Issued 15th Sept 2019. New South Wales is in for a mixed weather bag early this week with rain, snow, storms and strong winds on the forecast! A cold front will move North across Southern districts on Monday before developing into a Low across Central East districts on Tuesday. The low is expected to briefly intensify just off the NSW coast on Tuesday night. Above image: rainfall via Windy.com
The heaviest falls of 50-100mm are forecast along the coast from Newcastle, Gosford, Sydney, Wollongong, to Ulladulla between Monday afternoon and Wednesday afternoon. 10-25mm is forecast through Central inland parts of NSW with lighter falls of 5-10mm across Southern inland areas.
Scattered showers and thunderstorms are expected across the North East quarter of the state on Tuesday afternoon and evening. Some of these storms could be severe with damaging winds due to strong in the mid levels of the atmosphere. Those areas directly under storm activity could receive up to 20mm of rain.
5-10cms of snow is likely across the Alps on Monday night and Tuesday morning. Model data is continually suggesting possible heavier snow falls of 7-15cms across higher elevations on the Southern and Central Tablelands of NSW during Monday night and Tuesday morning. This snow is highly subject to low level temperatures remaining cold enough… given the current data it could easily fall as rain and sleet instead of snow but it will be interesting to see what happens!
WINDS & TEMPERATURES:
Maximum temperatures will be well above average across the Northern 2/3rds of NSW on Monday before the arrival of the cold front. Northern districts will see maximum temperatures of 30-34C. On Tuesday an 8-12C temperature drop will push across all districts accept the far North East. The Central Tablelands will see max temps of just 6-10C on Tuesday with most of the state struggling to reach 20C.
On Monday winds will be very warm from the North West across the Northern half of the state while the Southern half will have much cooler Southerlies developing. During Tuesday coastal districts South from Newcastle will see South East winds become very gusty as the low develops. Central inland will experience strong South East winds as well while Northern inland areas are expected to see strong South West winds. These strong South West winds may kick up areas of dust on Tuesday afternoon.