DHS&EM 27 February 2009 Situation Report 09-058Postmark
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From:Friday, February 27, 2009 1:53 PM -0900
Subject:DHS&EM 27 February 2009 Situation Report 09-058 

SITUATION REPORT 09-058 (as of 11:00 AM, 27 February 2009)

Homeland Security Advisory System – National Level:  Yellow-Elevated
Homeland Security Advisory System – Alaska Level:  Yellow-Elevated
State Emergency Coordination Center Preparedness Level 1
Maritime Security (MARSEC) Level – Level I – Low.
Military installations in Alaska are at FPCON A.
State of Alaska Cyber Security Alert Level: Guarded
World Health Organization Pandemic Phase - Phase 3: No or very limited human-to-human transmission (An Influenza Pandemic situation report, which contains an explanation of the WHO Pandemic Phases, is attached to this situation report and updated every Tuesday)

State of Alaska Situation
(Updates to this section from previous Situation Report are in Italics.)

Travel Advisory
Dalton Highway Milepost 239 through 253 (Atigun Pass)
Dalton Highway Milepost 284 through 356 (Sag River)
A travel advisory has been issued for Mileposts 239 through 253 and 284 through 356.  Due to windy conditions, several sections of the road are drifted closed.  Crews and equipments are out clearing the road.  Expect delays and drive with extreme caution.

Alaska Volcano
DHS&EM along with Alaska Volcano Observatory and the National Weather Service staff are closely monitoring Redoubt Volcano.  

Alaska Volcano Observatory’s Weekly Update, 27 February 2009 1:31 PM

Redoubt Volcano
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Unrest at Redoubt Volcano continues. No eruption has occurred.

Relatively low-amplitude volcanic tremor and intermittent discrete earthquakes characterized seismic activity at Redoubt from February 21-24. During this time, clear weather allowed many web camera and satellite views that showed nothing out of the ordinary.

On Wednesday, February 25, a broad-spectrum seismic signal at 9:29 AM AKST was likely associated with a small mud flow originating from a melt hole in the Drift glacier at about 5600 feet above sea level. This dark deposit was seen in a web camera image from 10:03 AM AKST that morning, and observers on an overflight the next day reported that the deposit was several hundred meters in length. Later the same day, at 3:37 PM AKST, tremor amplitude increased sharply and remained elevated for approximately one hour. This tremor was strong enough to be recorded on all seismic stations on Redoubt Volcano as well as many stations surrounding Cook Inlet. At 10:40 PM AKST the same night, the number of discrete earthquakes increased and remained elevated for about four hours.

On Thursday, February 26, a flurry of earthquakes began at 5:30 PM AKST and lasted for roughly one hour. These events were accompanied by the emplacement of a mudflow that covered a large portion of the upper Drift glacier. An ASTER thermal infrared satellite image from last night shows this deposit stretching several kilometers down the Drift glacier.

Because of the clear weather this past week, AVO was able to undertake several flights to Redoubt to measure gas (February 21, and today) and perform upgrades to the monitoring network (February 21, 22, and today). Results from the February 21 gas flight reveal that the emission rates of CO2 and SO2 have not changed since February 7 and both remain high. Upgrades to the network include addition of a broadband seismometer on the volcano's west flank, installation of a pressure sensor (to detect airwaves) north of the volcano, and improvements to the power supply at the AVO hut.

AVO continues to monitor Redoubt Volcano closely, and the observatory is staffed 24 hours a day.

Cleveland Volcano
Current Aviation Color Code: YELLOW
Current Volcano Alert Level: ADVISORY
AVO has received no reports of activity at Cleveland in the past week. Nothing unusual has been observed in mostly to partly cloudy satellite images. Low-level ash emissions may occur with little or no warning.

Blizzard Warning
Kuskokwim Delta -- blizzard warning remains in effect until 5 am Saturday along the coast
Western Arctic Coast -- blizzard warning in effect from noon today to 6 am Saturday
Northern Slopes of the Brooks Range from the Colville River Westward -- blizzard warning in effect from 3 pm this afternoon to 6 am Saturday in passes
Chukchi Sea Coast -- blizzard warning in effect from 9 am this morning to 6 am Saturday
Baldwin Peninsula and Selawik Valley -- blizzard warning in effect from 10 am this morning to 6 am Saturday
Northern and Interior Seward Peninsula -- blizzard warning in effect from 9 am this morning to 6 am Saturday
Southern Seward Peninsula Coast -- blizzard warning in effect until 9 pm this evening
Eastern Norton Sound - Nulato Hills -- blizzard warning in effect from 11 am this morning to 6 am Saturday
St. Lawrence Island and Bering Strait Coast -- blizzard warning in effect until 6 pm this afternoon
Yukon Delta -- blizzard warning in effect until 9 pm this evening

Winter Storm Warning
Lower Kobuk and Noatak Valleys -- winter storm warning in effect from noon today to 12 pm Saturday
Lower Yukon Valley -- winter storm warning in effect from noon today to 6 am this Saturday

Useful link:
Airport Flight Status (Anchorage) http://aia-mufids.dot.state.ak.us/
Air Quality Advisories & Alerts: http://www.dec.state.ak.us/air/am/aq_sr.htm
Oil and Hazardous Substance Releases:  Photographs and spill information "Quick Links: Active Spill Responses":  http://www.state.ak.us/dec/spar/perp/index.htm 
Road Information:  can be found at http://511.Alaska.gov/ or call 511.
Volcano:  Current Volcano information: http://www.avo.alaska.edu
Aviation color codes and Volcano alert levels: http://www.avo.alaska.edu/color_codes.php
Weather: Current Public and Marine Hazards and Regional News http: http://www.arh.noaa.gov/

The Next Situation Report: will be published as of 11:00 am, 2 March 2009. A significant change in the situation or the threat level will prompt an interim report. Please direct questions regarding this report to the SECC at 907-428-7100 or secc@ak-prepared.com.

How to reach the Division of Homeland Security and Emergency Management: Phone the State Emergency Coordination Center (SECC) by dialing (907) 428-7100 or 1-800-478-2337, 24 hours per day.  Information on emergency topics is available on the Division's web site at http://www.ak-prepared.com.  Homeland Security information may be found at http://www.ak-prepared.com/homelandsecurity/

How to reach the Division of Administration – State Cyber Security Program:  If you have questions you may contact Darrell Davis, State Computer Security Officer darrel.davis@Alaska.gov.

For further information:
Being prepared: Ready.gov
Countries:              U.S. State Department Background Notes.
Maps:           United Nations Cartographic Section
                University of Texas Library Map Section.