Latest News
10/29/2024, 5:42 am EDT
Both Australia Bureau of Meteorology and Climate Impact Company project a short-lived -IOD regime weakening by late 2024. The weekly Nino34 SSTA is -0.5C and the most recent multivariate ENSO index is -0.7, each indicating borderline weak La Nina. During the past 30 years when -IOD and weak La Nina was present, the NOV/DEC precipitation pattern across Australia favored drier than normal climate for eastern sections.
10/27/2024, 6:56 am EDT
During October, Northwest Argentina turned very wet. During the past week, the wet pattern in Argentina shifted slightly southward and remains intense. Meanwhile, a separate wet weather pattern has emerged during the past week in Brazil featuring drought suppressing heavy rains from East-central Brazil eastward to the coast.
10/25/2024, 11:42 am EDT
A major heat wave is emerging in the medium range across Australia. A high-pressure ridge amplifies across Western Australia into early next week causing the onset of the hot weather pattern. East-coastal Australia is cool into early next week. However, the upper ridge is progressive, and the heat wave advances across Australia in the 6-10-day period according to the latest AI model, EXCARTA.
10/24/2024, 8:29 am EDT
A wet pattern has developed over the past week across the Brazil drought region. The outlooks maintain the wet pattern featuring some excessive rains in the 10-day outlook. The ECMWF "weeklies" maintain the wet pattern through the first third of November. Significant easing the drought conditions is likely!
10/21/2024, 2:13 pm EDT
The Nino SSTA regions are locked-in on neutral phase. There is no shift in trend to indicate La Nina onset. In the subsurface, the anomalous cool water to fuel La Nina is diminishing. Most of the cool water is between 100 and 150 meters with about half the strength of several weeks ago.
Climate Impact Company Chart of the Day
Lack of Snow Cover Northwest Eurasia About to Change
In Eurasia, snow cover is ahead of schedule in Northeast Asia although lagging in Northwest Eurasia. A colder upper trough bringing snowfall to Northeast Eurasia is projected for next week.
Climate Impact Company Climate Diagnostics
MJO-Inspired Brazil Rains
Prohibitive rainfall was observed during Oct. 21-27 across East-central Brazil and North-central Argentina while lack of rain was notable in Paraguay and much of northern continent. Daily soil moisture anomalies identify erosion of previously long-term drought across East-central Brazil and much of Argentina. The Nino34 SSTA is borderline La Nina (-0.5C).