2001 Hurricane Season

Tropical Storm Barry

Hurricane Gabrielle

Hurricane Humberto

Hurricane Michelle

Figure 1a. Track forecast errors for the no dropwindsonde and the all dropwindsonde runs for the AVN, GFDL, and VBAR models for all twelve 2001 synoptic surveillance missions.

Figure 1b. Track forecast improvements for the AVN, GFDL, and VBAR models for the twelve 2001 synoptic surveillance missions.

Figure 2a. Intensity forecast errors for the no dropwindsonde and the all dropwindsonde runs for the AVN, GFDL, SHIP and DSHP models for all twelve 2001 synoptic surveillance missions.

Figure 2b. Intensity forecast improvements for the AVN, GFDL, SHIP and DSHP models for the twelve 2001 synoptic surveillance missions.