CONTEST STATUS - Updated: SAT ... 17-APR-21 @ 5 PM EDT

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

20th Annual 'Season-total' Snowfall Forecast Contest
FINAL results here

DEC snowfall totals here
JAN snowfall totals here
FEB snowfall totals here
MAR 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 31, 2021

Winter '20 / '21 - Snow Storm #2: The Forecasts!

Rookie      4
Intern      -
Journey      -
Senior      15
GOVT      1
PWSP      1
TOT      21

NEWxSFC welcomes Rookie Forecasters Auntie ... Kmc134 ... and snowtoriousBIG.

Forecasters rank ordered by ascending storm-total precipitation (STP)

BLUE ==> 1st quartile
RED ==> 4th quartile
WHITE STP cells fall between the 1st and 4th quartiles


Heaviest snowfall (+12") consensus along and to the right of MDT - ABE - ORH - BDR - JFK - EWR - PHL - MDT.
Lollypop expected at MDT (14.6")

Teleconnections more-or-less playing their 'expected' roles (CORR:  01-FEB-20 PNA)

Forecasters' station-by-station forecasts posted to the Contest/s web site here.

Direct link to the table of forecasts here.

Saturday, January 30, 2021

Friday, January 29, 2021

Winter '20 / '21 - Snow Storm #2: Call for Forecasts!

Six long weeks after the start to NEWx/s 22nd Annual 'Snow Storm' Forecasting Contest ... Snow Storm #2 finally comes a'calling.

Amplifying mid-level flow ... shortening wavelength ... hi-latitude blocking ... Miller 'B' mid-latitude cyclogenesis ... Arctic wedge ... mixed-precipitation type issues ... and a long-duration nor'easter just like days of yore.

Even the Mid-Atlantic and a long stretch of the I-95 corridor are in play this go'round.

Enter your forecast at the NEWxSFC/s home page at
Follow the top-of-page link from 'Enter Snow Storm Forecast'

Forecast element: each station/s storm-total snowfall
Deadline for entries: 10:00 PM EST ... SAT ... 30-JAN-21
Verification begins: 12:01 AM EST ... SUN ... 31-JAN-21
Verification ends: 11:59 PM EST on the day when flakes stop accumulating.

You also get the chance to see how well your forecast stacks up against NWS Eastern Region Weather Forecast Offices. Turns out they/ve been fairly easy to beat!

If you are issuing your first forecast this winter ... or you entered the 'season-total' forecast contest ... you/ll need to create an account -- user name / password / valid e-mail (if you want a copy of your forecast sent to your Inbox).

The snowfall forecasting contest for Snow Storm #2 may be cancelled prior to the deadline if at least six-to-eight stations are unlikely to observe at least a 4" storm-total snowfall.

As always ... there/s no cost ... no fee ... no advertising ... or annoying requests for personal information to enter a forecast. It/s just a fun exercise for winter wx enthusiasts to see who can make the best synoptic-scale snowfall forecast.

Thursday, January 28, 2021

Winter '20 / '21 - Coastal Teaser #2

Long-duration and ginormous Miller 'B' storm complex beginning to loom large in the window as an otherwise disappointing JAN comes to a close.

Contest-worthy nor'easters have been in short supply of late so this is a welcome development.

Latest NWP guidance points toward snow beginning to accumulate over southern portions of the forecast area early SUN AM and continuing through the first few days of FEB over northern stations.

Should events unfold as advertised currently ...
Call for Forecasts:  FRI ... 29-JAN-21
Deadline for entries:  10 PM EST ... SAT ... 30-JAN-21
Verification beginning:  12:01 AM EST ... SUN 31-JAN-21
Verification ending: 11:59 PM EST the day when flakes stop accumulating 

Could be the start of an hyper-active period as heights progged to rise over the Pole and PNA region while AO remains below zero and the displaced PV drifts toward Greenland ...

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

Saturday, January 2, 2021

Winter '20 / '21 - Coastal Teaser #1

Not happenin' ...

:  01-JAN-21 @ 6:41 PM EST

Today/s 12z / 18z progs suggest too few stations in play for a contest-worthy snow storm.

Will evaluate 00z / 06z runs just in case ...

Originally posted:  31-DEC-20 @ 6:41 PM EST

Cyclogenesis progged early this weekend in the Gulf of Mexico on the trailing end of a cold front attending FRI/s storm moving NE through the Mid-West ... Great Lakes ... and New England may turn into a long duration contest-worthy snow storm for the northern half of the forecast area come SUN.

Should the present trend in NWP output continue ...

Call for Forecasts:  FRI ... 01-JAN-21
Deadline for entries:  10 PM EST ... SAT ... 02-JAN-21
Verification period:  12:01 AM EST ... SUN ... 03-JAN-21 till flakes stop accumulating

Watch this space ...