An interesting Tropical Wave in the mid-Atlantic
Posted by JAC on 6/2/2009, 7:31 am
This is a bit unusual for this time of year.

A high-amplitude tropical wave is currently along 32W.

It's head is sticking above the ITCZ and it has an anti-cyclone overhead.

Needs to bear watching particualry past 50W where SST's are warm enough to support TC development.

92L actually could help to support development of this in that it can pull up high theta-e boundary-layer air out of the ITCZ and also can create an UL poleward outflow channel.



TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
805 AM EDT TUE JUN 02 2009

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER
OBSERVATIONS...AND RADAR.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1030 UTC.

...TROPICAL WAVES...

A TROPICAL WAVE IS ALONG 32W S OF 10N MOVING W 10-15 KT. THE
AXIS IS ANALYZED ALONG THE WRN EDGE OF A BROAD MAXIMUM IN TOTAL
PRECIPITABLE WATER. SATELLITE IMAGES FROM LATE MON INDICATED A
SUBTLE INVERTED-V CLOUD STRUCTURE. SINCE THEN...MUCH OF THE
ASSOCIATED CLOUDINESS HAS BECOME MORE LINEAR. SCATTERED MODERATE
CONVECTION PERSISTS MAINLY TO THE E OF THE AXIS WITHIN THE
INTERSECTION OF THE ITCZ FROM 1N-7N BETWEEN 26-34W...ENHANCED BY
DIFFLUENCE ALOFT.










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An interesting Tropical Wave in the mid-Atlantic - JAC, 6/2/2009, 7:31 am
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