Winter '13 / '14 - Storm #4: Preliminary Verification

Preliminary storm-total snowfalls for WED and THU from CDUS41...CXUS51...and PNS bulletins.

Good coverage and reporting.

BDL SLR contaminated by FZRA

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Two new daily records:

WED...05-FEB-14

BOS - 13.2" (3"; 1976)

BTV - 9.3" (7.9"; 1968)

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Please report any errors in Comments along with a link to the correct data.

Final results SAT evening before 9 PM EST

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Winter '13 / '14 - Storm #4: The Forecasts

Rookies  1
Journeyman  1
Senior  11
TOT 13

266 station forecasts

Forecasts are ranked by their storm-total precipitation (STP).
BLUE ==> 25th percentile.
RED ==> 75th percentile.
STP cells without color are between the 25th and 75th percentile

Heavy snowfall (+6") consensus for an interior NE event with lollypops expected at CON and ALB.

Teleconnections upside down.

Everyone/s station-by-station forecast at the Contest/s web site.

Winter '13 / '14 - Storm #4: RAW Forecasts

Here.

Winter '13 / '14 - Storm #4: Call for Forecasts

LGA
10-FEB-1969

Forecast element: storm-total snowfall
Deadline for entries:  10:30 PM EST TUE...04-FEB-14
Verification begins:  12:01 AM EST WED...05-FEB-14
Verification ends:  when the snow stops falling

Enter your forecast at the Contest's home page here.

Follow the link from 'Enter Storm Forecast.'

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As always...there/s no cost...or fee...or 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.

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).

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Want to be notified via e-mail when the 'Call for Forecast' is issued?
Send requests to 'newx at newx-forecasts dot com'.

Winter '13 / '14 - Coastal Teaser #4

Promising contest-worthy event mid-week for northern forecast stations.

If progs continue their current trends...
A 'Call for Forecasts' would be issued MON...03-FEB-14.
Deadline for entries:  10:30 PM EST TUE...04-FEB-14

Winter '13 / '14 - Storm #3: Final Results

SUMSQ: sum of square errors

STP: storm-total precipitation error

TAE: total absolute error

AAE: average absolute error (number): category rank

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Full forecast verification and summary for Storm #3 here.

Winter '13 / '14 - Storm #3: Preliminary Verification

Preliminary storm-total snowfalls for Tuesday and Wednesday from CDUS41...CXUS51...and PNS bulletins.  Good coverage and reporting.

SBY 3" STP reported in PNSAKQ.

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Ten new daily records.

TUE...21-JAN-14
PHL - 13.5" (3.4"; 1917)
EWR - 10" (4.5"; 2011)
ISP - 9.2" (5"; 2000)
IAD - 8.5" (3.2"; 2001)
JFK - 6.8" (5.8"; 2001)
BWI - 5.1" (2"; 1982)
DCA - 3.8" (3.5"; 1982)
ACY - 2.2" (1.8"; 1982)
RIC - 2" (1.8"; 1918)
ORF - 2" (1.4"; 1994)

Please report any errors in Comments along with a link to the correct data.

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Final results delayed until Saturday evening.

Winter '13 / '14 - Storm #3: The Forecasts

15 forecasters
Rookies:  1 (Welcome BTRWx!)
Interns:  2
Journeymen:  1
Senior:  11

382 station forecasts.

Forecasts are ranked by their storm-total precipitation (STP).
BLUE ==> 25th percentile.
RED ==> 75th percentile.
STP cells without color are between the 25th and 75th percentile.

Heavy snowfall (+6") consensus for a mid-Atlantic and coastal NE event with the lollypop expected at HYA.

The AO and PNA teleconnections again proving their importance.

Flat lined NAO MIA again.

Everyone/s station-by-station forecast at the Contest/s web site.

Winter '13 / '14 - Storm #3: RAW Forecasts

Here

Winter '13 / '14 - Storm #3: Call for Forecasts

DC Knickerbocker Storm
27-JAN-22

UPDATE: corrected dates for entry deadline and start of verification period.

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Big changes in the overnight progs present opportunity for another contest and a short deadline for entries.

Even though QPF is somewhat skimpy, Arctic air will provide ideal environment for high-fluff factor and contest-worthy snows.

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Forecast element: storm-total snowfall
Deadline for entries:  10:30 PM EST MON...20-JAN-14
Verification begins:  12:01 AM EST TUE...21-JAN-14
Verification ends:  when the snow stops falling

Enter your forecast at the Contest's home page here.
Follow the link from 'Enter Storm Forecast.'

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As always...there/s no cost...or fee...or 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.

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).

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Want to be notified via e-mail when the 'Call for Forecast' is issued?
Send requests to 'newx at newx-forecasts dot com'.

Winter '13 / '14 - Storm #2 - Final Results

1st - donsutherland1
SUMSQ:	99.9
SUMSQ Z:	-1.269
STP:	16.1	(7)
TAE:	43.1	(1)
AAE:	1.80	(1)
2nd - Herb@MAWS
SUMSQ:	130.2
SUMSQ Z:	-1.021
STP:	20.6	(9)
TAE:	47.0	(2)
AAE:	1.96	(2)
3rd - weatherT
SUMSQ:	173.4
SUMSQ Z:	-0.667
STP:	10.8	(6)
TAE:	53.2	(4)
AAE:	2.13	(4)
HM - Brad Yehl
SUMSQ:	186.2
SUMSQ Z:	-0.562
STP:	3.5	(2)
TAE:	56.8	(5)
AAE:	2.27	(5)

SUMSQ: sum of square errors

STP: storm-total precipitation error
TAE: total absolute error
AAE: average absolute error
(number):  category rank

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Full forecast verification and summary for Storm #2 here.

Winter '13 / '14 - Storm #2 - Preliminary Verification

Preliminary storm-total snowfalls for Thursday and Friday from CDUS41...CXUS51...and PNS bulletins.  Good coverage and reporting.

An apparent SN:H20 outlier at BOS; however, vicinity reports suggest STP is accurate.

No climate snowfall data for CON reported on SAT...03-JAN.  DAY2 snowfall estimated at 3.35" based on 0.18 precipitation at SN:H20 of ~18-to-1 (DAY2 average SN:H20 for PWM and ORH)

SBY 2.75" STP estimated from PNSPHI vicinity reports at SELBYVILLE (4")...DELMAR (4.5)...LAUREL (5.1")...BRIDGEVILLE (6.1")...KGED precipitation (0.45")...and SBY precipitation (0.21") and National Operational Hydrologic Remote Sensing Center  - Interactive Snow Information.

Twelve new daily records.
Back-to-back records at ACY...EWR...ISP...and JFK

THU...02-JAN-14
BOS - 10.6" (8"; 1904)
ALB - 7.1" (6.8"; 1987)
ISP - 4.7" (3"; 2010)
ACY - 3.7" (1.1"; 1962)
EWR - 3.2" (2"; 1978)
IAD - 3" (2"; 1978)
JFK - 2.4" (1.1"; 1984)

FRI...03-JAN-14
ISP - 6.5" (2.1"; 2010)
EWR - 5.6" (1.2"; 1981)
JFK - 5.5" (1.2"; 1988)
PHL - 3.4" (1.5"; 1988)
ACY - 2.8" (0.4"; 1988)

Please report any errors and drop a link to the correct data in Comments.

Final results available SUN evening.

Winter '13 / '14 - Storm #2: The Forecasts!

13 forecasters
Rookies:  0
Interns:  2
Journeymen:  1
Senior:  10

319 station forecasts.

Forecasts are ranked by their storm-total precipitation (STP).
BLUE ==> 25th percentile.
RED ==> 75th percentile.
STP cells without color are between the 25th and 75th percentile.

Heavy snowfall (+6") consensus for a southern NE event.

Near-blizzard conditions and heavy snowfall expected, yet -NAO is MIA again.
The AO and PNA teleconnections again proving their importance.

Everyone/s station-by-station forecast at the Contest/s web site.

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Corrected to remove duplicate forecasts.
Web site forecasts updated...too.

Winter '13 / '14 - Storm #2: RAW Forecasts

Here.

Winter '13 / '14 - Storm #2: Call for Forecasts

Reading...PA
JAN-48

Apparent stream-phasing in store for Storm #2.
A dicey scenario fraught with danger for forecasters if the atmosphere fails to follow the script.

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Forecast element: storm-total snowfall
Deadline for entries: 10:30 PM EST WED...01-JAN-14
Verification period begins: 12:01 AM EST THU...02-JAN-14
Verification period ends: when the snow stops.

Enter your forecast at the Contest's home page here.
Follow the link from 'Enter Storm Forecast.'

---
As always...there/s no cost...or fee...or 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.

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).

---
Want to be notified via e-mail when the 'Call for Forecast' is issued?
Send requests to 'newx at newx-forecasts dot com'.

Winter '13 / '14 - Coastal Teaser #2

A Miller 'A' contest-worthy event possible later in the week.

If all falls into place, a 'Call for Forecasts' will be made TUE evening...31-DEC-13.
Deadline for entries would be 10:30 PM EST WED...01-JAN-14.
Verification would begin 12:01 AM EST THU...02-JAN-14.

Winter '13 / '14 - White Christmas

Area Covered By Snow: 41.7%

Winter '13 / '14 - Storm #1: Final Results

Times Square
13-DEC-33

1st - Herb@MAWS
SUMSQ:	67.10
SUMSQ Z:	-0.980
STP:	8.70	(6)
TAE:	30.10	(3)
AAE:	1.31	(3)
2nd - TQ
SUMSQ:	90.43
SUMSQ Z:	-0.873
STP:	7.75	(5)
TAE:	31.95	(4)
AAE:	1.52	(4)
3rd - donsutherland1
SUMSQ:	109.74
SUMSQ Z:	-0.783
STP:	12.60	(8)
TAE:	29.40	(2)
AAE:	1.23	(1)
HM - kevinmyatt
SUMSQ:	112.63
SUMSQ Z:	-0.770
STP:	17.75	(11)
TAE:	36.35	(6)
AAE:	1.73	(6)

SUMSQ: sum of square errors

STP: storm-total precipitation error

TAE: total absolute error
AAE: average absolute error
(number):  category rank

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Full forecast verification and summary for Storm #1 here.

Winter '13 / '14 - Storm #1: Preliminary Verification

Preliminary storm-total snowfalls for Saturday and Sunday from CDUS41...CXUS51...and PNS bulletins. BGR appears low given reports of 10" in the immediate vicinity.

Three new daily records.

SAT...15-DEC-13
EWR - 4.3" (4.2"; 1951)
ISP - 4.1" (1.2"; 1988)

SUN...16-DEC-13
PWM - 10.6" (10.3"; 2003)

Please report any errors and drop a link to the correct data in Comments.

Final results available TUE evening.

Winter '13 / '14 - Storm #1: The Forecasts!

18 forecasters for this winter/s inaugural event.
Interns:  5
Journeymen:  1
Senior:  12

Forecasts are ranked by storm-total precipitation (STP).

BLUE ==> 25th percentile.

RED ==> 75th percentile.

STP cells without color are between the 25th and 75th percentile.

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Consensus for heaviest snows over the northern tier of forecast stations.

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Once again, teleconnections at odds with everything we think we know about them and decent snows in the NE US.

Everyone/s station-by-station forecast at the Contest/s web site.

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Promotions

New Interns (second year forecasting)

JDG63

kevinmyatt

Quagmireweathercentral

snowcat918

Wxoutlooks

New Journeymen (third year forecasting)

Brad Yehl

New Seniors (fourth year forecasting)

bruced39

MarkHoffman

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Special thanks to Senior forecaster Donald Rosenfeld for his continued support of the NEWxSFC contest.  Donald has hosted the Contest web site for many years and is responsible for its on-line forecast entry capabilities.

Winter '13 / '14 - Major Snowstorm Paralyzes Cairo and Jerusalem

First Time In 112 Years.

More...

Winter '13 / '14 - Storm #1: RAW Forecasts

Here.

Winter '13 / '14 - Storm #1: Call for Forecasts

NYC
12-13-1960

Secondary LOW expected to develop off the Jersey coast on late Saturday evening and hurl moisture-rich Atlantic air into an arctic air mass parked over the Canadian maritime Provinces.

Nor'easter expected to track across the famed 40/70 benchmark early Sunday and deliver contest-worthy snows over much of the forecast area.

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Forecast element: storm-total snowfall
Deadline for entries: 10:30 PM EST FRI...13-DEC-13
Verification period begins: 12:01 AM EST SAT...14-DEC-13
Verification period ends: when the snow stops.

Enter your forecast at the Contest's home page here.  Follow the link from 'Enter Storm Forecast.'

---
As always...there/s no cost...or fee...or 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.

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).

Winter '13 / '14 - Coastal Teaser #1

Winter is off to a flying start featuring a pair of compact snowstorms over the forecast area during the past week.

The season's inaugural contest may get underway this weekend!

Low latitude storm progged to advance toward the east coast on Friday with secondary development off the Jersey coast late Saturday.

Today/s outlook from the Weather Prediction Center giving low odds on a contest-worthy event; however...it/s worth keeping an eye on.

Call for Forecast possible Thursday evening.

Deadline for entries would be 10:30 PM EST Friday evening.