[ RASP UK Forecast (Stratus) ]

What is Forecasted?

The platform provides coverage of the UK up to six days in advance. These are called 'UK' followed by a number. They are also at differing resolutions - 2Km, 4Km and 12Km. A resolution is just the smallest area the forecast uses, so a 2Km forecast is higher resolution (more data) than 4Km or 12Km (i.e. more forecasts are made).

When you traverse the data, you will see 'UK12' which means 'UK at 12Km resolution for today'. 'UK4' is today's data at a higher resolution of 4Km, 'UK4+1' means tomorrow (+1) at 4Km resolution. 'UK12+2' to 'UK12+6' are forecasts at 12Km resolution for two or more days out, with 'UK12+6' the furthest away.

Bear in mind that the atmosphere is in constant flux, so the forecast for almost a week in advance is likely to change. So most pilots only really use up to two days ahead. But you can at least get an idea of the weather further away - just take the results with a pinch of salt.

In most cases, pilots only worry about tomorrow based on the afternoon run or first thing in the morning by looking at the 4Km run.
Regional  Atmospheric  Soaring  Prediction
The Webmaster makes no representations or warranties, expressed or implied, as to the accuracy of the information held herein or its fitness for any purpose whatsoever. In no event will the Webmaster be held liable for any direct, indirect, special incidental or consequential damages arising out of the use of the information held on this server.
BLIPMAP = Boundary Layer Information Prediction MAP - Created by Dr. John W. (Jack) Glendening, Meteorologist