MIAMI (CBSMiami) – Hurricane hunters find Laura quite disorganized as it is expected to move across much of the greater Antilles this weekend.

At 11 p.m. Friday, Laura was 195 miles east south-east of San Juan, Puerto Rico. It had maximum sustained winds of 45 mph and was moving west north-west at 18 mph.

On the forecast track, Laura was expected near or over Puerto Rico Saturday morning, and near the northern coast of Hispaniola late Saturday and early Sunday.

Tropical-storm-force winds extend outward up to 150 miles from the center.

Some slow strengthening is forecast during the next 48 hours.

A Tropical Storm Warning is in effect for:

  • Puerto Rico, Vieques and Culebra
  • U.S. Virgin Islands
  • British Virgin Islands
  • Saba and St. Eustatius
  • St. Maarten
  • St. Martin and St. Barthelemy
  • Antigua, Barbuda, St. Kitts, Nevis, Anguilla, and Montserrat
  • Northern coast of the Dominican Republic from Cabo Engano to
    the border with Haiti

A Tropical Storm Watch is in effect for:

  • The northern coast of the Dominican Republic from Cabo Cabron to
    the border with Haiti
  • The northern coast of Haiti from Le Mole St. Nicholas to the
    border with the Dominican Republic
  • The southeastern Bahamas and the Turks and Caicos Islands

Tropical storm conditions are expected within portions of the warning area later on Friday through Saturday. Tropical storm conditions are possible within portions of the watch area Saturday night and early Sunday.

Laura is expected to produce 3 to 6 inches of rain over Puerto Rico and the Virgin Islands, the Dominican Republic, and the southern Haitian Peninsula through Sunday. Maximum amounts up to 8 inches are possible along eastern portions and the southern slopes of Puerto Rico, as well as over Haiti and the Dominican Republic. Locally heavy rainfall could lead to flash and urban flooding, as well as an increased potential for mudslides.