Commodities Market Impact Weather

Big Storm Followed by Polar Vortex Cold Next Week

John Baranick
By  John Baranick , DTN Meteorologist

MINNEAPOLIS (DTN) -- An active pattern with a monster storm for the U.S. next week followed by arctic air, heavy rainfall in central Brazil, and continued good weather in Argentina are the weather factors driving the markets Friday.

HEAVY SNOW AND BLIZZARD POTENTIAL FOR MIDWEST NEXT WEEK

The pattern is getting a lot more active for the Midwest going into mid-January. A storm system in the Southern Plains will scrape across southern areas Friday and Saturday and could have some patches of moderate snow in some areas. More light showers continue elsewhere through the weekend. But a monster storm system is set to move through early next week that should bring a band of heavy snow and potential for blizzard conditions. The pattern stays active with multiple systems moving through mid-January. The main lobe of the polar vortex may stay off to the west, but a significant cooldown from the incredibly warm conditions of late should be expected starting late next week and be coldest for the western end of the region.

LARGE STORMS MOVING THROUGH CENTRAL AND SOUTHERN PLAINS

A storm system developed in the Central and Southern Plains on Thursday and continues eastward Friday, which is bringing a mix of rain and snow. A monster storm system will develop on Monday and bring more widespread impacts including heavy snow and blizzard potential. The storm track continues to be active next week with several more systems lining up to move through afterward for mid-January. Those systems will bring arctic air into the region later next week as the polar vortex makes a visit, though it may be hard to get fully into Texas.

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NORTHERN PLAINS GETTING READY FOR POLAR VORTEX VISIT NEXT WEEK

Light precipitation will move through the Northern Plains over the next week in a couple of waves, but the region will miss out on the large storm activity until possibly late next week or weekend. Temperatures will continue to be mild early next week but will take a dive late next week as the polar vortex makes a visit for mid-January.

MORE RAIN COMING FOR DELTA

A storm system will bring scattered showers through the Delta on Friday, but a monster storm should bring widespread rain and thunderstorms Monday and Tuesday. The storm track stays active for the region with a couple more storm systems for mid-January. These should help to raise water levels on the Mississippi River, which have had a boost lately. Still, the river is running on the low end and not out of the woods yet.

HEAVY RAINFALL CONTINUES IN CENTRAL BRAZIL

Widespread heavy rain has fallen in central Brazil the last several days and continues through most of next week as well, especially from Mato Grosso to Minas Gerais. Lower coverage and intensity of showers are forecast to start late next week or weekend, which may bring about more concerns for filling soybeans and early safrinha corn planting in late January. Southern areas will be drier until a system comes north from Argentina on Monday, followed by several waves of showers for mid-January. Recent drier weather in the south has been favorable overall for draining excessive moisture in the region, but a return to seasonable rainfall is preferred for developing to filling crops.

GETTING WETTER AGAIN FOR ARGENTINA

Frequent rainfall over the last several weeks has put much of the corn and soybean crop in Argentina in a good place, with some of the long-season corn reaching reproduction with full soil moisture. Rainfall continues to be light the next day or two across the south, but has been more limited this week. Rainfall is forecast to increase this weekend and should come at a regular clip for next week with several disturbances moving through. Weather continues to favor both corn and soybeans.

NEEDED PRECIPITATION FOR SOUTHERN EUROPE

The pattern continues to be active across Europe with the storm track more across the south and east through most of next week. Spain and Italy will certainly welcome the increase in precipitation for vegetative winter wheat.

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

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John Baranick