Tropical Storm Gonzalo

Tropical Storm Gonzalo is packing 45-kt (50-mph) winds, moving N at 10 kt (12 mph). Expected to stay over open water.

At 800 PM CVT (2100 UTC), the center of Tropical Storm Gonzalo was located near latitude 16.2 North, longitude 22.7 West. Gonzalo is moving toward the north near 12 mph (19 km/h). A northward to north-northwestward motion is expected through tonight, followed by a slower north-northwestward motion over the weekend. On the forecast track, the center will pass near the northeastern portion of the Cabo Verde Islands tonight and move north of the Cabo Verde Islands on Saturday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Little change in strength is expected tonight. Weakening is expected to begin by Saturday morning and continue through the weekend. Gonzalo is forecast to become a post-tropical remnant low by Sunday. Tropical-storm-force winds extend outward up to 205 miles (335 km) primarily to the northeast of the center. The official observing station on Sal in t— National Hurricane Center · public advisory 4

This is the Atlantic · 14°N–26°N, 29°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.