Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

While currently in a Neutral ENSO environment over the Northern Hemisphere, El Nino conditions are expected to develop and strengthen slightly through the winter. What does this mean for Colorado & the high plains region? It means the probability for higher than average precipitation is expected to increase from November through April.

Although the probability outlook does not represent the magnitude of actual precipitation amounts, it does indicate that a more active and unsettled winter pattern is likely to develop through the winter over the southern United States along with the southern & Central Rockies.

Statistically, northeast Colorado receives higher than average precipitation for the winter season during El Nino conditions as deep upslope conditions develop from organized storm systems which track into eastern Colorado & central US plains from the 4-Corner's region of Arizona, New Mexico, Utah and Colorado. Also during El Nino environments, the northern and central mountains receive near to even slightly below average precipitation due to drier and weaker northwest flow aloft. Denver's snowiest month is March.

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Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Winter Precipitation Outlook - Developing El Nino Conditions thru the Winter