Commodities Market Impact Weather

MINNEAPOLIS (DTN) -- After a storm moving through around Christmas, the movement of the polar vortex will take center stage while a mix of conditions across South America continues to hold the market's attention Tuesday.

VARIABLE MIDWEST WEATHER

An active pattern will bring a few storm systems through the Midwest during the next 10 days. Precipitation may be limited until a system goes through Friday into Saturday and another goes through next week. Cold air from the Arctic may spill into the region at times next week.

SW PLAINS STILL BUILDING DROUGHT

The southwestern Plains have remained dry with declining conditions for wheat and increasing drought. Despite an active pattern with systems moving through, chances for precipitation through the end of the year are low, especially in the west that needs it most.

NEAR CONTINUOUS PRECIPITATION FOR PNW

An active upper-air pattern will produce periods of showers in the Pacific Northwest through the end of the year, helping to increase moisture for dormant wheat.

ARCTIC TEMPERATURES SPILLING INTO N. PLAINS NEXT WEEK

A system will move through the Northern Plains with light to moderate snow over the north early Tuesday. A more potent storm should move through late week with some showers and strong winds. Cold air from the Arctic will spill into the region next week.

POLAR VORTEX COMING TO CANADIAN PRAIRIES

Arctic cold conditions will build into the Canadian Prairies late this week and continue through next week as a lobe of the polar vortex shifts into the region. Stress on livestock will increase due to the cold.

DRYNESS CONCERNS CONTINUE FOR SOUTHERN BRAZIL

A few isolated showers will move through southern Brazil through Wednesday, but dryness returns for the following week. Conditions for reproductive to filling corn and soybeans will continue to decline in the south. Conditions for reproductive to filling soybeans in central and northern areas continue to be very favorable.

GETTING DRIER IN ARGENTINA AGAIN

Isolated showers will continue in Argentina through Wednesday, then most areas should be dry for the following week, though there may be a few more isolated showers in southeastern areas on Friday. Overall crop conditions are expected to decline as early planted crops get closer to or into reproduction. Late planting continues to be slow as producers try to wait for better precipitation and soil moisture, though prospects through most of January are not good.

FAVORABLE HARVEST CONDITIONS FOR EASTERN AUSTRALIA

Some isolated showers will be possible in eastern Australia throughout the week, but for the most part are not a concern for wheat and canola harvest. Conditions are good for developing cotton and sorghum as well.

John Baranick can be reached at john.baranick@dtn.com

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