07/03←  2025-07-04 CWB twsfc map  →07/05

2025-07-04 00 UTC	2025-07-04 03 UTC
2025-07-04 06 UTC	2025-07-04 09 UTC
2025-07-04 12 UTC	2025-07-04 15 UTC
2025-07-04 18 UTC	2025-07-04 21 UTC