CONTEST STATUS - Updated: FRI ... 16-MAR-18 @ 7:40 PM EDT

Winter '17 / '18 - Snowfall Forecast Contests

19th Annual 'Regular Season'
- Interim Standings ... as of Snow Storm #6 here
- Forecaster Storm Stats ... as of Snow Storm #6 here

- Snow Storm #8
Synoptiscope in VCP32

- Snow Storm #7: 11-MAR-18
The Forecasts here
Preliminary STP verifications here

- Snow Storm #6: 07-MAR-18
FINAL Results here
Winning forecast issued by: Donald Rosenfeld

17th Annual 'Season-total'
Deadline for entries has passed
Forecasters' summary here

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

16th Annual 'Season-total'
FINAL results here

Wednesday, December 31, 2014

Winter '14 / '15 - Weakening Polar Vortex ==> Sudden Stratospheric Warming: UPDATE 5

"Overall, the easterly winds descending into the lower tropical stratosphere is continually favorable for redirecting tropospheric waves anomalously poleward, which increases the odds of interaction with the stratospheric polar vortex and hence increases the chances of a SSW event this winter. (AER)


CPC - Stratosphere-Troposphere Monitoring

First sign of sudden warming at 30 mb

30-hPa temperature change in a week in the Northern Hemisphere
The contour interval is 5 °C. The pink and light blue shadings indicate warming and cooling, respectively. The red shading denotes warming for values higher than 25 °C.
Tokyo Climate Center, Climate Prediction Division
NWP projecting a return to above-normal temperatures around mid-JAN.
Have they accounted for the effects from this SSW event?

No comments: