Not sure what “sunshine duration (1h)” precisely means, but I like that a LOT more than the cloud cover %. GFS shows 0 mins for TX, but euro is like 30-50 mins for eclipse time.
Tomer changed his % of clear sky solar radiation metrics to 85/60-85/<60, which wasn’t favorable for TX lol. I’m still hugging the GGEM which looks mostly clear for me during eclipse.
All I’d recommend is picking your spot, get there early, and leave well after totality. Most people will get back in the car right after totality ends. Stay put for another few hours and hopefully traffic calms down.