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) |
| 2024-04-19 |
20 |
189 |
| 2024-04-19 |
21 |
142 |
| 2024-04-19 |
22 |
115 |
| 2024-04-19 |
23 |
102 |
| 2024-04-20 |
00 |
88 |
| 2024-04-20 |
01 |
81 |
| 2024-04-20 |
02 |
73 |
| 2024-04-20 |
03 |
66 |
| 2024-04-20 |
04 |
54 |
| 2024-04-20 |
05 |
59 |
| 2024-04-20 |
06 |
51 |
| 2024-04-20 |
07 |
51 |
| 2024-04-20 |
08 |
48 |
| 2024-04-20 |
09 |
56 |
| 2024-04-20 |
10 |
61 |
| 2024-04-20 |
11 |
71 |
| 2024-04-20 |
12 |
85 |
| 2024-04-20 |
13 |
106 |
| 2024-04-20 |
14 |
125 |
| 2024-04-20 |
15 |
142 |
| 2024-04-20 |
16 |
170 |
| 2024-04-20 |
17 |
177 |
| 2024-04-20 |
18 |
187 |
| 2024-04-20 |
19 |
174 |
Auroral, AUR
Forecast hourly ranges for Auroral
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
324 |
| 2024-04-19 |
21 |
307 |
| 2024-04-19 |
22 |
299 |
| 2024-04-19 |
23 |
304 |
| 2024-04-20 |
00 |
275 |
| 2024-04-20 |
01 |
294 |
| 2024-04-20 |
02 |
336 |
| 2024-04-20 |
03 |
388 |
| 2024-04-20 |
04 |
513 |
| 2024-04-20 |
05 |
472 |
| 2024-04-20 |
06 |
446 |
| 2024-04-20 |
07 |
437 |
| 2024-04-20 |
08 |
339 |
| 2024-04-20 |
09 |
259 |
| 2024-04-20 |
10 |
209 |
| 2024-04-20 |
11 |
196 |
| 2024-04-20 |
12 |
217 |
| 2024-04-20 |
13 |
287 |
| 2024-04-20 |
14 |
278 |
| 2024-04-20 |
15 |
237 |
| 2024-04-20 |
16 |
241 |
| 2024-04-20 |
17 |
206 |
| 2024-04-20 |
18 |
190 |
| 2024-04-20 |
19 |
174 |
Sub-auroral, SUB
Forecast hourly ranges for Sub-auroral
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
117 |
| 2024-04-19 |
21 |
111 |
| 2024-04-19 |
22 |
104 |
| 2024-04-19 |
23 |
96 |
| 2024-04-20 |
00 |
77 |
| 2024-04-20 |
01 |
74 |
| 2024-04-20 |
02 |
75 |
| 2024-04-20 |
03 |
76 |
| 2024-04-20 |
04 |
74 |
| 2024-04-20 |
05 |
70 |
| 2024-04-20 |
06 |
61 |
| 2024-04-20 |
07 |
55 |
| 2024-04-20 |
08 |
44 |
| 2024-04-20 |
09 |
40 |
| 2024-04-20 |
10 |
37 |
| 2024-04-20 |
11 |
38 |
| 2024-04-20 |
12 |
43 |
| 2024-04-20 |
13 |
47 |
| 2024-04-20 |
14 |
45 |
| 2024-04-20 |
15 |
43 |
| 2024-04-20 |
16 |
40 |
| 2024-04-20 |
17 |
39 |
| 2024-04-20 |
18 |
42 |
| 2024-04-20 |
19 |
46 |
Eureka, EUA
Forecast hourly ranges for Eureka
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
189 |
| 2024-04-19 |
21 |
142 |
| 2024-04-19 |
22 |
115 |
| 2024-04-19 |
23 |
102 |
| 2024-04-20 |
00 |
88 |
| 2024-04-20 |
01 |
81 |
| 2024-04-20 |
02 |
73 |
| 2024-04-20 |
03 |
66 |
| 2024-04-20 |
04 |
54 |
| 2024-04-20 |
05 |
59 |
| 2024-04-20 |
06 |
51 |
| 2024-04-20 |
07 |
49 |
| 2024-04-20 |
08 |
46 |
| 2024-04-20 |
09 |
54 |
| 2024-04-20 |
10 |
58 |
| 2024-04-20 |
11 |
68 |
| 2024-04-20 |
12 |
81 |
| 2024-04-20 |
13 |
101 |
| 2024-04-20 |
14 |
119 |
| 2024-04-20 |
15 |
136 |
| 2024-04-20 |
16 |
162 |
| 2024-04-20 |
17 |
169 |
| 2024-04-20 |
18 |
179 |
| 2024-04-20 |
19 |
166 |
Resolute Bay, RES
Forecast hourly ranges for Resolute Bay
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
185 |
| 2024-04-19 |
21 |
137 |
| 2024-04-19 |
22 |
110 |
| 2024-04-19 |
23 |
97 |
| 2024-04-20 |
00 |
84 |
| 2024-04-20 |
01 |
77 |
| 2024-04-20 |
02 |
70 |
| 2024-04-20 |
03 |
64 |
| 2024-04-20 |
04 |
52 |
| 2024-04-20 |
05 |
59 |
| 2024-04-20 |
06 |
51 |
| 2024-04-20 |
07 |
51 |
| 2024-04-20 |
08 |
48 |
| 2024-04-20 |
09 |
56 |
| 2024-04-20 |
10 |
61 |
| 2024-04-20 |
11 |
71 |
| 2024-04-20 |
12 |
85 |
| 2024-04-20 |
13 |
106 |
| 2024-04-20 |
14 |
125 |
| 2024-04-20 |
15 |
142 |
| 2024-04-20 |
16 |
170 |
| 2024-04-20 |
17 |
177 |
| 2024-04-20 |
18 |
187 |
| 2024-04-20 |
19 |
174 |
Cambridge Bay, CBB
Forecast hourly ranges for Cambridge Bay
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
200 |
| 2024-04-19 |
21 |
181 |
| 2024-04-19 |
22 |
139 |
| 2024-04-19 |
23 |
103 |
| 2024-04-20 |
00 |
77 |
| 2024-04-20 |
01 |
59 |
| 2024-04-20 |
02 |
54 |
| 2024-04-20 |
03 |
54 |
| 2024-04-20 |
04 |
56 |
| 2024-04-20 |
05 |
64 |
| 2024-04-20 |
06 |
60 |
| 2024-04-20 |
07 |
55 |
| 2024-04-20 |
08 |
52 |
| 2024-04-20 |
09 |
46 |
| 2024-04-20 |
10 |
47 |
| 2024-04-20 |
11 |
52 |
| 2024-04-20 |
12 |
62 |
| 2024-04-20 |
13 |
71 |
| 2024-04-20 |
14 |
91 |
| 2024-04-20 |
15 |
112 |
| 2024-04-20 |
16 |
149 |
| 2024-04-20 |
17 |
191 |
| 2024-04-20 |
18 |
204 |
| 2024-04-20 |
19 |
196 |
Baker Lake, BLC
Forecast hourly ranges for Baker Lake
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
198 |
| 2024-04-19 |
21 |
173 |
| 2024-04-19 |
22 |
137 |
| 2024-04-19 |
23 |
110 |
| 2024-04-20 |
00 |
88 |
| 2024-04-20 |
01 |
99 |
| 2024-04-20 |
02 |
130 |
| 2024-04-20 |
03 |
141 |
| 2024-04-20 |
04 |
156 |
| 2024-04-20 |
05 |
166 |
| 2024-04-20 |
06 |
146 |
| 2024-04-20 |
07 |
129 |
| 2024-04-20 |
08 |
96 |
| 2024-04-20 |
09 |
90 |
| 2024-04-20 |
10 |
94 |
| 2024-04-20 |
11 |
100 |
| 2024-04-20 |
12 |
126 |
| 2024-04-20 |
13 |
154 |
| 2024-04-20 |
14 |
211 |
| 2024-04-20 |
15 |
237 |
| 2024-04-20 |
16 |
241 |
| 2024-04-20 |
17 |
206 |
| 2024-04-20 |
18 |
190 |
| 2024-04-20 |
19 |
174 |
Iqaluit, IQA
Forecast hourly ranges for Iqaluit
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
270 |
| 2024-04-19 |
21 |
241 |
| 2024-04-19 |
22 |
230 |
| 2024-04-19 |
23 |
259 |
| 2024-04-20 |
00 |
299 |
| 2024-04-20 |
01 |
327 |
| 2024-04-20 |
02 |
301 |
| 2024-04-20 |
03 |
235 |
| 2024-04-20 |
04 |
205 |
| 2024-04-20 |
05 |
186 |
| 2024-04-20 |
06 |
151 |
| 2024-04-20 |
07 |
141 |
| 2024-04-20 |
08 |
155 |
| 2024-04-20 |
09 |
200 |
| 2024-04-20 |
10 |
269 |
| 2024-04-20 |
11 |
293 |
| 2024-04-20 |
12 |
277 |
| 2024-04-20 |
13 |
255 |
| 2024-04-20 |
14 |
232 |
| 2024-04-20 |
15 |
206 |
| 2024-04-20 |
16 |
224 |
| 2024-04-20 |
17 |
236 |
| 2024-04-20 |
18 |
218 |
| 2024-04-20 |
19 |
187 |
Yellowknife, YKC
Forecast hourly ranges for Yellowknife
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
253 |
| 2024-04-19 |
21 |
249 |
| 2024-04-19 |
22 |
253 |
| 2024-04-19 |
23 |
245 |
| 2024-04-20 |
00 |
224 |
| 2024-04-20 |
01 |
236 |
| 2024-04-20 |
02 |
222 |
| 2024-04-20 |
03 |
239 |
| 2024-04-20 |
04 |
285 |
| 2024-04-20 |
05 |
375 |
| 2024-04-20 |
06 |
437 |
| 2024-04-20 |
07 |
437 |
| 2024-04-20 |
08 |
339 |
| 2024-04-20 |
09 |
259 |
| 2024-04-20 |
10 |
209 |
| 2024-04-20 |
11 |
184 |
| 2024-04-20 |
12 |
213 |
| 2024-04-20 |
13 |
287 |
| 2024-04-20 |
14 |
278 |
| 2024-04-20 |
15 |
226 |
| 2024-04-20 |
16 |
172 |
| 2024-04-20 |
17 |
144 |
| 2024-04-20 |
18 |
123 |
| 2024-04-20 |
19 |
109 |
Fort Churchill, FCC
Forecast hourly ranges for Fort Churchill
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
324 |
| 2024-04-19 |
21 |
307 |
| 2024-04-19 |
22 |
299 |
| 2024-04-19 |
23 |
304 |
| 2024-04-20 |
00 |
259 |
| 2024-04-20 |
01 |
294 |
| 2024-04-20 |
02 |
303 |
| 2024-04-20 |
03 |
388 |
| 2024-04-20 |
04 |
513 |
| 2024-04-20 |
05 |
472 |
| 2024-04-20 |
06 |
446 |
| 2024-04-20 |
07 |
338 |
| 2024-04-20 |
08 |
230 |
| 2024-04-20 |
09 |
198 |
| 2024-04-20 |
10 |
178 |
| 2024-04-20 |
11 |
196 |
| 2024-04-20 |
12 |
217 |
| 2024-04-20 |
13 |
226 |
| 2024-04-20 |
14 |
191 |
| 2024-04-20 |
15 |
154 |
| 2024-04-20 |
16 |
141 |
| 2024-04-20 |
17 |
128 |
| 2024-04-20 |
18 |
124 |
| 2024-04-20 |
19 |
126 |
Sanikiluaq, SNK
Forecast hourly ranges for Sanikiluaq
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
257 |
| 2024-04-19 |
21 |
249 |
| 2024-04-19 |
22 |
269 |
| 2024-04-19 |
23 |
266 |
| 2024-04-20 |
00 |
275 |
| 2024-04-20 |
01 |
288 |
| 2024-04-20 |
02 |
336 |
| 2024-04-20 |
03 |
380 |
| 2024-04-20 |
04 |
391 |
| 2024-04-20 |
05 |
324 |
| 2024-04-20 |
06 |
245 |
| 2024-04-20 |
07 |
227 |
| 2024-04-20 |
08 |
185 |
| 2024-04-20 |
09 |
188 |
| 2024-04-20 |
10 |
196 |
| 2024-04-20 |
11 |
180 |
| 2024-04-20 |
12 |
130 |
| 2024-04-20 |
13 |
102 |
| 2024-04-20 |
14 |
87 |
| 2024-04-20 |
15 |
76 |
| 2024-04-20 |
16 |
73 |
| 2024-04-20 |
17 |
71 |
| 2024-04-20 |
18 |
81 |
| 2024-04-20 |
19 |
89 |
Meanook, MEA
Forecast hourly ranges for Meanook
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
137 |
| 2024-04-19 |
21 |
138 |
| 2024-04-19 |
22 |
143 |
| 2024-04-19 |
23 |
138 |
| 2024-04-20 |
00 |
132 |
| 2024-04-20 |
01 |
125 |
| 2024-04-20 |
02 |
133 |
| 2024-04-20 |
03 |
175 |
| 2024-04-20 |
04 |
184 |
| 2024-04-20 |
05 |
205 |
| 2024-04-20 |
06 |
225 |
| 2024-04-20 |
07 |
231 |
| 2024-04-20 |
08 |
192 |
| 2024-04-20 |
09 |
175 |
| 2024-04-20 |
10 |
146 |
| 2024-04-20 |
11 |
124 |
| 2024-04-20 |
12 |
109 |
| 2024-04-20 |
13 |
109 |
| 2024-04-20 |
14 |
92 |
| 2024-04-20 |
15 |
81 |
| 2024-04-20 |
16 |
74 |
| 2024-04-20 |
17 |
67 |
| 2024-04-20 |
18 |
62 |
| 2024-04-20 |
19 |
64 |
Brandon, BRD
Forecast hourly ranges for Brandon
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
160 |
| 2024-04-19 |
21 |
153 |
| 2024-04-19 |
22 |
153 |
| 2024-04-19 |
23 |
144 |
| 2024-04-20 |
00 |
139 |
| 2024-04-20 |
01 |
135 |
| 2024-04-20 |
02 |
137 |
| 2024-04-20 |
03 |
143 |
| 2024-04-20 |
04 |
156 |
| 2024-04-20 |
05 |
160 |
| 2024-04-20 |
06 |
137 |
| 2024-04-20 |
07 |
128 |
| 2024-04-20 |
08 |
100 |
| 2024-04-20 |
09 |
98 |
| 2024-04-20 |
10 |
84 |
| 2024-04-20 |
11 |
65 |
| 2024-04-20 |
12 |
53 |
| 2024-04-20 |
13 |
48 |
| 2024-04-20 |
14 |
41 |
| 2024-04-20 |
15 |
36 |
| 2024-04-20 |
16 |
36 |
| 2024-04-20 |
17 |
36 |
| 2024-04-20 |
18 |
42 |
| 2024-04-20 |
19 |
45 |
St Johns, STJ
Forecast hourly ranges for St Johns
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
74 |
| 2024-04-19 |
21 |
70 |
| 2024-04-19 |
22 |
62 |
| 2024-04-19 |
23 |
57 |
| 2024-04-20 |
00 |
53 |
| 2024-04-20 |
01 |
51 |
| 2024-04-20 |
02 |
48 |
| 2024-04-20 |
03 |
44 |
| 2024-04-20 |
04 |
39 |
| 2024-04-20 |
05 |
34 |
| 2024-04-20 |
06 |
29 |
| 2024-04-20 |
07 |
25 |
| 2024-04-20 |
08 |
22 |
| 2024-04-20 |
09 |
27 |
| 2024-04-20 |
10 |
32 |
| 2024-04-20 |
11 |
34 |
| 2024-04-20 |
12 |
31 |
| 2024-04-20 |
13 |
28 |
| 2024-04-20 |
14 |
25 |
| 2024-04-20 |
15 |
24 |
| 2024-04-20 |
16 |
24 |
| 2024-04-20 |
17 |
27 |
| 2024-04-20 |
18 |
29 |
| 2024-04-20 |
19 |
28 |
Ottawa, OTT
Forecast hourly ranges for Ottawa
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
117 |
| 2024-04-19 |
21 |
111 |
| 2024-04-19 |
22 |
104 |
| 2024-04-19 |
23 |
96 |
| 2024-04-20 |
00 |
77 |
| 2024-04-20 |
01 |
74 |
| 2024-04-20 |
02 |
75 |
| 2024-04-20 |
03 |
76 |
| 2024-04-20 |
04 |
74 |
| 2024-04-20 |
05 |
70 |
| 2024-04-20 |
06 |
61 |
| 2024-04-20 |
07 |
55 |
| 2024-04-20 |
08 |
44 |
| 2024-04-20 |
09 |
40 |
| 2024-04-20 |
10 |
37 |
| 2024-04-20 |
11 |
38 |
| 2024-04-20 |
12 |
43 |
| 2024-04-20 |
13 |
47 |
| 2024-04-20 |
14 |
45 |
| 2024-04-20 |
15 |
43 |
| 2024-04-20 |
16 |
40 |
| 2024-04-20 |
17 |
39 |
| 2024-04-20 |
18 |
42 |
| 2024-04-20 |
19 |
46 |
Victoria, VIC
Forecast hourly ranges for Victoria
| Date |
Hour |
Hourly range (nT) |
| 2024-04-19 |
20 |
57 |
| 2024-04-19 |
21 |
58 |
| 2024-04-19 |
22 |
62 |
| 2024-04-19 |
23 |
59 |
| 2024-04-20 |
00 |
54 |
| 2024-04-20 |
01 |
49 |
| 2024-04-20 |
02 |
44 |
| 2024-04-20 |
03 |
43 |
| 2024-04-20 |
04 |
37 |
| 2024-04-20 |
05 |
35 |
| 2024-04-20 |
06 |
35 |
| 2024-04-20 |
07 |
35 |
| 2024-04-20 |
08 |
30 |
| 2024-04-20 |
09 |
28 |
| 2024-04-20 |
10 |
28 |
| 2024-04-20 |
11 |
26 |
| 2024-04-20 |
12 |
26 |
| 2024-04-20 |
13 |
26 |
| 2024-04-20 |
14 |
27 |
| 2024-04-20 |
15 |
31 |
| 2024-04-20 |
16 |
36 |
| 2024-04-20 |
17 |
37 |
| 2024-04-20 |
18 |
34 |
| 2024-04-20 |
19 |
36 |
