03/10←  2025-03-11 CWB twsfc map  →03/12

2025-03-11 00 UTC	2025-03-11 03 UTC
2025-03-11 06 UTC	2025-03-11 09 UTC
2025-03-11 12 UTC	2025-03-11 15 UTC
2025-03-11 18 UTC	2025-03-11 21 UTC