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Based on satellite loop ending at 0315, and buoy reports. At 0315Z-(1115pm EDT), the center"swirl" of Ivan was located at the SW corner of convection, and was exposed. The "swirl" is best seen using IR channel 2. Buoy 42041 has reported a wind shift, between 0350-0450Z, Wind was 260deg at 6kts and is now 170deg at 21 gusting to 25kts. Wave height was reported as 16.4ft at 0450Z. |