Relative Measure of Predictability for 500 hPa (Initial Time and Forecast Hours)

2009112300
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009112200
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009112100
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009112000
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111900
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111800
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111700
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111600
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111500
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111400
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111300
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111200
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111100
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009111000
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360
2009110900
24
48
72
96
120
144
168
192
216
240
264
288
312
336
360

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