CONTEST STATUS - Updated: SAT ... 14-APR-18 @ 9 PM EDT

Winter '17 / '18 - Snowfall Forecast Contests

19th Annual 'Regular Season' Snowfall Forecast Contest
- FINAL Results here
1st Place: Brad Yehl
2nd Place: Don Sutherland
3rd Place: NWS ER WFOs
HM: Herb @MAWS

17th Annual 'Season-total' Snowfall Forecast Contest
- FINAL Results here
1st Place: Don Sutherland
2nd Place: Mitchel Volk
3rd Place: Brad Yehl
HM: TQ
Climo: 5th place

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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, February 11, 2009

Sudden Stratospheric Warming - 1985 v. 2009

The most recent SSW of similar magnitude to the one occurring now...as far as depth of penetration toward the troposphere was 1985. That event started late DEC 1984 and persisted for about 4 weeks.

Here/s how the 10 mb level looked that go'round...

Photobucket

The anti-cyclonic circulation dominated for all of two days.

Contrast and compare to current events...

Photobucket

The 2009 event is much more robust than what happened in 1985....lasting at least 7x longer. Remember also...the on-going SSW is happening while QBO is west (positive) and the solar cycle is at minima...a rare convergence of events...indeed.

Previous posts on the 2009 SSW event here.

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