HOUSTON, United States (AFP) — Tropical Storm Nicholas gained strength as it tracked up the Texas coast hours before its expected landfall late Monday, threatening to unleash a dangerous deluge of rainfall on the southern US state, meteorologists warned. At 2100 GMT Nicholas was located some 70 miles (115 kilometers) south of Port O’Connor on the Gulf of Mexico, with Texas’s largest city of Houston squarely in the storm’s sights, according to the National Hurricane […]