

300^1 Year Total, mm | 







X <1992 1062 





275- 



o—.e 1980-92 1037 





250- 



A 





225- 



A 



E 



200- 



/ \ 



E 





/ \ 



c 



175- 



/ \ 



o 





/ \ 



o 



150- 



/ \ 



-'-' 





/ \ K 



a. 



125: 



/ \ /\ 



o 





\ / 1 / \ 



QJ 





\ / ■' ^ \ / \ 



qI 



100- 

 75- 

 50- 

 25: 



o4 



a\ o- /^'^k /\ 



\ v'' -^o' / ^V ^/ \ 



\x / \"^/ YD 



III :: 1 1 1 1 1 1 





JAN FEB MAR APR V1AY JUN JUL AUG SEP OCT NOV DEC 





Month 



Figure 5. Daily precipitation values with monthly totals 



Wind Speed and Direction 



Winds at the FRF are dominated by tropical maritime air masses that create low to moderate, 

 warm southern breezes; arctic and polar air masses that produce cold winds from northerly directions; 

 and smaller scale cyclonic, low pressure systems, which originate either in the tropics (and move 

 north along the coast) or on land (and move eastward offshore). The dominant wind direction 

 changes with the season, being generally from northern directions in the fall and winter and from 

 southern directions in the spring and summer. It is common for fall and winter storms (northeasters) 

 to produce winds with average speeds in excess of 15 m/sec. 



Measurement instrument 



Winds were measured at the seaward end of the pier at an elevation of 19.1 m (Figure 2) using a 

 Weather Measure Corporation (Sacramento, CA) Skyvane Model W102P anemometer. Wind speed 

 and direction data were collected on the FRF computer. The anemometer manufacturer specifies an 

 accuracy of +.0.45 m/sec below 13 m/sec and 3 percent at speeds above 13 m/sec, with a threshold 

 of 0.9 m/sec. Wind direction accuracy is ±1 deg, with a resolution of less than 1 deg. The 

 anemometer is calibrated annually at the National Bureau of Standards in Gaithersburg, MD, and is 

 within the manufacturer's specifications. 



