07/01←  2025-07-02 CWB twsfc map  →07/03

2025-07-02 00 UTC	2025-07-02 03 UTC
2025-07-02 06 UTC	2025-07-02 09 UTC
2025-07-02 12 UTC	2025-07-02 15 UTC
2025-07-02 18 UTC	2025-07-02 21 UTC