AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
Summary | Webcams | Webicorders | RSAM | Activity Notifications | Notification Search | Cleveland | Shishaldin | Pavlof 
You are here: Home > Current Volcanic Activity > Shishaldin

Shishaldin: Color Code ORANGE Alert Level WATCH
Local time: December 22, 2014 0825 AKST (December 22, 2014 1725 UTC)
SHISHALDIN LINKS

SAMPLES

OTHER LINKS

COLOR CODE TIMELINE

CODE DEFINITIONS
ORANGE: Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway with no or minor volcanic-ash emissions [ash-plume height specified, if possible].
WATCH: Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.
More information on color/alert definitions
LOCATION
SHISHALDIN UPDATES
ORANGE/WATCH 2014-12-21 11:58:51 - Daily Update
ORANGE/WATCH 2014-12-20 10:35:26 - Daily Update
ORANGE/WATCH 2014-12-19 14:26:59 - Weekly Update
ORANGE/WATCH 2014-12-18 12:36:26 - Daily Update
ORANGE/WATCH 2014-12-17 12:15:16 - Daily Update
ORANGE/WATCH 2014-12-16 11:59:13 - Daily Update
ORANGE/WATCH 2014-12-15 12:38:02 - Daily Update
ORANGE/WATCH 2014-12-14 12:09:02 - Daily Update

All Shishaldin Reports

Color Code and Alert Level Definitions

ASH FALL AND ASH CLOUD FORECASTS: MODEL OUTPUT
Mathematical models help forecast where an ash cloud will drift, how fast, and how high, as well as where ash will reach the ground. These products from USGS, NOAA, and UAF use forecast winds and assumptions about the size of the eruption to generate forecast graphics. AVO runs these models when a volcano is restless to know where ash would go IF an eruption occurred. This DOES NOT mean that an ash cloud has been produced. For actual eruptions, AVO will update models with better information as it becomes available. Click on individual models graphics to learn more.
ASH FALL FORECASTS
ASH FALL FORECAST

Enlarge and learn more
REPORTED ASHFALL

Enlarge and learn more
ASH CLOUD FORECASTS (AIRBORNE):
ASH3D CLOUD HEIGHT

Enlarge and learn more
PUFF CLOUD HEIGHT

Enlarge and learn more
ASH3D CLOUD LOAD

Enlarge and learn more
TRAJECTORY FORECASTS:
HYSPLIT TRAJECTORY

Enlarge and learn more
THESE PRODUCTS MAY NOT BE CURRENT.
During an actual eruption, see National Weather Service forecasts of airborne ash hazard to aircraft (SIGMETS: http://aawu.arh.noaa.gov and Volcanic Ash Advisories: http://vaac.arh.noaa.gov) as well as forecasts of ash fall: http://pafc.arh.noaa.gov.
INSTRUMENT DATA

SELECTED IMAGES
thumbnail
Index map
thumbnail
Jan 30, elevated surface temp in satellite image
thumbnail
Jan 28 steam plume in webcam view
thumbnail
Mar 27 sat image
thumbnail
May 14, 2014, courtesy Greg Walters
View all images of this event
LINKS
Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/activity/Shishaldin.php
Page modified: October 8, 2014 15:48
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS