What El-Nino?
Posted by JAC on 6/15/2009, 9:19 am

One of the theories why El-Nino inhibits TC's in the Atlantic is the concept of Walker cells.

http://amath.colorado.edu/courses/4540/2004Spr/walkerss.pdf



When a El-Nino forms, warm water over the EPAC fires convection over it.

The upper-level outflow from these cells travels east and eventually sinks over the Carib create subsidence and inhibiting the formation of TCs there.

That is not happening now.

WV & MIMIC-TPW shows an UL ridge over the Carib with very moist air from the surface to the tropopause.

In fact and anti-cyclone is currently just off-shore from Nicaragua.











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What El-Nino? - JAC, 6/15/2009, 9:19 am
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