Category Archives: Climate Impact

Rolling Australian Excessive Heat

Stunningly warm sea surface temperature anomalies (SSTA) are located east of Australia while a persistent cool pool of SSTA remain west-northwest of Australia. The SSTA signature is reflected in the prevailing upper air pattern featuring ominous upper trough(s) off the Indian Ocean and into Western Australia running into a powerful subtropical ridge extending westward from the warm SSTA zone. These conditions produce an intense transitional hot weather event for the weekend and early next week in Australia.

CIC Week 2-4 Outlook for North America

Re-organizing cold the second half of December. This time the cold focus is on the western U.S. Gradually THAT cold lifts northward into early January. A warm pattern change is likely to follow.

CIC Week 2-4 Outlook for South America

Influence of the Madden Julian oscillation bringing wet weather across Argentina next week eases the last week of December is a cooler/drier regime settles. The wet belt shifts north and into Southeast Brazil.

U.S. Medium-range Forecasts Turn The West (and Central) Colder

Today’s medium-range forecasts indicate an emerging cold pattern in the West to Central U.S. spawned in part by a transitional Madden Julian oscillation from the Pacific to the Atlantic tropics and a stratospheric warming event in the northern latitudes.

U.S. Soil Moisture Outlook

The Mid-South has aggressively trended drier during autumn and early meteorological winter. The latest forecast indicates the drying will spread across much of the Great Plains through winter and early next spring.