TPPS10 PGTW 201808 A. TROPICAL CYCLONE 27P (NARELLE) B. 20/1730Z C. 12.88S D. 139.89E E. THREE/GK2A F. T4.5/4.5/W1.0/24HRS STT: S0.0/03HRS G. IR/EIR H. REMARKS: 13A/PBO TIGHTLY CURVED BNDG/ANMTN. CNVCTN WRAPS 1.4 ON LOG10 SPIRAL YIELDING A DT OF 4.5. MET YIELDS 5.5. PT YIELDS 5.0. DBO DT. I. ADDITIONAL POSITIONS: NONE THOMPSON