2014), as well as a decrease in mean wind
speeds and wind power production (Tobin et al.
The technical violability depends on the availability of mean wind
speed, which must be at least equal to 3 meter per second for its minimum utility.
Wellington has already seen gusts of 160 (kph) … earlier today, and Cook Strait recorded mean wind
speeds of 130 km/hr and 11-metre (36 feet) waves this morning," he said.
The Kingdom of Bahrain has been affected by fresh to strong Northwesterly winds on the 25th of May which lasted until the end of the month and reached near gale to gale on the 31st of May especially in the Southern areas where the mean wind
speed 39 knots and gusts reached 46 knots and that was due to the seasonal low pressure developed over central and southern parts of Pakistan which extended in to the Arabian Gulf leading to shamal winds which are known locally as (Al-Barreh) Thick dust haze was reported on the 9th of May where visibility dropped to 800 meters at Bahrain International Airport.
Headwind approaches from the north experience the most severe wind shear effects, with mean wind
speed changes of up to 20kts occurring over a short distance along the approach trajectory.
The required use of a track-side anemometer during coast-down tests, following recommended practice SAE J1263 (4) , was only aimed at determining whether the mean wind
speed was below the admissible limit of 16 km/h but this anemometric data was not utilized in the analysis.
Wind was likely another important factor in prompting birds to seek shelter and warmth inside buildings, because the most extreme daily mean wind
chills were recorded on 9 and 10 October 2009, which were 1 to 2 d prior to when birds were observed indoors.
The following graph shows the availability of data and the mean wind
The mean wind
speed was predicted using k and c by four methods.
New planning rules introduced by central government mean wind
farms should only get the go-ahead if clearly backed by local people.
The Met Office and TORRO (The Tornado and Storm Research Organisation) estimated that the tornado had a general 'T4' rating on the TORRO scale with a short spell as a 'T5' tornado, which would mean wind
speeds between 93 and 130 mph, equivalent to an F2 on the Fujita scale.
Tatge concluded, "Gust wind speeds compared to mean wind
speeds were unusually high and compare to values for Kyrill in 2007.