Weather Glossary - Z
Large-scale atmospheric flow in which the east-west component (i.e., latitudinal) is dominant. The accompanying meridional (north-south) component often is weaker than normal. Compare with meridional flow. Weather systems tend to move past quickly in a zonal flow regime.
Greenwich Mean Time (GMT). Centred on zero degrees longitude. For scientific purposes this time zone is also known as Universal Time (UTC). All meteorological observations worldwide are reported using this time (for ease of comparison and computation). This timezone is commonly suffixed with 'Z'.
South Australian River Murray irrigators have seen their second water allocation increase within a month.
Southeastern Australia is in for a wooly few days next week as forecast models begin to jump on the cut-off low bandwagon.
A report by Hydro Tasmania has found a cloud seeding operation carried out in June did not increase rainfall in the hours before major flooding.