PROBABILITY  OF  PRECIPITATION  AND  FORECAST  TERMINOLOGY
Percentage Probability
of Precipitation		 Forecast Term for

Steady Precipitation

Showery Precipitation
20 percent Slight chance of precipitation Widely scattered showers
30 to 50 percent Chance of precipitation Scattered showers
60 to 70 percent Precipitation likely Numerous showers
³ 80 percent Rain or snow Showers