![]() ![]() ![]() ![]() Figure 12. The 850-hPa winds and isotachs (wind barbs in kt; light shading denotes wind speeds greater than 50 kt; dark shading denotes wind speeds greater than 70 kt) from the RUC40 model at (top) 06 UTC 23 December 2004, (second) 12 UTC 17 October 2006, (third) 06 UTC 25 February 2007, and (bottom) 15 UTC 1 March 2007. |