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

Follow the left-side link from 'Storm Contest Verified Forecasts’ – Snow Storm #7 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

63.2

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

Senior

23

103.7

-0.841

53.7%

1

82.2

19.00

0.011

-0.9%

7

29.0

-0.705

27.2%

3

1.26

-1.463

42.7%

1

86.8%

1.077

19.6%

2

donsutherland1

Brad Yehl

Journeyman

14

108.3

-0.809

51.6%

2

79.4

16.15

-0.162

14.2%

6

26.5

-0.865

33.3%

1

1.90

-0.475

13.9%

3

88.0%

1.170

21.3%

1

Brad Yehl

Roger Smith

Senior

21

128.2

-0.670

42.8%

3

52.6

10.65

-0.497

43.4%

3

27.6

-0.800

30.8%

2

1.31

-1.384

40.4%

2

83.9%

0.860

15.7%

3

Roger Smith

TQ

Senior

17

135.6

-0.618

39.5%

4

83.0

19.80

0.059

-5.2%

8

32.6

-0.471

18.2%

4

1.92

-0.442

12.9%

4

82.1%

0.724

13.2%

4

TQ

Herb@MAWS

Senior

15

168.6

-0.387

24.7%

5

75.1

11.90

-0.421

36.8%

4

32.8

-0.458

17.7%

5

2.19

-0.024

0.7%

5

75.9%

0.248

4.5%

5

Herb@MAWS

WeatherT

Senior

20

241.1

0.120

-7.6%

6

72.7

9.45

-0.570

49.8%

2

48.3

0.548

-21.1%

8

2.41

0.327

-9.6%

6

64.3%

-0.624

-11.3%

6

WeatherT

Donald Rosenfeld

Senior

16

261.2

0.261

-16.6%

7

68.8

5.55

-0.807

70.5%

1

43.1

0.209

-8.1%

7

2.69

0.759

-22.2%

7

61.0%

-0.877

-16.0%

8

Donald Rosenfeld

snowman

Senior

14

283.4

0.415

-26.5%

8

50.0

13.20

-0.342

29.9%

5

40.2

0.024

-0.9%

6

2.87

1.040

-30.4%

8

63.2%

-0.714

-13.0%

7

snowman

snocat918

Intern

24

585.7

2.530

-161.5%

9

126.9

63.70

2.730

-238.4%

9

78.5

2.518

-97.1%

9

3.27

1.661

-48.5%

9

47.9%

-1.865

-33.9%

9

snocat918

Forecast Parameters

164

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

14

103.7

-0.841

-161.5%

1

50.0

5.5

-0.807

-238.4%

1

26.5

-0.865

-97.1%

1

1.26

-1.463

-48.5%

1

47.9%

-1.865

-33.9%

      1

MIN

MAX

24

585.7

2.530

53.7%

9

126.9

63.7

2.730

70.5%

9

78.5

2.518

33.3%

9

3.27

1.661

42.7%

9

88.0%

1.170

21.3%

      9

MAX

AVG

18

224.0

0.000

0.0%

5

76.7

18.8

0.000

0.0%

5

39.8

0.000

0.0%

5

2.20

0.000

0.0%

5

72.6%

0.000

0.0%

      5

AVG

Median

17

168.6

-0.387

24.7%

5

75.1

13.2

-0.342

29.9%

5

32.8

-0.458

17.7%

5

2.19

-0.024

0.7%

5

75.9%

0.248

4.5%

      5

Median

Mode

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

STD

4

143.0

1.000

63.8%

2.6

21.0

16.4

1.000

87.3%

2.6

15.4

1.000

38.6%

2.6

0.64

1.000

29.2%

2.6

13.2%

1.000

18.2%

   2.6

STD

 

Perfect Forecasts

Rank

Forecaster

'Perfect Forecast' Stations

bat avg

1

snowman

BOS ALB

0.143

2

Donald Rosenfeld

BDR ISP

0.125

3

Brad Yehl

BDR

0.071

4

Herb@MAWS

ISP

0.067

5

WeatherT

HYA

0.050

6

snocat918

ISP

0.042

7

donsutherland1

 

0.000

7

Roger Smith

 

0.000

7

TQ

 

0.000

 

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

Rank

Forecaster

'Lowest Error' Stations

TOT

bat avg

1

Herb@MAWS

CAR BGR PVD ISP ABE

5

0.333

2

snowman

PWM BOS ALB ABE

4

0.286

3

Brad Yehl

BDR BDL ABE

3

0.214

4

Donald Rosenfeld

BDR ISP ABE

3

0.188

5

TQ

BTV ORH PVD

3

0.176

6

Roger Smith

PWM CON BGM

3

0.143

7

WeatherT

HYA

1

0.050

8

donsutherland1

ABE

1

0.043

9

snocat918

ISP

1

0.042

 

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

Rank

Forecaster

'Highest Error' Stations

TOT

bat avg

1

snocat918

PWM CON BOS ORH PVD BDL BGM ABE MDT PHL ACY BWI IAD DCA RIC

15

0.625

2

donsutherland1

HYA BWI IAD DCA SBY RIC

6

0.261

3

WeatherT

BDR ALB JFK EWR BWI

5

0.250

4

Roger Smith

BGR BWI IAD

3

0.143

4

snowman

CAR BTV

2

0.143

6

TQ

ISP JFK

2

0.118

7

Brad Yehl

ORH

1

0.071

8

Donald Rosenfeld

 

0

0.000

8

Herb@MAWS

 

0

0.000

 

Consensus forecast best @ ORH…ALB

MAX forecast best @ BTV

MAX forecast less than observed @

MIN forecasts best @ PWM…CON…BGM

MIN forecasts more than observed @ PWM…CON…BGM

 

 

Fair association between SUMSQ and TAE Z-scores

 

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

Verification:

Good data from CDUS41…PNS…and F6 bulletins.

 

HYA STP estimated from vicinity PNSBOX reports and METARs.

 

Rank

Station

 Snow

 SN:H2O

 H2O

        1

BTV

     18.7

       27.5

   0.68

        2

CAR

     16.1

       16.4

   0.98

        3

BGR

     12.4

 

        - 

        4

ALB

       5.5

 

        - 

        5

ORH

       3.1

       19.4

   0.16

        6

CON

       2.5

 

        - 

        7

BOS

       1.5

 

        - 

        7

PWM

       1.5

 

        - 

        9

PVD

       1.1

       18.3

   0.06

      10

BGM

       0.4

 

        - 

      11

HYA

       0.5

 

        - 

      12

ABE

     0.05

 

        - 

      12

BDL

     0.05

 

        -  

      12

BDR

     0.05

 

        - 

      12

ISP

     0.05

 

        - 

 

ACY

        -  

 

        - 

 

BWI

        -  

 

        - 

 

DCA

        -  

 

        - 

 

EWR

        -  

 

        - 

 

IAD

        -  

 

        - 

 

JFK

        -  

 

        - 

 

MDT

        -  

 

        - 

 

ORF

        -  

 

        - 

 

PHL

        -  

 

        - 

 

RDU

        -  

 

        - 

 

RIC

        -  

 

        - 

 

SBY

        -  

 

        - 

 

TOT

     63.3

       20.4

     1.8

 

New Daily Records:

WED:

BTV - 15.2" (7.2"; 1959)

THU:

CAR - 9.7" (8.7"; 1953)