Tropical Storm NORU Advisory Mi, 28.09.

MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TYPHOON 18W (NORU) WARNING NR 025//
RMKS/
1. TYPHOON 18W (NORU) WARNING NR 025
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   280000Z --- NEAR 16.0N 107.8E
     MOVEMENT PAST SIX HOURS - 270 DEGREES AT 12 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            105 NM NORTHWEST QUADRANT
   REPEAT POSIT: 16.0N 107.8E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   281200Z --- 16.2N 105.8E
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 275 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   290000Z --- 16.4N 103.8E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   VECTOR TO 36 HR POSIT: 280 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   291200Z --- 16.7N 101.9E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
280300Z POSITION NEAR 16.1N 107.3E.
28SEP22. TYPHOON 18W (NORU), LOCATED APPROXIMATELY 29 NM WEST OF
DA NANG, VIETNAM, HAS TRACKED WESTWARD AT 12 KNOTS OVER THE PAST
SIX HOURS. ANIMATED RADAR DATA CONFIRMS THAT TY 18W MADE LANDFALL
JUST SOUTH OF DA NANG, VIETNAM AT 272100Z AND HAS SINCE RAPIDLY
MOVED INLAND. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI)
DEPICTS DEEP CONVECTION STILL PERSISTING, HOWEVER, IS
INCREASINGLY BEING SHEARED TO THE SOUTHWEST. THE MSI, ANIMATED RADAR
DATA, AND ANALYSIS OF WIND OBSERVATIONS ACROSS THE REGION PROVIDED
HIGH CONFIDENCE TO THE INTIAL POSITION. THE INITIAL INTENSITY OF
80 KNOTS IS ASSESSED WITH MEDIUM CONFIDENCE BASED ON AN RJTD
OVER LAND DVORAK CURRENT INTENSITY ESTIMATE OF T5.0, AND MSLP
OBSERVATIONS SURROUNDING THE CENTER REPORTING 986MB.
THE SYSTEM IS FORECASTED TO CONTINUE MOVING RAPIDLY INLAND TO
THE WEST-NORTHWEST ALONG THE SOUTHERN PERIPHERY OF A DEEP-LAYER
SUBTROPICAL RIDGE (STR) TO THE NORTH AND ULTIMATELY DISSIPATING
OVER SOUTHEAST ASIA NO LATER THAN TAU 36. THIS IS THE FINAL WARNING
ON THIS SYSTEM BY THE JOIN TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM
WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.
REFER TO TROPICAL STORM 19W (KULAP) WARNINGS (WTPN31 PGTW)
FOR SIX-HOURLY UPDATES.
//
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