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.

 

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

65.90

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

21

77.4

-1.049

55.3%

1

   52.75

13.15

-0.568

43.7%

5

30.45

-1.307

36.2%

1

1.45

-1.187

30.0%

2

69.4%

1.402

73.5%

1

donsutherland1

Brad Yehl

Journeyman

24

78.3

-1.040

54.8%

2

   55.75

10.15

-0.735

56.6%

4

31.05

-1.261

34.9%

2

1.29

-1.486

37.6%

1

64.7%

1.181

61.9%

2

Brad Yehl

snocat918

Rookie

23

104.5

-0.752

39.6%

3

   58.35

7.55

-0.880

67.7%

3

39.55

-0.618

17.1%

5

1.72

-0.673

17.0%

4

48.4%

0.401

21.0%

5

snocat918

Donald Rosenfeld

Senior

22

112.6

-0.663

34.9%

4

   64.80

1.10

-1.239

95.3%

1

40.20

-0.569

15.7%

6

1.83

-0.467

11.8%

6

43.2%

0.156

8.2%

8

Donald Rosenfeld

answered7

Intern

22

112.7

-0.662

34.9%

5

   73.30

7.40

-0.888

68.3%

2

38.50

-0.697

19.3%

4

1.75

-0.615

15.5%

5

50.2%

0.487

25.5%

4

answered7

TQ

Senior

22

132.7

-0.443

23.3%

6

   39.25

26.65

0.183

-14.0%

8

37.15

-0.800

22.1%

3

1.69

-0.732

18.5%

3

47.0%

0.335

17.6%

7

TQ

Iralibov

Senior

25

141.4

-0.348

18.3%

7

   96.50

30.60

0.403

-31.0%

9

51.40

0.280

-7.7%

8

2.06

-0.031

0.8%

7

48.1%

0.387

20.3%

6

Iralibov

kevinmyattwx

Rookie

22

168.1

-0.054

2.9%

8

   80.00

14.10

-0.516

39.7%

6

53.70

0.454

-12.6%

9

2.44

0.704

-17.8%

9

24.1%

-0.758

-39.7%

9

kevinmyattwx

herb@maws

Senior

23

194.6

0.236

-12.4%

9

   44.40

21.50

-0.104

8.0%

7

50.70

0.227

-6.3%

7

2.20

0.253

-6.4%

8

11.2%

-1.375

-72.1%

11

herb@maws

defman27

Senior

23

285.1

1.229

-64.7%

10

   27.80

38.10

0.820

-63.1%

10

60.30

0.953

-26.4%

10

2.62

1.049

-26.5%

10

0.0%

-1.908

-100.0%

12

defman27

quagmireweathercentral

Rookie

24

306.0

1.458

-76.8%

11

  110.50

44.60

1.182

-90.9%

11

72.00

1.839

-50.9%

12

3.00

1.771

-44.8%

12

16.8%

-1.104

-57.9%

10

quagmireweathercentral

Roger Smith

Senior

24

363.4

2.088

-110.0%

12

  131.40

65.50

2.344

-180.3%

12

67.50

1.499

-41.5%

11

2.81

1.414

-35.7%

11

56.6%

0.795

41.7%

3

Roger Smith

Forecast Parameters

275

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

21

77

-1.049

-110.0%

1

27.80

1.10

-1.239

-180.3%

1

30.5

-1.307

-50.9%

1

1.29

-1.486

-44.8%

1

0.0%

-1.908

-100.0%

      1

MIN

MAX

25

363

2.088

55.3%

12

131.40

65.50

2.344

95.3%

12

72.0

1.839

36.2%

12

3.00

1.771

37.6%

12

69.4%

1.402

73.5%

    12

MAX

AVG

23

173

0.000

0.0%

7

69.57

23.37

0.000

0.0%

7

47.7

0.000

0.0%

7

2.07

0.000

0.0%

7

40.0%

0.000

0.0%

      7

AVG

Median

23

137

-0.395

20.8%

7

61.58

17.80

-0.310

23.8%

7

45.4

-0.171

4.7%

7

1.94

-0.249

6.3%

7

47.5%

0.361

18.9%

      7

Median

Mode

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

STD

1

91

1.000

52.7%

3.5

29.25

17.97

1.000

76.9%

3.5

13.2

1.000

27.7%

3.5

0.52

1.000

25.3%

3.5

21.0%

1.000

52.4%

   3.5

STD

25%

22

111

-0.686

-25.5%

4

50.66

9.50

-0.772

-39.0%

4

38.2

-0.723

-16.0%

4

1.71

-0.688

-20.0%

4

22.3%

-0.844

-44.3%

      4

 

75%

24

217

0.484

36.1%

9

84.13

32.47

0.507

59.3%

9

55.3

0.579

20.0%

9

2.49

0.790

17.4%

9

51.8%

0.564

29.6%

      9

 

 

---

Perfect Forecasts

Rank

Forecaster

'Perfect Forecast' Stations

bat avg

1

Roger Smith

HYA DCA

0.083

2

donsutherland1

DCA

0.048

3

kevinmyattwx

ALB

0.045

3

TQ

DCA

0.045

5

herb@maws

HYA

0.043

6

Brad Yehl

HYA

0.042

6

quagmireweathercentral

BTV

0.042

8

answered7

 

0.000

8

defman27

 

0.000

8

Donald Rosenfeld

 

0.000

8

Iralibov

 

0.000

8

snocat918

 

0.000

 

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

Rank

Forecaster

'Lowest Error' Stations

TOT

bat avg

1

answered7

BGR CON BDL PHL EWR

5

0.227

2

TQ

JFK ABE MDT DCA

4

0.182

3

herb@maws

BOS HYA ABE MDT

4

0.174

4

quagmireweathercentral

BTV ORH PVD BGM

4

0.167

5

Brad Yehl

HYA BDR IAD

3

0.125

5

Roger Smith

HYA MDT DCA

3

0.125

7

Donald Rosenfeld

BGR BWI

2

0.091

8

snocat918

PWM ISP

2

0.087

9

donsutherland1

DCA

1

0.048

10

kevinmyattwx

ALB

1

0.045

11

Iralibov

BDL

1

0.040

12

defman27

 

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

HYA ISP JFK ABE MDT PHL ACY BWI IAD DCA SBY RIC

12

0.500

2

defman27

PWM BTV ORH BDL ALB BGM

6

0.261

3

Roger Smith

CAR BGR CON BOS ISP EWR

6

0.250

4

kevinmyattwx

MDT BWI

2

0.091

5

Iralibov

RIC RDU

2

0.080

6

answered7

BDR

1

0.045

6

TQ

PVD

1

0.045

8

Brad Yehl

 

0

0.000

8

Donald Rosenfeld

 

0

0.000

8

donsutherland1

 

0

0.000

8

herb@maws

 

0

0.000

8

snocat918

 

0

0.000

 

 

Consensus forecast best @ BGR…BDR…ALB…ABE

MAX forecast best @ BTV…ORH…PVD…BGM

MAX forecast less than observed @ none

MIN forecasts best @ ISP…JFK…PHL

MIN forecasts more than observed @ PHL

 

 

Fair association between SUMSQ and TAE Z-scores

 

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

Verification:

Good data from CDUS41…PNS…and F6 bulletins

 

New Daily Records:

SAT…29-DEC-12
BDR
- 3.5" (3.1"; 1959)

 

Rank

Station

 Snow

 SN:H2O

        1

ORH

      9.3

       16.3

        2

PVD

      7.6

       10.0

        3

BDL

      6.8

       15.1

        4

PWM

      6.7

       24.8

        5

BGM

      6.4

       13.6

        6

ALB

      4.0

       16.0

        6

BTV

      4.0

       12.9

        8

BDR

      3.5

         9.2

        9

ABE

      3.3

       13.8

      10

CON

      2.6

       10.0

      11

MDT

      2.5

       10.0

      12

BGR

      2.2

       24.4

      12

BOS

      2.2

 

      14

EWR

      1.5

 

      15

HYA

      1.0

 

      16

IAD

      0.9

       10.0

      17

ISP

      0.5

 

      18

BWI

      0.4

 

      18

JFK

      0.4

 

      20

DCA

     0.05

 

      20

PHL

     0.05

 

 

ACY

        -  

 

 

CAR

        -  

 

 

ORF

        -  

 

 

RDU

        -  

 

 

RIC

        -  

 

 

SBY

        -  

 

 

TOT

     65.9

       14.3