ropical Storm Nando, internationally known as Ragasa, is intensifying over the Philippine Sea and could reach typhoon strength within the next 24 to 36 hours as it tracks toward the northern Philippines and Taiwan.
Meteorologists warn that the system is moving through a stretch of extremely warm ocean waters with low wind shear, conditions that can lead to rapid intensification — a phenomenon often referred to as the “Philippine Sea effect.” Forecast models suggest Nando could become not only a strong typhoon but potentially a super typhoon before the middle of next week.
Current Situation
As of Saturday evening, Nando was located east of Luzon with maximum sustained winds of about 85 kilometers per hour and gusts up to 105 kph, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). The storm was creeping northwest at 10 kph, a slow speed that allows the system to better organize its circulation.
Satellite imagery shows deep convection wrapping around the center, with signs of an eye beginning to clear. International forecast agencies, including the Japan Meteorological Agency and the U.S. Joint Typhoon Warning Center, agree that the system is poised for intensification.
Track Uncertainty
The storm’s exact path remains uncertain. Some forecast models project a more northward track that would bring the center closer to Taiwan, while others pull the system westward toward northern Luzon. Most guidance currently suggests a path near or just north of the Batanes and Babuyan island groups late Monday into Tuesday.
The storm’s eventual direction will depend on the subtropical ridge located over the western North Pacific. If Nando drifts far enough north, the ridge may block its progress and force it on a more westerly course.
“We still have a range of possibilities,” said one meteorologist at PAGASA. “But whether it crosses Batanes directly or passes north toward Taiwan, this will be a strong storm that needs to be taken seriously.”
Impacts in the Philippines
- Northern Luzon: Even if the storm center remains offshore, outer rainbands are expected to sweep across Cagayan, Ilocos Norte and other northern provinces. Rainfall totals could reach 100 to 300 millimeters, raising the risk of flash flooding and landslides, especially in mountainous terrain. Strong gusts are possible along exposed coastlines.
- Batanes and Babuyan Islands: These island groups are most likely to face the brunt of the storm, with the potential for destructive winds, storm surge and widespread infrastructure damage. Residents have been urged to prepare for possible evacuations.
- Central and Southern Luzon: While not in the direct path, inflow from the southwest monsoon enhanced by Nando could bring periods of heavy rain to Metro Manila, Central Luzon and even Palawan.
Regional Threats
- Taiwan: The system poses a growing risk to Taiwan, where government officials are already preparing for possible landfall or near-miss conditions by midweek. Torrential rainfall, strong winds and coastal flooding are possible in southern and eastern regions.
- Hong Kong and South China Coast: While the probability of direct landfall here is lower, a stronger typhoon moving west into the South China Sea could generate rough seas and rain squalls by Wednesday or Thursday.
Looking Ahead
International models, including the European Centre for Medium-Range Weather Forecasts (ECMWF) and the U.S.-based Global Forecast System (GFS), both indicate that Nando will reach typhoon strength by late Sunday. Some runs show peak intensity exceeding 200 kph winds as it nears Batanes.
However, forecasters caution that uncertainty remains until the storm’s low-level center is fully established. Reconnaissance aircraft, which often provide critical storm data in the Atlantic, are not available in this region, leaving meteorologists reliant on satellite estimates.
“This is the type of storm I don’t hype unless the data supports it,” said Robert Speta, meteorologist for Western Pacific Weather. “But with the setup we’re seeing, this could be a very serious event for the Batanes Islands and possibly Taiwan. Preparations should be underway now.”
PAGASA has raised initial Tropical Cyclone Wind Signals for northern Luzon, warning residents of strong winds and heavy rain in the coming days. The agency stressed that official forecasts and evacuation orders should be closely followed.
Key Takeaway
Nando is strengthening and could become a violent typhoon. Impacts are expected across northern Luzon, Batanes, Taiwan and possibly the South China coast. Preparations should be made for damaging winds, life-threatening storm surge and widespread flooding.