000
WTPZ41 KNHC 170834
TCDEP1
POST-TROPICAL CYCLONE ALVIN DISCUSSION NUMBER 8
NWS NATIONAL HURRICANE CENTER MIAMI FL EP012013
200 AM PDT FRI MAY 17 2013
ASCAT AND OSCAT DATA SHOW THAT ALVIN LACKS A CLOSED CIRCULATION IN
ITS WESTERN SEMICIRCLE. THE LATEST SATELLITE IMAGES ALSO INDICATE
THAT THE SYSTEM HAS BECOME ELONGATED WITHOUT A WELL-DEFINED CENTER
AND FURTHER EMBEDDED WITHIN THE ITCZ. THEREFORE...ALVIN IS NO
LONGER A TROPICAL CYCLONE...AND THIS IS THE LAST ADVISORY.
ALTHOUGH THE REMNANTS WILL BE OVER WARM WATER FOR THE NEXT COUPLE
OF DAYS...THE GLOBAL MODELS GENERALLY SHOW PERSISTENT WESTERLY
SHEAR...WHICH WILL LIKELY INHIBIT ANY REGENERATION ATTEMPTS.
FOR ADDITIONAL INFORMATION ON THIS SYSTEM PLEASE SEE HIGH
SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER
AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN01 KWBC.
FORECAST POSITIONS AND MAX WINDS
INIT 17/0900Z 10.3N 112.0W 30 KT 35 MPH
12H 17/1800Z...DISSIPATED
$$
FORECASTER BLAKE