If the local Tropical Cyclone Warning Signal No. 8 or above or the Black Rainstorm Signal is in force at the following hours, classes will be suspended as below:
| Signal in force at | Sessions/Periods suspended |
| 7:00 a.m. | 8:30 a.m. – 1:15 p.m. |
| 12:00 noon | 1:30 p.m. – 6:15 p.m. |
| 5:00 p.m. | from 6:30 p.m. onward |