CONTEST STATUS - Updated: TUE ... 01-SEP-20 @ 11 AM EDT

Winter '20 / '21 - Snowfall Forecast Contests
22nd Annual 'Snow Storm' Snowfall Forecast Contest
Season starts when flakes start a'flyin'
Watch this space

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20th Annual 'Season-total' Snowfall Forecast Contest
Window for entries opens on 01-NOV-20 @ 12:01 AM EDT and closes on 30-NOV-20 at 11:59 PM EST

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Winter '19 / '20 - Snowfall Forecast Contests
21th 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)

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

Saturday, April 11, 2020

Winter '19 / '20 - 19th Annual 'Season-total' Snowfall Forecast Contest: FINAL Results

Congratulations to Herb @MAWS for his 1st Place finish.
Herb also placed first in '03 / '04 and '09 / '10.

Forecasters ranked by their Total Absolute Error (TAE)
The '%MPRV over PORN' metric indicates how well the forecaster did compared to climatology [(Period-of-Record Normal (PORN)].  The most skillful forecasts beat climatology 

RED ==> 75th percentile
WHITE ==>  interquartile range (>25th & < 75th percentiles)
BLUE ==> 25th percentile

Forecasters' stations with the lowest absolute error


Season-total snowfall from all stations (551") came in 41% below the period-of-record normal (929").  Winter '19 / '20 ranks 15th among other Contest years since winter '04 / '05 ... the season when BGR and BGM were added to the station list.

Forecaster verification table at the Contest web site (direct link)

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PRIZES
1st place prize (delivered post-paid right to Herb @MAWS front door):
"Snow in America" by Bernard Mergan (hardcover) and
"The Snow Booklet" by Nolan J. Doesken and Arthur Judson (paperback) and
... the august title 'Chief Season-total Snowfall Forecaster' for Winter '20 / '21 and
... a well-deserved place of honor with past Contest winners.

2nd place prize (delivered post-paid right to Shillelagh/s front door):
"New England Weather, New England Climate" by Greg Zielinski and Barry Keim (paperback)

3rd place prize (delivered post-paid right to Jessica_Cain/s front door):
"The Snow Booklet" by Nolan J. Doesken and Arthur Judson (paperback)

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Prizes winners should contact me (newxsfc [at] comcast [dot] net) with a USPS address.

Friday, April 10, 2020

Thursday, April 9, 2020

Winter '19 / '20 - 19th Annual 'Season-total' Snowfall Forecast Contest: Preliminary STP Verification

Preliminary sum-total season snowfalls for the verification period 01-DEC-19 though 31-MAR-20 collected from monthly climate bulletins (CLMxxx; CXUS51 ... CXUS52).


One forecast station (4% of all stations) with bonus season-total snowfalls [more than Period-Of-Record-Normal (P-O-R-N)].
Rank ordered descending by percent of P-O-R-N.

Green ==> 75th percentile
White ==> Interquartile range (< 75th & > 25th percentiles)
Red ==> 25th percentile

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Please report any errors in Comments along with a link to the correct data.
FINAL results expected NLT SAT evening.

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Winter '19 / '20 monthly snow totals
DEC:  Winter '19 / '20 - Season-total Snowfall Forecast Contest: DEC Totals
JAN:  Winter '19 / '20 - Season-total Snowfall Forecast Contest: JAN Totals
FEB:  Winter '19 / '20 - Season-total Snowfall Forecast Contest: FEB Totals
MAR:  Winter '19 / '20 - Season-total Snowfall Forecast Contest: MAR Totals

Wednesday, April 8, 2020

Winter '19 / '20 - 'Season-total' Snowfall Forecast Contest: MAR Totals

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


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

Obs reported as 0.05" implies Trace

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MAR Forecast Station Highlights
No station observed more than 100% of its monthly normal snowfall.

Biggest losers (0")
PHL
BWI
ACY
DCA
RIC
SBY
RDU
ORF

P-O-R-N v. Observed (less than 15%)
PVD:  (6.8'' v. 0.4'')
IAD:  (3.5'' v. 0.05'')
NYC:  (4.9'' v. 0.05'')
EWR:  (5.1'' v. 0.05'')
BDR:  (5.5'' v. 0.05'')
ABE:  (6'' v. 0.05'')
MDT:  (6.5'' v. 0.05'')
BOS:  (8'' v. 0.05'')

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Season-total

MAR P-O-R-N contributes 184" (20%) toward the season-total snowfall (D-J-F-M) of 929".
MAR-20 observed snowfall:  66" (36% of P-O-R-N; 7% of season-total snowfall)

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Teleconnections
No contest-worthy storms in MAR.

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Winter '19 / '20 - Season-total Snowfall Forecast Contest: DEC Totals
Winter '19 / '20 - Season-total Snowfall Forecast Contest: JAN Totals
Winter '19 / '20 - Season-total Snowfall Forecast Contest: FEB Totals