Aviation Digital Data Service (ADDS)

Output produced by TAFs form (0258 UTC 25 May 2017)
found at http://www.aviationweather.gov/adds/tafs/
 
KIAD 250158Z 2502/2606 12010G20KT 6SM -RA BR OVC015 
     FM250400 09010G18KT 6SM -RA BR OVC008 
     FM250600 07011G18KT 4SM RA BR OVC005 
     FM251200 12006KT P6SM OVC005 
     FM251500 19005KT P6SM OVC015 
     FM251800 21007KT P6SM -SHRA OVC035 
     FM260000 25006KT P6SM BKN110