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Mount Redoubt is erupting!

Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

We're all fine.

The ash cloud skirted around us. A community 25 miles south had ash, 12 miles north and 15 miles to the northeast. Lucky us.

My ash collection container has nothing in it - however it has high sides. My newly-washed car has a very thin layer of something slightly abrasive. It may or may not be ash. The sunlight has a slightly filtered look, similar to what would happen with a little wildfire smoke in the air.

It will be interesting to see the photos from the AVO-overflight today.

Best news is that commercial pilots are very much aware of the dangers. One Alaska Airline pilot refused to take off last night and insisted on waiting until daylight, so they could see what they were flying into/around/through.

Our most active local online TV news starts they Redoubt video with a general preparedness add that includes pandemic preparedness. Just below the video area on the site is another message for disaster preparedness - also including a pandemic. I'm glad to see the utilization of this teachable moment.

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Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

There was another short eruption at 7:41 PM tonight - ash to 60,000 feet again.

Here's an interesting news article about impact in the valley where I live:
-------------------------------------------------------------------------------
Skwentna bears brunt from volcano
SURREAL: Mat-su Borough mostly unaffected; schools open.

(03/23/09 22:08:56)
WASILLA -- Winds swept Mount Redoubt's towering ash plume toward the Mat-Su Borough Monday, raising fears the area could be deluged with ash.

But the clouds of gritty volcanic debris left the heavily populated region mostly unscathed, save for some Upper Susitna Valley communities where residents woke to find a light dusting on their vehicles, homes and streets. Talkeetna and Trapper Creek were among the places hit.

The heaviest fall, though, was reported in the remote riverfront outpost of Skwentna, about 70 miles northwest of Anchorage. Skwentna Roadhouse manager Bonnie Childs described a surreal scene there around noon.

Up to a quarter-inch of ash covered the snow, the sun was trying to break through a brown-gray fog, the air smelled of sulfur and the wind was starting to blow tiny shards of ash from the trees, she said.

Debra Burdick-Hinton, who along with her family snowmachined to the roadhouse after spending the night camping in the Kichatna Valley, described the area as being shrouded in a dark, gray fog. Unaware of any eruption, the family had first noticed "a light splattering of ash" as they rode on the Yentna River.

"It's just a complete ash-out. You can't see anything," she said. "Hopefully we didn't destroy our machines."

Even so, the impact of the ash fall was more novelty than nuisance for most.

Wasilla, Palmer and other more populated parts of the Matanuska-Susitna Borough were unaffected by the eruption. Schools remained open, as did businesses.

In Talkeetna, a light speckling of ash, hardly distinguishable from dust, fell on the town. But the faint dusting, along with ash in the air, was enough to shut down flights at the airport.

Talkeetna Air Taxi office manager Annie Duquette said the company canceled three flights Monday. The peak of the climbing and tourist season is still a few months off, or the number of grounded flights would have been much higher, she said.

The flights included two to pick up climbers -- a group of two men and two women hunkered down on the Ruth Glacier on Mount McKinley, and a group of two men in the Tordrillo Mountains. Both groups started their trips in mid-March and had food and fuel to last several more days, she said.

The company also postponed a flightseeing trip for a group of four Ohio tourists. The group wasn't too miffed, she said, asking instead where they could drive to see the erupting volcano.

Duquette said the company canceled the flights out of an abundance of caution because of the dangers posed by the gritty ash, which can scratch wings, jam air filters and gum up engines.

"We figured it was better to err on the side of caution," she said.

Also grounded at the airport were about 20 members of the 1st Battalion, 52nd Aviation Regiment from Fort Wainwright in Fairbanks. The crews flew to Talkeetna Sunday in three Chinook helicopters, planning to spend two weeks practicing high-altitude flying maneuvers and helping the National Park Service set up two base camps on Mount McKinley at 7,000 feet and 14,000 feet for the climbing season.

John Leonard, lead mountaineering ranger for the Park Service in Talkeetna, said the group had been scheduled to ferry 10,000 pounds of gear including fuel, medical supplies, tents, propane and other equipment to the camps. At his office Monday, he was still waiting to hear word on whether the mission would be delayed or scrapped altogether.

Meanwhile, to the west, in the Trapper Creek area, about a tenth of an inch of ash reportedly covered the snow -- enough that walkers left behind footprints and people scrambled to protect aircraft, schools, generators and vehicles.

"Everything's got a brown tint, and there's a haze in the air," said Susie Seibert, who operates Gate Creek Cabins about 10 miles up Petersville Road with her husband.

Any of the 45 customers hoping to rent a snowmachine and go riding might have a volcano-enforced shutdown, Seibert said. She was also hoping ash wouldn't clog their generator.

Seibert suffers from asthma and isn't going outside.

"It's really a bummer," she said. "I'm coming off 20 days of steroids trying to get on top of it."

Trapper Creek resident Roz Daniels scanned the snow Monday morning with a flashlight and saw tan.

"It was a windshield wiper's worth," said Daniels, who lives on Oilwell Road, off Petersville Road.

Several area residents noted that the ash fall is more than a dusting, but nowhere near the 1992 eruption of Mount Spurr, which created near-blackout conditions at midday.

Schools around the Mat-Su were kept open, though the 21 students at Trapper Creek Elementary encountered brown snow and hazy air. Trapper Creek and Talkeetna elementary students were kept inside, school officials said.

District maintenance supervisor Henry Cottle spent all night monitoring conditions at Su Valley schools, said Jodi Picou, principal at Talkeetna and Trapper Creek elementary schools. Cottle covered computers and turned off fans in ventilator systems to make sure ash didn't sneak into the buildings.

And while there wasn't much in the way of volcanic fallout at Cubby's Marketplace near the turnoff of the Talkeetna Spur Road from the Parks Highway, there was fallout of a different kind from the eruption.

There was a run on pantyhose, great for protecting air filters on vehicles and heavy equipment. Just a few packages -- petite size only -- remained on the shelves.

Cathie Dawson, who cooks in the store deli, said her husband came in Monday morning and grabbed a bunch of hosiery to protect his excavator, his backhoe and his bulldozer. Dawson doesn't wear hose, but asked him to put some on her car.

"The bus driver came by this morning, he was looking for some big ones," she said. "I said, 'Listen, those queen size are the biggest that they make.' Anyway, we're prepared."

http://www.adn.com/volcano/story/733896.html
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

The eruption at 7:41 PM tonight has a theoretical (which was wrong last night) ash trajectory of toward Anchorage. See a great animation here.

A portrait of Redoubt as it looked before sundown tonight (about 8:30 PM):
710-VolcanoWebCam_standalone_prod_affiliate_7.jpg

2 days earlier:

1237617277_ak231.jpg
 
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Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Tuesday, March 24, 2009; A11


Alaska Volcano Makes Case For Earth Science Funding


In February, Louisiana Gov. Bobby Jindal (R) decried the presence of expanded funding for "something called 'volcano monitoring' " in President Obama's stimulus package, turning the geologic program into a flash point for fiscal conservatives and raising the ire of scientists.

Yesterday, policymakers got a chance to reemphasize the importance of the monitoring program after Alaska's Mount Redoubt erupted overnight, sending five explosive bursts of ash and steam as far as nine miles into the air and shutting down many flights at Ted Stevens Anchorage International Airport.

"This is an indicator and proof of the importance of earth science to the United States of America and to the Department of the Interior and the" U.S. Geological Survey, Interior Secretary Ken Salazar said during a telephone briefing. "Through the work of the USGS and being able to monitor what was happening with Volcano Redoubt, we were able to actually forecast this event . . . to prevent the endangerment of people and places that would otherwise have occurred."

USGS tracking of magma movements and seismic activity and comparison of recent changes with those that preceded the 1989-1990 eruption of the volcano, which continued for four months, allowed scientists to anticipate the eruption this time around, said USGS acting Director Suzette M. Kimball. The National Weather Service is now carefully tracking the path of the clouds of ash as they travel away from the volcano to prevent a recurrence of what happened during the last eruption, when a KLM Royal Dutch Airlines plane encountered ash 150 miles from Redoubt, lost power to its engines and plummeted two miles before regaining power.

Twenty thousand passengers per day travel through airspace affected by the volcano, Salazar said

http://www.washingtonpost.com/wp-dyn/content/article/2009/03/23/AR2009032303103.html
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

This is an indicator and proof of the importance of earth science to the United States of America

It's proof of the importance of ALL basic science, including infectious disease!.

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Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

(this story has good video of oil storage terminal, showing it completely white surrounded by dark muddy flooding)
Redoubt sends mud flowing to oil terminal

Updated: March 24, 2009 11:09 PM


by Leyla Santiago
Tuesday, March 24, 2009

KENAI, Alaska -- The Drift River oil terminal sitting near Mount Redoubt's base has been evacuated and sits mostly surrounded by floods of mud and water caused by the volcano's eruption.

The Chevron facility is a mere 17 miles from the volcano's summit and holds more than 6 million gallons of crude oil. It was evacuated as a precaution on Monday.

An observation flight Tuesday revealed much of the damage caused by the massive mudflows, which are called "lahars."

"There were blocks of glacial ice the size of a car and train in mud flows," geologist Kristi Wallace with the U.S. Geological Survey said.

Two tanks -- each filled with about 3 million gallons of crude oil -- were successfully protected, according to Cook Inlet Pipe Line Co., which operates the terminal. The tanks remain unharmed thanks to a newer dike built since the last eruption.

"We do not see any inundation of the containment, either the secondary or the tertiary containment around the tank farm," Coast Guard Petty Officer Sara Francis said.

Outside the tank farm a hangar, some offices, equipment and pumps took hits from glacier melt, but even this is less than the damage caused in Redoubt's last eruption.

In 1989, muddy water flooded the holding facility. David Strawser, a former terminal employee, was there when it happened.

"It ruined engines and paperwork, and all the electronics," he said in an interview last month.

This time, employees were evacuated and the terminal was shut down within hours of the eruption.

"No sheen or release has been sighted," Francis said.

While this site has seen much of this before, this time it was better prepared to protect its most valuable assets.

http://www.ktuu.com/Global/story.asp?S=10065196
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Electron microscope image of ash from March 15 small steam/ash event B]PRIOR [/B]to 1st true eruption. Note the difference in physical characteristics.
------------------------------------------------------------------------------
early ash.jpg

SEM image of ash particles from the 03/15/2009 event at Redoubt, which preceded the eruption on 03/22/2009. Vesicular juvenile material is clearly absent.

http://www.avo.alaska.edu/image.php?id=17069
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Redoubt Volcano Latest Observations
2009-03-25 10:51:02

A small explosive event occurred at 10:17 AKDT this morning. The plume from this event was not detected by radar, indicating that it did not rise above approximately 12,000 ft asl or contained very little ash. This explosion triggered a flowage event on the north flank of the volcano as indicated by seismicity.

This event was similar to or smaller than the explosion that occurred this morning at 5:12 AKDT.
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Redoubt Volcano Latest Observations
2009-03-26 09:38:42

A major explosive event occurred at 09:24 AKDT. National Weather Service reports the cloud height to be at least 65,000 ft above sea level. Refer to the NWS Redoubt Coordination web page (http://pafc.arh.noaa.gov/volcano.php ) for latest cloud information.

-------------------------------------------------------------------------------

Redoubt eruptions threaten airline routes


By JULIA O'MALLEY and KYLE HOPKINS
jomalley@adn.com

(03/26/09 09:06:19)
Redoubt volcano erupted for the second time this morning with a huge explosion at 9:24 that sent a cloud of ash to 65,000 feet above sea level.

"It looks like the plume is going to drift kind of over Prince William Sound and then into the Copper River, Cordova area, and then into the Panhandle," said Alaska Volcano Observatory geologist Chris Waythomas in Anchorage.

"It could cause some real serious issues for aviation throughout the day, and I wouldn't be surprised if some flights are going to be canceled here," he said.

Alaska Airlines officials said they are still evaluating whether flight cancellations will be necessary. Travelers are advised to check the status of flights before going to the airport.

The National Weather Service is issuing an ash advisory for the Kenai Peninsula, from Ninilchik south. A light sprinkling of ash from an earlier eruption this morning is expected to dust Homer today.

The wind is taking the plume in different directions at different elevations, with winds between about 40,000 and 50,000 feet moving the plume toward Anchorage.

"It's possible that we could get some trace amounts (of ash in Anchorage), but it may not be anything noticeable right off the bat. People might notice a film on their windshields," Waythomas said.

Dialed back to code orange yesterday, Redoubt exploded this morning at 8:34, according to the Alaska Volcano Observatory. As a result of the two eruptions, the National Weather Service says Homer residents may get some ash fall this afternoon, according to Todd Foisy, a Weather Service meteorologist.

Early reports say the first eruption of the morning sent an ash cloud to at least 30,000 feet above sea level but that it contained less ash than earlier large explosions.

http://www.adn.com/volcano/story/737146.html
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

The timing of the eruptions occured at the alignments I discussed here. The reasons for the timing of the actual eruptions are certainly debatable, but when these possible relationships occur we should wonder if we don't understand everything about our solar system.

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Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Upper level ash is headed toward all airports in populated areas.

All flights in and out of Anchorage are being cancelled. Flights from other states are cancelled, one from Seoul, Korea landed just in time and a flight from Hong Kong is "in the air."

More details and nice photos here.

Update: Hong Kong just landed okay.

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Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

eruption from equator.jpg

Ash cloud seen in the geostationary MTSAT data, courtesy of the National Weather Service. We are at the extreme edge of the view for the satellite which is over the equator in Asia.

Picture Date: March 26, 2009 17:30:00 UTC
Image Creator: Dehn, Jonathan;

Image courtesy of the National Weather Service.

http://www2.avo.alaska.edu/image.php?id=17104
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Thanks AlaskaDenise for this thread.
 
Re: Mount Redoubt is erupting! started 10:38 local time

Re: Mount Redoubt is erupting! started 10:38 local time

Hopefully the major eruptions will become less frequent - SOON.

There was another large eruption about 2 hours ago - again at night when airplanes cannot see where the ash is, so.....

The international airport is a ghost town, except for some people sleeping on benches. Evening TV news they showed the empty boarding gate areas with flight announcements (about cancelations) playing. It was eerie, but it's a preview of what it would look like during a pandemic - empty.

Good news is that all the surrounding areas have snow and rain in the forecast, so the ash will not hang in the air to breathe or clog engine filters. It will come down as dirty snow or rain. Cars look like they went through a car wash to get dirty - evenily applied dirt on all surfaces. :(

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Re: Mount Redoubt is erupting! + CDC Info on Volcano Preparation & Recovery

Re: Mount Redoubt is erupting! + CDC Info on Volcano Preparation & Recovery

To summarize the last 24 hours:

There were 4 eruptions today - 08:40 (50,000 feet high), 17:35 (40,000 feet), and 19:25 (51,000 feet) and a small one just started as I was typing - 23:20 (40,000 feet).

The international airport is almost a ghost city, out-of-state mail has stopped, various large events dependent on out-of-state participants have been cancelled, people check the ash forecast before making any long drives, and locally - folks are complaining they haven?t been getting their CSA produce! Otherwise - life is normal.
-------------------------------------------------
To date:

In the 1989-1990 eruption, there were a total of 20 eruptions over 5 months.
In this eruption there have now been 14 eruptions in just 5 days!

In 1989-1990 the ash clouds never exceeded 45,000 feet.
In this eruption, the top altitude is 65,000 feet.

But this is still a small eruption by Alaskan standards. Read about the Novarupta/Katmai eruption in 1912.

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Re: Mount Redoubt is erupting! + CDC Info on Volcano Preparation & Recovery

Re: Mount Redoubt is erupting! + CDC Info on Volcano Preparation & Recovery

volcano lightening.jpg

Photograph of lightning from Redoubt's 11:20 pm, March 27, eruption,

courtesy of Bretwood Higman.
Picture Date: March 27, 2009
Image Creator: Higman, Bretwood;

http://www.avo.alaska.edu/image.php?id=17283

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