Expected areas of icing and turbulence will not be included. P6SM -TSRA BKN050. TSRA CIGS OVC030-040. All heights AGL except cloud tops. KISN-50NM E KISN until 00Z, visibility greater than 6SM with clear skies.
All heights mean sea level except ceilings.
After 22Z, visibility greater than 6SM and sky clear. A TWEB synopsis forecast is a brief description of the weather systems affecting the route during the forecast valid period. The synopsis describes movement of pressure systems, movement of fronts, upper air disturbances, or air flow. Low pressure trough moving across North Dakota today and tonight. High pressure moving southeastward from Canada into northwestern North Dakota by tonight and over most of North Dakota by Wednesday morning.