Satellite Source: Landsat 8
Mode: Multispectral
Resolution: 30 meter
Image Date & Time: 05-06-2018 1631 UTC

Confidence: Medium-High
Issue Date: 05-07-2018

Region: Gulf of Mexico
Location: 29�27'03" N, 89�24'11" W
Coverage Area: 1.21 km^2

Remarks:
Possible oil was observed in satellite imagery. This anomaly is unconfirmed 
as oil. Bright shimmery feature appeared connected to a fixed structure 
that is believed to be in State waters. The anomaly tested negative for 
vegetation which further increased the likelihood of it being oil. The 
edges were only moderately defined and the image required significant 
enhancement, but it definitively stood out from other natural features 
in the image. Confidence is not high due to the proximity to land, where 
there are more false positives than well offshore. The anomaly measured 
1.75nmi in length with the central feature about 0.25nmi in width and 
a trailing "tail" about 0.05nmi in width. Winds around the time of the 
pass were from the North at 30kts.

Uncertainties:
Composition may not be crude oil, as there are a greater amount of false 
positive signatures near shore compared to off shore


Analyst: Ramirez


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