Porangahau River Mouth Wind Stats

This image shows how frequently and how strongly the wind blows from different directions through a typical May. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue showing the strongest winds. It is based on 3440 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Porangahau River Mouth, located 33 km away (21 miles). There are not enough recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the prevailing wind at Porangahau River Mouth blows from the SE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Porangahau River Mouth. By contrast, dominant spokes illustrate favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average May, the model suggests that winds are light enough for the sea to be glassy (light blue) about 5% of the time (2 days each May) and blows offshore 29% of the time (9 days in an average May). In a typical May winds stronger than >40kph (25mph) are expected on 2 days at Porangahau River Mouth

read more