Australian Government Bureau of Meteorology Tasmania Warning to Sheep Graziers for Upper Derwent Valley and South East forecast districts Issued at 05:08 AM EST on Friday 17 April 2026 Warning to Sheep Graziers for the following areas: Upper Derwent Valley and South East forecast districts Sheep graziers are warned that cold temperatures, showers and strong southwesterly winds are expected during Friday and Saturday. Areas likely to be affected include parts of the Upper Derwent Valley and South East forecast districts. There is a risk of losses of lambs and sheep exposed to these conditions. The next warning will be issued by 11:00 am EST Friday.