Maybe its me, but the system in the Gulf seems to have a vortex to the north of the Yucatan--don't thing that it is all impossible for development.
Historical note--several storms in recent years have developed in the gulf due to wave interaction with an upper low:
Hermine, 9-17-98
Harvey, 9-19-99
Beryl, 8-13-00
Allison, 6-5-01
Barry, 6-5-01
Bill, 6-29-03
it is also interesting to note that since 1967 (when satellite surveillance wasnt limited to one or two images a day) there has never been a year with no depressions before August
only 1967, 1972, 1982, 1993, and 2000 went through July without a depression
also, in case anyone is interested, the years with no June depression are:
1969, 1971, 1978, 1980, 1983, 1985, 1988, 1990, 1998, 2002, and this year