"Poof" - Chantal is gone just like that. Actually...it's still a trackable & viable tropical wave but has lost a closed circulation. So the meteorological lingo is an open wave. A combination of dry mid & upper level air & especially westerly shear has taken its toll on the system. The satellite image below still shows thunderstorms over the Southern Bahamas & near the Greater Antilles. The remnants of "Chantal" will move northwest then north & simply add fuel (tropical moisture) to an already evolving wet pattern for through the weekend. It appears that there is little chance for regeneration but while tropical storm conditions won't affect the First Coast, there will still be periods of heavy rain as numerous midday-afternoon showers & storms develop & move east/northeast all the way to the coast. Everyone will get at least some rain....most places at least an inch...& a few spots 3"+. The weekend will not be a washout but there will be periods of heavy rain & intense lightning. Radar imagery below courtesy our Jax N.W.S.
From NSIDC (National Snow Ice Data Center): "Arctic sea ice continues to track below average but remains well above the levels seen last year. The relatively slow ice loss is a reflection of the prevailing temperature and wind patterns. As of July 1, NSIDC Arctic Sea Ice News and Analysis and the Sea Ice Index have transitioned to a new 30-year baseline period, 1981 to 2010."
1. Click ** here **:
3 tabs across the top of image: Monthly..... Daily........ Blue Marble View
click on "Blue Marble view"
4 tabs across the bottom of the image: Extent, Concentration Anomalies Trends
click on Extent and Concentration for two good comparison images
2. GRAPH -- click ** here ** -- click on graph for sea ice "extent", July 07,2013 (regularly updated)
The graph shows Arctic sea ice extent as of June 30, 2013, along with daily ice extent data for five previous years.
2013 is shown in blue, 2012 in green, 2011 in orange, 2010 in pink, 2009 in navy, and 2008 in purple.
The 1981 to 2010 average is in dark gray.