Recent reports indicate that a massive red tide event comprised primarily of Karenia brevis has been developing off the west coast of Florida. Indications are that this is the largest event since 2006 and has already been linked to reports of large fish kills. The most recent survey of Karenia brevis concentration indicates that the large offshore feature to the west, northwest of Tampa seen in the image above that was taken on Friday, 8 August 2014 by the MODIS instrument on the Aqua spacecraft is the bloom. The image below is a natural-color rendition of the bloom.
More recent satellite images have been generally cloud-covered in this region but we will continue to monitor the situation and post any updated images as they appear.