With thanks to Tbatt:
tBatt wrote
I usually start here:
http://mag.ncep.noaa.gov/Model Guidance
Area: NAMER
Type: GFS (or NAM-HIRES if the storm is less than 3 days out)
SFC-Layer params: 850_temp_mslp_precip
Loop All
At least that's where I usually go, or Preip_ptot to find total water amounts for the storm. I'm sure people who actually know what they're doing could help out more.
"You just need to go at that shit wide open, hang on, and own it." —Camp