Posted on 03/24/2009 6:48:55 AM PDT by Robert A Cook PE
As first noticed by WUWT commenter Crosspatch last night, from seismic data, it appears Mt. Redoubt has erupted:
"Looking at this Redoubt webcorder it looks like an eruption of some sort might have started at around 2045UTC. Its dark there now, so we wont know until morning."
National Weather Service radar, Kenai, Alaska: capture at 02:42 Alaska local time, March 23rd 2009. Click for latest radar image.
Because the eruptions happened at night, so far we dont have any current photography. Hopefully soon. The radar image above shows the plume clearly though. Here is a 40 frame loop showing the eruptions. (h/t Tom Woods) - Anthony
Noon Update: The most recent volcanic ash advisory from Anchorage VAAC, issued at 17:25 GMT (09:25 local time) gives the plume altitude as FL600, which is 60000 feet ot 18 kilometers (h/t to The Volcansim Blog )
FoxNews: Alaskas Mt. Redoubt volcano erupted late [Sunday and early Monday] in four large explosions, sending an ash plume an estimated 9 miles into the air, the Alaska Volcano Observatory reported.
The ash cloud went to 50,000 feet, and its currently drifting toward the north, northeast, said Janet Schaefer, a geologist with the Alaska Volcano Observatory.
Geologists at the observatory say the volcano, located 100 miles southwest of Anchorage, erupted four times, from 10:30 p.m. to 1:40 a.m. local time.
This is a fairly large eruption, close to the larger cities in Alaska, Geophysicist John Power said.
The current wind patterns are taking the ash cloud away from Anchorage and instead heading toward Willow and Talkneetna, two communities near Mount McKinley, North Americas largest mountain in Denali National Park.
The ash cloud (so far) is relatively small - compared at least those very large ones of Mt Pinatubo or Mt St Helens.
Probably only a minor impact on spring and summer temperatures to the east and north. Prevailing winds are apparently from the northwest. We will likely see more as the day progresses.
More proof of global warming. The ground went from cold to molten hot in just a few seconds. Catestrophic global warming at it’s worst.
Wow. Was wondering when she was gonna blow.
Here’s a question: what is likely going to happen to the ice under the ash fall area? Will it get colder, or will the ash darken the ice and catch more heat, melting it somewhat faster?
It will melt faster, which is good, our spring breakup has been more moderate and slower than normal. When I first moved to Alaska I was amazed at how fast the weather would change, within a week or two it would go from just above zero to over 50 degree days and the accumulated snow, ice and sludge would melt in what we call “breakup” and it would usually be done with in a week or so. Breakup usually happens the last two week of April give or take a couple of weeks either way or what part of the state you look at.
The last 8 years or so it has been a more drawn out messy event.
In the immediate area?
25-50 miles downwind there will be lots of deposits. Probably (we really don’t know for sure) not too much impact further away. Even less across the whole Arctic.
best guess now is that aerosols and gasses into the stratosphere are not “too much” - but over time - if this lasts a long time - there may be some cooling impact.
O’Bama’s fault!
It’s already noted in WikiPedia...
Once again, the bloggers get the scoop.
MSM becomes more and more irrelevant.
It will be an interesting study. I’ve really no clue for either range or time scale.
However, we seem to be on the bottom end of the start of the maybe decade long cooling cycle, which to me seems to indicate that even a modest push to a little cooler, especially right now when we should be seasonally warming up, could turn this into a short summer.
God has certainly given us a magnificent planet to explore and wonder at. We will never understand all it’s mysteries or enjoy all it’s sights.
The 1989~1990 events went a little farther.
The are currently getting some Ash in Talkeetna, about 150 miles to the NNW. More ash falling to the west of Talkeetna.
A map for reference:
Massive flooding and tephra deposits filled Drift Valley, located east of Mount Redoubt.
Photo courtesy Game McGimsey, Alaska Volcano Observatory / U.S. Geological Survey
Photo courtesy Game McGimsey, Alaska Volcano Observatory / U.S. Geological Survey
Photo courtesy Cyrus Read, Alaska Volcano Observatory / U.S. Geological Survey
This photo illustration created from an overhead image of Southcentral Alaska and Mt. McKinley off the NASA Terra satellite March 23, 2009 at 9:49 p.m., shows the ash fall direction after Mount Redoubt erupted.
Photo courtesy Jonathan Dehn / Geographic Information Network of Alaska
A snowmachine trail glows like a white ribbon through the ash-covered snow in Skwentna Monday. The area received as much as a quarter of an inch of ash March 23, 2009, from the eruption of Mount Redoubt.
Photo by Bonnie Dee Childs/Skwentna Roadhouse
layer of brown-gray ash coats a tarped snowmachine in Skwentna. The area received as much as a quarter of an inch of ash March 23, 2009, from the eruption of Mount Redoubt.
Photo by Bonnie Dee Childs
Karen Timmers, right, picks up her daughter Kaila Kais, who suffers from asthma, and son Johann from Talkeetna Elementary School, in Talkeetna, Alaska on Monday, March 23, 2009 because of the ash from Mount Redoubt Volcano. Footprints in the ash are seen in the foreground.
AP
Drift River Terminal tank farm as seen from the air with Mt. Redoubt behind it. The facility is located on Cook Inlet and has been affected by lahars and sediment laden water floes following eruptions of the volcano Monday, March 23, 2009. The facility has 148,000 barrels of crude oil stored. Production has been halted. Coast Guard and the Alaska Dept. of Environmental Conservation are monitoring the site.
Alaska Volcano Observatory
Flood waters cascade through a gorge carved in the Drift Glacier below the summit of Redoubt Volcano March 23, 2009 after its recent eruption.
Game McGimsey / Alaska Volcano Observatory / U.S. Geological Survey
The Drift River Terminal is seen from the air with Mt. Redoubt behind it. The facility is located on Cook Inlet and has been affected by lahars and sediment laden water floes following eruptions of the volcano Monday, March 23, 2009. The facility has 148,000 barrels of crude oil stored. Production has been halted. Coast Guard and the Alaska Dept. of Environmental Conservation are monitoring the site.
Alaska Volcano Observatory
Flood water and debris from the Drift River push against a retaining wall protecting the Drift River Terminal Facility on Tuesday, March 24, 2009. The facility collects oil from offshore platforms. Now, with Redoubt melting ice and snow on its flanks, the river is a mile-wide zone of broken trees, ice, mud, ash and water. Oil remains in two of the facility's seven tanks.
M. SCOTT MOON / AP / Peninsula Clarion
Some sort of massive seismic event happened at 12:13 PM Alaska time or about 9 minutes ago, my house shook considerably, I am about 140 miles NW of Redoubt, the webicorder is off the chart.
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