Aviation Digital Data Service (ADDS)

Output produced by TAFs form (1130 UTC 17 September 2014)
found at http://www.aviationweather.gov/adds/tafs/
 
KIAD 171123Z 1712/1818 VRB03KT P6SM FEW050 
     FM171900 19004KT P6SM FEW050 
     FM172300 VRB03KT P6SM FEW050 
     FM181600 34006KT P6SM SCT050