Effects of Synoptic Surveillance on model forecasts for
Hurricane Cindy.


Assessments for each forecast time at
July 04, 2005 18 Z
July 05, 2005 00 Z 06 Z 12 Z

Fig 1a. Track forecast errors for the no dropwindsonde (NO or NN) and the all dropwindsonde (AL) runs for the GFS and GFDL models for the Tropical Storm Cindy synoptic surveillance missions.

Fig 1b. Track forecast improvements for the GFS and GFDL models for the Tropical Storm Cindy synoptic surveillance missions.

(a)
(b)

Fig 2. Forecast errors for the landfall of Tropical Storm Cindy at Grand Isle, LA, in the (a) cross- and (b)along-track directions for the no dropsonde (NO or NN) and the all dropwindsonde (AL) runs for the GFS and GFDL models.

(a)
(b)

Fig 3. Forecast errors for the landfall of Tropical Storm Cindy at Ansley, MS in the (a) cross- and (b)along-track directions for the no dropsonde (NO or NN) and the all dropwindsonde (AL) runs for the GFS and GFDL models.