North Sails have again kindly enlisted Roger ‘Clouds’ Badham – one of the most respected meteorologists in yachting – to provide us with a daily weather forecast for the 20th annual BOISW regatta.
‘Clouds’ has been involved with yacht racing for five decades and has forecast 10 America’s Cups, nine Olympics Games, more than 40 Sydney to Hobart races and countless world championships and major sailing events. There’s a great interview with Clouds on the Broad Reach Radio podcast which you can listen to here.
North Sails Weather Forecasts will be issued daily before racing begins – view them on the website and BOISW app.
TUE 23. 8.30am
Cold front approaching from the west – timed to cross the Northland this afternoon – to cross BOI area later this afternoon. High pressure will follow and will be located to the west of NZ over the Tasman Sea tomorrow and Thursday with easing S flow across Northland. The high pressure will weaken Friday and will be pushed to north as the next front crosses the Tasman and comes onto the South Island. The S flow eases Friday, then a shift to a pre-frontal NW wind direction on Saturday, then a bit more left to W on Sunday as the front comes close.
NW pre-frontal flow this morning, then more cloud in the afternoon – a few showers from early to later afternoon when the wind may ease and start shifting left to W. As well as a shower, a thundery shower with locally heavier fall is possible mid afternoon. No major left shift to SSW-S until well into the night?
Max wind early afternoon when NW – wind speed of 15-20 kts with gusts to mid 20’s. Always more breeze offshore; will be strongest in across the Bay early afternoon
0800. obs. W-NW/5 in close and NW/10-13 out wide
1000. 310-330/13-16 gusts to 20
1200. 320-340/16-19 gusts to 25
1400. 320-340/15-18 gusts to 25 showers, possibly thundery
WED 24. S/8-12 increasing S/12-16 early-mid afternoon
THU 25. SW then S/12-15 shift left to SE/10-13 afternoon
FRI 26. SW then SSW/6-9 shift to E-NE/10-13 afternoon
SAT 27. W-SW/5-8 then NW-N-NE/12-17 afternoon
SUN 28. W/4-8 then W-NW/9-12