Great Lakes Ice Cover – Color
Great Lakes Ice Cover – Gray-scale
Historical Annual Maximum Ice Coverage 1973 – 2015
Air Temperature
1 Day Average North America Temperature Animation
Water Temperature
Cloud Cover
Wind
Waves
Lake Michigan
Ice Concentration
Current Year Ice Cover
Historical Annual Maximum Ice Coverage
Ice Thickness
Ice Velocity
Vessel Icing
Waves
Lake Superior
Ice Concentration
Current Year Ice Cover
Historical Annual Maximum Ice Coverage
Ice Thickness
Ice Velocity
Vessel Icing
Waves
Lake Erie
Ice Concentration
Current Year Ice Cover
Historical Annual Maximum Ice Coverage
Ice Thickness
Ice Velocity
Vessel Icing
Waves
Lake Ontario
Ice Concentration
Current Year Ice Cover
Historical Annual Maximum Ice Coverage
Ice Thickness
Ice Velocity
Vessel Icing
Waves
Lake Huron
Ice Concentration
Current Year Ice Cover
Historical Annual Maximum Ice Coverage
Ice Thickness
Ice Velocity
Vessel Icing
Waves
Source Guide:
Coolwx.com – Robert Hart, PhD
Home Page – http://www.coolwx.com?bandwidth=high/
NOAA Great Lakes Surface Environment Analysis (GLSEA)
Home Page – http://www.glerl.noaa.gov/
Products Page – http://www.glerl.noaa.gov/res/glcfs/
Ice Cover Page – http://www.glerl.noaa.gov/data/pgs/ice.html
Additional Resources:
Canadian Ice Service
Home Page – http://iceweb1.cis.ec.gc.ca/
Product Search – http://iceweb1.cis.ec.gc.ca/Prod20/page1.xhtml?lang=en&grp=Guest
Ice Cover Graphs – http://iceweb1.cis.ec.gc.ca/Prod20/page2.xhtml?subID=2014&grp=&lang=en
WUWT, perfect! Just when I was wanting to know what the Great Lakes were doing. Voilà here you are with a ‘Great Lakes Ice Page…..
Cool!
Would there be any way to get ice-breaker information – showing the paths made through the ice.
noaaprogrammer says: March 6, 2014 at 8:38 pm
Would there be any way to get ice-breaker information – showing the paths made through the ice.
Yes, I covered in some depth here:
http://wattsupwiththat.com/2014/02/17/anthropogenic-influences-on-lake-ice-coverage-ice-breakers-waste-heat-dams-etc/
Per this comment:
http://wattsupwiththat.com/2014/02/17/anthropogenic-influences-on-lake-ice-coverage-ice-breakers-waste-heat-dams-etc/#comment-1570824
“Two scientists from NASA and NOAA have developed a new space-based technique for monitoring the ice cover of the Great Lakes that is so accurate it can identify a narrow channel of open water cut through the ice by an icebreaker — even at night.”
“The new method, co-developed by Nghiem and his colleague George Leshkevich of NOAA’s Great Lakes Environmental Research Laboratory, Ann Arbor, Mich., not only corrects that problem, it also gives a more accurate analysis of ice characteristics, such as whether the ice is dense or full of bubbles, and whether it has melted and refrozen.”
http://climate.nasa.gov/news/998
However, I have not yet come across real-time imagery based upon Nghiem and Leshkevich’s method, which was introduced in October, 2013:
http://www.iaglr.org/jglr/release/39/2013.05.003_leshkevich.php
Until then, this site shows the locations of the large ships currently on the Great Lakes:
http://ais.boatnerd.com/
If you uncheck the buttons on the right you can see just the Coast Guard Ice Breaker locations.
All are reminded that the Great Lakes, and the other fresh water inland lakes like Russia’s Baikal, are NOT included in the NSIDC’s Sea Ice Total reports.
They have also told me that the Antarctic’s permanent ice shelves around that continent are NOT included in the southern sea ice extents either.
Is it known whether there have been any changes in the ice extent assessment procedure over time? Both Lake Superior and Lake Erie, which freeze over the most often, push up against 100% repeatedly before 2000, but only reach a maximum extent of ~95% after that. Given that they have now been sitting at that extent for a good while this year, while the other lakes have continued to build ice, one wonders if there has been some change in the scoring system at around 2000.
That’s when they needed to “fix” things…
The historical trend of lake temperature would be a good reference, to see if the lakes are approaching ice-up faster or slower than previous years, or when they hit their summer peak is it warmer or colder than previous years. They have one for each lake, 5 years of temperatures in one plot, here is Lake Michigans.
http://coastwatch.glerl.noaa.gov/statistic/avg-sst.php?lk=m&yr=0
@ Michael Palmer
I don’t think the lack of 100% ice cover is due to a change in measurement procedure. Most likely it is due to polynyas or similar phenomenon keeping small areas of water open. Unless we get an extended period of no wind with continued low temperatures it is unlikely that the lakes will achieve 100% ice coverage. In places where there is a continuous offshore wind, the wind will push ice away from the shoreline leaving small patches of open water. Between the wind and water currents moving the ice around you will almost always end up with some open areas of water, even when the temperature is cold enough to freeze things very quickly.
The icing over of the Great Lakes is having wide-spread repercussions in the Jewish community this Passover!!
The Canadian ice service has an interesting plot of how late the ice is hanging on this year on the great lakes. The plots only go back to 80/81 so not a long record but this year may not have had the peak ice level but clearly it has had the highest average and longest lasting ice levels.
http://ice-glaces.ec.gc.ca/prods/CVCHDCTGL/20140428180000_CVCHDCTGL_0007639788.pdf
as well as how high the average amount of ice has been.
http://ice-glaces.ec.gc.ca/prods/CVCHACTGL/20140428180000_CVCHACTGL_0007639790.pdf
and last the comparison to normal ice levels.
http://ice-glaces.ec.gc.ca/prods/CVCSWCTGL/20140428180000_CVCSWCTGL_0007639786.pdf
http://www.fortmilltimes.com/2014/04/26/3440671/lake-superior-ice-causes-shipping.html
Lake Superior ice causes shipping delays
The Associated Press
April 26, 2014
DULUTH, MINN. — Thick ice on Lake Superior is causing shipping delays, with about 60 ships waiting to enter the area, according to the Coast Guard.
The ships are “certainly not delivering the raw material at the frequency that the facilities need,” said Mark Gill, director of vessel traffic services for the Coast Guard at the Soo Locks between Lakes Superior and the lower lakes. “That’s put a drain universally on steel production, power production, grain shipments, and many other industries that suffer as a result of that.”
Lake Superior is still about 60 percent ice covered, Gill told Minnesota Public Radio News (http://bit.ly/1mK972v). Three heavy ice breakers are escorting convoys of five ships across the lake, where wind-blown ice is still 8 feet thick in places.
The season’s first trip from Duluth to lower Lake Michigan took two weeks. It normally takes less than three days. Some steel mills and power plants around the Great Lakes have run low on supplies of iron ore and coal.
Gill hopes convoys will only be needed for another week to 10 days.
A ship built for the ocean, coming from Brazil, was no match for icy Lake Superior this week. And so it was for the Diana, the celebrated first saltie in Duluth for the season that was rudely welcomed late Wednesday by ice — just outside of the shipping canal — that rendered it stuck twice.
http://www.rivertowns.net/content/first-saltie-needs-help-through-ice-0
Does anyone know the latest date in any year in the past, that Lake Superior still contained ice?
I saw pics of ice floating, in July, last year…
Lake Superior still has considerable ice as of this Memorial Day, this article has some great pictures!
http://www.weather.com/news/lake-superior-ice-memorial-day-weekend-2014-20140526
It’s June 5, 2014, and there is still ice on Lake Superior!
http://www.livingstondaily.com/article/20140604/NEWS01/140604003/Michigan-s-endless-summer-Yes-there-s-still-ice-Lake-Superior
Lake Superior FINALLY ice-free as of June 12, 2014!!
http://www.jsonline.com/news/wisconsin/brrrr-ing-on-summer-ice-on-lake-superior-is-finally-gone-b99290102z1-262914301.html
The Polar Vortex just keeps on giving:
http://www.chicagotribune.com/news/local/breaking/chi-chicago-fog-thanks-to-polar-vortex-20140627,0,895457.story
It turns out that the thick ice cover and heavy snows were good for our Great Lakes!
http://www.chicagotribune.com/news/local/breaking/chi-great-lakes-welcome-rising-water-levels-20140707,0,257225.story
July 15, 2014, and Lake Michigan is still chilly!! The yellow perch and salmon are enjoying it!
http://www.chicagotribune.com/news/local/breaking/chi-brutal-winter-lives-on-in-icy-lake-water-temperatures-20140715,0,4173702.story
July 31, 2014 – Lake Michigan’s cold temps are suppressing ambient temps in Chicago this summer….
http://www.620wtmj.com/news/local/Extremely-cold-winter-leaves-Lake-Michigan-cooler-than-normal-267022661.html
Ice is already starting to form on Lake Superior.
http://abcnews.go.com/US/ice-visible-lake-superior-weeks-ahead-schedule/story?id=26939239
This graph shows how infrequently there is any Great Lakes ice at this time of year.
We have skim ice on inland lakes in Illinois, and the Great Lakes are showing record-early ice buildup.
http://www.mlive.com/weather/index.ssf/2014/11/great_lakes_ice_cover_developi.html
Although not as impressive as last winter’s Great Lake freeze-up, I see that Lake Erie now is 94% covered in ice: http://www.nbcnews.com/news/weather/frozen-over-lake-erie-94-percent-covered-ice-n308091
The Great Lakes Deep Freeze continues! http://www.chicagotribune.com/news/local/breaking/chi-great-lakes-ice-cover-20150219-story.html
Frozen lakes = cool summer.
http://bringmethenews.com/2015/03/01/great-lakes-nearly-covered-in-ice-which-could-mean-another-delayed-shipping-season/
As follow-up to another impressive ice season on the Great Lakes, I thought that this article about shipwrecks was interesting: http://www.chicagotribune.com/news/local/breaking/chi-as-ice-clears-lake-michigan-shows-off-submerged-shipwrecks-20150420-story.html
Not much exciting going on with Lake Michigan during this warm ENSO winter, but this is pretty cool, I hope the video and sound open for all viewers!
Historical Annual Maximum Ice Coverage now includes 2015, see new link
http://www.glerl.noaa.gov/data/ice/imgs/IceCoverAvg1973_2015.jpg
Updated, thank you
http://www.chicagotribune.com/news/ct-lake-michigan-ice-coverage-20160216-htmlstory.html
Lake Michigan might look frigid and icy around the edges, but it’s nothing compared with last year. A recent cold snap increased the amount of ice on the lake, but overall the mild winter has kept the lake free of extensive coverage.
As of Tuesday, about 16 percent of Lake Michigan was covered by ice, according to the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Lab. That’s below average for the lake, normally around 27 percent.
Jia Wang, an ice climatologist at the research lab, said the reason for the low ice coverage is a combination of multiple weather phenomena impacting the Great Lakes, including El Nino.
As a result, Chicagoans could see more of the beach in the coming years, as low lake ice can cause more evaporation during the winter. The ecosystem and shipping industry also could see effects.
Chicago Tribune article about “Arctic sea smoke” over Lake Michigan:
http://www.chicagotribune.com/news/local/breaking/ct-lake-michigan-arctic-sea-smoke-htmlstory.html
The winter of 2016-2017 has not been nearly as cold as prior, the famous “ice caves” of Lake Superior are not accessible this year: http://www.chicagotribune.com/news/nationworld/midwest/ct-wisconsin-apostle-islands-ice-caves-inaccessible-20170118-story.html
Interesting article about the possibility of reduced ice cover on the Great Lakes in the future:
http://www.chicagotribune.com/news/ct-lake-michigan-ice-coverage-met-20170402-story.html
Anthony, this excellent article has some of the best footage of Great Lakes shipping that I’ve ever seen! Ice breakers, lock operation etc. https://www.nytimes.com/2018/01/18/us/great-lakes-ships.html?hp&action=click&pgtype=Homepage&clickSource=story-heading&module=second-column-region®ion=top-news&WT.nav=top-news
Mods – virtually all the pages on this site are currently on federal shut down and a lot of what was running was not being updated. Are there anyother reference sources for the great lakes that show as much detail?
Anthony, this is at best tangential to climate, but it is an interesting article about Great Lakes changing ecology and biota! http://www.chicagotribune.com/news/local/breaking/ct-met-lake-michigan-water-clarity-20180126-story.html
Interesting news about rising levels in Lake Superior, and the impacts when water is released into Lakes Michigan and Huron! (I hadn’t known that Michigan and Huron were treated as one big lake). http://www.chicagotribune.com/news/ct-met-lake-michigan-superior-water-levels-20180709-story.html