Complete Results @ http://www.newx-forecasts.com/

Follow the left-side link from 'Storm Contest Verified Forecasts’ – Snow Storm #3 to see the complete station forecast verification table.

 

In the table...

Yellow cells indicate the best score in category. 

Forecast STP is yellow if within +/- 5% of observed STP.

 

Blue (Red) cells indicate the top (lower) 25% percentile.

 

SUMSQ:  sum of square errors

STP:  storm total precipitation

TAE:  total absolute error
AAE:  average absolute error

 

Final Standings - all Forecasters

Forecaster

Class

4casts

Sum Square

STP

TOTAL Absolute

AVG Absolute

 

 

 

 

 

Error

Error Z

%MPROV over AVG

Rank

109.9

Error

Error Z

%MPROV over AVG

Rank

Error

Error Z

%MPROV over AVG

Rank

Error

Error Z

%MPROV over AVG

Rank

RSQ

RSQ Z

%MPROV over AVG

Rank

Forecaster

Brad Yehl

Journeyman

27

140.5

-1.171

54.2%

1

140.9

31.00

-0.472

28.1%

5

48.5

-1.132

30.5%

1

1.80

-1.197

31.4%

1

74.0%

1.769

45.8%

1

Brad Yehl

donsutherland1

Senior

27

164.2

-1.004

46.4%

2

143.8

33.95

-0.358

21.3%

7

52.6

-0.911

24.5%

3

1.95

-0.974

25.6%

3

68.6%

1.356

35.1%

2

donsutherland1

emoran

Senior

26

170.9

-0.957

44.3%

3

114.2

4.30

-1.512

90.0%

1

49.0

-1.106

29.8%

2

1.88

-1.069

28.1%

2

57.9%

0.542

14.0%

5

emoran

Herb@MAWS

Senior

26

191.0

-0.816

37.7%

4

135.5

25.60

-0.683

40.6%

4

53.7

-0.856

23.0%

4

2.07

-0.806

21.2%

4

60.3%

0.725

18.8%

3

Herb@MAWS

BTRWx

Rookie

27

213.5

-0.657

30.4%

5

145.7

35.85

-0.284

16.9%

8

59.9

-0.528

14.2%

6

2.22

-0.586

15.4%

6

57.8%

0.538

13.9%

6

BTRWx

WeatherT

Senior

27

218.5

-0.621

28.7%

6

104.9

4.95

-1.486

88.5%

2

60.5

-0.496

13.4%

7

2.24

-0.553

14.5%

7

45.0%

-0.441

-11.4%

10

WeatherT

shillelagh

Senior

25

224.2

-0.581

26.9%

7

150.1

40.20

-0.114

6.8%

9

54.9

-0.792

21.3%

5

2.20

-0.616

16.2%

5

59.8%

0.686

17.8%

4

shillelagh

TQ

Senior

27

242.7

-0.450

20.8%

8

141.1

31.20

-0.465

27.7%

6

62.8

-0.371

10.0%

8

2.33

-0.427

11.2%

8

46.7%

-0.306

-7.9%

9

TQ

Donald Rosenfeld

Senior

27

257.8

-0.344

15.9%

9

154.8

44.90

0.069

-4.1%

10

67.7

-0.110

3.0%

10

2.51

-0.163

4.3%

9

55.8%

0.381

9.8%

7

Donald Rosenfeld

MarkHofmann

Senior

26

338.5

0.225

-10.4%

10

91.0

18.84

-0.946

56.3%

3

65.6

-0.220

5.9%

9

2.52

-0.138

3.6%

10

23.2%

-2.101

-54.4%

15

MarkHofmann

Mitchel Volk

Senior

27

396.4

0.634

-29.3%

11

186.0

76.15

1.285

-76.5%

14

88.2

0.979

-26.3%

12

3.26

0.939

-24.6%

12

55.0%

0.320

8.3%

8

Mitchel Volk

snocat918

Intern

27

408.9

0.722

-33.4%

12

174.3

64.45

0.830

-49.4%

11

87.1

0.920

-24.8%

11

3.22

0.879

-23.1%

11

42.8%

-0.603

-15.6%

12

snocat918

Roger Smith

Senior

26

510.9

1.442

-66.7%

13

180.1

70.25

1.055

-62.9%

12

90.2

1.085

-29.2%

13

3.47

1.233

-32.4%

13

45.0%

-0.441

-11.4%

11

Roger Smith

iralibov

Senior

27

528.7

1.567

-72.4%

14

182.9

73.05

1.164

-69.3%

13

95.3

1.357

-36.5%

14

3.53

1.321

-34.7%

14

35.5%

-1.162

-30.1%

13

iralibov

quagmireweathercentral

Intern

27

591.9

2.013

-93.1%

15

202.2

92.35

1.916

-114.1%

15

110.8

2.182

-58.7%

15

4.10

2.156

-56.6%

15

34.2%

-1.263

-32.7%

14

quagmireweathercentral

Forecast Parameters

399

Error

Error Z

% MPRV

Rank

STP

Error

Error Z

%MPRV

Rank

Error

Error Z

%MPRV

Rank

Error

Error Z

%MPRV

Rank

RSQ

RSQ Z

%MPRV

Rank

Forecast Parameters

MIN

25

140.5

-1.171

-93.1%

1

91.0

4.3

-1.512

-114.1%

1

48.5

-1.132

-58.7%

1

1.80

-1.197

-56.6%

1

23.2%

-2.101

-54.4%

      1

MIN

MAX

27

591.9

2.013

54.2%

15

202.2

92.4

1.916

90.0%

15

110.8

2.182

30.5%

15

4.10

2.156

31.4%

15

74.0%

1.769

45.8%

    15

MAX

AVG

27

306.6

0.000

0.0%

8

149.8

43.1

0.000

0.0%

8

69.8

0.000

0.0%

8

2.62

0.000

0.0%

8

50.8%

0.000

0.0%

      8

AVG

Median

27

242.7

-0.450

20.8%

8

145.7

35.9

-0.284

16.9%

8

62.8

-0.371

10.0%

8

2.33

-0.427

11.2%

8

55.0%

0.320

8.3%

      8

Median

Mode

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

STD

1

141.7

1.000

46.2%

4.3

30.4

25.7

1.000

59.6%

4.3

18.8

1.000

26.9%

4.3

0.69

1.000

26.2%

4.3

13.1%

1.000

25.9%

   4.3

STD

25%

26

202.2

-0.736

-31.3%

5

138.2

28.3

-0.577

-56.1%

5

54.3

-0.824

-25.6%

5

2.13

-0.711

-23.9%

5

43.9%

-0.522

-13.5%

      5

 

75%

27

402.7

0.678

34.0%

12

177.2

67.4

0.943

34.4%

12

87.6

0.949

22.2%

12

3.24

0.909

18.7%

12

58.8%

0.614

15.9%

    12

 

 

Perfect Forecasts

Rank

Forecaster

'Perfect Forecast' Stations

bat avg

1

shillelagh

EWR SBY RIC

0.120

2

Mitchel Volk

EWR ORF RDU

0.111

3

donsutherland1

BGM RDU

0.074

3

TQ

HYA RDU

0.074

5

emoran

SBY

0.038

5

MarkHofmann

RIC

0.038

7

Brad Yehl

MDT

0.037

7

BTRWx

BGM

0.037

7

Donald Rosenfeld

ORF

0.037

7

quagmireweathercentral

IAD

0.037

7

snocat918

ORF

0.037

7

WeatherT

BTV

0.037

13

Herb@MAWS

 

0.000

13

iralibov

 

0.000

13

Roger Smith

 

0.000

 

Best Station Forecasts  (Batting Average - Percentage of Forecast Stations with Lowest Absolute Error)

Rank

Forecaster

'Lowest Error' Stations

TOT

bat avg

1

MarkHofmann

CON BDL DCA RIC

4

0.154

1

Roger Smith

BGR PVD PHL DCA

4

0.154

3

donsutherland1

BGM ISP ABE RDU

4

0.148

3

TQ

HYA JFK ACY RDU

4

0.148

5

shillelagh

EWR SBY RIC

3

0.120

6

emoran

CAR ISP SBY

3

0.115

6

Herb@MAWS

BOS ISP DCA

3

0.115

8

Brad Yehl

PWM BDR MDT

3

0.111

8

WeatherT

BTV ORH BWI

3

0.111

8

Mitchel Volk

EWR ORF RDU

3

0.111

11

BTRWx

BGM

1

0.037

11

Donald Rosenfeld

ORF

1

0.037

11

snocat918

ORF

1

0.037

11

quagmireweathercentral

IAD

1

0.037

15

iralibov

 

0

0.000

 

Best Station Forecast Busts (Batting Average - Percentage of Forecast Stations with Highest Absolute Error)

Rank

Forecaster

'Highest Error' Stations

TOT

bat avg

1

quagmireweathercentral

CAR PWM BTV ALB BGM DCA SBY RIC RDU

9

0.333

2

iralibov

BOS HYA PVD BDL ACY

5

0.185

3

Roger Smith

CON ORH BWI RDU

4

0.154

4

MarkHofmann

BDR ISP IAD

3

0.115

5

WeatherT

ABE PHL EWR

3

0.111

6

emoran

IAD ORF

2

0.077

7

Mitchel Volk

BGR MDT

2

0.074

8

Donald Rosenfeld

RDU

1

0.037

8

snocat918

JFK

1

0.037

10

Brad Yehl

 

0

0.000

10

BTRWx

 

0

0.000

10

donsutherland1

 

0

0.000

10

Herb@MAWS

 

0

0.000

10

shillelagh

 

0

0.000

10

TQ

 

0

0.000

 

 

Consensus forecast best @ BDR…ISP…ABE

MAX forecast best @ PHL…EWR…IAD…ORF

MAX forecast less than observed @

MIN forecasts best @ BOS…ORH…PVD…MDT…ACY…BWI…DCA…SBY

MIN forecasts more than observed @ BOS…ORH…ACY…BWI

 

 

Good association between SUMSQ and TAE Z-scores

 

*******************************

Verification:

Good data from CDUS41…PNS…and F6 bulletins.

 

SBY 3" STP reported in PNSAKQ.

 

Some questions about BWI/s 5.1” STP and 12 SN:H2O given vicinity reports ~7” and vicinity SN:H2Os [14 (PHL)…15 (RIC)…and 21 (DCA)]

 

New Daily Records:  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)

 

Rank

Station

 Snow

 SN:H2O

        1

PHL

     13.5

       14.8

        2

ISP

     11.2

       20.0

        3

EWR

     10.0

       25.0

        4

HYA

       8.5

 

        4

IAD

       8.5

       42.5

        6

JFK

       7.1

       19.7

        7

ABE

       5.7

       16.8

        7

BDR

       6.7

       30.5

        7

PVD

       5.7

       31.7

      10

BWI

       5.1

       12.1

      11

MDT

       4.6

       13.5

      12

BOS

       4.2

       30.0

      13

ACY

       4.0

       19.0

      14

DCA

       3.8

       21.1

      15

ORF

       3.0

       25.0

      15

SBY

       3.0

 

      17

RIC

       2.0

       15.4

      18

ORH

       1.8

       20.0

      19

BDL

       0.6

       15.0

      20

RDU

       0.5

         5.0

      21

BGM

       0.1

 

      22

BGR

     0.05

 

      22

BTV

     0.05

 

      22

CAR

     0.05

 

      22

CON

     0.05

 

      22

PWM

     0.05

 

 

ALB

        -  

 

 

TOT/AVG

      110

          21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

METAR KBWI 212119Z 02009G16KT 1/8SM R10/4000V4500FT +SN FZFG VV014 M06/M08 A2980