03/29←  2025-03-30 CWB twsfc map  →03/31

2025-03-30 00 UTC	2025-03-30 03 UTC
2025-03-30 06 UTC	2025-03-30 09 UTC
2025-03-30 12 UTC	2025-03-30 15 UTC
2025-03-30 18 UTC	2025-03-30 21 UTC