CONTEST STATUS - Last update: THU ... 20-APR-17 @ 9:40 PM EDT

Winter '17 / '18 - Snowfall Forecast Contests

19th Annual 'Regular Season'

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17th Annual 'Season-total'

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Winter '16 / '17 - Snowfall Forecast Contests
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18th Annual 'Regular Season'
FINAL results here
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16th Annual 'Season-total'
FINAL results here

Wednesday, December 22, 2010

Winter '10 / '11 - Stratospheric Warming - Another Try


Last signal failed to pan-out.  Probability a long-shot given the poor odds for warmings with QBO in its positive / west phase....except when sunspot activity is high.

ECMWF hinting again at a break in the polar vortex (PV) last next week.

Note 1) the PV's pending split with separate circulation developing over the pole / central Russia and 2) the yellow area north-west of the Hudson Bay.  The yellow indicates warmer temperature at 100 mb which implies a very cold troposphere.  The slug of warm stratospheric air originated --- and is usually found -- over Siberia.

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