7:26AMSunset 7:33PM Saturday September 23, 2017 4:05 PM EDT (20:05 UTC) Moonrise 9:48AMMoonset 8:43PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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.exp.kdtx.ma.w.0050.000000t0000z-170904t2300z/ 652 Pm Edt Mon Sep 4 2017
.the special marine warning will expire at 700 pm edt... The affected areas were... Detroit river... Lake st. Clair open lake (u.s. Portion)... St. Clair river... While Thunderstorms have weakened significantly, expect occasional lightning and heavy downpours along with isolated wind gusts to near 30 knots. A severe Thunderstorm watch remains in effect until 1100 pm edt for southeastern michigan. Lat...lon 4262 8252 4255 8258 4254 8266 4238 8282 4232 8307 4224 8313 4211 8313 4210 8322 4225 8318 4233 8311 4239 8294 4244 8291 4254 8291 4259 8285 4266 8285 4272 8269 4270 8261 4264 8256 4274 8252 4275 8248 time...mot...loc 2250z 262deg 50kt 4283 8189 4228 8280
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201709042300;;893398 FZUS73 KDTX 042252 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 652 PM EDT MON SEP 4 2017 LCZ422-423-460-042300-

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 231856
afdgrr
area forecast discussion
national weather service grand rapids mi
300 pm edt Sat sep 23 2017
latest update...

synopsis short term long term marine

Synopsis
Issued at 300 pm edt Sat sep 23 2017
hot and humid weather will continue through the weekend into early
next week. A cold front will bring a chance of showers Wednesday
and a stronger cold front will bring showers and thunderstorms
with much cooler air late in the week.

Short term (this evening through Monday night)
issued at 300 pm edt Sat sep 23 2017
sfc upper ridging and persistent south to SW flow WAA will result
in a continuation of unseasonably hot and humid wx through the
short term fcst period. High temps Sunday will again reach the
upper 80's to lower 90's with a couple of mid 90's maxes possible
once again at typically hottest driest locations from kgrr klan
off to the south. Heat indices Sunday afternoon will once again
reach well into the 90's.

Large scale subsidence and lack of a forcing mechanism for
convective initiation to occur should result in persistent dry
conditions through the short term fcst period. A CU field has
developed mainly north of i-96 and near to east of us-131 and it
is not completely impossible that an isolated shower may develop
near kmop late this aftn when instability will be maximized.

Therefore I added mention of isolated showers to the fcst late
aftn early eve over our far NE fcst area.

Long term (Tuesday through Saturday)
issued at 300 pm edt Sat sep 23 2017
confidence remains high that a sharp cool down will take place at
the end of next week. However prospects are not looking good for any
widespread appreciable rainfall. Looks like the drought continues.

Guidance is similar in showing the first cold frontal passage on
Tuesday night early Wednesday although this feature comes through
mostly dry due to limited moisture upper support and unfavorable
timing of the frontal passage. Actually Wednesday and Thursday
should be pleasant days with lower dew points behind the sfc front
but temps still a bit above normal.

Perhaps a better risk of rain showers arrives for late Thursday
night into Friday with the main push of cold air and arrival of the
upper trough. However there is not much support for lake
effect enhancement since the low level flow GOES northerly once the
coldest air comes in and sfc ridging is already building in on
Saturday.

Aviation (for the 18z tafs through 18z Sunday afternoon)
issued at 135 pm edt Sat sep 23 2017
vfr weather will prevail the next 24-36 hours. There is a very low
risk of an inland shower or storm this afternoon, but confidence
is too low to have anything in the tafs. Can't rule out some
patchy fog late tonight but it seems that threat is also too
limited to have in the tafs.

Marine
Issued at 300 pm edt Sat sep 23 2017
wave heights will remain minimal at less than 2 feet through the
rest of the weekend with south to southwest winds around 5 to 10
kts.

Hydrology
Issued at 1131 am edt Sat sep 23 2017
rivers are running around normal to below normal for the time of
year. Meanwhile, the us drought monitor is indicating dry conditions
across southern lower michigan. Near-record warmth is expected today
through Monday. The next good chance for rain is Wednesday. No river
issues are expected through the week.

Grr watches warnings advisories
Mi... None.

Lm... None.

Synopsis... Laurens
short term... Laurens
long term... Meade
aviation... Meade
hydrology... 63
marine... Laurens


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 88 mi66 min SE 8 G 8 83°F 1019 hPa (-1.0)
HLNM4 - 9087031 - Holland, MI 88 mi48 min NW 1.9 G 2.9 76°F 1018.6 hPa
CLSM4 - St. Clair Shores, MI 91 mi66 min SE 4.1 G 5.1 76°F 1020.7 hPa (-0.6)

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI5 mi73 minVar 410.00 miFair92°F59°F33%1019.5 hPa
Mason, Mason Jewett Field Airport, MI12 mi73 minE 310.00 miFair92°F57°F31%1020.3 hPa
Charlotte, Fitch H Beach Airport, MI16 mi71 minN 010.00 miFair92°F57°F31%1020 hPa

Wind History from LAN (wind in knots)
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Last 24hrSE4W3CalmCalmCalmS4CalmW4CalmCalmSE3CalmCalmCalmE4CalmCalmSW4SW3CalmW4W346
1 day agoNE20
G25
NW7E5E7CalmSE4W4CalmE3CalmE3CalmSE4SE4SE3CalmCalmSW4Calm4Calm3NE3E4
2 days agoSW5S7S5S4SE5SE8S7SE6SE6SE7SE8SE6SE5S4CalmS5S6S6S7SW8S6SW8SW11SW10

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 (16,3,4,5)
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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.