Atmospheric River Closes After Today; Northern Mid-Atlantic Snowstorm Today
12/26/2025, 8:16 am EST
Arc of Heavy Rain in South America, Northern Australia Excessive Rainfall, and Losing the Western Canada Cold Air Source Region
12/30/2025, 6:02 am EST
Climate Impact Company Week 2-4 Outlook
Australia
Issued: Sunday, December 28, 2025
Highlight: Excessive rains Queensland.
Chart of the day: Short-term excessive rainfall.
Discussion: Excessive rainfall causes widespread flooding in North/West Queensland this week. Residual effects extend southward to South Australia. Heavy rain continues on the Northwest Coast.
Week-2 Ahead Forecast valid January 4-11, 2026: More heavy rains East.
Discussion: Operational ECM is wettest next week; GFS (and other models are drier). However, lingering low pressure entraining tropical moisture sustains the East Australia wet pattern.
Week-3 Ahead Forecast valid January 11-18, 2026: Staying wet across the North.
Discussion: Wet weather continues north and northeast continent; heavier rains likely for the northwest coast. South of the wet zones, anomalous heat strengthens.
Week-4 Ahead Forecast valid January 18-25, 2026: Still very wet across the North.
Discussion: Heavy rains are likely to continue northwest to northeast continent. Anomalous heat becomes marginal across the southern half of Australia.