REPORT DATE: 07-20-2021 REPORT TIME: 0130 UTC REGION: PACIFIC SUB REGION: ALASKA AREA/BLOCK: Shumagin 6705 IMAGE DATE: 07-19-2021 IMAGE TIME: 1647 UTC DATA SOURCE: SENTINEL1A MODE: Interferometric Wide (IW) VV RESOLUTION: 20 meter LOCATION: 55°22'03" N/158°41'25" W AREA: 3.09 square kilometers CONFIDENCE: Medium-High REMARKS: Possible oil was observed in satellite imagery. This anomaly is unconfirmed as oil. The anomaly measured approximately 9.6 nmi long and approximately 0.67 nmi wide at its widest point. The anomaly had a sharp contrast to its homogeneous surroundings that had no other features in the vicinity. The anomaly slightly widened with distance, and there was a vessel in the immediate area. Winds were from the southwest at 10 kts at the time of the image. UNCERTAINTIES: The shape of the slick does appear to be a little wispy in shape on the edges, and there are no sharp turns. Maps and shapefiles can be accessed at: www.ospo.noaa.gov/Products/ocean/marinepollution/ ERMA: https://erma.noaa.gov/arctic/erma.html#/layers=1+47620&x=-158.7715355&y=55.392309&z=11&panel=layer 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. For further information on oil spill response and assessment go to:https://response.restoration.noaa.gov/oil-and-chemical-spills/oil-spills While NESDIS makes every effort to ensure that its databases are error-free, errors do occur. With respect to documents available from this server, neither the United States Government nor any of its employees, makes any warranty, express or implied, including the warranty of merchantability and fitness for a particular purpose; nor assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed; nor represents that its use would not infringe privately owned rights.