Super Typhoon Ragasa caused a significant storm surge in Hong Kong, impacting Tung Wan Beach, as reported by user @volcaholic1 on X between 8:35 AM and 9:04 AM UTC on September 24th, 2025. The user shared visuals and commentary indicating severe conditions. This development in Hong Kong occurred during a period when a large sinkhole opened in front of the entrance to Vajira Hospital in Bangkok, Thailand, between 6:06 AM and 8:34 AM UTC on the same day, with the hole continuing to collapse, according to previous reports. The Bangkok incident was initially reported by user @volcaholic1 on X. Earlier in the morning, between 4:06 AM and 6:06 AM UTC, a significant storm surge associated with Typhoon Ragasa had already struck a hotel in Hong Kong, described as a "huge wave of storm surge" by user @VortixWx on X. The Hong Kong Observatory had previously issued its highest level Hurricane Signal, No. 10, due to the storm's intense rain and destructive winds, which also impacted southern China. Separately, Tropical Storm Opong intensified over the Philippine Sea, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).