NHC Discussion
Posted by
JAC on 4/27/2010, 8:54 am
TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE APR 27 2010
...DISCUSSION...
SHARP UPPER LEVEL TROUGH FROM 32N112W TO 23N140W USHERS IN DRY
AIR MASS WITHIN 300 NM OF NW AXIS AND MARKS NORTHERNMOST
BOUNDARY OF LARGE PLUME OF TROPICAL MOISTURE ADVECTED NE BY 140
KT JETSTREAM PARALLEL AND SE OF AXIS. BROAD DOWNSTREAM MID/
UPPER LEVEL ANTICYCLONIC GYRE CENTERED AT 14N100W EXPANDS E TO
MERGE WITH RIDGE OVER SOUTH AMERICA. WEAK UPPER LEVEL TROUGH
BEING SQUEEZED OUT OF PICTURE STILL REMAINS FROM COSTA RICA TO
06N90W. TROUGH STILL PRODUCES AREA OF DIFFLUENT FLOW ALOFT OVER
WEAK SURFACE TROUGH FROM 12N88W TO 06N90W ENHANCING DEEP
CONVECTION IN SURGES. SEVERAL SURFACE CYCLONIC SWIRLS WERE
NOTED EARLIER WITH VISIBLE IMAGERY BUT UNABLE TO IDENTIFY THEM
UNDER IR. ALTHOUGH NO ORGANIZATION OF SYSTEM IS EXPECTED...AREA
WILL LIKELY REMAIN WITH SCATTERED TO NUMEROUS DEEP CONVECTION AS
TROUGH MOVES OUT BY THU. PLENTY OF MID TO UPPER MOISTURE
AVAILABLE FOR ITCZ CONVECTION AROUND SOUTHERN PERIPHERY OF
ANTICYCLONIC GYRE.
|
84
In this thread:
Post A Reply
This thread has been archived and can no longer receive replies.