0 Thunderstorms could cause issues around Auckland and Northland

• Auckland Power / Weatherwatch
• by Stuart Gunn
• 28-05-2025

The centre of a low will move over Auckland city/region on Thursday night/early Friday, followed by a windy sou’wester from Friday and through the long weekend. Stay ahead of others with alerts from Lert Info  Each day has different risks, but generally speaking, this is a MODERATE risk event for the Vector power network - but should be in POCKETS .  The main risk is from heavy downpours/thunderstorms, mostly on Thursday PM.  Windy Sou-wester come in on Friday and may cause issues also.   Wednesday - LOW RISK Rain develops later in the day with some heavy falls possible. Isolated thunderstorm risks will develop later in the day and overnight.  Thursday - MODERATE RISK Heavy downpours, possibly slow-moving with thunderstorms (maybe severe thunderstorms) are expected over the upper North Island as the centre of the low moves in with colder air.  The main risk appears to be from noon Thursday to Midnight Thursday. It’s possible, the the highest intensity will be over Northland and out at sea from Auckland - but Auckland is enough inside the risk zone to be exposed. There is a high risk for thunderstorms forming Thursday in the upper North Island, but for now a MODERATE risk applies to the Vector power network due to uncertainty about precise placement of these downpours (which often can’t be locked in until they are forming/moving in on the day).   Friday - LOW-MODERATE RISK Strong SW winds kick in, possibly squally/gusty, with western/exposed areas potentially having winds over 100km/h for a time. Windy sou’westers continue for the long weekend but gradually ease back from Friday’s peak. Source : Weatherwatch