Friday, November 20, 2009

Winter '09 / '10 - National Wx Circus - Final Call

The Climate Prediction Center issued its final winter outlook (0.5 month long-lead) today.  Essentially unchanged from last month's outlook.

Cooler in the SE...warmer in the Northern and Central Plains...Northern Rockies...and Alaska.

Above normal precipitation along the southern tier of states ...consistant with typical +ENSO storm track.

+ENSO has reached moderate strength in recent weeks.  Latest Region 3.4 weekly temperature anomaly is  1.7°C.  The 12-week moving average is 1.06°C.

The CPC's forecast for below normal temperatures in the SE suggests a winter where the average Arctic Oscillation below zero.

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