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Hurricane MARTY

ZCZC MIATCDEP3 ALL
TTAA00 KNHC DDHHMM
TROPICAL DEPRESSION MARTY DISCUSSION NUMBER  22
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2 AM PDT WED SEP 24 2003
 
ALTHOUGH MARTY IS GENERATING NO DEEP CONVECTION...IT IS STILL
EXHIBITING A WELL-DEFINED LOW CLOUD SWIRL WITH A FEW RAINBANDS
VISIBLE ON THE YUMA ARIZONA RADAR. A RECENT QUIKSCAT PASS SHOWED A
COUPLE OF 30 KT VECTORS IN THE NORTHERN GULF OF CALIFORNIA...AND SO
THAT WILL REMAIN THE ADVISORY INTENSITY.
 
THE INITIAL MOTION IS JUST ABOUT STATIONARY.  MARTY IS TRAPPED IN A
WEAK STEERING CURRENT SOUTH OF A MID-LEVEL ANTICYCLONE CENTERED
OVER NEVADA.  NEITHER THE GFS NOR THE UKMET MOVE THEIR RESPECTIVE
850 MB VORTICITY CENTERS MUCH OVER THE NEXT DAY OR SO...AND THE
OFFICIAL FORECAST LIKEWISE CALLS FOR LITTLE MOTION WHILE THE
CIRCULATION DISSIPATES.
 
WATER VAPOR IMAGERY SHOWS DRIER AIR BEGINNING TO OVERTAKE THE
CIRCULATION FROM THE SOUTH...AND THIS HOPEFULLY WILL SOON BEGIN TO
REDUCE THE RAINFALL BEING GENERATED BY THE DEPRESSION.
 
FORECASTER FRANKLIN
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      24/0900Z 30.8N 113.5W    30 KT
 12HR VT     24/1800Z 31.0N 113.5W    25 KT...DISSIPATING
 24HR VT     25/0600Z 31.0N 113.5W    20 KT...REMNANT LOW
 36HR VT     25/1800Z 31.0N 113.5W    20 KT...REMNANT LOW
 48HR VT     26/0600Z...DISSIPATED
 
 
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