Tuesday, April23, 2019 L-36.com


Marine Weather and Tides
River Rouge, MI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:37AMSunset 8:23PM Tuesday April 23, 2019 7:12 AM EDT (11:12 UTC) Moonrise 12:00AMMoonset 8:43AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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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LCZ423 Expires:201903150145;;390439 Fzus73 Kdtx 150100 Mwsdtx Marine Weather Statement National Weather Service Detroit/pontiac Mi 900 Pm Edt Thu Mar 14 2019 Lcz422-423-460-lhz442-443-463-464-150145- /o.con.kdtx.ma.w.0001.000000t0000z-190315t0145z/ 900 Pm Edt Thu Mar 14 2019
.a special marine warning remains in effect until 945 pm edt... For the following areas... Detroit river... Harbor beach to port sanilac mi... Lake huron from harbor beach to port sanilac 5nm off shore to us/canadian border... Lake huron from port sanilac to port huron 5nm off shore to us/canadian border... Lake st. Clair open lake (u.s. Portion)... Port sanilac to port huron mi... St. Clair river... At 900 pm edt, strong Thunderstorms were located along a line extending from 15 nm east of harbor beach to near lexington to 18 nm northwest of wyandotte, moving northeast at 40 knots. Hazard...wind gusts 34 knots or greater and small hail. Source...radar indicated. Impact...small craft could be damaged in briefly higher winds and suddenly higher waves. Strong Thunderstorms will be near... Lexington and lakeport around 905 pm edt. St. Clair shores around 945 pm edt. Other locations impacted by strong Thunderstorms include richmondville. Precautionary/preparedness actions... Move to safe harbor until hazardous weather passes. && lat...lon 4292 8246 4262 8252 4254 8266 4237 8283 4232 8306 4215 8313 4214 8322 4233 8312 4239 8295 4266 8285 4272 8269 4270 8261 4264 8256 4265 8255 4301 8247 4322 8256 4365 8263 4384 8228 4385 8218 4359 8212 time...mot...loc 0100z 234deg 38kt 4375 8231 4323 8251 4239 8350 hail...<.75in wind...>34kts
LCZ423


7 Day Forecast for Marine Location Near River Rouge, MI
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location: 42.25, -83.06     debug


Area Discussion for - Detroit/Pontiac, MI
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Fxus63 kdtx 230959
afddtx
area forecast discussion
national weather service detroit pontiac mi
559 am edt Tue apr 23 2019

Aviation
Cold front on pace to sweep across the region late this morning.

Rapidly waning window for possible shower and thunderstorm
development in advance of the front as the narrow pre-frontal axis
of mid level instability exits to the east. Extensive area of post-
frontal low level moisture will then lift across the region during
the midday period. This will translate into a period of MVFR to low
vfr stratus well into the afternoon. Early day pre-frontal south to
southwest winds turning westerly and strengthening into the
afternoon. Gusts reaching 25 knots at times. Clearing skies with
diminishing winds this evening.

For dtw... Narrow window yet for potential thunderstorm development
in advance of a cold front thru 14z . Cold front then tracks across
dtw late this morning ~15z . Developing post-frontal westerly winds
will turn gusty this afternoon. This may result in a period of gusts
near crosswind thresholds for winds from a 280-290 direction.

Dtw threshold probabilities
* low in thunderstorm occurrence through 14z.

* high for ceiling AOB 5000 ft today.

* moderate in westerly wind gusts reaching crosswind thresholds this
afternoon.

Prev discussion
Issued at 401 am edt Tue apr 23 2019
discussion...

dramatically lowered pops this morning with virtually no convective
response south of about i-69 owing to poorly convergent veered flow
and poor lapse rates within the sub-8kft effective layer. Another
round of isolated shallow showers with a chance of thunder will work
through the CWA between about 09z and 13z as the instability axis
draws north in advance of the incoming mid-level wave. Surface cold
front will then sweep through the CWA from west to east between
roughly 13-17z, the ensuing cold advection deepening the boundary
layer and supporting gusty winds through the daylight hours. H85
temps are progged to fall from the low teens into the mid single
digits during this time, surface temperature falls largely offset by
seasonally strong insolation. Post-frontal stratus will aggressively
clear during the afternoon as deep layer confluent flow and surface
high pressure builds in from the west. Unremarkable pattern through
the week as nwp continue to struggle with timing of lower amplitude
waves within relatively fast moving flow aloft. One way or another,
expect occl chances for rain with relatively small temperature
oscillations about climo. After a choice day on Wednesday featuring
nearly full insolation, light wind, and highs in the 60s within the
modest mid-level thermal trough, the next opportunity for precip
arrives late thurs. Eventual phasing of incoming northern stream
energy with the low ejecting out of the SW us will do little for
precip chances locally as the southern wave forces better moisture
well east. Nothing more than a chc pop warranted attm. Hints in some
of the guidance for greater longwave amplification potential by
week's end appear unlikely given fast-moving flow and poor
environment for wave amplification east of the rockies. Forecast
simply favors temps remaining slightly below climo during this time
as zonal aggregate westerlies stick near 45n.

Marine...

cold front on pace to lift across the region today. A brief period
of moderate southerly flow this morning will shift to northwest with
the frontal passage. Winds will strengthen for a time this
afternoon, with gusts reaching 20 to 25 knots at times mainly over
the open waters. This will preclude issuance of small craft
headlines for the nearshore waters at this time. Winds diminish
tonight as high pressure builds into the region. This high will
maintain lighter winds on Wednesday. Modest southwest winds will
develop Thursday as weak frontal boundary lifts into the great
lakes.

Dtx watches warnings advisories
Mi... None.

Lake huron... None.

Lake st clair... None.

Michigan waters of lake erie... None.

Aviation... ..Mr
discussion... Jvc
marine... ... .Mr
you can obtain your latest national weather service forecasts online
at

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLSM4 - St. Clair Shores, MI 18 mi72 min S 7 G 9.9 55°F 1011.2 hPa (-3.4)
THLO1 - Toledo Light No. 2 OH 30 mi132 min S 11 G 12 57°F
AGCM4 38 mi54 min 56°F 44°F1010.3 hPa
TWCO1 40 mi32 min SSW 18 G 21 62°F 1007 hPa48°F
SBIO1 - South Bass Island, OH 44 mi72 min S 15 G 16 61°F 1011.6 hPa (-2.7)
THRO1 - 9063085 - Toledo, OH 44 mi54 min SSW 12 G 15 61°F 1011 hPa46°F

Wind History for Toledo, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Detroit/Grosse Ile, Grosse Ile Airport, MI12 mi76 minS 1010.00 miMostly Cloudy53°F46°F79%1010.5 hPa
Coleman A Young Municipal Airport, MI13 mi79 minS 710.00 miMostly Cloudy58°F46°F65%1010.8 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI14 mi79 minS 47.00 miThunderstorm Light Rain56°F46°F70%1010.4 hPa
Troy, Oakland/Troy Airport, MI21 mi76 minS 710.00 miRain58°F44°F59%1011.2 hPa

Wind History from ONZ (wind in knots)
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Last 24hrS4S3CalmS5S6S6S7SE9SE7SE7SE6SE7SE5SE7SE7E5E5CalmSE4S7S6SE10S10
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1 day agoCalmCalmW3S4S8S8S9S7S7S8S6S5S6S7SE8SE7SE8S4S4S5S4S3S5S4
2 days agoN18
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N8N4N3N6NW4N6CalmW4W4W3W3W3W3Calm

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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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.
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Wind Forecast for Detroit/Pontiac, MI (7,2,3,4)
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Ground Weather Radar Station Detroit, MI
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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.