WEATHER CHART.

Lyttelton Times, Volume LIX, Issue 6898, 9 April 1883, Page 3

WEATHER CHART.

JBIPIiAKAIIOS.

April 7, 9 a.m.

High -pressure over Bastern Australia and southerl* wind i slight rain at Sydney, but overcast at Portland, with vain and wind from north-west. Fine in west, though slight decrease in pressure. Barometer.--Albany, 29 9 j Portland, 801 j Sydney, 303.

Hiw ZaAZAHP.

Depression of! south-east coast ( moderate nertb-wett wind; overcast and slight rain at Bluff. Strong gale from north-west at Wellington during the night. ' Barometer. Russell, 80 2; Wellington 80 f Bluff, 29 8.

This diagram shows the weather oyer temperate latitudes of Australia and New Zealand. The dotted lines or IBOBAbb oonneot equal readings of the barometer at 9 a.m. on the above date, and thus indicate the general circulation of the atmosphere, the wind always following the lines, changing its direotion as they change, and increasing in foroo according to the amount of difference of barometer whioh. they express. The arrows fly with the wind, whioh always blows in a contrary direction to the movement of the hands of a dock round an area of high barometer and with the clock hands round a low barometer or cyclonic area. ~,■,.. .. Changes of weather chiefly arise from the eastward progress of these latter disturbances at a rate of 800 to 600 miles in 24 hours. All looal deflections of the isobabs due to the shape of the land are omitted.