SeadedLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 05:59 | - | - | - | - | - | - |
| 05:58 | 4.21 | 565.1 | - | - | - | - |
| 05:57 | 4.30 | 530.1 | -5.28 | - | - | - |
| 05:56 | 3.42 | 520.7 | -4.14 | - | - | - |
| 05:55 | 4.28 | 558.3 | -4.31 | - | - | - |
| 05:54 | 6.32 | 556.9 | -5.28 | - | - | - |
| 05:53 | 3.37 | 558.6 | -5.19 | - | - | - |
| 05:52 | 3.02 | 505.9 | -5.01 | - | - | - |
| 05:51 | 3.54 | 563.4 | -5.53 | - | - | - |
| 05:50 | 9.47 | 578.8 | -8.03 | - | - | - |
| 05:49 | 4.56 | 548.3 | -7.30 | - | - | - |
| 05:48 | 3.09 | 505.4 | -7.28 | 3.1 | 505.4 | -7.3 |
| 05:47 | 3.43 | 540.1 | -7.65 | 3.4 | 540.1 | -7.6 |
| 05:46 | 5.71 | 557.6 | -7.02 | 5.7 | 557.6 | -7.0 |
| 05:45 | 4.72 | 563.9 | -6.80 | 4.7 | 563.9 | -6.8 |
| 05:44 | 3.20 | 538.4 | -6.44 | 3.2 | 538.4 | -6.4 |
| 05:43 | 3.36 | 548.3 | -6.65 | 3.4 | 548.3 | -6.6 |
| 05:42 | 4.73 | 565.4 | -6.64 | 4.7 | 565.4 | -6.6 |
| 05:41 | 4.98 | 525.5 | -5.14 | 5.0 | 525.5 | -5.1 |
| 05:40 | 3.35 | 502.1 | -5.77 | 3.4 | 502.1 | -5.8 |
| 05:39 | 3.48 | 542.6 | -5.59 | 3.5 | 542.6 | -5.6 |
| 05:38 | 4.12 | 564.5 | -5.56 | 4.1 | 564.5 | -5.6 |
| 05:37 | 3.33 | 523.4 | -5.63 | 3.3 | 523.4 | -5.6 |
| 05:36 | 3.34 | 504.6 | -5.30 | 3.3 | 504.6 | -5.3 |
| 05:35 | 3.78 | 555.3 | -5.41 | 3.8 | 555.3 | -5.4 |
| 05:34 | 3.97 | 567.9 | -5.19 | 4.0 | 567.9 | -5.2 |
| 05:33 | 5.82 | 551.4 | -4.82 | 5.8 | 551.4 | -4.8 |
| 05:32 | 3.82 | 531.2 | -4.82 | 3.8 | 531.2 | -4.8 |
| 05:31 | 3.27 | 545.7 | -5.33 | 3.3 | 545.7 | -5.3 |
| 05:30 | 5.07 | 550.8 | -5.06 | 5.1 | 550.8 | -5.1 |
| 05:29 | 4.29 | 563.5 | -5.34 | 4.3 | 563.5 | -5.3 |
| 05:28 | 3.44 | 524.4 | -3.74 | 3.4 | 524.4 | -3.7 |
| 05:27 | 3.48 | 488.8 | -5.20 | 3.5 | 488.8 | -5.2 |
| 05:26 | 3.68 | 558.4 | -3.98 | 3.7 | 558.4 | -4.0 |
| 05:25 | 3.72 | 556.4 | -2.79 | 3.7 | 556.4 | -2.8 |
| 05:24 | 3.78 | 550.5 | -2.98 | 3.8 | 550.5 | -3.0 |
| 05:23 | 3.66 | 551.9 | -3.29 | 3.7 | 551.9 | -3.3 |
| 05:22 | 3.90 | 575.1 | -3.27 | 3.9 | 575.1 | -3.3 |
| 05:21 | 6.55 | 572.9 | -3.54 | 6.6 | 572.9 | -3.5 |
| 05:20 | 3.36 | 544.7 | -3.40 | 3.4 | 544.7 | -3.4 |
| 05:19 | 3.41 | 546.4 | -5.95 | 3.4 | 546.4 | -6.0 |
| 05:18 | 3.58 | 562.9 | -6.85 | 3.6 | 562.9 | -6.8 |
| 05:17 | 3.50 | 567.2 | -5.73 | 3.5 | 567.2 | -5.7 |
| 05:16 | 3.11 | 510.1 | -6.45 | 3.1 | 510.1 | -6.5 |
| 05:15 | 3.18 | 539.3 | -7.75 | 3.2 | 539.3 | -7.7 |
| 05:14 | 3.35 | 565.1 | -7.57 | 3.3 | 565.1 | -7.6 |
| 05:13 | 3.68 | 564.1 | -6.55 | 3.7 | 564.1 | -6.5 |
| 05:12 | 3.14 | 533.8 | -5.14 | 3.1 | 533.8 | -5.1 |
| 05:11 | 4.15 | 553.1 | -5.36 | 4.1 | 553.1 | -5.4 |
| 05:10 | 4.14 | 580.1 | -4.89 | 4.1 | 580.1 | -4.9 |
| 05:09 | 2.47 | 566.2 | -3.40 | 2.5 | 566.2 | -3.4 |
| 05:08 | 2.57 | 553.7 | -2.65 | 2.6 | 553.7 | -2.6 |
| 05:07 | 1.74 | 527.8 | -2.21 | 1.7 | 527.8 | -2.2 |
| 05:06 | 3.21 | 568.2 | -4.68 | 3.2 | 568.2 | -4.7 |
| 05:05 | 5.20 | 550.2 | -7.10 | 5.2 | 550.2 | -7.1 |
| 05:04 | 2.87 | 581.1 | -6.42 | 2.9 | 581.1 | -6.4 |
| 05:03 | 2.74 | 550.5 | -6.58 | 2.7 | 550.5 | -6.6 |
| 05:02 | 3.42 | 552.2 | -5.82 | 3.4 | 552.2 | -5.8 |
| 05:01 | 3.31 | 569.0 | -5.26 | 3.3 | 569.0 | -5.3 |
| 05:00 | 3.24 | 556.6 | -5.14 | 3.2 | 556.6 | -5.1 |
| 04:59 | 5.44 | 515.2 | -5.61 | 5.4 | 515.2 | -5.6 |
| 04:58 | 2.00 | 461.0 | -6.20 | 2.0 | 461.0 | -6.2 |
| 04:57 | 1.96 | 523.4 | -5.73 | 2.0 | 523.4 | -5.7 |
| 04:56 | 3.03 | 547.8 | -3.79 | 3.0 | 547.8 | -3.8 |
| 04:55 | - | - | -3.52 | - | - | -3.5 |
| 04:54 | - | - | -5.14 | - | - | -5.1 |
| 04:53 | 3.01 | 568.6 | -4.52 | 3.0 | 568.6 | -4.5 |
| 04:52 | 2.97 | 563.5 | -4.10 | 3.0 | 563.5 | -4.1 |
| 04:51 | 2.87 | 553.7 | -3.84 | 2.9 | 553.7 | -3.8 |
| 04:50 | 2.93 | 564.7 | -3.46 | 2.9 | 564.7 | -3.5 |
| 04:49 | 3.32 | 586.4 | -3.51 | 3.3 | 586.4 | -3.5 |
| 04:48 | 3.24 | 583.4 | -2.81 | 3.2 | 583.4 | -2.8 |
| 04:47 | 3.14 | 564.7 | -3.10 | 3.1 | 564.7 | -3.1 |
| 04:46 | 3.20 | 574.5 | -2.81 | 3.2 | 574.5 | -2.8 |
| 04:45 | 5.23 | 555.0 | -2.48 | 5.2 | 555.0 | -2.5 |
| 04:44 | 3.50 | 571.1 | -3.33 | 3.5 | 571.1 | -3.3 |
| 04:43 | 3.06 | 560.3 | -4.77 | 3.1 | 560.3 | -4.8 |
| 04:42 | 3.45 | 557.3 | -4.21 | 3.4 | 557.3 | -4.2 |
| 04:41 | 3.61 | 567.4 | -7.16 | 3.6 | 567.4 | -7.2 |
| 04:40 | 3.74 | 556.6 | -7.19 | 3.7 | 556.6 | -7.2 |
| 04:39 | 3.71 | 542.4 | -6.44 | 3.7 | 542.4 | -6.4 |
| 04:38 | 3.57 | 559.0 | -7.25 | 3.6 | 559.0 | -7.3 |
| 04:37 | 3.57 | 580.3 | -7.76 | 3.6 | 580.3 | -7.8 |
| 04:36 | 3.56 | 569.3 | -7.40 | 3.6 | 569.3 | -7.4 |
| 04:35 | 3.47 | 559.4 | -7.09 | 3.5 | 559.4 | -7.1 |
| 04:34 | 3.19 | 576.2 | -6.99 | 3.2 | 576.2 | -7.0 |
| 04:33 | 3.63 | 577.3 | -6.90 | 3.6 | 577.3 | -6.9 |
| 04:32 | 3.63 | 567.0 | -6.91 | 3.6 | 567.0 | -6.9 |
| 04:31 | 3.71 | 558.8 | -6.62 | 3.7 | 558.8 | -6.6 |
| 04:30 | 3.94 | 566.2 | -6.58 | 3.9 | 566.2 | -6.6 |
| 04:29 | 4.04 | 575.7 | -7.27 | 4.0 | 575.7 | -7.3 |
| 04:28 | 0.77 | 453.7 | -6.90 | 0.8 | 453.7 | -6.9 |
| 04:27 | 3.00 | 528.0 | -7.31 | 3.0 | 528.0 | -7.3 |
| 04:26 | 3.67 | 561.7 | -7.56 | 3.7 | 561.7 | -7.6 |
| 04:25 | 3.68 | 567.8 | -7.55 | 3.7 | 567.8 | -7.6 |
| 04:24 | 3.70 | 557.0 | -7.52 | 3.7 | 557.0 | -7.5 |
| 04:23 | 3.33 | 530.1 | -6.91 | 3.3 | 530.1 | -6.9 |
| 04:22 | 1.99 | 497.3 | -6.66 | 2.0 | 497.3 | -6.7 |
| 04:21 | 0.69 | 476.3 | -5.55 | 0.7 | 476.3 | -5.6 |
| 04:20 | 3.65 | 558.5 | -4.82 | 3.6 | 558.5 | -4.8 |
| 04:19 | 3.64 | 556.4 | -4.90 | 3.6 | 556.4 | -4.9 |
| 04:18 | 3.71 | 554.5 | -4.80 | 3.7 | 554.5 | -4.8 |
| 04:17 | 4.08 | 579.5 | -4.71 | 4.1 | 579.5 | -4.7 |
| 04:16 | 4.08 | 570.9 | -6.00 | 4.1 | 570.9 | -6.0 |
| 04:15 | 3.96 | 552.4 | -5.38 | 4.0 | 552.4 | -5.4 |
| 04:14 | 4.08 | 544.1 | -5.01 | 4.1 | 544.1 | -5.0 |
| 04:13 | 4.34 | 568.4 | -5.20 | 4.3 | 568.4 | -5.2 |
| 04:12 | 4.43 | 579.7 | -6.51 | 4.4 | 579.7 | -6.5 |
| 04:11 | 4.27 | 556.7 | -6.81 | 4.3 | 556.7 | -6.8 |
| 04:10 | 4.42 | 561.8 | -6.94 | 4.4 | 561.8 | -6.9 |
| 04:09 | 4.44 | 583.7 | -6.53 | 4.4 | 583.7 | -6.5 |
| 04:08 | 4.18 | 578.7 | -6.03 | 4.2 | 578.7 | -6.0 |
| 04:07 | 3.97 | 564.6 | -5.35 | 4.0 | 564.6 | -5.3 |
| 04:06 | 3.71 | 547.4 | -3.79 | 3.7 | 547.4 | -3.8 |
| 04:05 | 3.35 | 538.2 | -5.39 | 3.4 | 538.2 | -5.4 |
| 04:04 | 2.31 | 518.2 | -5.48 | 2.3 | 518.2 | -5.5 |
| 04:03 | 0.93 | 450.8 | -6.26 | 0.9 | 450.8 | -6.3 |
| 04:02 | 3.29 | 516.8 | -6.44 | 3.3 | 516.8 | -6.4 |
| 04:01 | 3.50 | 550.2 | -6.09 | 3.5 | 550.2 | -6.1 |
| 04:00 | 3.47 | 552.9 | -6.52 | 3.5 | 552.9 | -6.5 |
Built 2024-09-17 06:00 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -7.8 | -2.2 | -4.8 |
| velocity [km/s] | 461.0 | 586.4 | 550.5 |
| density [cm-3] | 1.7 | 6.5 | 3.6 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 280 | 54 | 278 |
| Maasi (MAS) | 233 | 59 | 284 |
| Kilpisjärvi (KIL) | 234 | 60 | 283 |
| Ivalo (IVA) | 209 | 46 | 229 |
| Muonio (MUO) | 190 | 47 | 209 |
| Sodankylä (SOD) | 224 | 39 | 175 |
| Pello (PEL) | 233 | 37 | 181 |
| Oulujärvi (OUJ) | 80 | 24 | 92 |
| Mekrijärvi (MEK) | 52 | 13 | 55 |
| Hankasalmi (HAN) | 54 | 13 | 60 |
| Nurmijärvi (NUR) | 43 | 15 | 57 |
| Tartu (TAR) | 49 | 13 | 39 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2024-09-17 05:47 from source
Issue Time: 2024-09-17 05:21 UTC
WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024-09-17 05:21 UTC
Valid To: 2024-09-17 23:59 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024-09-17 05:21 UTC
Valid To: 2024-09-17 23:59 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor
Issue Time: 2024-09-17 04:35 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024-09-17 04:26 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024-09-17 04:26 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2024-09-17 03:53 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 03:46 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 03:46 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2024-09-17 03:31 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 03:31 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 03:31 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2024-09-17 03:00 UTC
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2024-09-17 02:57 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G4 - Severe
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2024-09-17 02:57 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G4 - Severe
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.
Issue Time: 2024-09-17 01:28 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024-09-17 01:27 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024-09-17 01:27 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2024-09-17 01:18 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024-09-17 01:20 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024-09-17 01:20 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2024-09-17 01:14 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 01:13 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024-09-17 01:13 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2024-09-17 01:05 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 01:03 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-09-17 01:03 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2024-09-17 01:05 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024-09-17 01:05 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024-09-17 01:05 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Issue Time: 2024-09-16 23:41 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-09-16 23:29 UTC
Deviation: 39 nT
Station: BOU
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-09-16 23:29 UTC
Deviation: 39 nT
Station: BOU
Issue Time: 2024-09-16 23:32 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4697
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4697
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-16 23:32 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 23:35 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 23:35 UTC
Valid To: 2024-09-17 12:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2024-09-16 23:02 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-09-16 23:10 UTC
Valid To: 2024-09-17 00:10 UTC
IP Shock Passage Observed: 2024-09-16 22:49 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-09-16 23:10 UTC
Valid To: 2024-09-17 00:10 UTC
IP Shock Passage Observed: 2024-09-16 22:49 UTC
Issue Time: 2024-09-16 14:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4696
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 03:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4696
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-17 03:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-16 10:28 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 10:28 UTC
Valid To: 2024-09-16 15:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-09-16 10:28 UTC
Valid To: 2024-09-16 15:00 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.
Issue Time: 2024-09-16 10:16 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3400
Begin Time: 2024-09-15 12:15 UTC
Yesterday Maximum 2MeV Flux: 1693 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3400
Begin Time: 2024-09-15 12:15 UTC
Yesterday Maximum 2MeV Flux: 1693 pfu
Issue Time: 2024-09-16 08:45 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4695
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4695
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 15:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-16 02:46 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4694
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 09:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4694
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 09:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-15 17:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4693
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 03:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4693
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-16 03:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-15 12:30 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024-09-15 12:15 UTC
Station: GOES16
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024-09-15 12:15 UTC
Station: GOES16
Issue Time: 2024-09-15 11:27 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4692
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 18:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4692
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 18:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-14 22:58 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4691
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4691
Valid From: 2024-09-12 03:55 UTC
Now Valid Until: 2024-09-15 12:00 UTC
Warning Condition: Persistence
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2024-09-14 21:04 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Sep 15: None (Below G1) Sep 16: G3 (Strong) Sep 17: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Sep 15: None (Below G1) Sep 16: G3 (Strong) Sep 17: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Issue Time: 2024-09-14 16:30 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2024-09-14 15:17 UTC
Maximum Time: 2024-09-14 15:32 UTC
End Time: 2024-09-14 15:55 UTC
Duration: 38 minutes
Peak Flux: 1000 sfu
Latest Penticton Noon Flux: 186 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
SUMMARY: 10cm Radio Burst
Begin Time: 2024-09-14 15:17 UTC
Maximum Time: 2024-09-14 15:32 UTC
End Time: 2024-09-14 15:55 UTC
Duration: 38 minutes
Peak Flux: 1000 sfu
Latest Penticton Noon Flux: 186 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Issue Time: 2024-09-14 15:53 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2024-09-14 15:13 UTC
Maximum Time: 2024-09-14 15:29 UTC
End Time: 2024-09-14 15:47 UTC
X-ray Class: X4.5
Optical Class: 2b
Location: S18E62
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
SUMMARY: X-ray Event exceeded X1
Begin Time: 2024-09-14 15:13 UTC
Maximum Time: 2024-09-14 15:29 UTC
End Time: 2024-09-14 15:47 UTC
X-ray Class: X4.5
Optical Class: 2b
Location: S18E62
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Issue Time: 2024-09-14 15:21 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024-09-14 15:18 UTC
NOAA Scale: R2 - Moderate
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024-09-14 15:18 UTC
NOAA Scale: R2 - Moderate
Built 2024-09-17 05:23 from source
