This is the last analysis of this 2010 storm till end of amateur observations due to Saturn's solar conjunction.

After previous fading, the storm, separated into 3 zones, brightened again as shown on A.Wesley's and C.Pellier's images on June 3rd. It then faded continuously, till being barely visible on June 28th. The very last images after that date, mostly from T.Barry, did not showed it clearly anymore.

Nonetheless due to the small inclination of the planet towards the Sun at the end of July, Cassini's ISS attempted to image lightning again on the night side on July 24th, and imaged some white features some of them looking like the familiar distorted storm shapes seen for previous storms. The confirmation that some of these images are the same storm followed by amateurs would come with the release of the calibration of these images when made public.

Overall this 2010 storm has lasted around 4/5 months, and showed regularly 3 major bright clouds with several brightness episodes, and has been nicely covered by amateur images around the globe.

Storm has been detected for 4 months (as of this analysis) till first detection beginning of March.

This third period going from end of April to end of May has seen after initial fading and elongation of the storm zone a new burst of activity (first detected on May 2nd by  A.Wesley but really bright on May 5th image from C.Go) showed by a bright single spot called here StormE"2, preceded by the white remnant.

The bright spot looked very soon separated in two equally bright parts StormE"1 and StormE"2 (see excellent resolved image from A.Wesley on May 10th), and preceded by a fainter spot StormE"3 (see images from C.Go on May 5th and May 9th), maybe formed from the previous white remnant. This might be the first time that a storm complex with 3 bright zones was imaged by amateurs.

Then over the next 15 days, the storms gradually faded and separated, even the close E"1 and E"2 which were very close but on slightly different latitudes (E"1 almost 1° southern). On May 22nd, D.Peach image for the last time before next observation on June 2nd the storm complex elongate over 38° LIII (almost 35 000 km long).

Longitudes of E''1 and E''2 are coherent with the ones of E1/E'1 and E2/E'2 observed in the previous period, showing that they could have come from the same sources even if this is not proven.

Over this period, i did not find any image of this zone on Cassini's ISS images (which targeted Saturn only on April 29th/30th), while amateurs produced a good coverage.

This second period going from end of March to end of April has seen after initial fading and elongation of the storm zone a new burst of activity (first detected on April 7th by  C.Go) showed by a bright single spot called here StormE'1.

Immediatly a second fainter zone E'2 following the bright single spot appeared, and looked to have getting closer to E'1 and gain brightness to form a double bright spot only 4 days later (see A.Wesley image on April 11th).

The spots then fainted and separated progressivly, till forming a global white elongated zone without any distinctive spot (see April 24th image by M.Delcroix).

Longitudes of E'1 and E'2 are coherent with the ones of E1 and E2 observed in the previous period, showing that they could have come from the same sources even if this is not proven.

Over this period, i did not find any image of this zone on Cassini's ISS images (Saturn was not directly targeted), while amateurs produced a good coverage.

Over this period, i did not find any image of this zone on Cassini's ISS images (Saturn was not directly targeted), while amateurs produced a good coverage.