How to interpret UMOS wind tables
3105 = wind direction of 310º at 05 kt
VRB = varible winds at <5 kt

UMOS Winds
Updateable Model Output Statistics (UMOS) winds are the product of a real-time statistical analysis of model fields, which includes an assessment of the accuracy of past model performance compared to actual observations. Thus they are useful operationally because they typically exhibit greater accuracy than the actual model-produced winds from a single operational simulation.

The Canadian UMOS system, developed and implemented by the Meteorological Research Branch (MRB) and the Candian Meteorological Centre (CMC) of the Meteorological Service of Canada (MSC), has been supplying operational guidance for land-based stations across Canada since March of 2000. Employing the winds observed at these stations as predictands, UMOS constructs regression equations using predictors from the GEM model.