A northwesterly airflow increases over New Zealand today, changing southwest over the South Island this afternoon / evening then changing southwest over the North Island late evening. Rain moves in to western regions today becoming heavy, showers for the East Coast of the South Island.
Northland, Auckland, Waikato & Bay Of Plenty
Showers develop in the morning becoming heavy evening with possible thunderstorms. Gusty northwesterly winds change strong southwest later on.
Western North Island (including Central North Island)
Increasing cloud with rain developing by midday, becoming heavy in the evening with possible thunderstorms as breezy northwesterly winds change strong west to southwest. Gales possible about Taranaki. Snow overnight about the Central Plateau to 600m.
Eastern North Island
Sunny areas and increasing high cloud, northwesterly winds picking up in the afternoon. Late afternoon or evening a few spots of rain spread from the west.
Mostly cloudy with showers or spells of rain from midday, strong to gale northwesterly winds.
Marlborough & Nelson
Some increasing high cloud with breezy northwesterly winds, some rain spreads into Nelson by midday (only brief falls into Marlborough) then winds tending strong westerly late afternoon or evening with any remaining showers then clearing.
Sunny areas and some high cloud with northwesterly winds developing, a late afternoon southwest change brings showers. A few snow flurries lowering to 400m overnight, mainly near the coast however the odd snow flurry possible elsewhere.
Rain with heavy falls and thunderstorms then easing in the afternoon to showers as northwesterlies change gusty southwest. Snow to 800m first thing lowering to 400m late afternoon.
Southland & Otago
Areas of rain develop early morning about Southland then late morning for Otago as cold southwesterly winds move in, snow to 500m in the afternoon then lowering to low levels (200 to 100m) overnight.Highs: 7-10
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz