APPENDIX B CONT'd 



AVERAGE MONTHLY WIND STRESS VALUES 

 DYNES/CM 2 



SAN FRANCISCO 



STRESS 



COMPONENTS 



TOTAL STRESS 



STRESS DIRECTION 





X 



Y 





DEGREES TRUE 



January 



0.32 



-0.22 



0.39 



124 



February 



0.53 



-0.54 



0.76 



135 



March 



0.90 



-0.78 



1.18 



131 



April 



1.13 



-1.17 



1.62 



136 



May 



1.45 



-1.44 



2.05 



135 



June 



1.42 



-1.55 



2.10 



137 



July 



1.07 



-1.17 



1.59 



137 



August 



1.04 



-1.12 



1.53 



137 



September 



0.84 



-1.00 



1.30 



140 



October 



0.66 



-0.94 



1.15 



145 



November 



0.46 



-0.40 



0.61 



131 



December 



0.33 



-0.37 



0.50 



138 



POINT ARENA 











January 



0.24 



-0.08 



0.26 



108 



February 



0.44 



-0.38 



0.58 



131 



March 



0.61 



-0.48 



0.77 



128 



April 



0.95 



-0.99 



1.38 



136 



May 



1.48 



-1.61 



2.18 



137 



June 



1.54 



-1.89 



2.44 



141 



July 



1.40 



-1.60 



2.13 



139 



August 



1.23 



-1.39 



1.85 



138 



September 



0.71 



-1.06 



1.27 



146 



October 



0.61 



-0.84 



1.04 



144 



November 



0.19 



-0.14 



0.23 



125 



December 



0.26 



-0.31 



0.40 



140 



EUREKA 











January 



0.25 



0.06 



0.26 



076 



February 



0.28 



-0.10 



0.30 



109 



March 



0.50 



0.00 



0.50 



090 



April 



0.45 



-1.18 



1.26 



159 



May 



0.69 



-1.55 



1.70 



156 



June 



0.82 



-1.99 



2.15 



158 



July 



0.73 



-2.02 



2.14 



160 



August 



0.58 



-1.76 



1.86 



162 



September 



0.48 



-1.49 



1.57 



162 



October 



0.30 



-0.75 



0.81 



158 



November 



0.04 



0.02 



0.05 



061 



December 



0.21 



-0.05 



0.21 



103 



B8 



