Tag Archives: Potential Tropical Cyclone Fifteen

Potential Tropical Cyclone Fifteen Prompts Watch for Belize

A disturbance over the Northwest Caribbean Sea designated as Potential Tropical Cyclone Fifteen prompted the issuance of a Tropical Storm Watch for a portion of the coast of Belize and the Yucatan Peninsula.  At 8:00 p.m. EDT on Friday the center of Potential Tropical Cyclone Fifteen was located at latitude 17.5°N and longitude 85.7°W which put the center about 165 miles (265 km) east of Belize City, Belize.  Potential Tropical Cyclone Fifteen was moving toward the west-northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1005 mb.

A Tropical Storm Watch is in effect for the portion of the coast from Belize, City, Belize to Tulum, Mexico.

A tropical disturbance over the Northwest Caribbean Sea exhibited more organization on Friday evening and the U.S. National Hurricane Center designated the system as Potential Tropical Cyclone Fifteen.  The tropical disturbance had a large counterclockwise circulation, but there was not a well defined low level center of circulation.  Thunderstorms were occurring in bands in the eastern and northern parts of the tropical disturbance.  Bands in the southern and western parts of the disturbance consisted primarily of showers and lower clouds.

Potential Tropical Cyclone Fifteen will move through an environment somewhat favorable for the formation of a tropical cyclone during the next 24 hours.  The tropical disturbance will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the western end of an upper level ridge over the Caribbean Sea.  The upper level ridge will produce southeasterly winds that will blow toward the top of the tropical disturbance.  Those winds will cause moderate vertical wind shear.  The wind shear will inhibit the formation of a tropical cyclone.  However, the wind shear may not be enough to prevent the formation of a tropical cyclone.  Potential Tropical Cyclone Fifteen could strengthen to a tropical storm on Saturday.

Potential Tropical Cyclone Fifteen will move around the southern side of a high pressure system over the eastern United States.  The high pressure system will steer the tropical disturbance toward the west-northwest during the nest 24 hours.  On its anticipated track, Potential Tropical Cyclone Fifteen will make landfall on the coast of Belize on Saturday afternoon.

Potential Tropical Cyclone Fifteen will bring gusty winds and heavy rain to parts of Belize and the Yucatan Peninsula.  Heavy rain is likely to cause flash floods in some locations.

Low Pressure System over Caribbean Sea Prompts Tropical Storm Watches for Jamaica and Grand Cayman

A low pressure system over the central Caribbean Sea prompted the issuance of Tropical Storm Watches for Jamaica and Grand Cayman on Sunday afternoon. The National Hurricane Center designated the low pressure system as Potential Tropical Cyclone Fifteen. At 5:00 p.m. EDT on Sunday the center of Potential Tropical Tropical Cyclone Fifteen was located at latitude 15.7°N and longitude 73.6°W which put it about 265 miles (425 km) southeast of Kingston, Jamaica. It was moving toward the west-northwest at 10 m.p.h. (16 km/h). The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h). The minimum surface pressure was 1005 mb.

Tropical Storm Watches were issued for Jamaica and Grand Cayman.

Reconnaissance planes from the U.S. Air Force Reserve and NOAA found winds to tropical storm force in the northern side of a low pressure system over the central Caribbean Sea on Sunday. Based on data collected by the planes, the National Hurricane Center designated the low pressure system as Potential Tropical Cyclone Fifteen. There was a large counterclockwise rotation around the low pressure system. Several small counterclockwise swirls were revolving around the larger low pressure system. Winds to tropical storm force extended out 115 miles (185 km) in the northern side of Potential Tropical Cyclone Fifteen. The winds in the southern half of the low pressure system were blowing at less than tropical storm force.

Potential Tropical Cyclone Fifteen will move through an environment favorable for intensification during the next 36 hours. It will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the northwestern part of an upper level ridge over the eastern two thirds of the Caribbean Sea. The upper level ridge will produce southwesterly winds that will blow toward the top of Potential Tropical Cyclone Fifteen. Those winds will cause some vertical wind shear, but the wind shear will not be enough to prevent intensification. Potential Tropical Cyclone Fifteen will be designated as a tropical storm if more thunderstorms form closer to the center of circulation. It could eventually strengthen to a hurricane later this week.

Potential Tropical Cyclone Fifteen will move south of a high pressure system over the western Atlantic Ocean. The high pressure system will steer Potential Tropical Cyclone Fifteen toward the west-northwest during the next 36 hours. On its anticipated track, the center of Potential Tropical Cyclone Fifteen will pass south of Jamaica on Monday. It will bring gusty winds and locally heavy rain to Jamaica. Heavy rain could cause flash floods in some locations.