Note that there was a low pressure center associated with this wave, but it has become increasingly difficult to locate it. At 00Z it seemed to be right on the coastline of east-central Honduras - due south of Roatan Island. Over the last couple of hours the wind at Roatan has been out of the east at a steady 25mph.

I'm sure that the thinking at NHC was that if this center remained over land, the system would not intensify. To put the TWD in proper context, here is the complete paragraph:

"A STRONG TROPICAL WAVE IS OVER THE WESTERN CARIBBEAN ALONG 85W S
OF 22N. DISORGANIZED SHOWERS AND THUNDERSTORMS EXTENDING FROM
HONDURAS NORTHEASTWARD TO THE CAYMAN ISLANDS ARE ASSOCIATED WITH
THIS TROPICAL WAVE. DEVELOPMENT OF THIS SYSTEM IS NOT EXPECTED
DUE TO PROXIMITY TO LAND. HOWEVER...LOCALLY HEAVY RAINFALL IS
POSSIBLE OVER PORTIONS OF CENTRAL AMERICA AND THE YUCATAN
PENINSULA DURING THE NEXT DAY OR SO AS THIS SYSTEM CONTINUES
WESTWARD AT 10 TO 15 KT. THE WAVE IS ALSO HELPING TO INDUCE
SCATTERED SHOWERS AND TSTMS OVER WESTERN CUBA."

Cheers,
ED