April 13th, 2006 Case Study

GOES-12 NOWCAST Products for the Eastern U.S.:
April 13th, 2006 Case Study

Here are the GOES-12 nowcast products from the April 13, 2006 severe weather case. The analysis was run hourly using 900-700 hPa and 700-300 hPa integrated water vapor retrievals from GOES-12. Vertically averaged wind and height fields from the Rapid Update Cycle (RUC) were used as initial conditions to project the GOES-12 retrievals forward 6 hours using dynamic Lagrangian trajectories.

Note: Analyses from the previous hour were used as the background for the current analysis.

Nowcast Animations

Initial Time	Animation
Select a time 13Apr06 12UTC 13Apr06 13UTC 13Apr06 14UTC 13Apr06 15UTC 13Apr06 16UTC 13Apr06 17UTC 13Apr06 18UTC 13Apr06 19UTC 13Apr06 20UTC 13Apr06 21UTC 13Apr06 22UTC 13Apr06 23UTC	Select an animation 700 - 300 hPa 6 hour Nowcast 900 - 700 hPa 6 hour Nowcast 700-300 hPa 6 hour Nowcast PW parcel locations 900-700 hPa 6 hour Nowcast PW parcel locations Vertical PW Difference 4 Panel Animation of Layer PW, Difference & GOES IR

Animation of Initial PW fields for full period:

• 900 - 700 hPa
• 700 - 300 hPa