NINE
Plain Language Summary
Tropical Depression Nine is about 380 miles west of Progreso, Mexico (and about 630 miles southwest of the Mouth of the Mississippi River), moving east at 5 mph. Maximum sustained winds are 35 mph.
Why forecasters expect this
Winds through a deep slice of the atmosphere are guiding Nine along the base of a broad “deep-layer trough” (an elongated area of lower pressure that extends through much of the atmosphere), which is why NHC’s forecast starts with a slow track.
The environment ahead (wind shear, ocean heat and moisture along NHC's forecast track, from NHC's statistical guidance) is part of Advanced. Upgrade to Advanced