Subtropical storm Olga is a little stronger, spreading heavy rains across Puerto Rico

Subtropical Storm Olga strengthened slightly early Tuesday, spreading heavy rains across Puerto Rico, forecasters said.

At 1 a.m. EST (0600 GMT), Olga's center was about 20 miles (32 kilometers) west-northwest of San Juan, Puerto Rico, and about 240 miles (386 kilometers) east of Santo Domingo in the Dominican Republic.

It was moving toward the west near 18 mph (29 kph) and this general motion should continue for the next day or so. On this track the center will move along the northern coast of Puerto Rico early Tuesday morning. It will be near or over the Dominican Republic later in the day, the National Hurricane Center said.

Olga had maximum …