Model: Local weather forecast model from the UK MetOffice
Update: 4 times per day, from 00:00, 05:00, 11:00 und 17:00 GMT
Greenwich Mean Time: 12:00 GMT = 13:00 BST
Variable: Precipitation
Description: The precipitation map shows the modeled precipitation in mm over the entire North-Atlantic and European region. The precipitation areas are encircled by isohyets - lines with equal amounts of precipitation. However, modeling precipitation is still not very reliable. If you compare the modeled results with observed values you will realize that the model is nothing better than a first order approach. Yet this chart is of some use for forecasters.
Note: Based on international convention meteorologists use the metric system. 100 mm of precipitation is equivalent to roughly 4 inches.