老農民版夜神月

  副熱帶風暴  
編號：無
名稱：Potira

  基本資料  
形成日期　　：2021 年 04 月 19 日 08 時
命名日期　　：2021 年 04 月 20 日 08 時
消散日期　　：2021 年 04 月 26 日 08 時
登陸地點　　：無

  巔峰時期資料  
近中心最強風速 ：35  kt ( SS )
海平面最低氣壓： 1006 百帕

  討論帖圖片  

以上資料來自：CHM、颱風論壇整理製作

dom

00Z命名Potira

WWST02 SBBR 201120
1 31 05 02 12 20
SECURITE
WARNING NR 324/2021
SPECIAL WARNING
ISSUED AT 1030 UTC – TER - 20/ABR/2021
SUBTROPICAL STORM "POTIRA" WITH ESTIMATED CENTRAL PRESSURE OF 1006
HPA AT 26S041.5W, MOVING TO EAST AND AFTER TO SOUTHWEST/SOUTH WITH
ESTIMATED MAXIMUM WINDS 47 KT ON CYCLONE SOUTH SECTOR.
FORECAST: CYCLONIC WIND FORCE 8/10 (34-55 KNOTS) WITH GUSTS WITHIN
100NM AROUND THE CENTER AND WIND W/SW FORCE 7 (28-33 KNOTS) NEAR THE
COAST OVER AREA CHARLIE EAST OF 046W AND AREA DELTA SOUTH OF 21S.
ROUGH/VERY ROUGH SEA ASSOCIATED.
ESTIMATED POSITION:
210000 UTC: 25.1S039.1W - 1006 HPA - ESTIMATED MAXIMUM SUSTAINED
WIND 35-40 KNOTS - SUBTROPICAL STORM
211200 UTC: 24.9S038.2W -1004 HPA – ESTIMATED MAXIMUM SUSTAINED
WIND 35-45 KNOTS - SUBTROPICAL STORM
220000 UTC: 26.2S037.6W -1004 HPA – ESTIMATED MAXIMUM SUSTAINED
WIND 40-50 KNOTS - SUBTROPICAL STORM
221200 UTC: 27.1S037.7W -1000 HPA – ESTIMATED MAXIMUM SUSTAINED
WIND 40-55 KNOTS - SUBTROPICAL STORM
230000 UTC: 27.2S038.6W -1002 HPA – ESTIMATED MAXIMUM SUSTAINED
WIND 40-55 KNOTS - SUBTROPICAL STORM
VALID UNTIL 230000 UTC.

老農民版夜神月

巴西海軍將其降格為SD(副熱帶低壓)

WARNING NR 356/2021
SPECIAL WARNING
ISSUED AT 1330 UTC - SAT - 24/APR/2021
SUBTROPICAL DEPRESSION "POTIRA" WITH ESTIMATED CENTRAL PRESSURE OF
1006 HPA AT 26S036W, MOVING TO EAST/SOUTHEAST WITH ESTIMATED MAXIMUM
WINDS 25/30 KT ON CYCLONE SOUTH SECTOR.
ESTIMATED POSITION:
250000 UTC: 27S034.5W - 1008 HPA – ESTIMATED MAXIMUM SUSTAINED WIND
25-30 KNOTS – SUBTROPICAL DEPRESSION
251200 UTC: 28S033.5W -1008 HPA – ESTIMATED MAXIMUM SUSTAINED WIND
25-30 KNOTS - SUBTROPICAL DEPRESSION
VALID UNTIL 260000 UTC.
THIS WARNING REPLACES THE WARNING NR 355/2021.
WARNING NR 357/2021

dom

巴西海軍於00Z撤編