Expected La Nina Wet Pattern Beginning To Evolve Australia

Record Heat And Dryness For Summer 2020!
09/09/2020, 9:01 pm EDT
96L Likely A Northern Gulf of Mexico Tropical Cyclone Early Next Week
09/11/2020, 10:48 am EDT
Show all

The expected broad wetter-than-normal climate pattern across Australia driven by an evolving La Nina appears to develop in the latest NCEP CFS V2 weekly rainfall forecast.

Anticipated La Nina wet climate pattern across Australia begins to evolve

Fig. 1-4: NCEP CFS V2 percent of normal rainfall forecast for the next 4 weeks indicates an evolving wet pattern.

Discussion: The expected broad wetter-than-normal climate pattern across Australia driven by an evolving La Nina appears to develop in the latest NCEP CFS V2 weekly rainfall forecast (Fig. 1-4). The model indicates presence of a persistent upper trough to generate rainfall mostly across the eastern half of the continent after mid-September and well into October (and beyond). Western Australia is at less (wet) risk. However, an expected negative Indian Ocean Dipole (-IOD) should bring wetter conditions to Western Australia mid-to-late spring.