June 2005

Night of 29/30 June - A fairly bright outburst happened just after midnight, presumably due to a rockfall from the lavadome exposing fresh hot lava to the surface. Below are two movies, the first processed to remove the noise and the second enhanced further to maximise the brightness of the glow in the images.
Flash movie - showing the glow on a background image of the mountain for reference (size 204 kB)
Flash movie - showing the enhanced images of the glow superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 382 kB)

Night of 23/24 June - A wonderfully clear night with good views of the steam plume rising from the crater and the passing clouds overhead. There weren't any major outbursts of activity, apart from possibly at 04:35 this morning, just before the glow disappeared in the morning light. The movie below was processed to remove the noise and only slightly enhanced to increase the brightness of the images.
Flash movie - showing just the glows (size 401 kB)

Night of 22/23 June - Clouds obscured the view of the crater for most of the night and only parted just before sunrise. There's not enough frames to make an animation, but here's a still image (average of 10 frames) of the view between 03:30 and 04:30 this morning. Hopefully clearer weather is on the way :-)

21/22 June - Heavy cloud obscured the view of the crater, but the two anomalous hotspots were visible (link to Daz Dayz) and there may be an explanation!

Night of 20/21 June - Another clear night with good views of the crater and a bright outburst around 01:40 this morning (most likely due to a landslide of material from the lavadome). Also the brightening in the sky in the early evening is due to the moon passing overhead, just out of the direct view of the Volcanocam. The movie below was processed to remove the noise and only slightly enhanced as the view was bright enough without much tweaking!
Flash movie - showing just the glows (size 588 kB)

Night of 19/20 June - Another clear night with a good view of the crater and the main glow from the lavadome. Between 23:00 and 00:00 you can see a brightening in the sky as the moon passes overhead, but out of view. Below are two movies, the first showing the "de-noised" image and the second with the images cropped to the area of the crater superimposed on a reference image of the mountain.
Flash movie - showing just the glows (size 289 kB)
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (only the area around the crater animated) (size 200 kB)

Night of 18/19 June -  It was a clear night and the main glow from the lavadome was visible and bright throughout the night. There was also a good view of the steam plume rising from the crater in the early part of the evening. The mystery glow on the western flank was visible, as was another glow in front of the crater! e.g. see this stacked image from last night. I have been going back over the last several months of images and it is obvious that this second anomalous glow has been visible for many months.  So it looks like these anomalous glows are probably hot pixels in the Volcanocam - although I am still a little perplexed as to how a "hot pixel" can vary in intensity (and number of pixels) so much from day-to-day and throughout a single night. After all, if a defective pixel is hot, it would be expected to stay hot all the time and if it was affecting nearby pixels, why would it vary in its effect by so much? I will post examples of the images and some animations later this week so you can make up your own minds about what is going on. The movie below shows the images of the glows at the approximate brightness as seen on the Volcanocam images after removing the noise.
Flash movie - showing the images processed to remove noise (size 429 kB)

Night of 17/18 June -  The main glow from the lavadome was bright and visible easily between 01:00 and 03:00 this morning. The movie below shows the images of the glows at the approximate brightness as seen on the Volcanocam images after removing the noise.
Flash movie - showing the images of the glow superimposed on a background image of the mountain for reference (size 205 kB)

Night of 16/17 June - The night started off cloudy, but the anomalous glow on the western flank was visible for most of the night. The main glow from the lavadome only appeared briefly, just after 03:00 this morning. As an aside, I am currently experimenting with the noisy images from the Volcanocam to see if I can re-create the effects seen in the "mystery glow,"  to determine once and for all whether this may be due to a bad pixel after all. I'll post details after I have satisfied myself one way or the other... Only one movie today, showing the enhanced images to maximise the brightness of the glow(s).
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (size 281 kB)

Night of 15/16 June - Both the glow from the lavadome and the anomalous glow on the western flank of the crater were visible throughout the night. Below are two animations generated from last nights images. The first shows the glows at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glows.
Flash movie - showing just the glows (size 168 kB)
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (size 412 kB)

Night of 13/14 June - Both the glow from the lavadome and the anomalous glow on the western flank of the crater were visible and active last night. Below are two animations generated from last nights images. The first shows the glows at the approximate brightness as recorded on the Volcanocam images, the second was enhanced further to maximise the brightness of the glows.
Flash movie - showing just the glows (size 169 kB)
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (size 202 kB)

Night of 10/11 June - Despite quite a lot of cloud cover, the mystery glow on the western flank of the mountain was active throughout the night. There was no sign of the main glow from the lavadome. Below are two movies generated from last nights images. The first shows the enhanced images superimposed on an image of Mount St Helens, the second shows the enhanced images enlarged to 1600% to see the variation in the response.
Flash movie - showing the enhanced images of the glow superimposed on a background image of the mountain for reference (size 267 kB)
Flash movie of the 'mystery' glow on the west flank of the crater, enhanced and enlarged 1600%. (size 312 kB)

Night of 09/10 June - Both of the glows were visible throughout the night. The main glow from the lavadome was visible intermittently, but there were no major outbursts of activity. The mystery glow on the western flank varied considerably in intensity during the night.  Below are three movies generated from last nights images. The first shows the glows from the mountain (only), the second was enhanced further to maximise the brightness of the glows and the third shows an enlargement of the enhanced images of the anomalous glow on the western flank of the crater.
Flash movie - showing just the glows (size 156 kB)
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (size 244 kB)
Flash movie of the 'mystery' glow on the west flank of the crater, enlarged 1600%. (size 235 kB)

Night of 08/09 June - The main glow from the lavadome was visible throughout the night and there were a couple of brief outbursts of activity. The anomalous glow on the western flank of the mountain was also visible and it varied considerably in intensity over the course of the night. Below are three movies generated from last nights images. The first shows the glows from the mountain, the second was enhanced further to maximise the brightness of the glows and the third shows an enlargement of the anomalous glow on the west flank of the crater.
Flash movie - showing just the glows (size 174 kB)
Flash movie - showing the enhanced images of the glow(s) superimposed on a background image of the mountain for reference (size 276 kB)
Flash movie of the 'mystery' glow on the west flank of the crater, enlarged 1600%. (size 244 kB)

Night of 07/08 June - The crater was partly obscured by clouds last night. However, the mystery glow on the western flank of the mountain was very active throughout the night, but there was no sign of the glow from the lavadome. Below are two movies generated from last nights images. The first shows the enhanced images superimposed on an image of Mount St Helens, the second shows the enhanced images enlarged to 1600% to see the variation in the response.
Flash movie - showing the enhanced images of the glow superimposed on a background image of the mountain for reference (size 239 kB)
Flash movie of the 'mystery' glow on the west flank of the crater, enhanced and enlarged 1600%. (size 342 kB)

Night of 06/07 June - The main glow from the lavadome was not visible last night, but the anomalous glow on the western flank of the mountain was visible intermittently throughout the night. Below are two movies generated from last nights images. The first shows the anomalous glow at the intensity as seen on the Volcanocam images, the second was enhanced further to maximise the brightness of the glow and enlarged to 1600% to see the variation in the response.
Flash movie - showing the glow superimposed on a background image of the mountain for reference (size 165 kB)
Flash movie of the 'mystery' glow on the west flank of the crater, enhanced and enlarged 1600%. (size 217 kB)