Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0317 UTC 16 December 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
KIAD 152328Z 1600/1706 VRB03KT P6SM SCT045 
     FM161200 22007KT P6SM SCT120 
     FM161600 23011KT P6SM SCT100 
     FM162200 25006KT P6SM FEW110 
     FM170400 00000KT P6SM FEW200