Saturday, December14, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Detroit, MI

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:52AMSunset 5:01PM Saturday December 14, 2019 8:59 PM EST (01:59 UTC) Moonrise 7:34PMMoonset 10:08AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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
    EDIT      (on/off)   Help
LCZ422 /o.can.kdtx.ma.w.0062.000000t0000z-191027t1045z/ 633 Am Edt Sun Oct 27 2019
.the special marine warning is cancelled... The affected areas were... NEarshore and open waters from port sanilac to port huron mi... St. Clair river... The showers have weakened and no longer pose a significant threat to boaters. However, gusty winds to 30 knots will persist. Lat...lon 4300 8242 4296 8242 4292 8246 4282 8248 4276 8247 4262 8251 4259 8254 4270 8264 4269 8260 4266 8259 4264 8256 4276 8251 4289 8252 4301 8247 4322 8256 4341 8259 4343 8255 4343 8220 time...mot...loc 1030z 264deg 39kt 4320 8228 4239 8143
LCZ422 Expires:201910271042;;344484 FZUS73 KDTX 271033 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 633 AM EDT Sun Oct 27 2019 LCZ422-LHZ443-464-271042-


7 Day Forecast for Marine Location Near Detroit city, MI
   Hourly   EDIT   Help
location: 42.38, -83.1     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KDTX 142318 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 618 PM EST Sat Dec 14 2019

AVIATION.

A deeper plume of low level moisture will take residence tonight within an increasingly cold west-northwest wind. This process initially marked this evening by a reduction in ceiling heights and retention of some visibility restrictions. Prevailing MVFR to IFR conditions through midnight, with some pockets of drizzle possible. Temperatures hovering just above freezing precludes any concern for freezing drizzle during this time. Conditions will become favorable for some downstream penetration of light lake effect snow showers during the early-mid morning hours Sunday. Outgoing forecast continues to highlight the most likely window for development, calling for a modest response with limited accumulation potential. Gradual low level drying will ease ceilings into VFR as stratus lingers throughout Sunday. Moisture may prove sufficient to offer some flurries into the afternoon, but additional meaningful activity is not expected.

For DTW . Extensive lower stratus will hold firm through the night. This will be accompanied by some reduction of visibility /3-5 mi/ and potentially some pockets of drizzle. Any dz will occur with temperatures still above freezing. Window for snow shower activity centered mid morning Sunday /09z-13z/. Any accumulation will remain minor.

DTW THRESHOLD PROBABILITIES .

* High for cigs below 5000 ft through Sunday * Ptype expected to be drizzle if any prior to 06z, then snow late tonight with patchy coverage.

PREV DISCUSSION. Issued at 329 PM EST Sat Dec 14 2019

DISCUSSION .

A stratus deck is rapidly advancing across the area within strengthening west-northwest low level flow. Upstream radar with some visibility restrictions do suggest some drizzle may be falling out of this low cloud deck. Given that temps are near 40 over most of the area and the boundary layer should remain relatively well mixed this evening, suspect any light drizzle will occur with temps just above freezing. A northern stream trough advancing across the nrn Great Lakes tonight will drive colder air into Se Mi with 850mb temps expected to drop into the negative teens by Sun afternoon. A growing depth of the mixed layer tonight and cooling near the top of the cloud layer should initiate ice nucleation, allowing snow showers to become the dominate precip type. Convergence along a passing sfc trough axis and an increase in the Lake Mi response will be the main factors driving the snow shower activity overnight into Sun morning. The brevity of snow shower activity and less than ideal snow microphysics should keep any snow accums under an inch. Significant drying during the day Sunday should temper any activity that releases off Lake Mi to just flurries Sun afternoon.

The last couple model runs have shown a trend toward less amplified waves (and suppressed to the south) in the southern stream Sun night into Tuesday, likely due to more progressiveness in the northern stream waves across Central Canada and the Dakotas. This results in the bulk of model solutions keeping precip assoicated with the tightening low-mid level baroclinic zone across the Ohio Valley south of the state. This has warranted a reduction in pops Sun night and Monday. There remains some degree of uncertainty with respect to the timing and amplitude of a strong wave forecast to eject out of the southern Rockies on Monday. The NAM and Canadian maintain enough amplitude with this wave to clip portions of Se Mi with the deformation axis, enough to maintain the chance of snow in the south Mon night. The Euro and even the GFS (which was the more bullish with this feature) are more sheared and essentially keep most of Se Mi dry.

A polar low is forecast to drop out of central Canada and race toward New England Wed to Thurs. Relatively strong model agreement and consistency with this feature leads to a relatively high confidence that arctic air will be driven into Se Mi Tues night and Wed morning. The progressive nature of this system will make this arctic air intrusion brief as rebounding mid level heights and a rapid warming trend will already take hold by Thurs and Fri.

MARINE .

Troughing over the lakes today with the center of a low pressure system lifting across the northeastern US is leading to northwest flow across the central Great Lake today into tonight. Tightening pressure gradient into tonight along with the arrival of colder air over the lakes will bring a set up capable of marginal gale force winds across the northern half of Lake Huron. A Gale Warning is in effect for these winds starting tonight and lasting into tomorrow morning. Small Craft Advisory conditions will also be met for northern portions of the Thumb as wave action increases tonight and last into tomorrow afternoon. Winds begin easing up tomorrow afternoon as the low lifts well to the northeast. Winds remain light across the lakes on Monday into while a low pressure system moves across the Ohio River Valley bringing snow showers to the southern lakes. More impactful surge of arctic air with a low pressure system comes late Tuesday into Wednesday.

DTX WATCHES/WARNINGS/ADVISORIES. MI . NONE. Lake Huron . Small Craft Advisory from midnight tonight to 5 PM EST Sunday for LHZ421-441-442.

Gale Warning from midnight tonight to noon EST Sunday for LHZ361>363.

Lake St Clair . NONE. Michigan waters of Lake Erie . NONE.

AVIATION . MR DISCUSSION . SC MARINE . AA

You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLSM4 - St. Clair Shores, MI 13 mi60 min W 7 G 14 35°F 1003.7 hPa (+1.3)
AGCM4 35 mi66 min 36°F 40°F1002.3 hPa
THLO1 - Toledo Light No. 2 OH 39 mi60 min W 15 G 17 36°F
TWCO1 48 mi40 min WNW 15 G 19
THRO1 - 9063085 - Toledo, OH 51 mi66 min W 8.9 G 13 37°F 1004.5 hPa30°F

Wind History for Toledo, OH
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
S2
SE1
--
--
--
--
N2
NE1
S2
W1
NW4
NW3
NW4
NW6
G9
NW4
W5
NW6
NW8
G12
NW10
G16
W8
W7
G11
W6
G11
W10
G14
W7
G12
1 day
ago
S10
G13
S10
G14
S10
G13
S8
G11
S7
G12
S9
G13
S8
G11
S5
G9
S6
S7
G10
S7
G10
S7
G10
S6
G11
S8
G12
S6
G9
SW6
SW6
G9
SW4
G7
S4
SE5
SE5
S4
S3
S4
2 days
ago
W3
W3
W4
SW2
S4
SE2
SE2
SE4
SE4
S6
S6
G9
SE6
S9
S9
G12
S11
S10
G13
S10
G14
S10
G17
S11
G15
S11
G14
S8
G11
S11
G18
S11
G14
S12
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Coleman A Young Municipal Airport, MI5 mi67 minW 88.00 miOvercast36°F28°F76%1003.8 hPa
Troy, Oakland/Troy Airport, MI12 mi65 minW 11 G 147.00 miOvercast35°F32°F89%1003.7 hPa
Detroit, Detroit Metropolitan Wayne County Airport, MI16 mi67 minW 104.00 miOvercast with Haze36°F30°F79%1004.2 hPa
Detroit/Grosse Ile, Grosse Ile Airport, MI20 mi65 minWNW 77.00 miOvercast36°F31°F84%1003.4 hPa
Selfridge Air National Guard Base, MI22 mi2.1 hrsW 117.00 miOvercast37°F35°F94%1002.7 hPa

Link to 5 minute data for KDET

Wind History from DET (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrSE3CalmCalmCalmCalmCalmCalmN3CalmN4CalmCalmNW3N4N4N5NW6NW9NW8W9NW10W7W6W8
1 day agoS10S9S8S7S5S7S6S4S5S5S4S4S8S8S6S9SW5SW5SE7S8S3S3SE3S4
2 days agoW8W4W4W3SW3CalmCalmCalmCalmS3CalmS3S6S7S7S10S13
G18
S12S8
G17
S8
G21
S10
G18
S8S10
G19
S11

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of GreatLakes    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Detroit/Pontiac, MI (20,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Detroit, MI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.