Tropical Storm Gonzalo

Tropical Storm Gonzalo is packing 35-kt (40-mph) winds, moving NNW at 6 kt (7 mph). Expected to stay over open water.

At 800 PM CVT (2100 UTC), the center of Post-Tropical Cyclone Gonzalo was located near latitude 19.3 North, longitude 23.3 West. The post-tropical cyclone is moving toward the north-northwest near 7 mph (11 km/h) and this general motion is forecast to continue through the weekend, with a slow down and turn to the west-northwest expected by early next week. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Additional weakening is forecast, and the post-tropical cyclone is expected to dissipate over eastern Subtropical Atlantic by the early to mid portion of next week. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center. The estimated minimum central pressure is 1005 mb (29.68 inches).— National Hurricane Center · public advisory 8

This is the Atlantic · 17°N–25°N, 28°W–21°W. Gonzalo’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 Gonzalo’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 confidence — solid where the official probability of that wind is high, faint where it is only a chance. So a deep, solid cell is a place the wind will work for a long time and likely will; a pale, faint one is a brief, uncertain brush at the edge of the cone.