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Marine Weather and Tides
Version 3.4 |
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 6:49AM | Sunset 8:22PM | Saturday August 24, 2019 8:13 PM EDT (00:13 UTC) | Moonrise 12:00AM | Moonset 2:36PM | Illumination 30% |  |
LEZ162 Lake Erie Open Waters From Maumee Bay To Reno Beach Oh- 358 Pm Edt Sat Aug 24 2019
Tonight..East winds 10 to 15 knots. Waves 1 to 3 feet.
Sunday..Southeast winds 10 to 15 knots becoming east 15 to 20 knots. Waves 2 to 3 feet.
Sunday night..East winds 15 to 20 knots becoming southeast. Waves 2 to 4 feet.
Monday..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of showers in the afternoon. Waves 2 to 4 feet.
Monday night..Southeast winds 10 to 15 knots becoming south. Showers likely. Waves 2 to 3 feet.
Tuesday..South winds 10 to 15 knots becoming west. Showers likely with a chance of Thunderstorms during the day, then a chance of showers and Thunderstorms Tuesday night. Waves 1 to 3 feet.
Wednesday..West winds 10 to 15 knots. Waves 1 to 2 feet.
Thursday..West winds around 10 knots. Waves around 1 foot. Winds and waves higher in and near Thunderstorms.
Tonight..East winds 10 to 15 knots. Waves 1 to 3 feet.
Sunday..Southeast winds 10 to 15 knots becoming east 15 to 20 knots. Waves 2 to 3 feet.
Sunday night..East winds 15 to 20 knots becoming southeast. Waves 2 to 4 feet.
Monday..Southeast winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of showers in the afternoon. Waves 2 to 4 feet.
Monday night..Southeast winds 10 to 15 knots becoming south. Showers likely. Waves 2 to 3 feet.
Tuesday..South winds 10 to 15 knots becoming west. Showers likely with a chance of Thunderstorms during the day, then a chance of showers and Thunderstorms Tuesday night. Waves 1 to 3 feet.
Wednesday..West winds 10 to 15 knots. Waves 1 to 2 feet.
Thursday..West winds around 10 knots. Waves around 1 foot. Winds and waves higher in and near Thunderstorms.
LEZ162 Expires:201908250215;;149141
FZUS61 KCLE 241958
GLFLE
Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
358 PM EDT Sat Aug 24 2019
For waters beyond five nautical miles of shore on Lake Erie
Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.SYNOPSIS...High pressure 30.40 inches from the northern lakes to
western Quebec will continue to move east across Quebec reaching
the Canadian Maritimes by Sunday afternoon. The high will weaken
and drop south into New England Monday and Tuesday as a cold front
moves out of the Central and Northern Plains into the Great Lakes
Region. The cold front will cross Lake Erie Tuesday. High
pressure 30.00 inches will build in from the southwest Wednesday
and Thursday.
LEZ162-250215-
7 Day Forecast for Marine Location Near Detroit Beach, MI
Hourly EDIT Helplocation: 41.83, -83.25 debug
Area Discussion for - Detroit/Pontiac, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kdtx 242252 afddtx area forecast discussion national weather service detroit pontiac mi 652 pm edt Sat aug 24 2019 Aviation Surface high pressure building northeast of the area will maintain vfr conditions with diurnal CU fading this evening and re-developing to some degree by midday Sunday. Northeast flow will begin to veer to southeast with time on Sunday as the center of high pressure continues east into quebec and return flow around its western periphery begins. Dtw threshold probabilities * none. Prev discussion Issued at 317 pm edt Sat aug 24 2019 discussion... expansive high pressure (centered over northeast ontario at 1030 mb) will continue to dominate the weather through the weekend over the central great lakes region. 12z dtx showed a stout low level subsidence inversion just under 5000 kft. With the moisture flux off the warm waters of lake huron, a good deal of flat CU developed, but is in the process of mixing out. Tomorrow, lake erie will come more into play as the low level winds back around to the southeast. Airmass modification should be able to support highs in the upper 70s near 80 degrees, as regional gem indicates 850 mb temps reaching around 12 c. Upper level energy shortwave over the central plains will lift into the western great lakes Sunday. This will help begin to break down the upper level ridge in place, as strong pacific wave jet leads to digging trough over the northern plains, with a healthy 500 mb height fall center (-70 m) reaching lake superior by Tuesday morning. Increasing strengthening southwest flow on Monday will transport a good deal of moisture into southern lower michigan, as pw values approach 2 inches. Airmass looks to become weakly unstable, as showalter index lowers AOB zero Monday night, with weak mid level lapse rate (under 6 c km). Moisture advection isentropic assent will support a good chance of showers, but bulk of the heavier shower thunderstorm activity may hold until Tuesday with the actual cold front 850 theta-e ridge, with potential diurnal surface based instability boost. Upper-level trough axis and embedded PV anomalies to travel across michigan Wednesday morning into the afternoon, but despite adequate forcing, post-frontal cool and dry canadian air will significantly limit any precipitation chances for the day. Increase in mechanical mixing tied to CAA will tap into stronger winds aloft (35-40 knots up to h850 per gfs) and will allow for gusty conditions at the |
surface around 25-30 mph during daylight hours. ECMWF 12z run a little less aggressive with LLJ with wind speeds at 25 - 30 knots at h850, so still room to tweak potential wind gusts leading into the midweek period. Surface high pressure to build in across the tennessee valley Wednesday into Thursday with the northern periphery of high pressure extending into the ohio valley and great lakes. Mid-level flow to stay zonal through the midweek period which will bring little change to temperatures and will keep pops low. Expect daytime highs to hold in the 70s with lows in the 50s during the midweek with a mix of clouds and sunshine (clouds will develop in afternoon with diurnal response). The next chance for rain and possibly thunderstorms will then enter Friday into Saturday, however, will hold pops at only a slight chance as too much divergence is noted between long range model runs. The ECMWF and GFS have a slow moving low pressure system over manitoba or western ontario that eventually is pushed eastward which in turn would drag a cold front across SE mi. However, models diverge regarding evolution, track, and timing of low pressure. The canadian is dry altogether as the low pressure system remains north of ontario. Marine... high pressure translating across the great lakes this weekend will bring quiet conditions with relatively light winds and low waves. North winds will prevail today before turning to the southeast tomorrow as the high pressure departs to the east. Winds expected to stay primarily below 15 knots during this time. Winds remain out of the southeast on Monday while increasing into the 15 to 20 knot range with gusts of 25-30 knots possible. The winds will be increasing in response to increasing pressure gradient ahead of an approaching front and low pressure system. This system will bring the next chance for showers and thunderstorms during the later half of Monday into Tuesday. Dtx watches warnings advisories Mi... None. Lake huron... None. Lake st clair... None. Michigan waters of lake erie... None. Aviation... ..Dg discussion... Sf am marine... ... .Aa you can obtain your latest national weather service forecasts online at |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| THLO1 - Toledo Light No. 2 OH | 3 mi | 54 min | ENE 17 G 19 | 70°F | ||||
| 45165 | 9 mi | 44 min | ENE 14 G 18 | 69°F | 75°F | 2 ft | 54°F | |
| TWCO1 | 9 mi | 44 min | E 17 G 22 | 75°F | ||||
| THRO1 - 9063085 - Toledo, OH | 15 mi | 62 min | ENE 11 G 18 | 69°F | 1024.1 hPa | 53°F | ||
| SBIO1 - South Bass Island, OH | 26 mi | 74 min | ENE 8 G 12 | 69°F | 1023.8 hPa (-0.5) | |||
| MRHO1 - 9063079 - Marblehead, OH | 34 mi | 62 min | NE 11 G 14 | 70°F | 76°F | 1023.4 hPa | 55°F | |
| 45005 - W ERIE 28NM Northwest of Cleveland, OH | 46 mi | 44 min | ENE 16 G 19 | 70°F | 1024.2 hPa | 56°F | ||
| HHLO1 - Huron Light, OH | 48 mi | 74 min | ENE 16 G 19 | 70°F | 1022.4 hPa (-0.3) | |||
| CLSM4 - St. Clair Shores, MI | 49 mi | 74 min | NNE 2.9 G 6 | 70°F | 1024.7 hPa (-0.7) |
Wind History for Toledo, OH
(wind in knots) EDIT (on/off) Help| 8 PM | 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 | |
| Last 24hr | E G10 | NE G12 | NE G14 | NE G11 | NE G16 | N G11 | NW G7 | NW G9 | N G7 | NW | NW G6 | N G7 | N G8 | N G10 | NE G13 | NE G17 | NE G14 | NE G15 | E G16 | NE G12 | NE G13 | NE G13 | E G13 | E G16 |
| 1 day ago | E | E | NE G8 | NE G10 | E G11 | NE G9 | NE G10 | NE | NE G8 | N G7 | N G6 | N G7 | N G7 | N | NE G5 | NE G10 | NE | E G11 | NE G9 | E G9 | NE G11 | E G5 | E G9 | NE |
| 2 days ago | W G11 | W G6 | NW | NW G8 | NW | SW G11 | W | W | -- | NW | N G6 | NE G13 | NE G11 | NE G15 | E G13 | NE | NE G11 | NE G11 | NE | NE G10 | E | E | E G6 | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Monroe, Custer Airport, MI | 12 mi | 38 min | ENE 4 | 10.00 mi | Mostly Cloudy | 68°F | 49°F | 52% | 1024 hPa |
| Detroit/Grosse Ile, Grosse Ile Airport, MI | 19 mi | 59 min | E 6 | 10.00 mi | Partly Cloudy | 69°F | 52°F | 57% | 1024.4 hPa |
| Toledo - Toledo Executive Airport, OH | 22 mi | 81 min | ENE 11 G 15 | 10.00 mi | Fair | 70°F | 50°F | 49% | 1024.2 hPa |
| Lambertville, Toledo Suburban Airport, MI | 23 mi | 39 min | E 4 | 10.00 mi | Fair | 70°F | 51°F | 52% | 1024 hPa |
Link to 5 minute data for KTTF
Wind History from TTF (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 24hr | NE | NE | NE | N | N | N | Calm | Calm | N | N | N | N | N | NE | NE | NE G14 | E | E | E G14 | E | E | Calm | E | E |
| 1 day ago | Calm | N | NE | NE | NE | Calm | NE | Calm | Calm | N | N | N | Calm | N | N | N | N | N | N | N | NE | N | Calm | NE |
| 2 days ago | W | Calm | W | NW | NW | NW | N | N | Calm | N | Calm | N | N | NE | NE | NE | NE | Calm | Calm | Calm | Calm | SE | SE | Calm |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map
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.
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
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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. |