The monsoon trough is now running up the west coast of Central America. Also a trough of low pressure has formed off the east coast. Last night an area of rain moved northward along the coast of Belize. A storm cell must have formed over Belmopan and I measured 66 mm (2.6") of rain this morning which was a surprise since I did not hear any heavy rain all night. Conditions in the Caribbean have changed dramatically over the past 36 hours. The dry air is rapidly being replaced with rain clouds.