A stormy region in the tropics more intense than a tropical disturbance but less intense than a tropical storm. Wind speeds in a tropical depression are less than 39 mph.
Tropical cyclone with some rotary circulation at the water surface. With maximum sustained wind speeds of up to 39 miles per hour, it is the second phase in the development of a hurricane.
A tropical storm with winds reaching up to 61 km per hour; such storms develop from tropical disturbances, and may grow to become hurricanes.
An organized system of clouds and/or thunderstorms with some circulation at surface, highest winds less than 39 mph.
a tropical cyclone in which the maximum sustained surface winds are 38 miles per hour (61 kt /33 kt) or less
A closed-circulation low pressure area of tropical origin with maximum sustained winds of less than 34 knots.
A circular low pressure system of tropical origin, with winds up to 39 mph.
the weakest form of tropical cyclone, characterized by rotating bands of clouds and thunderstorms with maximum sustained winds of 38 miles (61 kilometers) per hour or less.
A closed-low pressure area with organized convection, heavy rain, and winds up to 38 mph. The first stage of hurricane development.
A tropical cyclone with winds less than 37 miles per hour(61 KPH).
A tropical cyclone which has sustained winds of 23 to 38 miles per hour (20 to 33 knots).
A circulating system of clouds and storms, with winds up to 38 miles per hour.
A tropical cyclone in which the maximum 1-minute sustained surface wind is 38 mph or less. They form from a tropical wave or tropical disturbance.
An area of low pressure, rotary circulation of clouds and winds up to 38 mph is identified.
Tropical cyclone with wind speeds between 20 and 34 knots.
A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) is 33 knot (62 km/h or 38 mph) or less.
A tropical storm with maximum sustained winds near the surface of less than 39 miles (63 kilometers) an hour
A tropical cyclone in which the maximum sustained surface wind speed is 33 knots or less (38 mph or less).
tropical cyclone with winds equal to or less than 27 knots
A tropical cyclone with winds that do not exceed 38 miles per hour.
A system with tropical characteristics with winds less than 39 mph.
Tropical mass of thunderstorms with a cyclonic wind circulation and winds between 20 and 34 knots.
A tropical cyclone with maximum sustained winds near the surface of less than 39 mph. Tropical Depressions are listed only with a number, not a name.
A tropical cyclone with maximum sustained surface winds less than 63 kilometres per hour.
Wind speed up to 33 knots (38 mph).
A tropical cyclone in which the maximum sustained surface wind speed (using the U.S. 1-minute average) is 33 kt (38 mph or 62 km/hr) or less.
A tropical cyclone with maximum sustained surface winds less than 38 mph.
tropical cyclone in which the maximum sustained surface winds are 38 miles per hour (33 knots) or less. Characteristically having one or more closed isobars, it may form slowly from a tropical disturbance or an easterly wave which has continued to organize.
A mass of thunderstorms and clouds generally with a cyclonic wind circulation of between 20 and 34 knots.
An organized group of thunderstorms often found over a tropical ocean that generates a cyclonic flow of between 37 and 63 kilometers per hour. Can develop into a hurricane.
A hurricane goes through many stages as it develops. As the air pressure drops and there are sustained winds up to 38 miles per hour, it is called a tropical depression.
Cyclone that has maximum sustained surface winds of 33 knots (38 miles per hour) or less and is located in the tropics or subtropics.