trough of low pressure

trough of low pressure

trough of low pressureclick for a larger image
A pressure system in which the isobars around a low pressure become elongated such that the pressure is lower along the axes of the trough than on its two sides. Sometimes, the isobars at a trough have a pronounced V-shape. Active weather fronts always lie in troughs, but not all troughs are frontal.
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The latest weather analysis in the National Multi Hazard early warning centre shows that the Sultanate will be affected by a trough of low pressure, starting Saturday, February 24, 2018, and it will go on for the next few days," a PACA advisory read.
will be affected by trough of low pressure starting from Saturday, 24
The trough of low pressure area (LPA) will prevail over the Visayas while a northeast monsoon, or amihan, will affect Luzon, according to the bulletin issued at 4:00 p.
Oman will be affected by a trough of low pressure from Friday evening till Monday, according to the Public Authority for Civil Aviation (PACA).
Most computer projections show a trough of low pressure arriving from the northwest this weekend to turn Irma toward the north.
The heatwave will be swept away and high winds and heavy rain will batter the country as a deep trough of low pressure is driven our way.
The next 48 hours will be very crucial, under the influence of a trough of low pressure and upper air circulation over the southwest Bay of Bengal and the Sri Lankan coast.
PAGASA reported a trough of low pressure area (LPA) extending across Visayas and Mindanao.
Leonard also said a trough of low pressure has been in the Northeast since mid-January while the Pacific Northwest has been in an area of high pressure which explains why Alaska has been mild and almost snowless this winter.
The center said that some weakening is expected by late Wednesday and the depression is forecast to degenerate into a trough of low pressure in two to three days.
But the low pressure cell is an area of clockwise circulation meaning it causes a north wind on our coastline, thereby bringing the Angolan low pressure area south along our coastline in a clearly defined trough of low pressure.
It was a very deep trough of low pressure that brought the winds, but they eased off late in the afternoon and were being replaced by high pressure which should mean brighter weather for the weekend.