Which is the rainy season for the south and midwest

Storms will bring a threat of heavy rain with disruption to planting progress. Southern Brazil had moderate to heavy rain during the past weekend. This is favorable for corn and soybeans ahead of harvest. Elsewhere, a drier pattern is favorable for soybean harvest progress along with planting of the safrinha corn crop.

Northern and central Argentina crop areas had beneficial rainfall during the past weekend. Another system later this week will provide more widespread moderate to heavy showers to the country for filling crops. This moisture will offer minimal benefit for drought-affected spring wheat, row crops and pastures. Periods of showers continue in store for the Delta during the next five days.

Crop conditions are mostly favorable. In the Southeast, Tropical Storm Elsa rain will move from south to north this week. Frontal system showers will take over late in the week and for the upcoming weekend.

Overall, conditions are favorable for developing crops. In the Canadian Prairies, a cutoff weather system will bring light rain to the region. However, dry areas will have very little benefit. Temperatures will be variable, with above- to much-above-normal levels in northern and western sectors. Even lackluster weather in California disappeared during the heart of winter with numerous storms affecting the Sierra Nevada with snowfall large enough to measure in feet multiple times.

Record-setting snowfall in the Seattle area has rounded out the list of amazing weather noted so far this winter. The frequent bouts of snow, rain and ice storms in the Midwest have left the soil saturated over almost the entire eastern half of the United States. Flooding was noted in the past few weeks in the Ohio, Tennessee and lower Mississippi River basins as well as the northeastern United States and southeastern Canada.

It is not unusual to see large parts of the eastern United States with saturated soil in mid-to-late winter, but recent flooding was a concern. Some wheat fields were damaged, and with ongoing cool weather into the first week of March it is quickly becoming a general consensus that at least some spring planting will be delayed this year.

The delay in planting is expected with the knowledge that the next few weeks will bring a continuation of the active weather pattern that has been plaguing the United States and southeastern Canada since November. The weather pattern is not significantly different from that of , or , and in each of those years the active jet stream proved to be quite resilient through the balance of winter and into spring.

The only weather feature that will be going away in the balance of February and March will be the Polar Vortex. That means the jet stream may not be suppressed as far to the south as long as it has been recently. February will end with cooler-than-usual air present in much of the contiguous United States and across portions of Canada. As March rolls around, Canada and the northwestern United States will begin warming.

Cool air will be trapped lingering in the Midwest, Great Plains and interior southeastern states. A big shift toward warmer weather is expected in the second week of March that will bring warmer air back to many areas in North America. The returning warmer air will allow the jet stream to shift northward. That likely will take the path of greatest precipitation farther north as well.

Frequent bouts of rain and some occasional snow will fall from the southwestern United States across the central and northeastern Plains to the Midwest.