转眼之间眼温正了

LG+OW

报点参考帧基本上WMG+LG，不知道老J怎么看这个55kt

CDO爆出来一点点CDG对流

SH, 20, 2025022400, , BEST, 0, 184S, 1046E, 65, 995, TY,
SH, 20, 2025022406, , BEST, 0, 190S, 1036E, 75, 985, TY,

IDW24000
Australian Bureau of Meteorology
Tropical Cyclone Warning Centre
TROPICAL CYCLONE INFORMATION BULLETIN
Issued at 2:42 pm WST on Monday 24 February 2025
Tropical Cyclone Bianca (Category 2) was located at 2:00 pm AWST near 19.1S
103.8E, that is 1130 km west northwest of Exmouth and 1210 km west northwest of
Carnarvon and moving southwest at 20 kilometres per hour.
Tropical Cyclone Bianca (21U) is located in the Indian Ocean, well to the
west-northwest of Exmouth, and is moving towards the southwest. Bianca, a
category 2 system, continues to strengthen and is likely to become a severe
tropical cyclone. On Tuesday, it is expected to track south-southwest,
remaining well offshore from the Western Australian coast. By Wednesday, it is
forecast to begin weakening.
No direct impacts are expected at any Australian mainland or Island communities.
The next Information Bulletin will be issued at 9:00 pm AWST Monday 24 February.

TXXS24 KNES 240637
TCSSIO
A. 20S (BIANCA)
B. 24/0530Z
C. 19.1S
D. 103.6E
E. ONE/HIMAWARI-9
F. T4.5/4.5
G. IR/EIR/VIS
H. REMARKS...OW EYE SURROUNDED BY LG RING AND EMBEDDED IN MG YIELDS A
DT OF 4.5. THE MET IS 4.5 BASED ON A 24HR RAPID DEVELOPING TREND. THE
PT IS 4.5. THE FT IS BASED ON THE DT.
I. ADDL POSITIONS
NIL
...GATLING

对流爆得还算均匀，眼已有不错的清空度，中高空环境是不错的

东北侧断了

眼内WMG但是东侧裂开了VIS大骗子

全球热带气旋监测公报
预报：宋佳凝 签发：向纯怡 2025 年 02 月 24 日 18 时
“比安卡”向南偏西方向移动
时 间：24日14时（北京时）
海 域：澳大利亚附近海域
命 名：“比安卡”，BIANCA
中心位置：南纬19.1度、东经103.8度
强度等级：二级热带气旋
最大风力：11级（30米/秒，相当于我国的强热带风暴级）
中心气压：989百帕
参考位置：科科斯群岛东南方向约1070公里的洋面上
变化过程：过去24小时，“比安卡”由8级加强到11级
预报结论：“比安卡”将以每小时15公里左右的速度向南偏西方向移动，强度变化不大。

图3 卫星红外监测图像（北京时间2025年02月24日14时00分）

TPXS10 PGTW 240903
A. TROPICAL CYCLONE 20S (BIANCA)
B. 24/0830Z
C. 19.28S
D. 103.32E
E. ONE/GK2A
F. T4.0/5.0/D1.5/24HRS STT: W1.0/03HRS
G. IR/EIR/VIS/MSI
H. REMARKS: 03A/PBO EYE/ANMTN. WMG EYE SURROUNDED BY OW YIELDS AN
E# AND DT (NO EYE ADJUSTMENT) OF 4.0. MET AND PT AGREE. DBO DT.
I. ADDITIONAL POSITIONS: NONE
PETERSEN