According to the Civil Defense, heavy rains should occur in the northern half of the state because of low pressure and humidity from the north of the country
Rio Grande do Sul should record heavy and temporal rainfall between Saturday night (28.jun.2025) and Sunday morning (29.jun.2025). The accumulated should be between 50 mm and 90 mm in the Northwest, Center-North, Metropolitan, Valleys, Serra and North Coast. At isolated points, the volumes can exceed 100 mm. In other areas of the state, volumes range from 10 mm to 40 mm. According to the Civil Defense, instability is caused by the deepening of a low pressure area over the state, coupled with the flow of moisture from the north of the country. There is also a risk of hail and gusts of wind above 70 km/h in the Northwest, North, Northeast and Serra. The formation of an extratropical cyclone near the coast maintains the forecast of heavy rainfall on Sunday. The sea should be agitated, with winds between 50 km/he 80 km/h.