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Tropical Storm Maria (14L) Expected to Increase in Forward Speed – September 12th, 2011

18.5N 67.9W

September 12th, 2011 Category: Tropical Storms

Tropical Storm Maria (14L) - September 11th, 2011

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Track of Tropical Storm Maria (14L) - September 12th, 2011 © Univ. of Wisconsin

Track of TS 14L

At 11:00 AM AST (1500 UTC) the center of Tropical Storm Maria (14L) was located near latitude 20.7 north, longitude 67.3 west.

Maria is moving toward the west near 2 mph (4 km/h). A faster motion toward the west-northwest is expected later today, followed by a turn toward the northwest and a further increase in forward speed by early Tuesday.

Maximum sustained winds have decreased to near 50 mph (85 km/h) with higher gusts. Little change in strength is forecast during the next 48 hours. Tropical storm force winds extend outward up to 200 miles (325 km) mainly to the north and east of the center. A sustained wind of 40 mph (65 km/h) and a peak gust of 49 mph (79 km/h) were recently reported. Estimated minimum central pressure is 1006 mb (29.71 inches).

Hazards affecting land include rainfall and wind. Maria is expected to produce total rain accumulations of 2 to 4 inches, with isolated maximum amounts of 6 inches over the Virgin Islands, Puerto Rico, and portions of the northern Leeward Islands through Tuesday. Wind gusts to tropical storm force are possible, especially over higher terrain in the Virgin Islands, Puerto Rico, and the extreme northern Leeward islands today.

Low Pressure System in Caribbean Sea Situated by Hispaniola

18.1N 69.8W

September 13th, 2010 Category: Tropical Storms

Low Pressure System Near Hispaniola - September 12th, 2010

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Track of Low Pressure System - September 12th, 2010 © Univ. of Wisconsin

Track of Low Pressure System

Aircraft data from NOAA and NASA research missions within the area of disturbed weather over the central Caribbean Sea suggest that the system may not have a well-defined center of circulation.

However, the disturbance is still producing a large and disorganized area of showers and thunderstorms which could cause locally heavy rainfall in portions of Puerto Rico, Hispaniola, Jamaica and Cuba during the next day or two. These rains could cause life-threatening flash floods and mud slides, especially in mountainous terrain.

There is a medium chance (40 percent) that this system could become a tropical cyclone during the next 48 hours as it moves west-northwestward at 10 to 15 mph toward the northwestern Caribbean Sea.

Tropical Depression Erika Weakens to a Remnant Low

16.2N 65.7W

September 4th, 2009 Category: Tropical Storms

Remnants of Erika - September 3rd, 2009

Remnants of Erika - September 3rd, 2009

Enhanced image - September 3rd, 2009

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Track of Erika - September 4th, 2009 © Univ. of Wisconsin

Track of Erika

At 11:00 PM AST (0300 UTC), the center of the remnant low associated with former Tropical Depression Erika was located about 115 miles (185 km) south-southeast of San Juan, Puerto Rico and about 220 miles (360 km) southeast of Punta Cana in the Dominican Republic. Here, the coast of Venezuela can be seen south of the low.

The low is moving toward the west near 7 mph (11 km/hr). A gradual turn to the west-northwest and northwest is expected on Friday.

Maximum sustained winds are near 30 mph (45 km/hr) with higher gusts in a few squalls. The low is forecast to dissipate in a day or so. Estimated minimum central pressure is 1009 mb (29.80 inches).

The remnants of Erika are expected to produce total rainfall accumulations of 2 to 4 inches over the central and northern Lesser Antilles, Puerto Rico, and the US and British Virgin Islands, with isolated maximum amounts of 6 inches possible.

Puerto Rico

January 7th, 2009 Category: Snapshots

Puerto Rico - December 12th, 2008

Puerto Rico - December 12th, 2008

Puerto Rico is a self-governing unincorporated territory of the United States located in the northeastern Caribbean, east of the Dominican Republic and west of the Virgin Islands.

It is composed of an archipelago that includes the main island of Puerto Rico and a number of smaller islands and keys, the largest of which are Vieques, Culebra, and Mona (Amoná).

Puerto Rico has an area of 5,325 square miles (13,790 km2). The maximum length from east to west is 110 miles (180 km), and the maximum width from north to south is 40 miles (64 km).

The main island is mostly mountainous with large coastal areas in the north and south. The main mountain range is called “La Cordillera Central” (The Central Range), visible in the center of the island. An algal bloom can be seen off the northeastern coast.

Puerto Rico has 17 lakes, all man-made, and more than 50 rivers, most originating in the Cordillera Central. Rivers in the northern region of the island are typically longer and of higher water flow rates than those of the south, since the south receives less rain than the central and northern regions.

source Wikipedia

Hurricane Omar moves Northeast

October 16th, 2008 Category: Tropical Storms

Hurricane Omar - October 15th, 2008Hurricane Omar

Hurricane Omar - October 15th, 2008

Hurricane Omar strenghtened into a Category 3 storm the evening of October 15th. According to the U.S. National Hurricane Center, as of 3:00A.M. AST on October 16th it was located approximately 90km (55mi) northwest of St. Martin. It is moving northeast at 32km/h (20mph) and is expected to continue in that direction over the next few days.

Hurricane Omar - enhanced image

Hurricane Omar - enhanced image

In the main image, we can see the eastern tips of Cuba and Jamaica, as well as the Turks and Caicos islands, and parts of Haiti and the Dominican Republic as Omar moves northeast. Those islands are partially obscured by clouds due to the great amounts of precipitation still affecting the entire area. Puerto Rico, the U.S. and British Virgin Islands, Anquilla, the Netherlands Antilles and the French West Indies, on the other hand, are completely obscured by the storm.

Omar’s maximum sustained winds are 205km/h (125mph), with higher gusts. It has hurricane-force winds extending outwards 55km (35mi) from its center, and tropical storm-force winds extending 185km (115mi) from the center.

A hurricane warning is currently in effect for Puerto Rico, the U.S. and British Virgin Islands, Anquilla, the Netherlands Antilles and the French West Indies. A hurricane watch has been issued for St. Kitts and Nevis, and a tropical storm warning is in place for Montserrat, Antigua and Barbuda.

Puerto Rico, the Virgin Islands and the northern Leeward Islands could receive 125-250mm (5-10in) of rain, with a maximum amount of 500mm (20in) in some areas. Storm surges could also reach 0.6-1.8m (2-6ft).