Hurricane Harvey strengthens to Category 4; Trumps signs disaster declaration

FILE: Shows a NASA satellite image of Hurricane Harvey hours before it touches down on the Texas coast. (Credit: NASA)

HOUSTON (AP) — President Donald Trump says he has signed a disaster declaration for Texas as Hurricane Harvey verges on the middle Texas coast. Trump announced his declaration in a posting on his Twitter account.

At 9 p.m., the National Hurricane Center said the storm was "almost onshore" with 130 mph sustained winds.

6:05 p.m.

The National Hurricane Center says Hurricane Harvey has strengthened to a Category 4 storm.

The center says Harvey has sustained wind speeds of 130 mph (209 kph) as the powerful storm churns off the Texas coast. Forecasters are labeling it a "life-threatening storm."

The storm quickly grew Thursday from a tropical depression into a Category 1 hurricane, and then developed into a Category 2 storm early Friday. By Friday afternoon, it had become a Category 3 storm before strengthening to a Category 4. It's forecast to make landfall in Texas late Friday or early Saturday.

The storm is 45 miles (72 kilometers) east of Corpus Christi.