Verifying the 00z GFS vs 12z RAOB data shows higher-than-expected heights over much of the south-central US this AM.

Ensemble sensitivity analysis suggests that an error in this direction would support lower pressures closer to the coast on Tuesday.

NW trend may continue today! pic.twitter.com/0HoMaTpTO6

— Jack Sillin πŸ‡ΊπŸ‡¦ (@JackSillin) January 30, 2021