Accuracy

The attached map shows the accuracy of UKASF's forecasts based on a colour-coded scale. This map is constructed using a 50x50 mile (80x80 km) grid.

The data is collected from the UKMO ATD network and uses the following basis:

• if lightning occurred and was forecast = high accuracy
• if lightning occurred and wasn't forecast = low accuracy
• if lightning was forecast but didn't occur = low accuracy
• if lightning wasn't forecast and didn't occur = high accuracy

Map issued Wednesday 17th June 2009


For more information click here.