Method last upgraded Sept 30, 2011 ******************************************************************************************************** * The following is a verification using the most recent forecast method on the data from six days ago. * * It is part of "Truth in Advertising," i.e. it helps to evaluate the forecasts for this station. * * * * Under "Forecast - Observed", the actual values are subtracted from the forecast values. For example, * * a wind speed of -5 indicates the forecast wind is 5 km/h too light and +5 indicates the forecast is * * 5 km/h too strong. The wind direction is the number of degrees difference between the forecast and * * actual wind. Wind direction is not verified when the actual winds are light and variable. * * * * Under "Observed", the clouds, precipitation type, and precipitation amount are the observed values * * that must be compared to the forecast values to the left. * * Note that actual one hour precipitation amounts are not available from all stations. * * SH = Showers near but not at the station. * * Showers may also occur between hours and not show up in the verification column. * ********************************************************************************************************