TXXS24 KNES 241822
TCSSIO
A. 20S (BIANCA)
B. 24/1730Z
C. 20.2S
D. 102.8E
E. ONE/HIMAWARI-9
F. T5.5/5.5
G. IR/EIR
H. REMARKS...WMG EYE IS EMBEDDED IN, AND SURROUNDED BY, LG RESULTING IN
A DT OF 5.5 AFTER ADDING 0.5 FOR AN EYE ADJUSTMENT. MET IS 4.5 BASED ON
A 24 HOUR RAPID DEVELOPMENT TREND. PT IS 5.0. THE FT IS BASED ON THE DT.
I. ADDL POSITIONS
NIL
...TURK

TPXS10 PGTW 242118
A. TROPICAL CYCLONE 20S (BIANCA)
B. 24/2030Z
C. 20.55S
D. 102.81E
E. TWO/GK2A
F. T5.0/5.5/D1.5/24HRS STT: W0.5/03HRS
G. IR/EIR
H. REMARKS: 05A/PBO IRREG EYE/ANMTN. WMG EYE SURROUNDED BY LG
YIELDS AN E# OF 5.0. ADDED 0.5 EYE ADJUSTMENT FOR LG, TO YIELD A DT
OF 5.5. MET AND PT YIELD 5.0. DBO PT.
I. ADDITIONAL POSITIONS: NONE
DESSINO

过巅峰了，12z附近应该能摸mh

话说为什么大皮鸭的云图卡在16Z不动了

TXXS24 KNES 250014
TCSSIO
A. 20S (BIANCA)
B. 24/2330Z
C. 21.0S
D. 102.5E
E. ONE/HIMAWARI-9
F. T5.5/5.5
G. IR/EIR/VIS
H. REMARKS...WMG EYE IS SURROUNDED AND EMBEDDED IN LG RESULTING IN A
DT OF 5.5 WITH 0.5 ADDED FOR EYE ADJUSTMENT. MET AND PT AGREE. THE FT
IS BASED ON THE DT.
I. ADDL POSITIONS
NIL
...KIBLER

TPXS10 PGTW 250040
A. TROPICAL CYCLONE 20S (BIANCA)
B. 24/2330Z
C. 21.04S
D. 102.53E
E. TWO/GK2A
F. T5.0/5.5/D1.5/24HRS STT: S0.0/03HRS
G. IR/EIR/VIS/MSI
H. REMARKS: 07A/PBO IRREG EYE/ANMTN. WMG EYE SURROUNDED BY LG
YIELDS AN E# OF 5.0. ADDED 0.5 EYE ADJUSTMENT FOR LG, TO YIELD A DT
OF 5.5. MET YIELDS 5.5. PT YIELDS 5.0. DBO PT.
I. ADDITIONAL POSITIONS: NONE
DESSINO

IDW24000
Australian Bureau of Meteorology
Tropical Cyclone Warning Centre
TROPICAL CYCLONE INFORMATION BULLETIN
Issued at 8:39 am WST on Tuesday 25 February 2025
Severe Tropical Cyclone Bianca (Category 4) was located at 8:00 am AWST near
21.0S 102.5E, that is 1210 km west of Exmouth and 1220 km west northwest of
Carnarvon and moving south southwest at 18 kilometres per hour.
Severe Tropical Cyclone Bianca (21U), a category 4 system, is located in the
Indian Ocean, well to the west of Exmouth, and is moving towards the south
southwest. Bianca is currently at its peak intensity, but weakening is expected
during Tuesday as conditions become less favourable, with the system likely to
fall below tropical cyclone strength on Wednesday while remaining well west of
the state.
No direct impacts are expected at any Australian mainland or Island communities.
The next Information Bulletin will be issued at 3:00 pm AWST Tuesday 25
February.

20S BIANCA 250225 0000 21.1S 102.5E SHEM 95 958

20S BIANCA 250225 0000 21.1S 102.5E SHEM 100 962

全球热带气旋监测公报
预报：柳龙生 签发：向纯怡 2025 年 02 月 25 日 10 时
“比安卡”加强为四级强热带气旋
时 间：25日08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21.0度、东经102.5度
强度等级：四级强热带气旋
最大风力：14级（45米/秒，相当于我国的强台风级）
中心气压：958百帕
参考位置：科科斯群岛南偏东方向约1150公里的洋面上
变化过程：过去24小时，“比安卡”由10级加强到14级
预报结论：“比安卡”将以每小时15-20公里的速度向偏南方向移动，强度逐渐减弱。

图3 卫星红外监测图像（北京时间2025年02月25日08时00分）