Eruption of Mt. Redoubt Volcano, Alaska ALERT: ADVISORY; YEL

[lurkey]

alaska_avo Another explosive eruption of Redoubt volcano occurred at approximately 13:40 AKDT (21:40 UTC). NWS reports a cloud top of 25,000 ft above sea level. Snow and ash are currently obscuring web camera views of the volcano from AVO\'s hut camera. about 1 hour, 37 minutes ago from Twittermail


alaska_avo Seismicity over the last 30 minutes has gradually increasing on several stations. Snow and ash are currently obscuring web camera views of the volcano from AVO\'s hut camera. about 18 minutes ago from Twittermail

[lurkey]

alaska_avo Another explosive eruption of Redoubt volcano occurred at approximately 15:29 AKDT (23:29 UTC). NWS reports a radar cloud top above 35,000 ft above sea level. Seismicity is still quite elevated.Ashfall started falling in Nikiski at 4:10pm AKDT. For ash fall advisories, refer to the National Weather Service Redoubt Coordination web page http://pafc.arh.noaa.gov/volcano.php about 27 minutes ago from Twittermail

WWAK81 PAFC 290048
SPSAER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ANCHORAGE AK
500 PM AKDT SAT MAR 28 2009

AKZ101-125-290600-

...TRACE AMOUNTS OF ASHFALL POSSIBLE FOR ANCHORAGE AND TURNAGAIN
ARM...

REDOUBT VOLCANO ERUPTED AROUND 330 PM AKDT THIS AFTERNOON SENDING AN
ASH CLOUD TOWARD THE EAST-NORTHEAST. IT IS POSSIBLE THAT A LIGHT
DUSTING OF ASH WILL FALL OVER ANCHORAGE AND TURNAGAIN ARM LATE THIS
AFTERNOON AND EARLY EVENING.


WWAK71 PAFC 290016
NPWAER

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE ANCHORAGE AK
416 PM AKDT SAT MAR 28 2009

AKZ101-291330-
/X.CON.PAFC.HW.W.0013.090329T1300Z-090330T0200Z/
ANCHORAGE-
INCLUDING THE CITIES OF...ANCHORAGE...EAGLE RIVER...INDIAN...
EKLUTNA
416 PM AKDT SAT MAR 28 2009

...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO 6 PM AKDT
SUNDAY ALONG TURNAGAIN ARM AND THE HILLSIDE...

A HIGH WIND WARNING REMAINS IN EFFECT FROM 5 AM TO 6 PM AKDT
SUNDAY ALONG TURNAGAIN ARM AND THE HILLSIDE.

A STRONG WEATHER FRONT WILL MOVE INTO THE NORTHERN GULF LATE
TONIGHT. AHEAD OF THE FRONT THE PRESSURE GRADIENT WILL TIGHTEN
AND CHANNEL STRONG WINDS THROUGH TURNAGAIN ARM AND THE HILLSIDE.
WINDS WILL INCREASE TO 50 TO 65 MPH WITH GUSTS 75 TO 85 MPH
DURING THE DAY ON SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD
BE BLOWN AROUND OR DAMAGED BY THE WIND.

&&

$$

AKZ121-290600-
/X.NEW.PAFC.AF.Y.0010.090329T0016Z-090329T0600Z/
WESTERN KENAI PENINSULA-
INCLUDING THE CITIES OF...KENAI...SOLDOTNA...HOMER...
COOPER LANDING
416 PM AKDT SAT MAR 28 2009

...ASHFALL ADVISORY IN EFFECT UNTIL 10 PM AKDT THIS EVENING FROM
KENAI NORTHWARD...

THE NATIONAL WEATHER SERVICE IN ANCHORAGE HAS ISSUED AN ASHFALL
ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM AKDT THIS EVENING FROM
KENAI NORTHWARD.

REDOUBT VOLCANO ERUPTED AROUND 330 PM AKDT THIS AFTERNOON. THE
ASH CLOUD IS MOVING TOWARD THE EAST-NORTHEAST. MINOR ASHFALL IS
POSSIBLE FROM KENAI NORTHWARD INTO EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN ASHFALL ADVISORY MEANS THAT ASH WILL BE DEPOSITED IN THE
ADVISORY AREA. PEOPLE IN AREAS OF ASHFALL SHOULD SEAL WINDOWS AND
DOORS. PROTECT ELECTRONICS AND COVER AIR INTAKES AND OPEN WATER
SUPPLIES. MINIMIZE DRIVING. LISTEN TO YOUR RADIO STATION FOR
FURTHER INFORMATION.

&&

$$

[lurkey]

KTUU-TV: Mount Redoubt erupted twice Saturday on the heels of an active Friday. Reports of ash fall are coming in from Anchorage.

[Dionne]

At 130 AM AKDT the NWS in Anchorage canceled the volcanic ash advisory. Although at this time the Ted Stevens Anchorage International Airport and Elmendorf AFB are still reporting volcanic ash in hourly advisories.

Alaska Aviation Weather Unit still lists the entire Cook Inlet region as being under SIGMET.

[HURAKAN]

[lurkey]

alaska_avo Another explosive eruption of Redoubt volcano occurred at approximately 19:23 AKDT (03:23 UTC). Seismicity has declined, but remains well above background. Ashfall from the explosion at 3:29 ADT has been reported in locations from Anchorage to Valdez. For ash fall advisories, refer to the National Weather Service Redoubt Coordination web page http://pafc.arh.noaa.gov/volcano.php about 9 hours, 27 minutes ago from Twittermail

alaska_avo Another explosive eruption of Redoubt volcano occurred at approximately 19:23 AKDT (03:23 UTC). Seismicity has declined, but remains well above background. Ashfall from the explosion at 3:29 ADT has been reported in locations from Anchorage to Valdez. For ash fall advisories, refer to the National Weather Service Redoubt Coordination web page http://pafc.arh.noaa.gov/volcano.php about 9 hours, 29 minutes ago from Twittermail

alaska_avo So we've gotten several questions about why we don't see lava at Redoubt: At Augustine and from earlier eruptions at Redoubt we've seen a pattern of explosive eruptions prior to dome-building. We likely had dome-building early in the eruption, but then it was blown away. There is still a chance we'll see lava yet. Sometimes it explodes early to "clear its throat" of old rock, sometimes it's because it's got a lot of pressure build up. If the vent is clear and the pressure let off, then it's easier to allow the magma to flow to the surface. (now returning to the automated updates!) about 6 hours, 9 minutes ago from Twittermail


alaska_avo The repeating earthquakes that started at 23:52 AKDT have ceased. Seismicity is relatively quiet at this time.Ash fall has decreased in the Anchorage area, and will likely continue into the late evening hours as the cloud passes over the area. An ashfall advisory remains in effect until 1 am Sunday 3/29. For updated ash fall advisories, refer to the National Weather Service Redoubt Coordination web page about 5 hours, 8 minutes ago from Twittermail

alaska_avo Seismicity have declined at bit over the last 45 minutes or so.For updated ash fall advisories, refer to the National Weather Service Redoubt Coordination web page: http://pafc.arh.noaa.gov/volcano.php about 2 hours, 26 minutes ago from Twittermail

alaska_avo Seismicity has been at low levels in the past 2 hours. For updated ash fall advisories, refer to the National Weather Service Redoubt Coordination web page: http://pafc.arh.noaa.gov/volcano.php about 31 minutes ago from Twittermail


WVAK03 PAWU 291038
WSVAK3
ANCK WS 291040
PAZA SIGMET KILO 9 VALID 291040/291640 PANC-
ANCHORAGE FIR.
VA FROM PREVIOUS ERUPTIONS FROM REDOUBT VOLCANO WITHIN THE SOUTH
CENTRAL ALASKA IS BLOWING AROUND BY LOW LEVEL WINDS.
VA CLOUD INFORMATION...VA BASES FLSFC/TOPS FL010. THE AREA AFFECTED
THROUGH 291640Z WI N6140 W14828 - N6044 W14834 - N6050 W15037 -
N6135 W15039 - N6140 W14828. VA MOVEMENT STNR. WKN.

ERW AAWU MAR 2009

FVAK23 PAWU 291042
VAAAK3
VA ADVISORY

DTG: 20090329/1040Z

VAAC: ANCHORAGE

VOLCANO: REDOUBT 1103-03

PSN: N6029 W15245

AREA: SOUTH CENTRAL ALASKA

SUMMIT ELEV: 10198 FT/3109 M

ADVISORY NR: 2009-40

INFO SOURCE: SURFACE OBS

AVIATION COLOUR CODE: RED

ERUPTION DETAILS: BLOWING VA FROM EARLIER ERUPTIONS

OBS VA DTG: 29/1030 UTC

OBS VA CLOUD: SFC/FL010 N6143 W14832 - N6043 W14840 - N6051 W15048 -
N6137 W15038 - N6143 W14832 MOVING NW 0 KNOTS.

FCST VA CLOUD +6 HR: 29/1640Z SFC/FL010 N6140 W14833 - N6043 W14840 -
N6056 W15046 - N6137 W15038 - N6140 W14833

FCST VA CLOUD +12 HR: 29/2240Z SFC/FL010 N6140 W14833 - N6040 W14841
- N6050 W15042 - N6135 W15044 - N6140 W14833

FCST VA CLOUD +18 HR: 30/0440Z NO VA EXP

REMARKS: INCREASING WINDS CAUSING BLOWING VA

NXT ADVISORY: 20090329/1640Z

ERW MAR 2009


http://www.ready.noaa.gov/data/web/traj ... AM_006.gif

[MGC]

Talked with my sister who lives in Knik, right across the inlet from Anchorage. She said there was a layer of ash covering the snow. She thinks the ash will aid in the snow melt and provide some fertilizer for the grass this summer.....MGC

[Dionne]

Talked with my sister who lives in Knik, right across the inlet from Anchorage. She said there was a layer of ash covering the snow. She thinks the ash will aid in the snow melt and provide some fertilizer for the grass this summer.....MGC

So she lives in the Matanuska Valley and is gonna grow some grass this year? Cool.

[HURAKAN]

[lurkey]

cool



alaska_avo Seismicity at Redoubt remains well above background. Following last night\'s explosive event at 7:23 pm, we have had no evidence of additional significant explosions. The Anchorage Municipality air quality hotline is 907-343-4899.For information about ash fall and dealing with ash, please see our Links section on this web page. about 18 minutes ago from Twittermail

[Chacor]

Redoubt erupted again at 0710 UTC.

FVAK23 PAWU 300758
VAAAK3
VA ADVISORY

DTG: 20090330/0755Z

VAAC: ANCHORAGE

VOLCANO: REDOUBT 1103-03

PSN: N6029 W15245

AREA: SOUTH CENTRAL ALASKA

SUMMIT ELEV: 10198 FT/3109 M

ADVISORY NR: 2009-42

INFO SOURCE: RADAR

AVIATION COLOUR CODE: RED

ERUPTION DETAILS: ERUPTION OF REBOUBT VOLCANO AT 300710 UTC

OBS VA DTG: 30/0745 UTC

OBS VA CLOUD: SFC/FL200 N6147 W15301 - N6026 W15208 - N5949 W15258 -
N6104 W15506 - N6147 W15301 MOVING NW 35 KNOTS.

FCST VA CLOUD +6 HR: 30/1355Z SFC/FL200 N6331 W15726 - N6141 W15251 -
N6046 W15447 - N6221 W15949 - N6331 W15726

FCST VA CLOUD +12 HR: 30/1955Z NO VA EXP

FCST VA CLOUD +18 HR: 31/0155Z NO VA EXP

REMARKS:

NXT ADVISORY: 20090330/1355Z

ERW MAR 2009

[lurkey]

alaska_avo We are re-analyzing the event reported as an explosive eruption occurring at approximately 23:14 AKDT (7:14 UTC). An episode of stronger tremor at the volcano was in progress when the seismic signal from a M5.4 earthquake near Kodiak Island passed through the Redoubt area causing the tremor amplitude to appear to increase quickly. Radar did show a cloud top above 20,000 ft above sea level at approximately the same time. about 1 hour, 20 minutes ago from Twittermail

[Chacor]

FVAK23 PAWU 301325
VAAAK3
VA ADVISORY

DTG: 20090330/1325Z

VAAC: ANCHORAGE

VOLCANO: REDOUBT 1103-03

PSN: N6029 W15245

AREA: SOUTH CENTRAL ALASKA

SUMMIT ELEV: 10198 FT/3109 M

ADVISORY NR: 2009-43

INFO SOURCE: SATELLITE

AVIATION COLOUR CODE: RED

ERUPTION DETAILS: VA FROM ERUPTION OF REBOUBT VOLCANO AT
300710 UTC HAS DISSIPATED

OBS VA DTG: 30/1300 UTC

OBS VA CLOUD: NO VA OBS

FCST VA CLOUD +6 HR: 30/1920Z NO VA EXP

FCST VA CLOUD +12 HR: 31/0120Z NO VA EXP

FCST VA CLOUD +18 HR: 31/0620Z NO VA EXP

REMARKS:

NXT ADVISORY: THIS IS THE LAST ADVISORY FOR THIS EVENT

ERW MAR 2009

[lurkey]

alaska_avo Seismicity at Redoubt remains well above background. Tremor at the volcano was elevated overnight and has now subsided. The last explosive eruption occurred at 7:23pm AKDT on Saturday, March 28. about 1 hour, 24 minutes ago from Twittermail

Latest Tweets (brought over from page 4)

[lurkey]

alaska_avo There was a small ash emission beginning at 09:44 A.M. AKDT up to about 20,000 feet. A tremor signal was recorded on the seismic network at the same time. AVO will attempt to overfly the volcano this afternoon and make observations and assess activity. about 1 hour, 23 minutes ago from Twittermail

alaska_avo There was a small ash emission beginning at 09:44 A.M. AKDT lasting for about 5 minutes. This event produced a plume to about 27,000 feet that is moving slowly to the northeast. The ash plume does not appear to contain a significant amount of ash. Please refer to the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for more information about ash plume trajectories. No ash fall advisory has been issued for this event. AVO will attempt to overfly the volcano this afternoon and make observations and assess activity. about 38 minutes ago from Twittermail

alaska_avo Beginning about 10:50 this morning, seismicity and web camera images indicate fairly continuous emission of ash from the summit of Redoubt. NWS radar indicates a maximum height of this ash to be about 20,000 feet above sea level. Please refer to the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for more information about ash plume trajectories. No ash fall advisory has been issued for this event. about 9 minutes ago from Twittermail

[cycloneye]

[lurkey]

alaska_avo Beginning about 10:50 this morning, seismicity and web camera images indicate fairly continuous emission of ash from the summit of Redoubt. NWS radar indicates a maximum height of this ash to be about 20,000 feet above sea level. Please refer to the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for more information about ash plume trajectories. No ash fall advisory has been issued for this event. about 2 hours, 50 minutes ago from Twittermail

alaska_avo Over the past twelve hours, ash emissions at Redoubt Volcano have become more frequent, but lower in altitude than during the highly explosive events of the past week. A continuous ash plume has been observed in web camera, satellite and radar images, and by pilots. These plumes vary in their intensity and have generally been at low altitude (less than 20,000 feet above sea level). Occasional, short lived events have produced ash clouds that rise as high as 27,000 feet above sea level. Ash fall from these events is currently not likely to reach population centers in the Cook Inlet. Please see the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for the latest ash fall information. about 2 hours, 11 minutes ago from Twittermail

alaska_avo Seismic activity and webcam views suggest that ash production has diminished over the last hour. Ash emissions at Redoubt Volcano today have varied in their intensity and have produced low altitude plumes (less than 20,000 feet above sea level). Occasional, short lived events have produced ash clouds that rise as high as 27,000 feet above sea level. Ash fall from these events is currently not likely to reach population centers in the Cook Inlet. Please see the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for the latest ash fall information. about 45 minutes ago from Twittermail

[lurkey]

alaska_avo Webcam views show a steam-rich plume at ~15-20,000 feet that contains varying amounts of ash. Winds at that altitude are heading NE from the volcano. Seismicity continues to show small, discrete events. For information concerning ashfall advisories go to http://pafc.arh.noaa.gov/volcano.php A regional earthquake south of Kodiak was visible on the webicorders at 19:28. about 9 hours, 23 minutes ago from Twittermail

alaska_avo At 23:26 AKDT Redoubt sent an ash plume to 25,000 ft asl. The plume headed east and dissipated over Cook Inlet. Strong thermal anomalies suggest a fresh dome is growing at the surface. For information concerning ashfall advisories go to http://pafc.arh.noaa.gov/volcano.php about 6 hours, 5 minutes ago from Twittermail

alaska_avo Tremor episodes and small discrete earthquakes have been observed in the past hour. For information concerning ashfall advisories go to http://pafc.arh.noaa.gov/volcano.php about 5 hours, 10 minutes ago from Twittermail

alaska_avo Seismicity at the volcano has been low, but remains above background level. Weak tremor and small discrete earthquakes have been observed in the past hour. For information concerning ashfall advisories go to http://pafc.arh.noaa.gov/volcano.php about 1 hour, 2 minutes ago from Twittermail

[lurkey]

alaska_avo Webcam views are currently showing a low elevation steam-rich plume at the summit and clear weather. This plume may contain very small amounts of ash.Seismicity at the volcano has been low, but remains above background level. Weak tremor and small discrete earthquakes have been observed during the night.There are no NWS ashfall advisories in affect at present. For information concerning ashfall advisories go to http://pafc.arh.noaa.gov/volcano.php about 1 hour, 28 minutes ago from Twittermail

[lurkey]

alaska_avo Continuous low level emissions of steam, volcanic gases, and ash continue at Redoubt Volcano. Seismicity consists of volcanic tremor and occasional discrete earthquakes. Satellite images from this morning show a broad layer of volcanic haze extending east of the volcano over the Kenai Peninsula, the Anchorage Bowl, and the Matanuska-Susitna Valley. Please see the National Weather Service Redoubt coordination page http://pafc.arh.noaa.gov/volcano.php for the latest ash fall information. about 30 minutes ago from Twittermail