Download The Climate Impact Company Month 1-3 Forecast
Pictured: Climate Impact Company drought expansion forecast for mid-to-late summer.
The polar vortex presence mainly in northeast Canada with an occasional tail extending into the Northeast U.S. is forecast to weaken late summer. The primary cause of that weakening is entrainment of warm mid-level air northward from an expected active late summer/early autumn tropical pattern. Combined with widening dry soil regions, particularly the Central U.S. the ingredients for widespread anomalous high pressure ridging across the middle latitudes for late summer is likely. The outlooks are warmer-than-normal nationally with most rainfall in the Gulf of Mexico region. The preliminary outlook for October indicates a returning trough in western Canada causing some needed rainfall in the Northwest U.S. while the Central U.S. remains warm and dry. Expanding dryness in the Great Plains is likely.
Pictured: The Climate Impact Company month 1-3 precipitation anomaly forecasts.
