For Btumbawe :
No gale warning.
The reliability of the situation is good.
Skies clearing but with risk of storms in the morning, increasing sunny spells in the afternoon. Risk of showers in the morning, possibility of a few spots in the afternoon. In the evening, skies progressively clouding over with storms forming.
Possibility of showers WSW force 1 in the morning freshening SE force 3 in the middle of the day. Gusts reaching 16 knots from the middle of the day. Slight sea. Low, short swell from ESE. Visibility reduced by mist becoming excellent in the middle of the day then reduced by mist.