Sunday, December8, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Port Hope, 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 7:45AMSunset 4:45PM Sunday December 8, 2019 1:02 AM EST (06:02 UTC) Moonrise 3:07PMMoonset 3:51AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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
LHZ363 Expires:201912080915;;016923 Fzus63 Kdtx 080254 Glflh Open Lake Forecast For Lake Huron National Weather Service Detroit/pontiac Mi 954 Pm Est Sat Dec 7 2019 For Waters Beyond Five Nautical Miles Off Shore On Lake Huron 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..Low pressure, 29.60 inches, and a cold front approach western lake superior tonight. Southwest wind ahead of the front is forecast to reach gale force across central lake huron late tonight into Sunday afternoon. The front moves over the lake by Sunday night and stalls as a second low pressure center moves along it on Monday at 29.50 inches. The low exits the region Monday night with colder northwest wind to follow through mid week. Lhz362-363-080915- lake huron from presque isle light to sturgeon point mi beyond 5nm off shore- lake huron from sturgeon point to alabaster mi beyond 5nm off shore- 954 pm est Sat dec 7 2019
.gale warning in effect from 4 am est Sunday through Sunday afternoon...
Rest of tonight..South winds 20 to 25 knots increasing to 30 knots early in the morning. Gusts to 35 knot gales. Waves 6 to 9 feet building to 10 to 14 feet early in the morning. Waves occasionally around 18 feet.
Sunday..South winds to 30 knots with gusts to 40 knot gales becoming southwest 15 to 20 knots with gusts to around 30 knots. Waves 10 to 14 feet. Waves occasionally around 18 feet.
Sunday night..Southwest winds 15 to 20 knots decreasing to 5 to 10 knots. Showers likely after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Monday..South winds 5 to 10 knots backing to the east in the late morning and early afternoon...then increasing to 10 to 15 knots early in the afternoon. Rain. Waves 1 to 3 feet.
Monday night..Southeast winds 5 to 10 knots becoming northwest 15 to 20 knots after midnight. Rain and snow in the evening... Then a chance of snow and rain after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight.
Tuesday..West winds 15 to 20 knots. A chance of snow in the morning...then snow showers likely. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Wednesday..West winds 15 to 20 knots increasing to 20 to 25 knots with gusts to around 30 knots until early evening...then decreasing to 15 to 20 knots in the late evening and early morning. Snow showers likely...then a chance of snow in the late evening and early morning. Waves 6 to 9 feet. Waves occasionally around 12 feet.
Thursday..West winds 15 to 20 knots decreasing to 10 to 15 knots in the late morning and early afternoon...then becoming southwest 15 to 20 knots until early morning. Waves 4 to 6 feet. Waves occasionally around 8 feet.
LHZ363


7 Day Forecast for Marine Location Near Port Hope, MI
   Hourly   EDIT   Help
location: 44.5, -82.34     debug


Area Discussion for - Detroit/Pontiac, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KDTX 080543 AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 1243 AM EST Sun Dec 8 2019

AVIATION.

Mainly cirrus overhead tonight. A narrow ribbon of mid-level cloud cover continues to ebb and flow along a MKG to DTW line - but should be transient. Southerly winds will persist through the night and increase in speed around daybreak. Significant southwest flow aloft will mix down during the late morning and early afternoon hours on Sunday - bringing gusts into the 25 knot neighborhood. Winds increase steadily through the column - so will not introduce low-level wind shear in the terminals.

Advancing low-level moisture over progressively cooler ground will likely encourage MVFR stratus development upstream, which will overspread Southeast Michigan during the midday hours. The ceiling height will likely settle below 1kft after sunset Sunday. Meanwhile, a weak frontal boundary will settle southeast across the region - introducing scattered showers.

DTW THRESHOLD PROBABILITIES .

* High confidence in cigs aob 5000 feet after 16z Sunday.

PREV DISCUSSION. Issued at 330 PM EST Sat Dec 7 2019

DISCUSSION .

Mid clouds from the exiting weak shortwave today will continue to exit as well, but there will be plenty of cirrus overnight. That along with strengthening southerly flow will keep temperatures mostly in the upper 20s for lows which will probably be a few degrees warmer than MOS guidance.

Good surge of low level moisture will bring overcast stratus to much of the area through the morning. That surge of low level moisture is on a 40-50 kt 850 jet which will bring gusty southerly winds that should get as high as 30 mph. Very little forcing during the day on Sunday so plan to leave it dry during the daytime hours.

By Sunday evening, the forcing starts to increase reaching a peak after 06z Monday morning through about 15-18z Monday. All of the traditional features are in place but none of them are anything more than moderate in strength. There is some jet contribution from the upper divergence from the right entrance of the eastern Canadian jet and the left exit region of the jet over the central U.S. There is decent deep Fgen, deformation, isentropic lift and theta-e advection. Outside of the peak window after 06z to 18z, these features are still there but just a little weaker which will lead to increasing rain showers Sunday evening, then numerous rain showers and areas of drizzle for Monday afternoon and evening.

Will be leaning toward the warmer guidance over the next two days. NAM MET MOS exhibiting its usual cool bias compare to other MOS and raw output from other models. Cold air starts to move into southeast MI Monday night so that snow will mix with any left over rain showers late Monday night and early Tuesday morning. Then temperatures will be steady or slowly fall Tuesday as the cold air continues to move into the region.

With a couple of embedded shortwaves waves Tuesday, Tuesday night and Wednesday in all of the models and Low level flow will be westerly with Lake Michigan open for lake effect clouds and snow showers. Will raise pops to a general chance pop for these two days given the uncertain timing of those shortwaves. The dry air and low inversion will probably limit those lake effect snow showers.

Then Thursday and Friday will be dry with moderate temperatures. Next system after that affects the area on Saturday and with a warmer air mass, will have a chance of rain and snow.

MARINE .

High pressure over the eastern Great Lakes will drift to New England tonight as low pressure forms along a cold front draped across western Lake Superior. This will strengthen the southwesterly gradient over the region. Warm advection in advance of the low will ramp up tonight with a 50+ kt low level jet moving in by Sunday morning. While a stable temperature profile over the lakes will prevent much of this energy from reaching the surface, gusts are still likely to reach gale force over central and northern Lake Huron where southwesterly fetch is maximized, with the highest winds forecast between 4am and 4pm on Sunday. A Gale Warning has been issued for this area, while Small Craft Advisories are in effect across Saginaw Bay and the Lake Huron nearshore waters for increased wave activity.

The cold front moves over Lake Huron by Sunday night and becomes nearly stationary as low pressure develops over the central Plains. This low will track northeast into the central Great Lakes on Monday, bringing widespread rain. Snow showers become more likely late Monday night as the low departs and ushers in a much colder air mass. Winds look to remain below gales at this time, but expect a fresh northwest wind and increased wave action, especially over the open waters of Lake Huron, on Tuesday.

HYDROLOGY .

There is an extended period of rainfall that will start Sunday evening and continue through Monday. Increased moisture transport will bring PWAT values nearing 0.8 inches into southeast Michigan as a low pressure system moves across Michigan. Local probability guidance suggest rainfall totals will approach a half inch. Higher totals will be possible if any training of heavier rainfall occurs over any location, but only a very small chance to exceed an inch. A transition to wintry mix will be possible if any precipitation lingers lingers long enough after the system passes off to the northeast late Monday night and Tuesday morning. Rainfall may lead to ponding of water in low-lying areas and small rises on area rivers.

DTX WATCHES/WARNINGS/ADVISORIES. MI . NONE. Lake Huron . Small Craft Advisory from 4 AM early this morning to 4 PM EST this afternoon for LHZ421-422-441>443.

Gale Warning from 4 AM early this morning to 4 PM EST this afternoon for LHZ362-363.

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

AVIATION . Mann DISCUSSION . RBP MARINE . TF HYDROLOGY . RBP

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
KP58 41 mi11 min 6 30°F 1023 hPa22°F
HRBM4 - 9075014 - Harbor Beach, MI 48 mi44 min S 12 G 15 29°F 34°F1023.2 hPa24°F
TAWM4 - Tawas City, MI 61 mi22 min S 15 G 20 33°F 1021.3 hPa

Wind History for Harbor Beach, MI
(wind in knots)    EDIT      (on/off)   Help
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
9
PM
10
PM
11
PM
12
AM
Last
24hr
NW9
G12
NW6
G10
NW4
NW4
NW5
G8
NW4
G7
NW5
SW3
SW4
SW6
G9
SW8
G11
SW9
SW9
G12
S7
G10
S6
G9
S6
G9
S6
S9
S9
G12
S10
G14
S10
S8
G11
S10
S11
G14
1 day
ago
S9
S8
G11
S6
S6
SW1
W3
NW9
G13
N21
N16
N19
G23
N16
G22
NW7
G10
NW13
G17
NW11
G18
NW11
G16
NW13
G18
W9
G20
NW12
G17
NW7
G12
NW9
G14
NW9
G15
NW11
G15
NW7
G11
NW7
G10
2 days
ago
NW8
G13
NW13
G20
NW15
G23
NW11
G17
NW10
G17
NW10
G17
NW12
G16
NW11
G16
NW9
G12
NW7
G12
W7
W5
SW4
SW2
G5
SW3
S4
S4
S6
S4
S6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Port Hope, MI41 mi71 minS 8 mi29°F19°F69%1023.6 hPa

Link to 5 minute data for KP58

Wind History from P58 (wind in knots)
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
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrNW9NW8NW5W9W4--SW3CalmSW3--SW5SW644S4S4S5S4S6S6S75S86
1 day agoSE6SE6SE5CalmNW4N16N17N13N12N8NW10
G17
NW12
G19
NW16
G21
NW16
G21
NW11
G19
NW15
G24
NW15
G25
NW14
G23
NW11
G21
NW14
G22
NW13
G20
NW10NW12NW11
G17
2 days agoW7NW19
G27
NW14
G22
NW16W14
G23
NW13
G24
NW12
G19
NW17
G25
NW16
G25
NW14
G22
NW14
G21
NW14
G20
NW10W7W5SW3SW3CalmS3S3S4S3S4SE7

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 (1,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Gaylord, 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.