CONTEST STATUS - Updated: SUN ... 10-JAN-21 @ 3:45 PM EST

Winter '20 / '21 - Snowfall Forecast Contests
22nd Annual 'Snow Storm' Snowfall Forecast Contest

Snow Storm #2
Synoptiscope in VCP 32

Snow Storm #1
FINAL Results here

20th Annual 'Season-total' Snowfall Forecast Contest
Deadline for entries has passed.
The Forecasts! here
DEC Snowfall Totals here

Winter '19 / '20 - Snowfall Forecast Contests
21st Annual 'Snow Storm' Snowfall Forecast Contest
Season ended as quickly as it started.
No winner this go'round ... too few storms (minimum of three required)

19th Annual 'Season-total' Snowfall Forecast Contest
FINAL Results here

Sunday, January 10, 2021

Winter '20 / '21 - 'Season-total' Snowfall Forecast Contest: DEC Totals

DEC-20 snowfall summary by forecast station.
Rank ordered descending by percent of monthly period-of-record-normal (P-O-R-N).

Green ==> 75th - 100th percentile
White ==> less than 75th and greater than 25th percentile (inter-quartile range)
Red ==> 0 - 25th percentile

DEC Forecast Station Highlights
15 stations above normal monthly snowfall
5 stations at least 200% of monthly normal

30" above normal
68% of its normal season-total snowfall

53% of its normal season-total snowfall

47% of its normal season-total snowfall

Biggest Losers
RDU ... DCA ... ACY ... and ORF observed less than 10% of normal monthly snowfall


DEC P-O-R-N contributes 203.3" (22%) toward the season-total snowfall (D-J-F-M) of 929".
DEC-20 observed snowfall:  292" (44% above P-O-R-N; 31% of season-total snowfall)

Image courtesy NOHRSC @


AO / NAO / PNA data


JungleCat said...

What are thoughts on January 23-27 for good snow chances?

TQ said...

i think the period between 23-27 is two weeks away. nwp doesn't have much skill so far out. at least we're not staring down the barrel of a fatty ridge sitting over the SE.

overall ... a ridge-w / trof-e long wave pattern almost always holds promise for snowstorms as long as the wavelength shortens which keeps the storm(s) closer to the coast.