Alert archive / Alaska / Ashfall Advisories in 2023

Ashfall Advisory 2, NWS Anchorage, AK

September 25, 2023

NWS Anchorage, AK issued this ashfall advisory at Sep 25, 2023, 6:35 AM AKDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 25, 2023, 6:35 AM AKDT (14:35 UTC)
Expired
Sep 25, 2023, 1:04 PM AKDT
In force
6 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

959 
WWAK72 PAFC 251435
NPWALU

URGENT - WEATHER MESSAGE
National Weather Service Anchorage AK
635 AM AKDT Mon Sep 25 2023

AKZ181-261400-
/O.NEW.PAFC.AF.Y.0002.230925T1435Z-230926T1400Z/
Alaska Peninsula-
Including the cities of Cold Bay and Sand Point
635 AM AKDT Mon Sep 25 2023

...ASHFALL ADVISORY IN EFFECT UNTIL 6 AM AKDT TUESDAY...

* WHAT...Up to one quarter inch of ashfall accumulation.

* WHERE...False Pass.

* WHEN...Until 6 AM AKDT Tuesday.

* IMPACTS...Minor equipment and infrastructure damage. Reduced 
  visibility. Persons with respiratory problems may have 
  difficulty breathing when outside. Electronic devices may be 
  damaged if not protected.

* ADDITIONAL DETAILS...As of 0545 AM this morning, satellite
  imagery indicates that an eruption is ongoing at Shishaldin
  Volcano. Ash is being lofted to the south and east of the
  volcano, which may lead to minor ashfall amounts for the
  community of False Pass. Trace amounts are still expected at
  King Cove and Cold Bay. This statement will be updated if
  conditions change.

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. Please report any observations of ashfall to
the Alaska Volcano Observatory by calling 907-786-7497 or
visiting http://www.avo.alaska.edu/ashfall/ashreport.php.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/afc
1 follow-up statement
880 
WWAK72 PAFC 252104
NPWALU

URGENT - WEATHER MESSAGE
National Weather Service Anchorage AK
104 PM AKDT Mon Sep 25 2023

AKZ181-252215-
/O.CAN.PAFC.AF.Y.0002.000000T0000Z-230926T1400Z/
Alaska Peninsula-
Including the cities of Cold Bay and Sand Point
104 PM AKDT Mon Sep 25 2023

...ASHFALL ADVISORY IS CANCELLED...

Eruptive activity at Shishaldin Volcano has declined significantly
since this morning and significant additional ash accumulation is
no longer expected. However, a Special Weather Statement remains 
in effect as trace amounts of ash may continue to fall out from 
the residual ash cloud across the southern Alaska Peninsula.

$$

For more information from the National Weather Service visit
https://weather.gov/afc

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 25, 3:15 AM AKDTSmall Craft AdvisoryAFC36 hr
Sep 25, 3:25 AM AKDTGale WarningAFC36 hr
Sep 25, 3:25 AM AKDTSmall Craft AdvisoryAFC58 hr

Nearby

Ashfall Advisories in Alaska, 2023Every ashfall advisory in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.