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April Forecast – Temperature & Precipitation for NW March 23, 2011

Posted by mikeheard in Uncategorized.
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April Temperature Outlook

CPC April Precipitation Forecast

A weakening La Nina continues to impact the weather patterns across the western US through March with cooler and wetter than normal conditions for most areas in Montana.

Hardest hit regions in the state are the far northern half of Montana with above normal snowpack at all levels and a serious threat of flooding once all that snow melts up north.

Typically, in a normal season, snowpack will continue to accumulate up to about April 15th and thereafter the accumulation to melting ratio’s start to favor more melting than accumulating. Looking at the Climate Predicition Center long range forecast for April (graphics above) we are likely to see more of the same, below normal temperatures and above normal precipitation across Montana. There is a 40% to 50% chance that average temperatures for April will be below normal and a 30% to 40% chance that we will experience above normal precipitation.

 

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