Forming as the twenty-fourth named storm of the 2017 typhoon season, Haikui developed as a tropical depression to the east of Samar on November 9.
Traversing some Philippine islands, the system gradually intensified into a named tropical storm by November 10.
[1] After some expanding, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert.
[2] By 00:00 UTC of November 9, the PAGASA began tracking on the system, giving the local name Salome.
[4] The Japan Meteorological Agency (JMA) followed suit a few hours later, as they classified it as a tropical depression with winds of 55 km/h (35 mph).
[5] Satellite imagery found a consolidating low-level circulation center (LLCC) with convective banding wrapping into it.
[7] Around the same time it was named, the PAGASA indicated that Haikui made landfall in San Juan, Batangas,[8] cutting the Ticao Pass.
[11] By November 10, the JTWC finally upgraded Haikui to a tropical storm after a sudden burst of deep convection occurred near its center.
[17] On November 9, as soon as the PAGASA started issuing advisories on the system, Tropical Cyclone Signal #1 was raised to 15 provinces over in the Bicol Region, Western Visayas and Calabarzon.
[18] The National Disaster Risk Reduction and Management Council (NDRRMC) had immediately announced to suspend all trips from the Batangas Port.
[19] Any other tropical cyclone signals were also extended to Central Luzon (Region III) and provinces of Zambales.
[28] Nine villages in Batangas also experienced power outages as well as rising water levels of the Calumpang River, prompting nearby residents to prepare and evacuate.