IMA_FARANG Posted December 13, 2015 Share Posted December 13, 2015 The following rom the Japan Typhoon watch office. WDPN31 PGTW 131500MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//SUBJ/PROGNOSTIC REASONING FOR TYPHOON 28W (MELOR) WARNING NR 09//RMKS//1. FOR METEOROLOGISTS.2. 6 HOUR SUMMARY AND ANALYSIS. TYPHOON (TY) 28W (MELOR), LOCATED APPROXIMATELY 429 NM EAST-SOUTHEAST OF MANILA, PHILIPPINES, HAS TRACKED WESTWARD AT 11 KNOTSOVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITEIMAGERY (EIR) SHOWS TY MELOR HAS RAPIDLY INTENSIFIED AS EVIDENCED BYVERY TIGHTLY CURVED SPIRAL BANDING WRAPPING INTO A SHARPLY-OUTLINEDEYE THAT HAS CONSTRICTED TO A 6-NM DIAMETER. ADDITIONALLY, THE SYSTEMHAS BECOME VERY DEEP, MORE COMPACT AND SYMMETRIC. THE INITIALPOSITION IS BASED ON THE EYE FEATURE IN THE EIR LOOP WITH HIGHCONFIDENCE. THE INITIAL INTENSITY OF 115 KNOTS IS BASED ON CONGRUENTDVORAK ESTIMATES FROM PGTW AND KNES. THE CYCLONE IS JUST SOUTH OF ADEEP LAYERED SUBTROPICAL RIDGE (STR) IN VERY FAVORABLE ENVIRONMENTALCONDITIONS WITH LOW (10-15 KNOT) VERTICAL WIND SHEAR (VWS), WARM SEASURFACE TEMPERATURES (ABOVE 28 CELSIUS), AND A HIGHLY-EFFICIENTPOLEWARD OUTFLOW, AS EVIDENCED ON ANIMATED WATER VAPOR IMAGERY. TY28W IS TRACKING ALONG THE SOUTHERN PERIPHERY OF THE STR.3. FORECAST REASONING. A. NO CHANGE TO THE FORECAST PHILOSOPHY SINCE THE PREVIOUSPROGNOSTIC REASONING MESSAGE, HOWEVER THE PEAK FORECAST INTENSITYHAS AGAIN BEEN ADJUSTED UPWARDS. B. TY MELOR WILL CONTINUE TO TRACK GENERALLY WESTWARD TO WEST-NORTHWESTWARD UNDER THE STEERING INFLUENCE OF THE STR. FAVORABLEENVIRONMENTAL CONDITIONS WILL PERSIST AND THE CURRENT RAPIDINTENSIFICATION RATE IS EXPECTED TO CONTINUE TO A PEAK OF 135 KNOTSOVER THE NEXT 12 HOURS BEFORE MAKING LANDFALL OVER SOUTHERN LUZONNEAR SORSOGON. AFTER TAU 12, LAND INTERACTION, IN ADDITION TOINCREASING VWS WILL CAUSE A RAPID WEAKENING. BY TAU 72, TY 28W WILLBE REDUCED TO A 40-KNOT TROPICAL STORM Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now