Satellite imagery can help determine the strength, size and cohesion of a storm. The stronger a storm becomes, the more likely an eye will form in the center. When the eye looks symmetrical, that often means the storm is not encountering anything to weaken it.

A total of 35 people has been confirmed dead and four remain missing after a cruise ship capsized in Ha Long Bay, northern Vietnam's Quang Ninh province, local authorities said on Sunday.

Storm Wipha has entered the South China Sea and is gaining strength as it heads toward Vietnam’s northern coast, with landfall expected early next week.

The UAE mission in Vietnam urged citizens who are currently in the Asian country to exercise caution amid forecasts indicating that a storm is approaching. The alert is due to "forecasts indicating that Storm Wipha will enter the northwestern regions of the country,

In an official dispatch issued on July 19, the Ministry of Agriculture and Environment called on People’s Committees of provinces and cities in the northern region and along the coast from Quang Ninh to Dak Lak to closely monitor Storm Wipha’s developments and be ready in response to it.