Definition
Shown by blue triangles pointing the way it moves. Its steep slope, near 1 in 50, forces rapid uplift, giving cumulonimbus, heavy showers or thunderstorms and a narrow belt of severe weather. Passage brings a sharp veer of wind in the Northern Hemisphere, often 40 to 90 degrees, a squally increase in strength, a pressure rise and a temperature drop, followed by clearing skies and good visibility.
Want to apply this on the water?
Ask Saily out loud for an example, a scenario or a simpler explanation.
Talk to Saily