For Shirasato :
No gale warning.
The reliability of the situation is very good.
Some fair-weather cumulus clouds. In the evening, relatively cloudless skies clearing.
SE force 3 in the middle of the day turning S in the evening. Gusts reaching 11 knots in the evening. Moderate sea. Moderate, fairly long swell from SSE. Excellent visibility becoming reduced by mist in the evening.