As of Sun 07 Feb 2016 12:15:01 AM PST, the NAM forecast sounding for 12AM
Near BJ-Black —closest grid point available to 48.86 -122.13 | Go Back |
TI is Thermal Index and LPT is the Theoretical temperature of a Lifted Parcel of air starting at the ground.
♦Reverse Rows

---

The Top of the Boundary Layer is also the Mixing Layer and is the level at which the Thermal Index = 0See DrJack's discussion or Richard Kellerman's pages.