JMA 06Z天氣圖判定消散，而NRL則持續編號

LLCC尚在，NRL上午復編，風場持續掃出20-25kts風力，JMA維持TD

      (1) AN AREA OF CONVECTION (REMNANTS 01W) PREVIOUSLY LOCATED NEAR
10.7N 151.4E IS NOW LOCATED NEAR 11.1N 151.6E, APPROXIMATELY 426 NM EAST-
SOUTHEAST OF GUAM. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS A
BROAD, RAGGED, AND PARTLY-EXPOSED LOW-LEVEL CIRCULATION (LLC) WITH
DISORGANIZED CONVECTION SHEARED EASTWARD OF THE LLC. A 240335Z AMSR2
WINDSPEED IMAGE INDICATES A SMALL PATCH OF 18-KT PIXELS UNDER THE
CONVECTION AND 10-15KTS AROUND THE LLC. ENVIRONMENTAL ANALYSIS REVEALS
MARGINAL CONDITIONS WITH STRONG POLEWARD OUTFLOW, LOW (5-10KT) VWS OVER
THE LLC AND WARM (28-29C) SST OFFSET BY DRY AIR ENTRAINMENT AND STRONG
(25KT+) VWS JUST 30NM TO THE NORTH. GLOBAL MODELS ARE IN AGREEMENT THAT
THE SYSTEM WILL HAVE NO SIGNIFICANT DEVELOPMENT AS IT TRACKS WESTWARD
OVER THE NEXT 24-48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR
1006 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW.

補
JMA昨日12Z停編

台風第1号(サンヴー)
2023年04月22日21時45分発表
22日21時の実況
種別        熱帯低気圧
大きさ        -
強さ        -
存在地域        マーシャル諸島
中心位置        北緯10度00分 (10.0度)
東経155度00分 (155.0度)
進行方向、速さ        西 ゆっくり
中心気圧        1004 hPa

JTWC微幅上調風速至40kts，並預測+36hr後減弱為TD

TPPN10 PGTW 201148

A. TROPICAL STORM 01W (SANVU)

B. 20/1130Z

C. 9.72N

D. 156.61E

E. FIVE/GK2A

F. T2.5/2.5/D0.5/24HRS  STT: D0.5/03HRS

G. IR/EIR

H. REMARKS: 38A/PBO SBC/ANMTN. CNVCTN WRAPS .45 ON LOG10 SPIRAL
YIELDING A DT OF 2.5. MET AGREES. PT YIELDS 3.0. DBO DT.

I. ADDITIONAL POSITIONS: NONE


   CVACH

WTPN31 PGTW 201500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL STORM 01W (SANVU) WARNING NR 005//
RMKS/
1. TROPICAL STORM 01W (SANVU) WARNING NR 005   
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   201200Z --- NEAR 9.7N 156.5E
     MOVEMENT PAST SIX HOURS - 320 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 010 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   REPEAT POSIT: 9.7N 156.5E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   210000Z --- 10.6N 155.4E
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 295 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   211200Z --- 11.0N 154.5E
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 295 DEG/ 05 KTS
    ---
   36 HRS, VALID AT:
   220000Z --- 11.4N 153.6E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 48 HR POSIT: 295 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   221200Z --- 11.9N 152.4E
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   VECTOR TO 72 HR POSIT: 285 DEG/ 06 KTS
    ---
   72 HRS, VALID AT:
   231200Z --- 12.5N 150.0E
   MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   VECTOR TO 96 HR POSIT: 280 DEG/ 05 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   241200Z --- 12.9N 148.1E
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER

2023首颱珊瑚形成