[Coral-List] Present Bleaching Event - PR & USVI etc.
scott.stripling at noaa.gov
Thu Sep 22 11:23:58 EDT 2005
With the NE Caribbean currently located underneath an elongated area of
light and variable winds will continue to dominate the region for the
next 1 to 2 weeks.
Computer models are forecasting only brief (6-12 hour periods) of anything
approaching normal trade wind flow during this time. Thus the stagnant
mixing conditions will
persist regionally through the first week of October, at the least.
NOAA/NWS San Juan
Alan E Strong wrote:
> *NOTICE - Bleaching continues to evolve throughout Eastern Caribbean*
> Beginning in the central Keys during August (Sombrero Key especially)
> the warm water episode and accompanying bleaching for this year is
> progressing south and eastward through Cuba, Puerto Rico and the
> Virgin Islands. This can visually be seen in our recent 12-week
> composite of HotSpot accumulations - Degree Heating Weeks (DHWs):
> and HotSpots:
> Extremely high DHWs above "8" in much of the Virgin Islands are quite
> worrisome as these levels in past bleaching events typically bring
> some mortality to corals. This evolving episode continues to be at
> near unprecedented levels of thermal stress for this region since our
> satellite records began in the mid-80s. From the chart one can observe
> that eastern Puerto Rico is under higher levels of thermal stress at
> present than western PR....hence the recent reports of considerable
> bleaching. Until some reduced solar radiation and/or wind & mixing
> comes to the "rescue" we worry about prospects along much of the
> Windward Islands toward South America over the next month or so.
> Sorry our repot couldn't be more positive.
> Al Strong
> NOAA's Coral Reef Watch
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