06/15←  2025-06-16 CWB twsfc map  →06/17

2025-06-16 00 UTC	2025-06-16 03 UTC
2025-06-16 06 UTC	2025-06-16 09 UTC
2025-06-16 12 UTC	2025-06-16 15 UTC
2025-06-16 18 UTC	2025-06-16 21 UTC