NSA/MET/C1 - PWS Data Questionable

There was a degradation in the PWS lenses.  New lenses were installed on 08/28/2007 but a 
proper calibration was not conducted until 10/10/2007.  Data  during the listed time 
period should be used with caution.

• pwd_pw_code_15min
• pwd_mean_vis_10min
• pwd_pw_code_inst
• pwd_mean_vis_1min
• pwd_cumul_snow
• pwd_pw_code_1hr
• pwd_cumul_rain
• pwd_precip_rate_mean_1min
• pwd_err_code