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

Follow the link to 'Storm Forecasts – Snow Storm #5 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

93.50

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

dryslot

Intern

25

459.5

-1.539

40.6%

1

   50.00

43.50

0.454

-19.6%

9

64.50

-2.129

35.2%

1

2.58

-1.975

34.5%

1

72.5%

2.793

373.0%

1

dryslot

RyanKrimm

Rookie

25

473.2

-1.472

38.8%

2

  133.50

40.00

0.231

-10.0%

8

92.60

-0.419

6.9%

5

3.70

-0.341

6.0%

6

42.0%

1.304

174.1%

2

RyanKrimm

donsutherland1

Chief

26

528.7

-1.200

31.6%

3

  110.20

16.70

-1.252

54.1%

3

92.80

-0.407

6.7%

6

3.57

-0.537

9.4%

4

28.8%

0.660

88.1%

3

donsutherland1

Donald Rosenfeld

Senior

25

577.2

-0.962

25.4%

4

  103.00

9.50

-1.710

73.9%

1

87.60

-0.724

12.0%

3

3.50

-0.632

11.0%

3

20.0%

0.229

30.5%

4

Donald Rosenfeld

Roger Smith

Senior

27

694.6

-0.386

10.2%

5

   70.60

22.90

-0.857

37.0%

4

82.90

-1.009

16.7%

2

3.07

-1.262

22.1%

2

6.9%

-0.414

-55.3%

7

Roger Smith

Shillelagh

Senior

25

736.9

-0.179

4.7%

6

   54.70

38.80

0.155

-6.7%

7

91.90

-0.462

7.6%

4

3.68

-0.382

6.7%

5

6.5%

-0.432

-57.6%

8

Shillelagh

TQ

Senior

25

794.1

0.102

-2.7%

7

  127.10

33.60

-0.176

7.6%

5

116.10

1.011

-16.7%

11

4.64

1.025

-17.9%

11

7.9%

-0.365

-48.7%

6

TQ

weatherT

Senior

26

882.8

0.537

-14.2%

8

   55.85

37.65

0.082

-3.5%

6

96.65

-0.173

2.9%

7

3.72

-0.322

5.6%

7

0.0%

-0.748

-99.8%

13

weatherT

herb@maws

Senior

24

922.5

0.732

-19.3%

9

   44.45

49.05

0.807

-34.9%

11

103.25

0.229

-3.8%

8

4.30

0.528

-9.2%

9

0.2%

-0.738

-98.5%

12

herb@maws

Mitchel Volk

Senior

25

938.4

0.809

-21.3%

10

  158.00

64.50

1.791

-77.4%

13

125.50

1.583

-26.1%

13

5.02

1.571

-27.4%

13

9.2%

-0.300

-40.1%

5

Mitchel Volk

snocat918

Rookie

26

944.5

0.840

-22.1%

11

   47.90

45.60

0.588

-25.4%

10

106.30

0.414

-6.8%

9

4.09

0.217

-3.8%

8

2.1%

-0.646

-86.3%

10

snocat918

snowman

Senior

25

1026.0

1.239

-32.7%

12

   38.01

55.49

1.217

-52.6%

12

109.19

0.590

-9.7%

10

4.37

0.623

-10.9%

10

0.4%

-0.728

-97.2%

11

snowman

quagmireweathercentral

Rookie

25

1075.0

1.479

-39.0%

13

  109.00

15.50

-1.328

57.4%

2

124.10

1.497

-24.7%

12

4.96

1.490

-26.0%

12

2.7%

-0.616

-82.2%

9

quagmireweathercentral

Forecast Parameters

329

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

24

459

-1.539

-39.0%

1

38.01

9.50

-1.710

-77.4%

1

64.5

-2.129

-26.1%

1

2.58

-1.975

-27.4%

1

0.0%

-0.748

-99.8%

                      1

MIN

MAX

27

1075

1.479

40.6%

13

158.00

64.50

1.791

73.9%

13

125.5

1.583

35.2%

13

5.02

1.571

34.5%

13

72.5%

2.793

373.0%

                    13

MAX

AVG

25

773

0.000

0.0%

7

84.79

36.37

0.000

0.0%

7

99.5

0.000

0.0%

7

3.94

0.000

0.0%

7

15.3%

0.000

0.0%

                      7

AVG

Median

25

794

0.102

-2.7%

7

70.60

38.80

0.155

-6.7%

7

96.7

-0.173

2.9%

7

3.72

-0.322

5.6%

7

6.9%

-0.414

-55.3%

                      7

Median

Mode

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

STD

1

204

1.000

26.4%

3.7

38.65

15.71

1.000

43.2%

3.7

16.4

1.000

16.5%

3.7

0.69

1.000

17.5%

3.7

20.5%

1.000

133.5%

                   3.7

STD

25%

25

577

-0.962

-21.3%

4

50.00

22.90

-0.857

-25.4%

4

91.9

-0.462

-9.7%

4

3.57

-0.537

-10.9%

4

2.1%

-0.646

-86.3%

                      4

 

75%

26

938

0.809

25.4%

10

110.20

45.60

0.588

37.0%

10

109.2

0.590

7.6%

10

4.37

0.623

9.4%

10

20.0%

0.229

30.5%

                    10

 

 

 

Perfect Forecasts

Rank

Forecaster

'Perfect Forecast' Stations

bat avg

1

herb@maws

CAR

0.042

2

Shillelagh

HYA

0.040

3

weatherT

JFK

0.038

4

Donald Rosenfeld

 

0.000

4

donsutherland1

 

0.000

4

dryslot

 

0.000

4

Mitchel Volk

 

0.000

4

quagmireweathercentral

 

0.000

4

Roger Smith

 

0.000

4

RyanKrimm

 

0.000

4

snocat918

 

0.000

4

snowman

 

0.000

4

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 ABE MDT PHL SBY

5

0.208

2

dryslot

PVD BDL PHL ACY BWI

5

0.200

3

Donald Rosenfeld

CON BGM EWR SBY

4

0.160

4

RyanKrimm

BOS ORH ACY

3

0.120

5

weatherT

PWM JFK RIC

3

0.115

6

Roger Smith

BTV ISP DCA

3

0.111

7

TQ

ALB RIC

2

0.080

8

donsutherland1

PVD BDR

2

0.077

9

Mitchel Volk

PWM

1

0.040

9

quagmireweathercentral

RIC

1

0.040

9

Shillelagh

HYA

1

0.040

9

snowman

BGR

1

0.040

13

snocat918

IAD

1

0.038

 

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

BDR BDL JFK ABE MDT PHL BWI DCA SBY ORF

10

0.400

2

TQ

BGR PWM CON BTV PVD IAD SBY

7

0.280

3

snocat918

BOS ISP SBY RIC

4

0.154

4

herb@maws

BGR ISP EWR

3

0.125

5

quagmireweathercentral

HYA BGM ACY

3

0.120

6

snowman

ORH ISP

2

0.080

7

RyanKrimm

CAR

1

0.040

8

weatherT

ALB

1

0.038

9

Roger Smith

RDU

1

0.037

10

Donald Rosenfeld

 

0

0.000

10

donsutherland1

 

0

0.000

10

dryslot

 

0

0.000

10

Shillelagh

 

0

0.000

 

 

Consensus forecast best @ CON…PVD…BGM…JFK…RIC

MAX forecast best @ BOS…ORH…BDR…BDL…ISP

MAX forecast less than observed @ BOS…ORH…BDR…ALB

MIN forecasts best @ MDT…DCA

MIN forecasts more than observed @ MDT…DCA

 

Poor association between SUMSQ and TAE Z-scores

 

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

Verification:

Good data from CDUS41…PNS…and F6 bulletins

 

New Daily Records:
Six new daily records.


WED...06-MAR-13
IAD - 3.3" (0.2"; 1989)

THU...07-MAR-13
ISP - 2" (1"; 1999)

FRI...08-MAR-13
ORH - 14.9" (9"; 1941)
BOS - 10.5" (8"; 1941)
BDR - 9" (3.5"; 2005)
ALB - 6.5" (6.2"; 2005)

 

Rank

Station

 Snow

 SN:H2O

        1

ORH

22.8

       16.3

        2

BOS

13.1

       27.9

        3

BDR

10.0

       11.4

        4

ALB

9.6

       13.9

        5

EWR

6.7

 

        6

ISP

5.7

         9.5

        7

BDL

4.5

       13.2

        8

CON

4.1

       18.6

        9

IAD

3.3

 

      10

JFK

3.0

       11.1

      11

BGM

2.3

       13.5

      11

PVD

2.3

       12.8

      13

PWM

1.6

       14.5

      14

RIC

1.5

 

      15

HYA

1.0

 

      16

ACY

0.9

         6.9

      17

BTV

0.4

 

      18

DCA

0.2

 

      18

PHL

0.2

       10.0

      20

ABE

0.05

 

      20

BGR

0.05

 

      20

BWI

0.05

 

      20

CAR

0.05

 

      20

MDT

0.05

 

      20

SBY

0.05

 

 

ORF

        -  

 

 

RDU

        -  

 

 

TOT

   93.50

       13.8

 

 

05-MAR-13

06-MAR-13

07-MAR-13