Commodities Market Impact Weather

MINNEAPOLIS (DTN) -- Two big storm systems and a blast of arctic air in the U.S. and continued good weather in most of South America are the weather factors driving the markets Tuesday.

HEAVY SNOW TUESDAY, SIMILAR STORM LATER THIS WEEK FOR MIDWEST

A storm system is barreling through the Midwest Tuesday and Wednesday with widespread impacts including heavy rain and snow and near-blizzard conditions. Another large storm will follow a similar path for Thursday night through Saturday night, which could hit the same areas again with another round of heavy snow and strong winds for blizzard conditions. That system will bring a blast of arctic air into the region that should last through next week.

CENTRAL AND SOUTHERN PLAINS GET POLAR VORTEX VISIT AFTER ANOTHER STORM

A monster storm system is leaving Tuesday but dumped heavy snow in a large band from southwest to northeast. The winds were very strong, producing a blizzard. Winds will stay elevated into the afternoon. Another major winter storm will develop Thursday, and though the precipitation will be widespread and the track will be similar, the impacts from this storm are forecast to be less than the first one. Only some limited areas of moderate to heavy snow are forecast into Friday but could again come with stronger winds. And the storm will bring extremely cold, arctic air going into next week. Models differ on the details of the cold and how long it will last, but is likely to stick around through next week to some degree. A third system may form Sunday into Monday with more wintry impacts for the region.

NORTHERN PLAINS GETTING READY FOR POLAR VORTEX

A large system missed off to the south but clipped southeast South Dakota with some heavy snow. A weak storm moving through Tuesday and Wednesday will bring lighter snow, but a blast of arctic air will follow for Thursday and continue through next week, moderating next weekend. There is some discrepancy in the forecast around the middle of next week, where temperatures may not be so harsh for a day as a clipper-type system moves through.

HEAVY RAIN FOR DELTA

A storm brought heavy rain through the Delta on Monday and showers linger in the area for Tuesday. Another large storm will follow a similar track with similar impacts Friday but will be followed by a burst of arctic air. That could set the stage for a major winter storm for Sunday and Monday that would bring ice and snow to at least northern areas if not most of the region. The heavy precipitation with these storms is favorable for further reducing drought and building up water levels in the Mississippi River system.

RAINFALL WANING IN NORTHEAST BRAZIL, PICKING UP ELSEWHERE

Scattered showers will continue in central Brazil all week long, though the coverage and intensity are forecast to lessen later in the week and weekend from east to west. Those showers will still be in the region next week, however. Across the south, a front coming up from Argentina should set off waves of showers in the region this week, favorable for filling soybeans and developing other crops. Some of the areas like Mato Grosso do Sul and Sao Paulo that were dry last week will see much better rainfall this week.

MORE SHOWERS FOR ARGENTINA

Widespread scattered showers fell over Argentina this weekend and continues in the north through Thursday as a front slowly slides northward. The widespread rainfall continues to favor developing corn and soybeans. The front will then clear out, but additional waves of showers are forecast across the country through next week, which maintains the overall favorable conditions.

EUROPE STAYING ACTIVE

Scattered showers continue across southern Europe for the next couple of days with a storm system, favorable for vegetative winter wheat in Spain and Italy that had been drier lately. The pattern stays active across the continent with more storm systems next week that could be more widespread across the region.

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

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