Normally, it'd be a bit early to start a thread, but given the consensus for TC genesis on the guidance and potential flooding hazard to parts of the Gulf Coast, I think it's worth starting a thread.
This is something we've been watching since early in the month, with consistent signals for a window of development in the western Caribbean or Bay of Campeche (BoC) finally focusing on a trough of low pressure that should spawn something in the next few days. Both intensity and track are TBD, but if this follows climo we would end up with a fairly large and disorganized system with the potential to bring significant rainfall to parts of the Gulf. While the Gulf is warm and the concave nature of the BoC favors development, there is a lot of shear over the region currently which will inhibit development for a while. Conditions are expected to become more conducive in the coming week.
Just a final note: be wary of the spaghetti model guidance. It's not particularly helpful when we don't have a developed system (and even then...) so I'd focus on the GEFS and EPS with operational guidance second.
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Sun Jun 13 2021
For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
1. A trough of low pressure continues to produce a large area of
disorganized cloudiness and showers over the Bay of Campeche.
Slow development is possible over the next several days while the
broad disturbance moves little, and a tropical depression could form
in this area late in the week. Regardless of development, heavy
rainfall will be possible over portions of Central America and
southern Mexico during the next several days. Please consult
products from your local meteorological service for more
information.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 5 days...medium...50 percent.
Forecaster Blake