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Tropical Storm Hanna Pops-Up in the Caribbean

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A tropical storm popped-up in the Caribbean Sea Monday morning. Coming as a bit of a surprise to most meteorologists, since the National Hurricane Center only had a 10% chance of development on the storm — prior to declaring it a tropical storm with the 11 a.m. update on Monday.

Tropical Storm Hanna is situated along the northern coast of Nicaragua and will be making landfall by early afternoon. Hanna is currently packing winds of 40-mph and moving the west-southwest at 7-mph. Hanna is a weak system, with a minimum central pressure of 1005 millibars. Just for a bit of perspective, mean sea level pressure is 1013 millibars. Little to no strengthening is expected given the storm’s proximity to land.

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That said, tropical storm warnings have been issued from Punta Patuca, Honduras to Puerto Cabezas, Nicaragua.

The storm is likely to be a remnant low by late Tuesday.The main concern from Hanna will be a slow forward motion and the inevitable heavy rains.

Rainfall amounts of 10 to 12 inches of rain across Honduras and Nicaragua are likely, and some isolated locations could see as much as 15 inches of rain. The sudden onslaught of rain is likely to produce flash flooding and mudslides.

Hanna formed out of the remnants of Tropical Depression Nine, which has been bobbling around the region for more than a week. T.D. Nine originally formed in the Bay of Campeche and brought heavy rain to parts of the Yucatan Peninsula.

Meteorologist Alan Raymond

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