Update 2010-09-22: After making a fast close pass on Newfoundland, Igor moved out into the Labrador Sea and dissipated in thar region as a post-tropical storm.

Update 2 2010-09-21: Reports from Newfoundland this morning report severe flooding in certain areas, notably the Burin Peninsula, with roads being washed out. Clarenville and Sunnyside have declared a state of emergency due to washouts and failure of water and sewer systems. Some communities are becoming isolated by road damage.

Update 2010-09-21:Hurricane Igor continues it march up the Atlantic. Igor makes a close approach to Newfoundland’s Avalon Peninsula as it passes over the Grand Banks, bringing expected high winds and heavy rain to southern NFLD. Still a category 1 hurricane, Igor is not yet prepared to give up its tropical cyclone status, though by later tonight, it is expected to become an intense extra-tropical cyclone. Igor will be a major influence in the North Atlantic for several days yet. Tropical Storm Julia dissipated overnight.

Update 2010-09-20: Hurricane Igor has now moved past Bermuda and the principal rain bands are now clear of the island. Winds will remain at tropical storm intensity buty should begin to diminish there later in the day. Igor has picked up considerable speed as it moves to the northeast, and will make s close pass to Newfoundland’s Avalon Peninsula today and tomorrow. Igor is still ranked as a category 1 storm but is expected to diminish to tropical storm status within 48 hours. Canada has issued a tropical storm warning for the Avalon region. Julia continues to hold its strength as a tropical storm as it shadows Igor across the Atlantic.

Update 2010-09-19: Hurricane Igor, currently at category 1, has weakened some and is expected to continue to weaken as it moves further north into cooler water. Bermuda is expected to take a direct hit from Igor as a category 1 storm. The large size of Igor means that Bermuda will feel low hurricane and tropical storm force winds for a considerable period. Current track information suggests that it will past close to Newfoundland as a category 1 hurricane, by mid-week, although more likely as a tropical stoirm. As an extra-tropical cyclone, Igor is expected to remain a large and powerful storm well into the Labrador Sea. TS Julia is holding steady, but presents no threat to land.

Update 2010-09-18: Karl dissipates over the mountains of Mexico, Julia begins the dissipation process and is now a tropical storm. Igor remains a very large category 2 hurricane, and is expected to strengthen to category 3 through today as it makes for pretty much a direct hit on Bermuda early Monday morning as a category 2 storm with 90 knot sustained winds. BWS is projecting Igor to remain a category 1 hurricane as it swipes past south of the Canadian Maritimes, diminishing to an intense Atlantic cyclone south of Greenland.

Update 2010-09-17: Karl makes the majors and becomes a major hurricane at category 3 overnight. Landfall is expected later today and further strengthening is anticipated prior to landfall. This will be a major storm on Mexico, due to high winds and heavy rain. Funk satellite estimates have consistently shown heavy precipitation from Karl, even as a tropical storm. Igor is holding its strength as a category 3 hurricane, and is expected to have a significant impact on Bermuda. The Bermuda weather service forecasts its arrival at the island by 3AM Monday, as a category 2 storm.Julia strengthened a bit overnight, but is expected to further weaken over the next 24 hours.

Update 3 2010-09-16: Karl has been upgraded to a category 2 hurricane. Julia continues to weaken, and Igor is presently at category 3.

Update 2 2010-09-16: Karl has been upgraded to a category 1 hurricane (>65kt winds) as it moved over into the Gulf of Mexico. the NHC advises there is potential for Karl to become a major hurricane (category 3 or greater) by Friday night. This upgrade is earlier than was previously forecast. Karl’s track has been modified to be slightly south of previous forecast. Igor remains strong, and Julia continues to weaken as it moves into cooler northerly waters.

Update 2010-09-16: Igor continues relentlessly and has strengthed some, and has apparently completed an eyewall replacement cycle with indications of deep convection indicating intensification. Track estimates still place it in the vicinity of Bermuda, with a possible trend to a more easterly track. Julia continues to weaken as it moves quickly northward over less warmer water. TS Karl is moving out into the Bay of Campeche and is expected to slow and intensify to a cat 1 hurricane by Friday night.

Update 2010-09-15: The surprise this morning is Hurricane Julia, having made an unexpected leap in intensity to a category 4 hurricane. This makes Igor and Julia only the second pair of coincident cat 4 Atlantic hurricanes in the last 100 years, Ryan Maue reports this morning in a WUWT article. Karl is expected to become a hurricane once it enters the gulf of Mexico after crossing the Yucatan Peninsula.


Aqua satellite view of spectacular Igor (Sept 13, 2010. Click on image to enlarge – warning large file):

Category 4 Hurricane Igor Sept. 13, 2010

Eye detail from image above:

Eye of Hurricane Igor, Sept 13, 2010

Youtube video of the eye in motion:

And the original source file for the youtube video (caution – this is a very large animated gif file and takes a while to load in its entirety):

http://cimss.ssec.wisc.edu/goes/blog/wp-content/uploads/2010/09/100913_g15_igor_vis_anim.gif

Covers the period 16:40 – 20:39 UTC, Sept 13, 2010

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