Forecast (data)

For information on how we generate the forecast, please visit the Principles of Forecasting page.

Polar Cap, POL

Forecast hourly ranges for Polar Cap
Date Hour Hourly range (nT)
2017-10-19 12 35
2017-10-19 13 42
2017-10-19 14 50
2017-10-19 15 59
2017-10-19 16 70
2017-10-19 17 72
2017-10-19 18 73
2017-10-19 19 62
2017-10-19 20 52
2017-10-19 21 41
2017-10-19 22 35
2017-10-19 23 32
2017-10-20 00 30
2017-10-20 01 30
2017-10-20 02 27
2017-10-20 03 29
2017-10-20 04 29
2017-10-20 05 30
2017-10-20 06 29
2017-10-20 07 32
2017-10-20 08 32
2017-10-20 09 38
2017-10-20 10 38
2017-10-20 11 39

Auroral, AUR

Forecast hourly ranges for Auroral
Date Hour Hourly range (nT)
2017-10-19 12 121
2017-10-19 13 127
2017-10-19 14 127
2017-10-19 15 135
2017-10-19 16 141
2017-10-19 17 129
2017-10-19 18 109
2017-10-19 19 107
2017-10-19 20 93
2017-10-19 21 77
2017-10-19 22 56
2017-10-19 23 46
2017-10-20 00 51
2017-10-20 01 69
2017-10-20 02 81
2017-10-20 03 115
2017-10-20 04 140
2017-10-20 05 132
2017-10-20 06 126
2017-10-20 07 122
2017-10-20 08 102
2017-10-20 09 73
2017-10-20 10 100
2017-10-20 11 122

Sub-auroral, SUB

Forecast hourly ranges for Sub-auroral
Date Hour Hourly range (nT)
2017-10-19 12 23
2017-10-19 13 21
2017-10-19 14 19
2017-10-19 15 19
2017-10-19 16 20
2017-10-19 17 19
2017-10-19 18 17
2017-10-19 19 16
2017-10-19 20 16
2017-10-19 21 15
2017-10-19 22 15
2017-10-19 23 14
2017-10-20 00 12
2017-10-20 01 12
2017-10-20 02 12
2017-10-20 03 13
2017-10-20 04 15
2017-10-20 05 14
2017-10-20 06 17
2017-10-20 07 15
2017-10-20 08 17
2017-10-20 09 16
2017-10-20 10 14
2017-10-20 11 17

Eureka, EUA

Forecast hourly ranges for Eureka
Date Hour Hourly range (nT)
2017-10-19 12 32
2017-10-19 13 41
2017-10-19 14 50
2017-10-19 15 59
2017-10-19 16 70
2017-10-19 17 72
2017-10-19 18 73
2017-10-19 19 62
2017-10-19 20 52
2017-10-19 21 41
2017-10-19 22 35
2017-10-19 23 32
2017-10-20 00 30
2017-10-20 01 30
2017-10-20 02 27
2017-10-20 03 29
2017-10-20 04 29
2017-10-20 05 30
2017-10-20 06 29
2017-10-20 07 32
2017-10-20 08 32
2017-10-20 09 38
2017-10-20 10 38
2017-10-20 11 39

Resolute Bay, RES

Forecast hourly ranges for Resolute Bay
Date Hour Hourly range (nT)
2017-10-19 12 35
2017-10-19 13 42
2017-10-19 14 49
2017-10-19 15 57
2017-10-19 16 67
2017-10-19 17 68
2017-10-19 18 69
2017-10-19 19 59
2017-10-19 20 49
2017-10-19 21 38
2017-10-19 22 32
2017-10-19 23 29
2017-10-20 00 27
2017-10-20 01 27
2017-10-20 02 24
2017-10-20 03 26
2017-10-20 04 26
2017-10-20 05 27
2017-10-20 06 26
2017-10-20 07 28
2017-10-20 08 28
2017-10-20 09 34
2017-10-20 10 34
2017-10-20 11 35

Cambridge Bay, CBB

Forecast hourly ranges for Cambridge Bay
Date Hour Hourly range (nT)
2017-10-19 12 29
2017-10-19 13 34
2017-10-19 14 41
2017-10-19 15 50
2017-10-19 16 60
2017-10-19 17 75
2017-10-19 18 75
2017-10-19 19 72
2017-10-19 20 71
2017-10-19 21 59
2017-10-19 22 43
2017-10-19 23 31
2017-10-20 00 22
2017-10-20 01 19
2017-10-20 02 19
2017-10-20 03 21
2017-10-20 04 31
2017-10-20 05 29
2017-10-20 06 39
2017-10-20 07 36
2017-10-20 08 36
2017-10-20 09 34
2017-10-20 10 26
2017-10-20 11 27

Baker Lake, BLC

Forecast hourly ranges for Baker Lake
Date Hour Hourly range (nT)
2017-10-19 12 103
2017-10-19 13 119
2017-10-19 14 127
2017-10-19 15 135
2017-10-19 16 141
2017-10-19 17 129
2017-10-19 18 109
2017-10-19 19 107
2017-10-19 20 93
2017-10-19 21 77
2017-10-19 22 56
2017-10-19 23 41
2017-10-20 00 36
2017-10-20 01 57
2017-10-20 02 70
2017-10-20 03 83
2017-10-20 04 101
2017-10-20 05 94
2017-10-20 06 89
2017-10-20 07 77
2017-10-20 08 58
2017-10-20 09 56
2017-10-20 10 63
2017-10-20 11 72

Iqaluit, IQA

Forecast hourly ranges for Iqaluit
Date Hour Hourly range (nT)
2017-10-19 12 136
2017-10-19 13 124
2017-10-19 14 126
2017-10-19 15 119
2017-10-19 16 119
2017-10-19 17 120
2017-10-19 18 99
2017-10-19 19 84
2017-10-19 20 65
2017-10-19 21 77
2017-10-19 22 71
2017-10-19 23 79
2017-10-20 00 117
2017-10-20 01 143
2017-10-20 02 146
2017-10-20 03 124
2017-10-20 04 88
2017-10-20 05 79
2017-10-20 06 84
2017-10-20 07 88
2017-10-20 08 99
2017-10-20 09 137
2017-10-20 10 164
2017-10-20 11 176

Yellowknife, YKC

Forecast hourly ranges for Yellowknife
Date Hour Hourly range (nT)
2017-10-19 12 121
2017-10-19 13 127
2017-10-19 14 125
2017-10-19 15 105
2017-10-19 16 86
2017-10-19 17 65
2017-10-19 18 59
2017-10-19 19 49
2017-10-19 20 44
2017-10-19 21 42
2017-10-19 22 40
2017-10-19 23 38
2017-10-20 00 39
2017-10-20 01 41
2017-10-20 02 45
2017-10-20 03 58
2017-10-20 04 66
2017-10-20 05 97
2017-10-20 06 126
2017-10-20 07 122
2017-10-20 08 102
2017-10-20 09 70
2017-10-20 10 62
2017-10-20 11 68

Fort Churchill, FCC

Forecast hourly ranges for Fort Churchill
Date Hour Hourly range (nT)
2017-10-19 12 92
2017-10-19 13 83
2017-10-19 14 56
2017-10-19 15 42
2017-10-19 16 38
2017-10-19 17 34
2017-10-19 18 33
2017-10-19 19 33
2017-10-19 20 33
2017-10-19 21 40
2017-10-19 22 37
2017-10-19 23 39
2017-10-20 00 44
2017-10-20 01 58
2017-10-20 02 81
2017-10-20 03 115
2017-10-20 04 140
2017-10-20 05 132
2017-10-20 06 123
2017-10-20 07 93
2017-10-20 08 74
2017-10-20 09 73
2017-10-20 10 100
2017-10-20 11 122

Sanikiluaq, SNK

Forecast hourly ranges for Sanikiluaq
Date Hour Hourly range (nT)
2017-10-19 12 44
2017-10-19 13 34
2017-10-19 14 29
2017-10-19 15 25
2017-10-19 16 25
2017-10-19 17 31
2017-10-19 18 31
2017-10-19 19 27
2017-10-19 20 28
2017-10-19 21 30
2017-10-19 22 39
2017-10-19 23 46
2017-10-20 00 51
2017-10-20 01 69
2017-10-20 02 81
2017-10-20 03 90
2017-10-20 04 83
2017-10-20 05 71
2017-10-20 06 53
2017-10-20 07 58
2017-10-20 08 65
2017-10-20 09 66
2017-10-20 10 74
2017-10-20 11 72

Meanook, MEA

Forecast hourly ranges for Meanook
Date Hour Hourly range (nT)
2017-10-19 12 38
2017-10-19 13 33
2017-10-19 14 28
2017-10-19 15 22
2017-10-19 16 21
2017-10-19 17 18
2017-10-19 18 17
2017-10-19 19 16
2017-10-19 20 16
2017-10-19 21 16
2017-10-19 22 16
2017-10-19 23 17
2017-10-20 00 16
2017-10-20 01 16
2017-10-20 02 16
2017-10-20 03 22
2017-10-20 04 27
2017-10-20 05 35
2017-10-20 06 39
2017-10-20 07 46
2017-10-20 08 39
2017-10-20 09 33
2017-10-20 10 33
2017-10-20 11 38

Brandon, BRD

Forecast hourly ranges for Brandon
Date Hour Hourly range (nT)
2017-10-19 12 15
2017-10-19 13 12
2017-10-19 14 9
2017-10-19 15 9
2017-10-19 16 8
2017-10-19 17 8
2017-10-19 18 8
2017-10-19 19 8
2017-10-19 20 10
2017-10-19 21 11
2017-10-19 22 13
2017-10-19 23 20
2017-10-20 00 16
2017-10-20 01 18
2017-10-20 02 20
2017-10-20 03 25
2017-10-20 04 28
2017-10-20 05 28
2017-10-20 06 32
2017-10-20 07 32
2017-10-20 08 26
2017-10-20 09 25
2017-10-20 10 25
2017-10-20 11 23

St Johns, STJ

Forecast hourly ranges for St Johns
Date Hour Hourly range (nT)
2017-10-19 12 11
2017-10-19 13 10
2017-10-19 14 9
2017-10-19 15 10
2017-10-19 16 11
2017-10-19 17 11
2017-10-19 18 12
2017-10-19 19 10
2017-10-19 20 9
2017-10-19 21 9
2017-10-19 22 9
2017-10-19 23 10
2017-10-20 00 10
2017-10-20 01 11
2017-10-20 02 10
2017-10-20 03 10
2017-10-20 04 10
2017-10-20 05 10
2017-10-20 06 9
2017-10-20 07 10
2017-10-20 08 10
2017-10-20 09 11
2017-10-20 10 14
2017-10-20 11 14

Ottawa, OTT

Forecast hourly ranges for Ottawa
Date Hour Hourly range (nT)
2017-10-19 12 9
2017-10-19 13 10
2017-10-19 14 11
2017-10-19 15 11
2017-10-19 16 10
2017-10-19 17 11
2017-10-19 18 11
2017-10-19 19 12
2017-10-19 20 13
2017-10-19 21 12
2017-10-19 22 10
2017-10-19 23 9
2017-10-20 00 10
2017-10-20 01 11
2017-10-20 02 12
2017-10-20 03 13
2017-10-20 04 15
2017-10-20 05 14
2017-10-20 06 15
2017-10-20 07 15
2017-10-20 08 14
2017-10-20 09 14
2017-10-20 10 13
2017-10-20 11 13

Victoria, VIC

Forecast hourly ranges for Victoria
Date Hour Hourly range (nT)
2017-10-19 12 23
2017-10-19 13 21
2017-10-19 14 19
2017-10-19 15 19
2017-10-19 16 20
2017-10-19 17 19
2017-10-19 18 17
2017-10-19 19 16
2017-10-19 20 16
2017-10-19 21 15
2017-10-19 22 15
2017-10-19 23 14
2017-10-20 00 12
2017-10-20 01 12
2017-10-20 02 11
2017-10-20 03 10
2017-10-20 04 11
2017-10-20 05 14
2017-10-20 06 17
2017-10-20 07 15
2017-10-20 08 17
2017-10-20 09 16
2017-10-20 10 14
2017-10-20 11 17