ZCZC MIATCDEP3 ALL TTAA00 KNHC DDHHMM TROPICAL STORM FRANK DISCUSSION NUMBER 12 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 2 PM PDT WED AUG 25 2004 DEEP CONVECTION REMAINS ABSENT...WITH ONLY MODERATE CONVECTION REMAINING JUST NORTH OF THE EXPOSED LOW LEVEL CENTER...AND THE CIRCULATION IS GRADUALLY SPINNING DOWN. DVORAK T NUMBERS ARE DOWN TO 2.0 AND CI NUMBERS DOWN TO 3.0. THE INITIAL INTENSITY IS BASED ON A COMPROMISE BETWEEN THESE VALUES AND IS REDUCED TO 40 KT. FRANK IS LOCATED OVER SST NEAR 24 DEGREES CELSIUS...AND CONTINUED STEADY WEAKENING IS EXPECTED UNTIL DISSIPATION WITHIN 36 HOURS OR LESS...WHICH IS ALSO SUGGESTED BY SHIPS AND GFDL GUIDANCE. FRANK CONTINUES TO MOVE JUST SLIGHTLY NORTH OF DUE WEST AT ABOUT 7 KNOTS. THE LOW TO MID LEVEL RIDGE HAS BECOME ESTABLISHED TO THE NORTH OF THE SYSTEM. AS A RESULT...A GENERAL WESTWARD MOTION OF THE DEPRESSION AND ITS EVENTUAL REMNANT LOW IS ANTICIPATED DURING THE NEXT FEW DAYS. THIS FORECAST IS BASICALLY AN UPDATE OF THE PREVIOUS ADVISORY AND REMAINS GENERALLY CONSISTENT WITH MOST DYNAMICAL MODELS. FORECASTER KNABB/BEVEN FORECAST POSITIONS AND MAX WINDS INITIAL 25/2100Z 22.2N 118.1W 40 KT 12HR VT 26/0600Z 22.3N 119.3W 30 KT 24HR VT 26/1800Z 22.4N 120.9W 25 KT 36HR VT 27/0600Z 22.5N 122.5W 25 KT...DISSIPATING 48HR VT 27/1800Z 22.5N 124.5W 20 KT...REMNANT LOW 72HR VT 28/1800Z 22.5N 128.0W 20 KT...REMNANT LOW 96HR VT 29/1800Z 22.5N 131.0W 20 KT...REMNANT LOW $$ NNNN
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Page last modified: Wednesday, 25-Aug-2004 20:43:32 UTC