Hurricane Irene
The TRMM satellite passed over Irene when it was a tropical storm on Aug. 21 at 0024 UTC (8:24 p.m. EDT Aug. 20). Data collected with this orbit showed that Irene contained numerous powerful thunderstorms with TRMM's Precipitation Radar (PR) revealing that some thunderstorm towers near the center of the storm were reaching to heights above 15 km, or about 9.3 miles. NASA/SSAI, Hal Pierce

Hurricane Irene sustained 80 mph winds as the storm rocked the area just off the northeastern coast of Hispaniola. The National Hurricane Center expected Irene to continue gaining momentum over the next few days but by Thursday, forecasters said that it could be a major Category 3 hurricane with winds up to 115 mph.

The storm continues to threaten the Atlantic coast from South Florida to the Carolinas.

The most relentless rains and winds remained north of Hispaniola and the threat of deadly flooding has subsided. Despite this, Haiti warned its residents to prepare for evacuation.

The Dominican Republic opened a dam to relieve the Artibonite River, which has historically caused its banks to swell during past storms of this nature, Haitian radio reported.

In Puerto Rico, watches and warnings were retracted as Irene pulled away.

At 11 a.m. the National Hurricane Center said that Irene was stronger than expected.

The National Hurricane Center significantly raised expectations about Irene's rage, projecting that it will become a major Category 3 hurricane with 115 mph winds by Thursday when it approaches the Central Bahamas.

Forecasters have maintained that the entire state of Florida could be in danger and that residents should monitor Irene closely. The margin of error on long-term forecasts is 200 to 250 miles and a tremble may bring her to shore.

Many computer models has moved Irene's projected path eastwards over the last two days, suggesting that Irene could distress the coasts of George, South Carolina, and North Carolina.