There is currently a tropical storm Hanna located on the northeast border with Honduras and is forecast to move west-southwest. This track will include much of Nicaragua with heavy rains and the potential for flooding. Due to the fact that the ground is already saturated this increases the chances for mudslide and dangerous flooding and power outages. The winds are decreasing over land but the rain fall is expected to be very heavy in affected.
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If you are interested, Accuweather.com punch in Nicaragua