REPORT DATE: 10-14-2018
REPORT TIME: 0145 UTC
REGION: GULF OF MEXICO
SUB REGION: N/A
AREA/BLOCK: GRAND ISLE    73 
IMAGE DATE: 10-13-2018
IMAGE TIME: 1632 UTC
DATA SOURCE: LANDSAT8
MODE: Multispectral  
RESOLUTION: 30 meter
LOCATION: 28°46'38" N/90°05'47" W
AREA: 2.53 square kilometers (Updated 05/26/2020)
CONFIDENCE: Medium-High
REMARKS: Possible oil was observed in satellite imagery. This anomaly is unconfirmed as oil. Anomaly appeared dark in the absence of strong sun illumination, but showed very slight interslick color variability on the western extent, too subtle to have used in a thickness assessment. It exhibited well defined edges against the ocean background, was removed from natural phenomena, clearly stood out from any other feature in the vicinity, and tested negative for vegetation. The dimensions were approximately 5 NMI long stretching horizontally, and 0.10 NMI wide on average.  


UNCERTAINTIES: There was no clear point of origin, but one oil facility did reside within the spatial extent of the anomaly, and the anomaly also intersected pipelines. 

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

ERMA: https://erma.noaa.gov/gulfofmexico/erma.html#/layers=1+46735&x=-90.10089350000001&y=28.7741435&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.