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) |
| 2024-04-20 |
11 |
60 |
| 2024-04-20 |
12 |
74 |
| 2024-04-20 |
13 |
96 |
| 2024-04-20 |
14 |
115 |
| 2024-04-20 |
15 |
133 |
| 2024-04-20 |
16 |
161 |
| 2024-04-20 |
17 |
169 |
| 2024-04-20 |
18 |
180 |
| 2024-04-20 |
19 |
167 |
| 2024-04-20 |
20 |
137 |
| 2024-04-20 |
21 |
94 |
| 2024-04-20 |
22 |
73 |
| 2024-04-20 |
23 |
67 |
| 2024-04-21 |
00 |
57 |
| 2024-04-21 |
01 |
54 |
| 2024-04-21 |
02 |
50 |
| 2024-04-21 |
03 |
48 |
| 2024-04-21 |
04 |
39 |
| 2024-04-21 |
05 |
49 |
| 2024-04-21 |
06 |
46 |
| 2024-04-21 |
07 |
49 |
| 2024-04-21 |
08 |
49 |
| 2024-04-21 |
09 |
58 |
| 2024-04-21 |
10 |
63 |
Auroral, AUR
Forecast hourly ranges for Auroral
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
188 |
| 2024-04-20 |
12 |
221 |
| 2024-04-20 |
13 |
301 |
| 2024-04-20 |
14 |
293 |
| 2024-04-20 |
15 |
271 |
| 2024-04-20 |
16 |
274 |
| 2024-04-20 |
17 |
234 |
| 2024-04-20 |
18 |
215 |
| 2024-04-20 |
19 |
196 |
| 2024-04-20 |
20 |
193 |
| 2024-04-20 |
21 |
166 |
| 2024-04-20 |
22 |
137 |
| 2024-04-20 |
23 |
153 |
| 2024-04-21 |
00 |
156 |
| 2024-04-21 |
01 |
180 |
| 2024-04-21 |
02 |
236 |
| 2024-04-21 |
03 |
287 |
| 2024-04-21 |
04 |
404 |
| 2024-04-21 |
05 |
381 |
| 2024-04-21 |
06 |
446 |
| 2024-04-21 |
07 |
460 |
| 2024-04-21 |
08 |
367 |
| 2024-04-21 |
09 |
281 |
| 2024-04-21 |
10 |
226 |
Sub-auroral, SUB
Forecast hourly ranges for Sub-auroral
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
33 |
| 2024-04-20 |
12 |
33 |
| 2024-04-20 |
13 |
38 |
| 2024-04-20 |
14 |
37 |
| 2024-04-20 |
15 |
36 |
| 2024-04-20 |
16 |
41 |
| 2024-04-20 |
17 |
41 |
| 2024-04-20 |
18 |
38 |
| 2024-04-20 |
19 |
42 |
| 2024-04-20 |
20 |
46 |
| 2024-04-20 |
21 |
47 |
| 2024-04-20 |
22 |
46 |
| 2024-04-20 |
23 |
45 |
| 2024-04-21 |
00 |
39 |
| 2024-04-21 |
01 |
36 |
| 2024-04-21 |
02 |
40 |
| 2024-04-21 |
03 |
46 |
| 2024-04-21 |
04 |
51 |
| 2024-04-21 |
05 |
52 |
| 2024-04-21 |
06 |
48 |
| 2024-04-21 |
07 |
48 |
| 2024-04-21 |
08 |
43 |
| 2024-04-21 |
09 |
39 |
| 2024-04-21 |
10 |
36 |
Eureka, EUA
Forecast hourly ranges for Eureka
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
35 |
| 2024-04-20 |
12 |
52 |
| 2024-04-20 |
13 |
77 |
| 2024-04-20 |
14 |
99 |
| 2024-04-20 |
15 |
120 |
| 2024-04-20 |
16 |
153 |
| 2024-04-20 |
17 |
163 |
| 2024-04-20 |
18 |
177 |
| 2024-04-20 |
19 |
166 |
| 2024-04-20 |
20 |
137 |
| 2024-04-20 |
21 |
94 |
| 2024-04-20 |
22 |
73 |
| 2024-04-20 |
23 |
67 |
| 2024-04-21 |
00 |
57 |
| 2024-04-21 |
01 |
54 |
| 2024-04-21 |
02 |
50 |
| 2024-04-21 |
03 |
48 |
| 2024-04-21 |
04 |
39 |
| 2024-04-21 |
05 |
49 |
| 2024-04-21 |
06 |
46 |
| 2024-04-21 |
07 |
49 |
| 2024-04-21 |
08 |
49 |
| 2024-04-21 |
09 |
58 |
| 2024-04-21 |
10 |
63 |
Resolute Bay, RES
Forecast hourly ranges for Resolute Bay
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
60 |
| 2024-04-20 |
12 |
74 |
| 2024-04-20 |
13 |
96 |
| 2024-04-20 |
14 |
115 |
| 2024-04-20 |
15 |
133 |
| 2024-04-20 |
16 |
161 |
| 2024-04-20 |
17 |
169 |
| 2024-04-20 |
18 |
180 |
| 2024-04-20 |
19 |
167 |
| 2024-04-20 |
20 |
137 |
| 2024-04-20 |
21 |
94 |
| 2024-04-20 |
22 |
72 |
| 2024-04-20 |
23 |
64 |
| 2024-04-21 |
00 |
54 |
| 2024-04-21 |
01 |
52 |
| 2024-04-21 |
02 |
48 |
| 2024-04-21 |
03 |
45 |
| 2024-04-21 |
04 |
37 |
| 2024-04-21 |
05 |
47 |
| 2024-04-21 |
06 |
44 |
| 2024-04-21 |
07 |
46 |
| 2024-04-21 |
08 |
47 |
| 2024-04-21 |
09 |
55 |
| 2024-04-21 |
10 |
60 |
Cambridge Bay, CBB
Forecast hourly ranges for Cambridge Bay
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
51 |
| 2024-04-20 |
12 |
63 |
| 2024-04-20 |
13 |
73 |
| 2024-04-20 |
14 |
97 |
| 2024-04-20 |
15 |
120 |
| 2024-04-20 |
16 |
163 |
| 2024-04-20 |
17 |
210 |
| 2024-04-20 |
18 |
225 |
| 2024-04-20 |
19 |
218 |
| 2024-04-20 |
20 |
197 |
| 2024-04-20 |
21 |
179 |
| 2024-04-20 |
22 |
135 |
| 2024-04-20 |
23 |
97 |
| 2024-04-21 |
00 |
70 |
| 2024-04-21 |
01 |
51 |
| 2024-04-21 |
02 |
48 |
| 2024-04-21 |
03 |
50 |
| 2024-04-21 |
04 |
54 |
| 2024-04-21 |
05 |
66 |
| 2024-04-21 |
06 |
64 |
| 2024-04-21 |
07 |
59 |
| 2024-04-21 |
08 |
58 |
| 2024-04-21 |
09 |
51 |
| 2024-04-21 |
10 |
53 |
Baker Lake, BLC
Forecast hourly ranges for Baker Lake
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
129 |
| 2024-04-20 |
12 |
155 |
| 2024-04-20 |
13 |
185 |
| 2024-04-20 |
14 |
245 |
| 2024-04-20 |
15 |
271 |
| 2024-04-20 |
16 |
274 |
| 2024-04-20 |
17 |
234 |
| 2024-04-20 |
18 |
215 |
| 2024-04-20 |
19 |
196 |
| 2024-04-20 |
20 |
193 |
| 2024-04-20 |
21 |
166 |
| 2024-04-20 |
22 |
127 |
| 2024-04-20 |
23 |
99 |
| 2024-04-21 |
00 |
78 |
| 2024-04-21 |
01 |
92 |
| 2024-04-21 |
02 |
127 |
| 2024-04-21 |
03 |
141 |
| 2024-04-21 |
04 |
160 |
| 2024-04-21 |
05 |
174 |
| 2024-04-21 |
06 |
154 |
| 2024-04-21 |
07 |
138 |
| 2024-04-21 |
08 |
104 |
| 2024-04-21 |
09 |
98 |
| 2024-04-21 |
10 |
102 |
Iqaluit, IQA
Forecast hourly ranges for Iqaluit
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
246 |
| 2024-04-20 |
12 |
233 |
| 2024-04-20 |
13 |
214 |
| 2024-04-20 |
14 |
196 |
| 2024-04-20 |
15 |
173 |
| 2024-04-20 |
16 |
190 |
| 2024-04-20 |
17 |
202 |
| 2024-04-20 |
18 |
187 |
| 2024-04-20 |
19 |
161 |
| 2024-04-20 |
20 |
138 |
| 2024-04-20 |
21 |
121 |
| 2024-04-20 |
22 |
120 |
| 2024-04-20 |
23 |
155 |
| 2024-04-21 |
00 |
198 |
| 2024-04-21 |
01 |
230 |
| 2024-04-21 |
02 |
216 |
| 2024-04-21 |
03 |
166 |
| 2024-04-21 |
04 |
148 |
| 2024-04-21 |
05 |
139 |
| 2024-04-21 |
06 |
116 |
| 2024-04-21 |
07 |
116 |
| 2024-04-21 |
08 |
136 |
| 2024-04-21 |
09 |
175 |
| 2024-04-21 |
10 |
236 |
Yellowknife, YKC
Forecast hourly ranges for Yellowknife
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
188 |
| 2024-04-20 |
12 |
221 |
| 2024-04-20 |
13 |
301 |
| 2024-04-20 |
14 |
293 |
| 2024-04-20 |
15 |
237 |
| 2024-04-20 |
16 |
179 |
| 2024-04-20 |
17 |
151 |
| 2024-04-20 |
18 |
129 |
| 2024-04-20 |
19 |
114 |
| 2024-04-20 |
20 |
108 |
| 2024-04-20 |
21 |
118 |
| 2024-04-20 |
22 |
137 |
| 2024-04-20 |
23 |
143 |
| 2024-04-21 |
00 |
134 |
| 2024-04-21 |
01 |
161 |
| 2024-04-21 |
02 |
158 |
| 2024-04-21 |
03 |
190 |
| 2024-04-21 |
04 |
254 |
| 2024-04-21 |
05 |
365 |
| 2024-04-21 |
06 |
446 |
| 2024-04-21 |
07 |
460 |
| 2024-04-21 |
08 |
367 |
| 2024-04-21 |
09 |
281 |
| 2024-04-21 |
10 |
226 |
Fort Churchill, FCC
Forecast hourly ranges for Fort Churchill
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
130 |
| 2024-04-20 |
12 |
153 |
| 2024-04-20 |
13 |
164 |
| 2024-04-20 |
14 |
137 |
| 2024-04-20 |
15 |
108 |
| 2024-04-20 |
16 |
100 |
| 2024-04-20 |
17 |
92 |
| 2024-04-20 |
18 |
92 |
| 2024-04-20 |
19 |
97 |
| 2024-04-20 |
20 |
120 |
| 2024-04-20 |
21 |
122 |
| 2024-04-20 |
22 |
132 |
| 2024-04-20 |
23 |
153 |
| 2024-04-21 |
00 |
126 |
| 2024-04-21 |
01 |
170 |
| 2024-04-21 |
02 |
191 |
| 2024-04-21 |
03 |
280 |
| 2024-04-21 |
04 |
404 |
| 2024-04-21 |
05 |
381 |
| 2024-04-21 |
06 |
371 |
| 2024-04-21 |
07 |
288 |
| 2024-04-21 |
08 |
205 |
| 2024-04-21 |
09 |
176 |
| 2024-04-21 |
10 |
159 |
Sanikiluaq, SNK
Forecast hourly ranges for Sanikiluaq
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
165 |
| 2024-04-20 |
12 |
120 |
| 2024-04-20 |
13 |
94 |
| 2024-04-20 |
14 |
80 |
| 2024-04-20 |
15 |
70 |
| 2024-04-20 |
16 |
67 |
| 2024-04-20 |
17 |
65 |
| 2024-04-20 |
18 |
74 |
| 2024-04-20 |
19 |
81 |
| 2024-04-20 |
20 |
93 |
| 2024-04-20 |
21 |
98 |
| 2024-04-20 |
22 |
128 |
| 2024-04-20 |
23 |
137 |
| 2024-04-21 |
00 |
156 |
| 2024-04-21 |
01 |
180 |
| 2024-04-21 |
02 |
236 |
| 2024-04-21 |
03 |
287 |
| 2024-04-21 |
04 |
309 |
| 2024-04-21 |
05 |
260 |
| 2024-04-21 |
06 |
200 |
| 2024-04-21 |
07 |
195 |
| 2024-04-21 |
08 |
168 |
| 2024-04-21 |
09 |
171 |
| 2024-04-21 |
10 |
179 |
Meanook, MEA
Forecast hourly ranges for Meanook
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
171 |
| 2024-04-20 |
12 |
154 |
| 2024-04-20 |
13 |
149 |
| 2024-04-20 |
14 |
128 |
| 2024-04-20 |
15 |
113 |
| 2024-04-20 |
16 |
102 |
| 2024-04-20 |
17 |
90 |
| 2024-04-20 |
18 |
81 |
| 2024-04-20 |
19 |
77 |
| 2024-04-20 |
20 |
77 |
| 2024-04-20 |
21 |
78 |
| 2024-04-20 |
22 |
83 |
| 2024-04-20 |
23 |
77 |
| 2024-04-21 |
00 |
77 |
| 2024-04-21 |
01 |
76 |
| 2024-04-21 |
02 |
88 |
| 2024-04-21 |
03 |
131 |
| 2024-04-21 |
04 |
143 |
| 2024-04-21 |
05 |
167 |
| 2024-04-21 |
06 |
190 |
| 2024-04-21 |
07 |
201 |
| 2024-04-21 |
08 |
171 |
| 2024-04-21 |
09 |
156 |
| 2024-04-21 |
10 |
130 |
Brandon, BRD
Forecast hourly ranges for Brandon
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
70 |
| 2024-04-20 |
12 |
59 |
| 2024-04-20 |
13 |
53 |
| 2024-04-20 |
14 |
45 |
| 2024-04-20 |
15 |
41 |
| 2024-04-20 |
16 |
39 |
| 2024-04-20 |
17 |
38 |
| 2024-04-20 |
18 |
42 |
| 2024-04-20 |
19 |
44 |
| 2024-04-20 |
20 |
47 |
| 2024-04-20 |
21 |
47 |
| 2024-04-20 |
22 |
54 |
| 2024-04-20 |
23 |
54 |
| 2024-04-21 |
00 |
58 |
| 2024-04-21 |
01 |
62 |
| 2024-04-21 |
02 |
72 |
| 2024-04-21 |
03 |
85 |
| 2024-04-21 |
04 |
105 |
| 2024-04-21 |
05 |
117 |
| 2024-04-21 |
06 |
104 |
| 2024-04-21 |
07 |
105 |
| 2024-04-21 |
08 |
88 |
| 2024-04-21 |
09 |
87 |
| 2024-04-21 |
10 |
74 |
St Johns, STJ
Forecast hourly ranges for St Johns
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
27 |
| 2024-04-20 |
12 |
25 |
| 2024-04-20 |
13 |
23 |
| 2024-04-20 |
14 |
20 |
| 2024-04-20 |
15 |
19 |
| 2024-04-20 |
16 |
21 |
| 2024-04-20 |
17 |
24 |
| 2024-04-20 |
18 |
27 |
| 2024-04-20 |
19 |
27 |
| 2024-04-20 |
20 |
26 |
| 2024-04-20 |
21 |
27 |
| 2024-04-20 |
22 |
23 |
| 2024-04-20 |
23 |
23 |
| 2024-04-21 |
00 |
23 |
| 2024-04-21 |
01 |
25 |
| 2024-04-21 |
02 |
25 |
| 2024-04-21 |
03 |
26 |
| 2024-04-21 |
04 |
25 |
| 2024-04-21 |
05 |
24 |
| 2024-04-21 |
06 |
22 |
| 2024-04-21 |
07 |
23 |
| 2024-04-21 |
08 |
23 |
| 2024-04-21 |
09 |
28 |
| 2024-04-21 |
10 |
34 |
Ottawa, OTT
Forecast hourly ranges for Ottawa
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
27 |
| 2024-04-20 |
12 |
33 |
| 2024-04-20 |
13 |
38 |
| 2024-04-20 |
14 |
37 |
| 2024-04-20 |
15 |
35 |
| 2024-04-20 |
16 |
33 |
| 2024-04-20 |
17 |
33 |
| 2024-04-20 |
18 |
37 |
| 2024-04-20 |
19 |
42 |
| 2024-04-20 |
20 |
46 |
| 2024-04-20 |
21 |
47 |
| 2024-04-20 |
22 |
46 |
| 2024-04-20 |
23 |
45 |
| 2024-04-21 |
00 |
31 |
| 2024-04-21 |
01 |
34 |
| 2024-04-21 |
02 |
40 |
| 2024-04-21 |
03 |
46 |
| 2024-04-21 |
04 |
51 |
| 2024-04-21 |
05 |
52 |
| 2024-04-21 |
06 |
48 |
| 2024-04-21 |
07 |
48 |
| 2024-04-21 |
08 |
43 |
| 2024-04-21 |
09 |
39 |
| 2024-04-21 |
10 |
36 |
Victoria, VIC
Forecast hourly ranges for Victoria
| Date |
Hour |
Hourly range (nT) |
| 2024-04-20 |
11 |
33 |
| 2024-04-20 |
12 |
32 |
| 2024-04-20 |
13 |
32 |
| 2024-04-20 |
14 |
32 |
| 2024-04-20 |
15 |
36 |
| 2024-04-20 |
16 |
41 |
| 2024-04-20 |
17 |
41 |
| 2024-04-20 |
18 |
38 |
| 2024-04-20 |
19 |
39 |
| 2024-04-20 |
20 |
36 |
| 2024-04-20 |
21 |
39 |
| 2024-04-20 |
22 |
44 |
| 2024-04-20 |
23 |
43 |
| 2024-04-21 |
00 |
39 |
| 2024-04-21 |
01 |
36 |
| 2024-04-21 |
02 |
33 |
| 2024-04-21 |
03 |
34 |
| 2024-04-21 |
04 |
29 |
| 2024-04-21 |
05 |
30 |
| 2024-04-21 |
06 |
32 |
| 2024-04-21 |
07 |
34 |
| 2024-04-21 |
08 |
30 |
| 2024-04-21 |
09 |
28 |
| 2024-04-21 |
10 |
28 |
