REPORT DATE: 06-12-2019
REPORT TIME: 0050 UTC
REGION: PACIFIC
SUB REGION: ALASKA
AREA/BLOCK: Aleutian Arc  6472
IMAGE DATE: 06-11-2019
IMAGE TIME: 1745 UTC
DATA SOURCE: SENTINEL1A 
MODE: Interferometric Wide (IW) VV
RESOLUTION: 20 meter
LOCATION: 52°33'40" N/172°29'14" W
AREA: 1.72 square kilometers (Updated 05/26/2020)
CONFIDENCE: Medium
REMARKS: Possible oil was observed in satellite imagery. This anomaly is unconfirmed as oil. The anomaly was located approximately 17 nmi north of the north coast of Seguam Island in the Aleutian island chain of Alaska. It measured approximately 5.5 nmi in length and was up to 0.35 nmi in width, trailed south and south-southeastward from the suspected source and widened with distance. SAR-derived winds were from the east-southeast at about 15 kts at the time of the image.  The anomaly had well-defined edges and was distinct from its surroundings.

UNCERTAINTIES: The anomaly could have been the result of fishing activity. Thus, confidence that this was an oil discharge was medium.

ANALYST: CLARK
Maps and shapefiles can be accessed at: www.ospo.noaa.gov/Products/ocean/marinepollution/

ERMA: https://erma.noaa.gov/arctic/erma.html#/layers=1+46966&x=-172.47401150000002&y=52.534651&z=11&panel=layer

For further information on oil spill response and assessment go to: https://response.restoration.noaa.gov/oil-and-chemical-spills/oil-spills


If you would like to share any feedback about this report or have questions, please contact the operational analyst at (301) 683-1403 or send to oceanmap@noaa.gov. Email alerts are available only for federal and state government officials involved in response efforts. Requests to be added to the email alerts should also be sent to oceanmap@noaa.gov. Please allow up to 2 business days to process the request.