IRI Forecast Raises Summer Midwest Precipitation

Moisture prospects for the Midwest are notably wetter in the latest IRI depiction than in recent public and private provider forecasts, including the DTN seasonal forecasts as recently as May 12, which called for below-normal precipitation over the northern and central U.S., including the Midwest. In addition to the revision showing the majority of the Midwest with higher chances for at least average precipitation, central Saskatchewan in the Canadian Prairies is also tagged for enhanced precipitation in the IRI forecast.

On the other side of the precipitation spectrum, the IRI forecast has below-normal amounts for the summer over northern Minnesota along with most of the Plains, central and western Texas, and the western U.S. Only a swath of the Intermountain West has a chance for above normal precipitation.

It will be interesting to see how forecast updates from other sources, scheduled for release during the upcoming week of Monday, May 17-Friday May 24, display the central North America precipitation outlook. For example, frequently the NOAA Climate Prediction Center (CPC) forecast closely tracks the IRI depiction. If that occurs again, there could be more attention given to the prospect for useful summertime precipitation; and in addition, higher chances for trendline or above trendline corn and soybean yields.

Bryce Anderson can be reached at

Follow him on Twitter @BAndersonDTN

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