Advisories

WTIO31 PGTW 280900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 02B (ARNAB) WARNING NR 010//
RMKS/
1. TROPICAL CYCLONE 02B (ARNAB) WARNING NR 010    
   01 ACTIVE TROPICAL CYCLONE IN NORTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   280600Z --- NEAR 16.4N 81.8E
     MOVEMENT PAST SIX HOURS - 045 DEGREES AT 03 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF 
     SATELLITE, RADAR AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 000 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            000 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            065 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            000 NM NORTHWEST QUADRANT
   REPEAT POSIT: 16.4N 81.8E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   281800Z --- 17.8N 81.9E
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
                            055 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            000 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 355 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   290600Z --- 19.9N 81.7E
   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: 355 DEG/ 10 KTS
    ---
   36 HRS, VALID AT:
   291800Z --- 21.9N 81.6E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
280900Z POSITION NEAR 16.7N 81.8E.
28OCT26. TROPICAL CYCLONE 02B (ARNAB), LOCATED APPROXIMATELY 527
NM SOUTHWEST OF KOLKATA, INDIA, HAS TRACKED NORTHEASTWARD AT 03
KNOTS OVER THE PAST SIX HOURS. AS TROPICAL CYCLONE (TC) 02B APPROACHED 
LAND THIS MORNING, IT RAPIDLY DECELERATED, AND TURNING SOUTHWESTWARD, 
DUE TO THE COMBINED EFFECTS OF LAND INTERACTION AND BINARY INTERACTION 
WITH INVEST 90B TO THE EAST. THE SYSTEM SKIRTED THE COAST OF THE 
GODAVARI RIVER DELTA, REACHING A POSITION SOUTHWEST OF NARSAPUR BY 
0000Z. SINCE THAT TIME, THE SYSTEM HAS SLOWLY DRIFTED NORTHWARD AND IS 
NOW SITUATED ALONG THE COASTLINE, IN THE VICINITY OF NARSAPUR BASED ON 
ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) AND RADAR DATA FROM 
IMD.  SURFACE OBS FROM NARSAPUR REPORT LIGHT WINDS, AND MEAN SEA LEVEL 
PRESSURE OF 988MB, WHICH SUPPORTS THE INITIAL INTENSITY OF 55 KNOTS 
WITH MEDIUM CONFIDENCE. NOW THAT INVEST 90B HAS MADE LANDFALL AND IS 
MOVING RAPIDLY NORTHWESTWARD INTO INTERIOR INDIA, 02B SHOULD START 
LIFTING NORTHWARD, MOVING ALONG THE WESTERN SIDE OF THE SUBTROPICAL 
RIDGE (STR) TO THE EAST. 02B WILL CONTINUE TO STEADILY WEAKEN OVER THE 
NEXT 36 HOURS, BEFORE DISSIPATING OVER NORTHEASTERN INDIA.
THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON
WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR
SIGNS OF REGENERATION. MINIMUM CENTRAL PRESSURE AT 280600Z IS 988
MB.//
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