CONTEST STATUS - Updated: WED ... 13-DEC-17 @ 8:30 PM EST

Winter '17 / '18 - Snowfall Forecast Contests
19th Annual 'Regular Season'
Snow Storm #1
Synoptiscope in VCP32

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

Monday, January 29, 2007

FWIW - Verification of NCEP Week2 5H Z Anoms


Remember this?


It/s NCEP/s Ensemble Mean forecast for 500 mb height anomalies VT 1/26/2007...issued January 12. So...how good were the action center predictions?

500 mb height anomalies

Negative height anomalies...
...over NE CONUS verified farther N and E over the CN Maritimes
...over SW CONUS had minor displacement error N and W
...along and W of the IDL verified along IDL but farther E over the Aluetians
...over Greenland missed the NAO ridge.

Positive height anomalies...
...NW CN verified spot on
...ATL along ~40°N missed broad trof from CN Maritimes to NW Africa.

Good skill with PNA-type ridge-W...but completely missed the NAO dipole.

500 mb heights

No comments: