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

Follow the link to 'Storm Forecasts – Snow Storm #2 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.

 

Final Standings - all Forecasters

 

Forecaster

Class

4casts

Sum Square

STP

TOTAL Absolute

AVG Absolute

 

 

 

 

 

Error

Error Z

%MPROV over AVG

Rank

57.70

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

donsutherland1

Chief

13

76.0

-1.079

52.7%

1

   51.35

6.35

-0.603

44.7%

4

20.75

-1.825

37.2%

1

1.60

-1.128

32.4%

1

80.0%

1.128

28.1%

1

donsutherland1

Brad Yehl

Intern

13

109.7

-0.651

31.8%

2

   38.80

18.90

0.871

-64.6%

9

26.50

-0.970

19.8%

2

2.04

-0.474

13.6%

5

79.3%

1.082

27.0%

2

Brad Yehl

TQ

Senior

15

117.3

-0.553

27.0%

3

   49.65

8.05

-0.403

29.9%

6

30.95

-0.309

6.3%

4

2.06

-0.438

12.6%

6

69.4%

0.445

11.1%

5

TQ

ilibov

Senior

19

125.2

-0.453

22.1%

4

   48.50

9.20

-0.268

19.9%

7

33.00

-0.004

0.1%

7

1.74

-0.920

26.4%

2

70.0%

0.486

12.1%

4

ilibov

Shillelagh

Senior

15

125.5

-0.449

21.9%

5

   50.10

7.60

-0.456

33.8%

5

29.40

-0.539

11.0%

3

1.96

-0.590

16.9%

4

63.7%

0.081

2.0%

7

Shillelagh

Roger Smith

Journeyman

18

131.4

-0.374

18.3%

6

   55.55

2.15

-1.096

81.3%

2

31.65

-0.205

4.2%

5

1.76

-0.888

25.5%

3

61.2%

-0.080

-2.0%

8

Roger Smith

Donald Rosenfeld

Senior

14

142.3

-0.236

11.5%

7

   72.75

15.05

0.419

-31.1%

8

36.55

0.523

-10.7%

9

2.61

0.371

-10.6%

8

67.5%

0.325

8.1%

6

Donald Rosenfeld

dryslot

Intern

13

149.8

-0.140

6.9%

8

   59.00

1.30

-1.196

88.7%

1

35.30

0.338

-6.9%

8

2.72

0.525

-15.1%

9

56.1%

-0.410

-10.2%

9

dryslot

herb@maws

Senior

13

183.5

0.289

-14.1%

9

   29.35

28.35

1.981

-146.9%

11

31.95

-0.160

3.3%

6

2.46

0.145

-4.1%

7

73.5%

0.708

17.7%

3

herb@maws

weatherT

Senior

13

230.5

0.886

-43.3%

10

   33.65

24.05

1.476

-109.5%

10

39.05

0.895

-18.2%

10

3.00

0.951

-27.3%

10

38.6%

-1.531

-38.1%

10

weatherT

Mitchel Volk

Senior

12

377.7

2.760

-134.9%

11

   63.00

5.30

-0.726

53.8%

3

48.20

2.255

-45.9%

11

4.02

2.447

-70.2%

11

27.7%

-2.234

-55.7%

11

Mitchel Volk

Forecast Parameters

158

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

12

76

-1.079

-134.9%

1

29.35

1.30

-1.196

-146.9%

1

20.7

-1.825

-45.9%

1

1.60

-1.128

-70.2%

1

27.7%

-2.234

-55.7%

      1

MIN

MAX

19

378

2.760

52.7%

11

72.75

28.35

1.981

88.7%

11

48.2

2.255

37.2%

11

4.02

2.447

32.4%

11

80.0%

1.128

28.1%

    11

MAX

AVG

14

161

0.000

0.0%

6

50.16

11.48

0.000

0.0%

6

33.0

0.000

0.0%

6

2.36

0.000

0.0%

6

62.5%

0.000

0.0%

      6

AVG

Median

13

131

-0.374

18.3%

6

50.10

8.05

-0.403

29.9%

6

31.9

-0.160

3.3%

6

2.06

-0.438

12.6%

6

67.5%

0.325

8.1%

      6

Median

Mode

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

STD

2

79

1.000

48.9%

3.2

12.14

8.51

1.000

74.2%

3.2

6.7

1.000

20.4%

3.2

0.68

1.000

28.7%

3.2

15.6%

1.000

24.9%

   3.2

STD

25%

13

121

-0.503

-3.6%

4

43.65

5.83

-0.664

-47.8%

4

30.2

-0.424

-8.8%

4

1.86

-0.739

-12.9%

4

58.7%

-0.245

-6.1%

      4

 

75%

15

167

0.074

24.6%

9

57.28

16.98

0.645

49.3%

9

35.9

0.431

8.6%

9

2.66

0.448

21.2%

9

71.8%

0.597

14.9%

      9

 

 

 

SUMSQ:  sum of square errors

STP:  storm total precipitation

TAE:  total absolute error
AAE:  average absolute error

 

---

Perfect Forecasts

Rank

Forecaster

'Perfect Forecast' Stations

bat avg

1

Brad Yehl

BDR

0.077

1

donsutherland1

ORH

0.077

1

herb@maws

HYA

0.077

4

Donald Rosenfeld

 

0.000

4

dryslot

 

0.000

4

ilibov

 

0.000

4

Mitchel Volk

 

0.000

4

Roger Smith

 

0.000

4

Shillelagh

 

0.000

4

TQ

 

0.000

4

weatherT

 

0.000

 

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

Rank

Forecaster

'Lowest Error' Stations

TOT

bat avg

1

Mitchel Volk

BTV BGM

2

0.167

2

donsutherland1

BGR ORH

2

0.154

2

herb@maws

BOS HYA

2

0.154

4

Shillelagh

CON ALB

2

0.133

5

ilibov

PVD BDL

2

0.105

6

Brad Yehl

BDR

1

0.077

7

Donald Rosenfeld

PWM

1

0.071

8

dryslot

 

0

0.000

8

Roger Smith

 

0

0.000

8

TQ

 

0

0.000

8

weatherT

 

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

Mitchel Volk

BGR PWM BOS HYA ORH

5

0.417

2

Roger Smith

BTV ISP JFK EWR

4

0.222

3

Donald Rosenfeld

BGM ABE MDT

3

0.214

4

ilibov

CON ISP JFK PHL

4

0.211

5

dryslot

CAR BDR

2

0.154

6

Brad Yehl

PVD

1

0.077

6

herb@maws

ALB

1

0.077

6

weatherT

BDL

1

0.077

9

donsutherland1

 

0

0.000

9

Shillelagh

 

0

0.000

9

TQ

 

0

0.000

 


Consensus forecast best @ ORH

MAX forecast best @ BGR…PWM…ALB

MAX forecast less than observed @ PWM

MIN forecasts best @ BOS…HYA…BDR

MIN forecasts more than observed @ BOS

 

 

Fair association between SUMSQ and TAE Z-scores

 

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

Verification:

Good data from CDUS41…PNS…and F6 bulletins.

Based on PNSBOX and NOHRSC...no evidence for any accumulation at HYA.

ORH value came from PNSBOX b/c no report was available from climate bulletins.

 

 

New Daily Records:
WED...29-FEB-12
BDL - 4.4" (4.4"; 2008)
ALB - 4" (0.8"; 2008)
ORH - 4" (3.1"; 1968)

THU...01-MAR-12
PWM - 13" (9.3"; 2005)