Typhoon Choi-Wan

Typhoon Choi-Wan is packing 80-kt (90-mph) winds, moving NNE at 9 kt (10 mph). Expected to stay over open water.

TYPHOON 26W (CHOI-WAN), LOCATED APPROXIMATELY 252 NM NORTH OF SAIPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 030600Z IS 969 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 030600Z IS 32 FEET.— Joint Typhoon Warning Center · warning 14

Choi-Wan tracks over open water — no coast is in the outlook. Along its path, our forecast reads:

This is the West Pacific · 18°N–44°N, 144°E–158°E. Choi-Wan’s forecast track is the dotted spine — the labelled dots mark its position each day. Every cell is shaded by how many hours it spends inside Choi-Wan’s gale-force (≥34 kt · 39 mph) wind across the whole forecast, the damaging core counted double.

Read it two ways at once. Colour is the total — the hours of gale-force wind a place piles up. A slow storm writes its danger in duration, not in any single gust, so the longer the wind sits over a place, the deeper its colour. Opacity is uniform here — this basin publishes no wind-speed-probability field, so the map claims no confidence it has not earned.