Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Haslett, MI

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:37AMSunset 8:33PM Wednesday April 25, 2018 1:44 PM EDT (17:44 UTC) Moonrise 2:52PMMoonset 3:43AM Illumination 79% Phase: Waxing Gibbous; Moon at 10 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 251707
afdgrr
area forecast discussion
national weather service grand rapids mi
107 pm edt Wed apr 25 2018
latest update...

aviation

Synopsis
Issued at 330 am edt Wed apr 25 2018
the passage of a cold front this morning will end the threat of
showers and be followed by breezy and cool conditions today. High
pressure will provide a sunny and pleasant day Thursday with
lighter winds before another cold front on Friday brings our next
chance of showers. Cool weather with highs in the 50s will
prevail behind this front over the weekend, but a significant warm
up with highs in the 70s will follow for early next week.

Short term (today through Friday)
issued at 330 am edt Wed apr 25 2018
a few rain showers will remain possible through daybreak with the
mid level trough and sfc cold front still coming through.

Surprisingly sfc dew pts are around 50 early this morning ahead of
the front, which currently extends from about mt pleasant to
muskegon.

North winds will drive in much drier air behind the front and dew
points will fall into 30s. This will scour out the low clouds
this morning, but a broken diurnal cumulus deck should impact
areas east of highway 131 this afternoon with thermal troughing
and residual moisture progged at 850 mb.

High confidence for a sunny day with light winds on Thursday as
the sfc high slides through. Highs are expected to reach the
lower 60s, which is about normal for this time of year.

Next cold front upr trough has little moisture and brings only
light precip amounts chance pops late Thursday night and Friday.

Main impact of this next front will be to usher in more chilly
weather for a couple days.

Long term (Friday night through Tuesday)
issued at 330 am edt Wed apr 25 2018
a strong upper level disturbance moving in from the northwest will
bring scattered light rain showers Friday night. A few wet snow
flakes may mix in overnight north of i-96. After that high pressure
will build in to bring fair and seasonably cool wx this weekend.

Temps will undergo a significant moderating trend early next week as
strong south to SW flow warm air advection develops on the back side
of the departing ridge. High temps of around 70 degrees are
anticipated for Monday and temps will reach well into the 70s by
Tuesday.

Persistent SW flow WAA will allow high temps to reach the middle 70s
to near 80 degrees again Wednesday. The continued SW flow will also
result in a gradual increase in moisture and some showers and
thunderstorms are possible late Tuesday night into midweek.

Aviation (for the 18z tafs through 18z Thursday afternoon)
issued at 1258 pm edt Wed apr 25 2018
high confidence withVFR conditions continuing through the
afternoon as drier air works into the area behind a cold front.

North-northwest winds will gust to around 20 knots this afternoon
before subsiding this evening. Gusts may drop off a little before
00z as the gradient starts to weaken. High pressure building into
lower michigan tonight will promote clear skies and nearly calm
winds. This could provide some light shallow fog tonight between
09-12z, especially in favored locations. Confidence in formation
is low at this time, and will continue to look at new data and
reassess.

Marine
Issued at 330 am edt Wed apr 25 2018
no changes to the small craft advisory as period of 15-25 kt
northerly flow through this evening leads to rough conditions on
lk mi. Winds and waves subsiding overnight and followed by more
tranquil conditions on Thursday. Wind and wave could reach
hazardous levels again on Friday behind the next cold front.

Hydrology
Issued at 321 pm edt Tue apr 24 2018
with no significant precipitation expected, river stages will
continue to fall and the 5 current advisories should be able to be
dropped relatively soon.

Grr watches warnings advisories
Mi... None.

Lm... Small craft advisory until 8 pm edt this evening for lmz848-849.

Small craft advisory until 2 am edt Thursday for lmz844>847.

Synopsis... Meade
short term... Meade
long term... Laurens
aviation... Hlo
hydrology... Tjt
marine... Meade


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SBLM4 - Saginaw Bay Light #1, MI 82 mi45 min NE 8 G 11 42°F 1015.2 hPa (+0.3)
CLSM4 - St. Clair Shores, MI 83 mi45 min NNW 14 G 18 52°F 1013.9 hPa (-0.3)
THRO1 - 9063085 - Toledo, OH 87 mi45 min NNW 7 G 9.9 56°F 1013.6 hPa (+0.0)46°F

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Capital Region International Airport, MI11 mi52 minNNW 11 G 2110.00 miPartly Cloudy55°F39°F55%1015.4 hPa
Mason, Mason Jewett Field Airport, MI12 mi50 minNNW 1210.00 miMostly Cloudy57°F37°F50%1014.6 hPa
Owosso, Owosso Community Airport, MI22 mi50 minNW 610.00 miMostly Cloudy54°F39°F59%1014.6 hPa
Howell, Livingston County Airport, MI24 mi50 minNW 910.00 miMostly Cloudy54°F40°F59%1014.2 hPa

Wind History from LAN (wind in knots)
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Last 24hrCalmCalmNE6SE8SE6N5NE4N5NE3N5NW4N3N4NW4N7N16
G20
N11N10N7N9N11N10N9
G19
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1 day agoE5
G14
SE8E10SE7S9SE11SE11S10S9
G19
S10S12S9S8S7S5E3E3E6E7SE7SE14SE13
G18
SE10SE7
2 days agoSE8E10
G18
E5E12
G17
E9E10E7E8SE5SE7SE7NE4E5NE7NE6E5NE4NE4NE3NE6NE5E8NE8E7

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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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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.