Monday, June26, 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 6:00AMSunset 9:22PM Monday June 26, 2017 1:14 PM EDT (17:14 UTC) Moonrise 8:00AMMoonset 10:32PM Illumination 7% 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.con.kdtx.ma.w.0014.000000t0000z-170623t0115z/ 844 Pm Edt Thu Jun 22 2017
.a special marine warning remains in effect until 915 pm edt... For the following areas... Detroit river... Lake st. Clair open lake (u.s. Portion)... At 844 pm edt...a strong Thunderstorm was located near the ambassador bridge...moving northeast at 30 knots. Hazard...wind gusts to 40 knots. Source...radar indicated. Impact...small craft could be damaged in briefly higher winds and suddenly higher waves. The strong Thunderstorm will be near... Grosse pointe around 855 pm edt. St. Clair shores around 910 pm edt. Metro beach metropark marina...st clair flats old channel light and mt clemens harbor of refuge around 915 pm edt. Precautionary/preparedness actions... Move to safe harbor until hazardous weather passes. && lat...lon 4255 8259 4256 8263 4254 8266 4237 8283 4232 8306 4232 8312 4238 8295 4245 8291 4254 8291 4259 8285 4266 8285 4272 8269 4270 8263 4261 8254 4262 8260 4261 8258 4260 8255 4261 8253 time...mot...loc 0044z 241deg 29kt 4238 8306 hail...0.00in wind...40kts
This is a Weather Statement Zone, please check the Date to see if it has expired
LCZ423 Expires:201706230115;;663543 FZUS73 KDTX 230044 MWSDTX MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 844 PM EDT THU JUN 22 2017 LCZ423-460-230115-

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 261520
afdgrr
area forecast discussion
national weather service grand rapids mi
1120 am edt Mon jun 26 2017
latest update...

hydro

Synopsis
Issued at 330 am edt Mon jun 26 2017
another unseasonably chilly day is in store with highs only in the
60s and scattered rain showers. Temperatures will gradually moderate
after today, returning to closer to normal by mid to late week.

However the return of the warmer air will also result in showers
and thunderstorms with a risk of some stronger storms and locally
heavy rain.

Short term (today through Wednesday)
issued at 330 am edt Mon jun 26 2017
the last in a series of vorticity maxima upper lows in the
anomalous northwest flow pattern arrives this afternoon. Expect
an increase in clouds and shower coverage as this feature drops
in, with thunder probabilities also creeping up by afternoon.

Since the shortwave arrival is coincident with peak heating, can't
rule out a few isolated stronger cells today with strong gusty
winds and small hail. Freezing levels drop to 6500-7000 ft this
afternoon. The pattern is also supportive of cold air funnels as
the core of the cold air with h8 temps around 3c comes overhead
later today.

Shower coverage will decrease after sunset, then arrival of
surface ridging on Tuesday will lead to quieter weather
continuing into the first half of Wednesday. However the warm air
is quick to surge back in from the southwest later Wednesday as
low level jet cranks up to 50 kts over wi il in the afternoon.

Showers and tstms are likely north and west of grr by late in the
day.

Long term (Wednesday night through Sunday)
issued at 330 am edt Mon jun 26 2017
active wx is anticipated mid to late week with potential for several
rounds of convection. A low pressure system will move east into the
upper midwest Wednesday night and bring the first round of showers
and storms.

Convection will develop on the nose of a strong 45-55 kt llj. This
in conjunction with increasing low level moisture and some weak to
moderate instability will set the stage for convective development.

Some strong to potentially severe storms are possible given this
synoptic setup and fairly strong deep layer shear.

Medium range guidance continues to show potential for a frontal
boundary to then stall out near our just south of our fcst area
Thursday through Thursday night. This would continue to focus
development of more showers and storms. Another low pressure system
will then move through our region Friday through Friday night and
bring more convection. A few showers may linger into Saturday before
a cooler and drier airmass advects in for later in the weekend.

Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 752 am edt Mon jun 26 2017
diurnal cumulus clouds should become more widespread through the
morning, starting out with sct-bkn MVFR bases of 1500-2500 ft,
lifting to mostly bkn-ovcVFR levels around 3500 ft by noon.

Isolated showers this morning will become more numerous, with
tstms also possible in the afternoon evening. Some small hail
could occur. West winds will be gusty today at 15 to 30 kts, and
possibly even some stronger gusts if a heavier cell moves through.

Winds will decrease below 10 knots tonight.

Marine
Issued at 330 am edt Mon jun 26 2017
cold advection and cyclonic flow similar to a fall pattern will
result in hazardous winds and waves today into the evening.

Arrival of the upper low this afternoon and even colder air aloft
will also the support the possibility of a few tstms and waterspouts.

After a calmer period on lake michigan Tuesday, winds and waves
will increase to hazardous levels again on Wednesday into
Thursday with southwest flow.

Hydrology
Issued at 1119 am edt Mon jun 26 2017
river levels are trying to return to normal across the region... With
the chippewa river at mt. Pleasant and pine river at alma above flood
stage. Scattered showers and thunderstorms... Which will develop as
an upper low moves over the state this afternoon... Are not expected
to produce the areal coverage or intensity of precipitation needed
to slow the falling of the stages. Therefore... Expect river levels
to continue to fall steadily over the next 24 hours.

Another round of potentially heavy rainfall will occur later
Wednesday into Wednesday night. Deep moisture returns to the
region... And bands of heavy rainfall may occur across central
portions of lower michigan. Rivers in isabella and gratiot
counties are especially vulnerable to excessive rainfall... And
significant rises would likely develop on the pine and chippewa
rivers should the heavy rainfall occur in these basins.

Grr watches warnings advisories
Mi... Beach hazards statement through this evening for miz037-043-050-
056-064-071.

Lm... Small craft advisory until midnight edt tonight for lmz844>849.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 88 mi74 min W 19 G 23 61°F 1014.2 hPa (-0.4)
HLNM4 - 9087031 - Holland, MI 88 mi44 min W 14 G 18 60°F 1017.7 hPa
CLSM4 - St. Clair Shores, MI 91 mi74 min WSW 13 G 17 65°F 1016.9 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 mi21 minWSW 19 G 2410.00 miPartly Cloudy and Breezy68°F41°F38%1016.6 hPa
Mason, Mason Jewett Field Airport, MI12 mi22 minW 15 G 2210.00 miMostly Cloudy68°F43°F41%1016.9 hPa
Charlotte, Fitch H Beach Airport, MI16 mi19 minW 10 G 2110.00 miMostly Cloudy67°F45°F47%1016.9 hPa

Wind History from LAN (wind in knots)
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Last 24hrW18
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W8W5SW6SW5SW4W6SW7SW8W7W7SW6W10
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1 day agoSW20
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G26
2 days agoNW10NW11W12W9NW10NW9W10W5W4SW6W7W8W7W7W8W9W8W7W9W7W9W7W14
G19
W13
G20

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 (13,3,4,5)
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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.