Tropical storm hits Mexico coast, quickly weakens

This NOAA satellite image taken Saturday, August 18, 2012 at 1:45 PM EDT shows clouds associated with a tropical wave of low pressure moving over Hispaniola. This system kicks up a few light showers, but no heavy rainfall. To the north, the tail end of a front lingers over the Bahamas and Florida, creating shower and thunderstorm activity. In the western Caribbean Sea, an area of low pressure produces moderate to heavy rains as it slowly advances westward into Costa Rica and Panama. (AP PHOTO/WEATHER UNDERGROUND)Tropical Storm Helene quickly weakened into a tropical depression Saturday after moving ashore on Mexico's Gulf Coast, bringing strong rains but few reports of damage.