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Archives December 2006

Night of 30/31 December - The view of the crater was clear for most of the night, with only the occasional low cloud sweeping through the crater and briefly obscuring the view. Both active hotspots were visible throughout the night.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 409kB)

Night of 29/30 December - The clouds lifted around 20:00 and the growing moon partly illuminated the crater. The hotspot on the lower right flank of the lavadome was fairly consistent in brightness during the night, whereas the hotspot on the top of the lavadome became brighter and more active as the night progressed.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 339kB)

Night of 28/29 December - It was a clear night with good views of the crater - the same two hotspots were active for most of the night. Although there were no major outbursts of activity.
NB. The locations of the hotspots against the background image appear to be correct and not a result of the camera being moved as I suggested yesterday.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 332kB)

Night of 27/28 December - The clouds lifted at midnight and the view of the crater revealed two hotspots on the lavadome, which were intermittently visible until sunrise.
Note: that it appears that the webcam (Volcanocam) may have been moved in the last few weeks (or more?) and the location of the hotspots on the stacked images may not be accurate. I am going back over the daytime images to try and match the views and correct the problem if there is one.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between midnight and sunrise are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 165kB)

Night of 25/26 December - Two hotspots were visible on the lavadome  between sunset and 21:00 last night - after that clouds obscured all views of the crater.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between sunset and 21:00 are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 115kB)

Night of 23/24 December - The two hotspots on the lavadome which have been visible for the last few days, were active for most of last night, growing in brightness as the night progressed. There was also a large bright spot on the images above and to the left of the crater at 18:47, which was most likely a glitch in the system, but as you can see was quite a large bright spot on the images unlike most noise that I have seen - (e.g. see copies of the images at my Daz Dayz blog).
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 309kB)

Night of 22/23 December - There were two active hotspots on the lavadome from sunset until around 22:00 last night - after that the view was obscured by clouds and there was no further visible activity.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between sunset and 22:00 are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 131kB)

Night of 19/20 December - The view of the crater was clear last night and a hotspot was faintly visible for much of the night to the lower right of the lavadome.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between sunset and 01:00 are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 175kB)

Night of 18/19 December - The view of Mount St Helens was clear all night and the two hotspots on the lavadome were active intermittently through the night. There was a small, but bright, outburst from the top of the lavadome just after 04:00 this morning.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 305kB)

Night of 17/18 December - The view from the Volcanocam shows a strong steam plume rising from the crater at sunrise. There was a larger tremor at 22:10 last night (e.g. see SWFL webicorder). There were two hotspots visible throughout last night, indicative of hotter material being exposed to the surface. the two locations were near the top and to the bottom right of the lavadome.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 300kB)

Night of 16/17 December - The view of the crater was clear throughout the night and there were a couple of active hotspots on last night's images. A hotspot on the lower right flank of the lavadome was very faint, but active for much of the night. A hotspot at the top of the lavadome only became active later in the night and was quite bright by sunrise.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 292kB)

Night of 15/16 December - There was a M3.7 tremor recorded beneath the crater of Mount St Helens at 21:38 last night, which is one of the larger tremors we have seen during the present eruption. One small hotspot was visible at the top of the lavadome intermittently from midnight until before sunrise.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between midnight and sunrise are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 119kB)

Night of 09/10 December - There was a M3.2 tremor recorded in the crater at 17:55 yesterday afternoon, but there was no associated visible activity from the lavadome. Two small hotspots were visible in the processed images from around 20:00 until just after 21:00 - one at the top and one at the bottom right hand side of the lavadome. Soon after that the view was obscured by clouds.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second) only the images between sunset and 21:20 are included.
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 119kB)

Night of 08/09 December - The view of the crater was relatively clear last night, and a hotspot was visible for most of the night on the lower right hand side of the lavadome.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 276kB)

Night of 06/07 December - The moon once again illuminated the crater, but higher clouds intermittently passed overhead, meaning that the level of illumination varied considerably during the night. There was one small hotspot active on the lower right hand side of the growing lavadome. It's just visible in the animated images :-)
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 460kB)

Night of 04/05 December - The full moon brightly illuminated the crater once the clouds parted just after 23:00. The hotspot on the top of the lavadome was active for most of the night.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 318kB)

Night of 03/04 December - The illumination from the moon lit up the snow covered crater for a large part of the night. There was also a fairly vigorous steam plume rising from the lavadome - so it is a little difficult to distinguish the active hotspots from the processed images. The hotspot at the top of the lavadome was active for part of the night, and there may have been some activity on the lower right hand side as well.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 613kB)

Night of 02/03 December - The near-to-full moon illuminated the crater for most of the night and revealed some activity in the crater. There was some residual mist/clouds and a small plume of steam rising from the crater which obscured the view of the lavadome on occasions, but the hotspot on the top of the lavadome was visible part way through the night.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 570kB)

Night of 01/02 December - The clouds parted just after sunset and apart from some swirling mist in the crater, we had a fairly clear view of the lavadome for most of the night. There was one hotspot at the top of the lavadome which was active for almost the entire night.
The animation below shows the processed images of the mountain which have been enhanced to maximise the brightness of the glow and  superimposed over a daytime image of the crater for reference. The animation speed is set at 6 fps (equivalent of half an hour in real time per second).
Flash movie - enhanced images of the glow, superimposed on a background image of the mountain - only the area around the crater is animated (size 453kB)