Snowfall Analysis in URMAv2.8

Source of analysis: NOHRSC

Plan to add NOHRSC 6h/24h snowfall analysis to the precipitation URMA suite (dependent on data received at NCEP via official ftp-in).

Current parallel run: at 18:00Z each day, unofficially fetch (wget) and process NOHRSC data for current day, $daym1/$daym2/$daym3/$daym5/$daym7. Data mapped from NOHRSC’s g184 to the expanded ConUS grid (WEXP) for NBM. g184 data sent out to AWIPS.