This forecast displays Southampton's conditions for observing over the next 48 hours. The variables shown are: Total - This is total cloud cover expected at all levels of the atmosphere. Surface - This is the forecast cloud cover at the ground i.e mist/fog Low - This is the forecast cloud cover from 100 to 4,000ft Middle - This is the forecast cloud cover from 4,000 to 12,000ft High - This is the forecast cloud cover above 12,000ft Convective - This is the forecast cloud cover of convective clouds i.e cumulus. RainRisk - This is a simple yes or no as to whether the model is expecting rainfall in this area. Intensity - This is the forecast intensity of precipitation during this period.