Snowfall forecasting contests for 27 stations across New England and the Mid-Atlantic regions ... since 1999
Thursday, January 16, 2020
Winter '19 / '20 - Snow Storm #2: Outlook
UPDATE: 16-JAN-20 @ 7 PM EST
Progs trending away from a contest-worthy event.
Outside chance the evening runs will proffer a better solution. Otherwise ... we/re back to waiting.
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Original post (15-JAN-20 @ 2:55 PM EST)
Third time's a charm ... three on a match ... ménage à trois ... three to get ready ... or whatever; another chance for this winter/s second and long-awaited contest-worthy snow storm appears in the offing over the upcoming weekend.
Latest progs from national and international numerical weather prediction models covering the medium range distribute more than nuisance snowfalls over two-thirds of the forecast area.
Mixed precipitation associated with over-running / isentropic ascent and the possibility for development of a secondary surface LOW in the nearshore waters along the Gulf of Maine will present forecasters with multiple precipitation-type challenges.
Should short range model guidance continue the currently favorable medium-range scenario ...
Call for Forecasts would be issued on THU ... 16-JAN-20.
Deadline for entries would be 10:00 PM EST ... FRI ... 17-JAN-20
Verification would begin: 12:01 AM EST ... SAT ... 18-JAN-20
Image courtesy pivotaleweather
NEWxSFC web site here
Sunday, January 05, 2020
Winter '19 / '20 - 'Season-total' Snowfall Forecast Contest: DEC Totals
DEC-19 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 - 100th percentile
White ==> less than 75th and greater than 25th percentile (inter-quartile range)
Red ==> 0 - 25th percentile
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DEC Forecast Station Highlights
BDL
- DEC/s 22" was 224% above its monthly P-O-R-N of 9.8"
- almost half its season-total normal
ORH
- DEC/s 27.6" was 223% above its monthly P-O-R-N of 14.4"
- 46% of its season-total normal
ALB
- DEC/s 27.9" was 205% above its monthly P-O-R-N of 13.6"
- half its season-total normal
Biggest losers
ORF & RDU: 0"
Observed v P-O-R-N (less than 15%)
PHL: 0.1" v 3.6"
SBY: 0.05" v 1.6"
MDT: 0.2" v 5.6"
RIC: 0.1" v 1.9"
BWI: 0.3" v 3.1"
DCA: 0.4" v 2.7"
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Season-to-Date
DEC P-O-R-N contributes 203.3" (22%) toward the season-total snowfall (D-J-F-M) of 929".
DEC-19 observed snowfall: 224.6" (10% above P-O-R-N; 24% of season-total snowfall)
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Teleconnections
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
BDL
- DEC/s 22" was 224% above its monthly P-O-R-N of 9.8"
- almost half its season-total normal
ORH
- DEC/s 27.6" was 223% above its monthly P-O-R-N of 14.4"
- 46% of its season-total normal
ALB
- DEC/s 27.9" was 205% above its monthly P-O-R-N of 13.6"
- half its season-total normal
Biggest losers
ORF & RDU: 0"
Observed v P-O-R-N (less than 15%)
PHL: 0.1" v 3.6"
SBY: 0.05" v 1.6"
MDT: 0.2" v 5.6"
RIC: 0.1" v 1.9"
BWI: 0.3" v 3.1"
DCA: 0.4" v 2.7"
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Season-to-Date
DEC P-O-R-N contributes 203.3" (22%) toward the season-total snowfall (D-J-F-M) of 929".
DEC-19 observed snowfall: 224.6" (10% above P-O-R-N; 24% of season-total snowfall)
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Teleconnections

