SettingsLast update:
| Time UTC | DSCOVR | ACE | ||||
|---|---|---|---|---|---|---|
| Solar Wind | GSM | Solar Wind | GSM | |||
| Proton Density | Bulk Speed | Bz | Proton Density | Bulk Speed | Bz | |
| 03:18 | - | - | - | - | - | - |
| 03:17 | - | - | - | - | - | - |
| 03:16 | - | - | - | - | - | - |
| 03:15 | 0.53 | 483.6 | 0.41 | - | - | - |
| 03:14 | 0.28 | 486.3 | 1.46 | - | - | - |
| 03:13 | 0.09 | 491.1 | -1.02 | - | - | - |
| 03:12 | 0.11 | 494.3 | -1.53 | - | - | - |
| 03:11 | 0.09 | 494.4 | -1.55 | - | - | - |
| 03:10 | 0.07 | 494.5 | -1.11 | - | - | - |
| 03:09 | 0.08 | 494.1 | -1.03 | - | - | - |
| 03:08 | 0.08 | 485.6 | -0.79 | - | - | - |
| 03:07 | 0.12 | 477.3 | -0.32 | 0.1 | 477.3 | -0.3 |
| 03:06 | 0.28 | 477.4 | -0.02 | 0.3 | 477.4 | -0.0 |
| 03:05 | 0.48 | 478.4 | 0.27 | 0.5 | 478.4 | 0.3 |
| 03:04 | - | - | 0.86 | - | - | 0.9 |
| 03:03 | 0.63 | 481.4 | 1.13 | 0.6 | 481.4 | 1.1 |
| 03:02 | 0.47 | 480.5 | 0.84 | 0.5 | 480.5 | 0.8 |
| 03:01 | 0.41 | 480.8 | 0.57 | 0.4 | 480.8 | 0.6 |
| 03:00 | 0.60 | 483.4 | 1.14 | 0.6 | 483.4 | 1.1 |
| 02:59 | 0.65 | 485.3 | 1.48 | - | - | 1.5 |
| 02:58 | 0.76 | 487.7 | 1.88 | 0.8 | 487.7 | 1.9 |
| 02:57 | 0.72 | 488.1 | 2.16 | 0.7 | 488.1 | 2.2 |
| 02:56 | 0.64 | 487.6 | 2.11 | 0.8 | 490.2 | 2.1 |
| 02:55 | 0.87 | 497.2 | 2.56 | 0.9 | 497.2 | 2.6 |
| 02:54 | 0.78 | 502.1 | 3.13 | 0.8 | 502.1 | 3.1 |
| 02:53 | 0.76 | 500.9 | 3.07 | 0.8 | 500.9 | 3.1 |
| 02:52 | 0.83 | 500.3 | 2.95 | 0.8 | 500.3 | 2.9 |
| 02:51 | 1.06 | 496.0 | 3.02 | 1.1 | 496.0 | 3.0 |
| 02:50 | 1.03 | 499.2 | 2.90 | 1.0 | 499.2 | 2.9 |
| 02:49 | 0.91 | 502.9 | 2.77 | 0.9 | 502.9 | 2.8 |
| 02:48 | 0.81 | 503.9 | 3.18 | 0.8 | 503.9 | 3.2 |
| 02:47 | 0.74 | 509.9 | 2.97 | 0.7 | 509.9 | 3.0 |
| 02:46 | 0.82 | 505.5 | 2.88 | 0.8 | 505.5 | 2.9 |
| 02:45 | 0.82 | 505.7 | 2.95 | 0.8 | 505.7 | 2.9 |
| 02:44 | 0.90 | 502.4 | 2.73 | 0.9 | 502.4 | 2.7 |
| 02:43 | 0.87 | 503.6 | 2.79 | 0.9 | 503.6 | 2.8 |
| 02:42 | 0.80 | 501.5 | 2.96 | 0.8 | 501.5 | 3.0 |
| 02:41 | 0.83 | 497.1 | 2.62 | 0.8 | 497.1 | 2.6 |
| 02:40 | 0.89 | 495.2 | 2.83 | 0.9 | 495.2 | 2.8 |
| 02:39 | 0.72 | 503.5 | 2.90 | 0.7 | 503.5 | 2.9 |
| 02:38 | 0.50 | 512.6 | 2.70 | 0.5 | 512.6 | 2.7 |
| 02:37 | 0.57 | 509.2 | 2.55 | 0.6 | 509.2 | 2.5 |
| 02:36 | 0.64 | 508.9 | 2.43 | 0.6 | 508.9 | 2.4 |
| 02:35 | 0.55 | 511.1 | 2.58 | 0.5 | 511.1 | 2.6 |
| 02:34 | 0.58 | 508.8 | 2.62 | 0.6 | 508.8 | 2.6 |
| 02:33 | 0.60 | 510.2 | 2.60 | 0.6 | 510.2 | 2.6 |
| 02:32 | 0.79 | 501.6 | 2.64 | 0.8 | 501.6 | 2.6 |
| 02:31 | 0.79 | - | 2.79 | 0.8 | - | 2.8 |
| 02:30 | 0.77 | 503.0 | 2.87 | 0.8 | 503.0 | 2.9 |
| 02:29 | 0.78 | 499.9 | 3.07 | 0.8 | 499.9 | 3.1 |
| 02:28 | 0.66 | 501.7 | 2.97 | 0.7 | 501.7 | 3.0 |
| 02:27 | 0.74 | 500.9 | 2.95 | 0.7 | 500.9 | 2.9 |
| 02:26 | 0.79 | 500.5 | 3.11 | 0.8 | 500.5 | 3.1 |
| 02:25 | 0.76 | 500.1 | 3.30 | 0.8 | 500.1 | 3.3 |
| 02:24 | 0.71 | 499.9 | 3.23 | 0.7 | 499.9 | 3.2 |
| 02:23 | 0.70 | 495.6 | 3.01 | 0.7 | 495.6 | 3.0 |
| 02:22 | 0.73 | 489.8 | 2.78 | 0.8 | 489.5 | 2.8 |
| 02:21 | 0.86 | 490.5 | 3.10 | 0.9 | 490.5 | 3.1 |
| 02:20 | 0.82 | 493.1 | 3.08 | 0.8 | 493.1 | 3.1 |
| 02:19 | 0.75 | 491.6 | 3.08 | 0.8 | 491.6 | 3.1 |
| 02:18 | 0.68 | 493.2 | 2.81 | 0.7 | 493.2 | 2.8 |
| 02:17 | 0.74 | 499.3 | 2.84 | 0.7 | 499.3 | 2.8 |
| 02:16 | 0.65 | 502.6 | 3.22 | 0.7 | 502.6 | 3.2 |
| 02:15 | 0.73 | 499.8 | 3.10 | 0.7 | 499.8 | 3.1 |
| 02:14 | 0.67 | 500.3 | 3.08 | 0.7 | 500.3 | 3.1 |
| 02:13 | 0.60 | 499.1 | 2.95 | 0.6 | 499.1 | 3.0 |
| 02:12 | 0.62 | 496.7 | 2.81 | 0.6 | 496.7 | 2.8 |
| 02:11 | 0.55 | 492.6 | 2.07 | 0.5 | 492.6 | 2.1 |
| 02:10 | 0.60 | 490.9 | 2.20 | 0.6 | 490.9 | 2.2 |
| 02:09 | 0.60 | 489.4 | 2.11 | 0.6 | 489.4 | 2.1 |
| 02:08 | 0.59 | 489.9 | 2.00 | 0.6 | 489.9 | 2.0 |
| 02:07 | 0.61 | 492.7 | 2.14 | 0.6 | 492.7 | 2.1 |
| 02:06 | 0.66 | 491.3 | 2.31 | 0.7 | 491.3 | 2.3 |
| 02:05 | 0.69 | 485.4 | 2.26 | 0.7 | 485.4 | 2.3 |
| 02:04 | 0.60 | 484.9 | 2.35 | 0.6 | 484.9 | 2.3 |
| 02:03 | 0.72 | 487.5 | 1.93 | 0.7 | 487.5 | 1.9 |
| 02:02 | 0.54 | 487.4 | 1.82 | 0.5 | 487.4 | 1.8 |
| 02:01 | 0.50 | 506.2 | 2.05 | 0.5 | 506.2 | 2.1 |
| 02:00 | 0.43 | 509.4 | 1.87 | 0.4 | 509.4 | 1.9 |
| 01:59 | 0.43 | - | 1.77 | 0.5 | 510.4 | 1.8 |
| 01:58 | 0.53 | 510.4 | 1.75 | 0.5 | 510.4 | 1.7 |
| 01:57 | 0.58 | 492.6 | 2.04 | 0.6 | 492.6 | 2.0 |
| 01:56 | 0.54 | 494.7 | 2.31 | 0.5 | 494.7 | 2.3 |
| 01:55 | 0.53 | 495.3 | 1.91 | 0.5 | 495.3 | 1.9 |
| 01:54 | 0.62 | 493.6 | 1.97 | 0.6 | 493.6 | 2.0 |
| 01:53 | 0.69 | 494.1 | 2.29 | 0.7 | 494.1 | 2.3 |
| 01:52 | 0.57 | 501.7 | 2.38 | 0.6 | 501.7 | 2.4 |
| 01:51 | 0.47 | 502.2 | 2.17 | 0.5 | 502.2 | 2.2 |
| 01:50 | 0.57 | 495.6 | 2.28 | 0.6 | 495.6 | 2.3 |
| 01:49 | 0.66 | 498.9 | 2.59 | 0.7 | 498.9 | 2.6 |
| 01:48 | 0.56 | 501.8 | 2.58 | 0.6 | 501.8 | 2.6 |
| 01:47 | 0.63 | 501.1 | 2.71 | 0.6 | 501.1 | 2.7 |
| 01:46 | 0.63 | 502.5 | 2.76 | 0.6 | 502.5 | 2.8 |
| 01:45 | 0.55 | 497.9 | 2.82 | 0.5 | 497.9 | 2.8 |
| 01:44 | 0.57 | 496.3 | 2.79 | 0.6 | 496.3 | 2.8 |
| 01:43 | 0.85 | 500.3 | 2.80 | 0.9 | 500.3 | 2.8 |
| 01:42 | 0.70 | 499.0 | 2.62 | 0.7 | 499.0 | 2.6 |
| 01:41 | 0.70 | 495.8 | 2.81 | 0.7 | 495.8 | 2.8 |
| 01:40 | 0.94 | 497.7 | 2.83 | 0.9 | 497.7 | 2.8 |
| 01:39 | 0.77 | 494.3 | 2.67 | 0.8 | 494.3 | 2.7 |
| 01:38 | 0.70 | 494.1 | 2.35 | 0.7 | 494.1 | 2.3 |
| 01:37 | 0.77 | 494.6 | 2.52 | 0.8 | 494.6 | 2.5 |
| 01:36 | 0.76 | 493.5 | 2.66 | 0.8 | 493.5 | 2.7 |
| 01:35 | 0.71 | 492.7 | 2.51 | 0.7 | 492.7 | 2.5 |
| 01:34 | 0.66 | 491.9 | 2.62 | 0.7 | 491.9 | 2.6 |
| 01:33 | 0.65 | 491.7 | 2.58 | 0.6 | 491.7 | 2.6 |
| 01:32 | 0.75 | 494.8 | 2.62 | 0.7 | 494.8 | 2.6 |
| 01:31 | 0.82 | 497.1 | 2.76 | 0.8 | 497.1 | 2.8 |
| 01:30 | 0.80 | 497.5 | 3.00 | 0.8 | 497.5 | 3.0 |
| 01:29 | 0.71 | 496.2 | 2.89 | 0.7 | 496.2 | 2.9 |
| 01:28 | 0.90 | 498.7 | 3.00 | 0.9 | 498.7 | 3.0 |
| 01:27 | 0.80 | 502.0 | 2.89 | 0.8 | 502.0 | 2.9 |
| 01:26 | 0.73 | 499.6 | 2.07 | 0.7 | 499.6 | 2.1 |
| 01:25 | 0.72 | 499.3 | 2.58 | 0.7 | 499.3 | 2.6 |
| 01:24 | 0.87 | 497.2 | 2.83 | 0.9 | 497.2 | 2.8 |
| 01:23 | 0.77 | 493.1 | 2.85 | 0.8 | 493.1 | 2.8 |
| 01:22 | 0.74 | 490.3 | 2.60 | 0.7 | 490.3 | 2.6 |
| 01:21 | 0.70 | 488.2 | 2.74 | 0.7 | 488.2 | 2.7 |
| 01:20 | 0.71 | 489.7 | 2.84 | 0.7 | 489.7 | 2.8 |
| 01:19 | 0.73 | 496.6 | 2.95 | 0.7 | 496.6 | 2.9 |
Built 2026-03-17 03:19 from source
| Solar wind parameters of the latest hour by NOAA | |||
|---|---|---|---|
| parameter | min | max | mean |
| IMF Bz [nT] | -1.6 | 3.3 | 2.2 |
| velocity [km/s] | 477.3 | 512.6 | 496.8 |
| density [cm-3] | 0.1 | 1.1 | 0.7 |
| Geomagnetic activity (RX [nT]) | ||
|---|---|---|
| site | latest hour | next hour (RXmin, RXmax) |
| Kevo (KEV) | 24 | 5 | 212 |
| Maasi (MAS) | 28 | 5 | 190 |
| Kilpisjärvi (KIL) | 28 | 5 | 209 |
| Ivalo (IVA) | 20 | 4 | 159 |
| Muonio (MUO) | 19 | 4 | 161 |
| Sodankylä (SOD) | 16 | 4 | 119 |
| Pello (PEL) | 16 | 4 | 106 |
| Oulujärvi (OUJ) | 10 | 3 | 56 |
| Mekrijärvi (MEK) | 7 | 2 | 25 |
| Hankasalmi (HAN) | 10 | 2 | 27 |
| Nurmijärvi (NUR) | 8 | 3 | 26 |
| Tartu (TAR) | 6 | 2 | 18 |
| low | increased | moderate | high | very high |
Short explanation of the method
AurorasNow! (Finnish Meteorological Institute)Built 2026-03-17 03:17 from source
Issue Time: 2026-03-16 21:08 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Mar 17: None (Below G1) Mar 18: None (Below G1) Mar 19: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of a CME that left the Sun on 16 Mar. This is a reissue of the previous watch to correct an internal system error.
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.
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Mar 17: None (Below G1) Mar 18: None (Below G1) Mar 19: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of a CME that left the Sun on 16 Mar. This is a reissue of the previous watch to correct an internal system error.
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: 2026-03-16 20:25 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Mar 17: None (Below G1) Mar 18: None (Below G1) Mar 19: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of the 16 Mar CME event. This event was associated with an M2.7 flare from AR 4392.
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.
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Mar 17: None (Below G1) Mar 18: None (Below G1) Mar 19: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of the 16 Mar CME event. This event was associated with an M2.7 flare from AR 4392.
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: 2026-03-16 13:20 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3647
Begin Time: 2026-03-15 16:30 UTC
Yesterday Maximum 2MeV Flux: 1429 pfu
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3647
Begin Time: 2026-03-15 16:30 UTC
Yesterday Maximum 2MeV Flux: 1429 pfu
Issue Time: 2026-03-16 12:29 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-03-16 12:09 UTC
Maximum Time: 2026-03-16 12:13 UTC
End Time: 2026-03-16 12:17 UTC
Duration: 8 minutes
Peak Flux: 380 sfu
Latest Penticton Noon Flux: 109 sfu
Comment: Associated with M2.7 flare from AR 4392.
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: 2026-03-16 12:09 UTC
Maximum Time: 2026-03-16 12:13 UTC
End Time: 2026-03-16 12:17 UTC
Duration: 8 minutes
Peak Flux: 380 sfu
Latest Penticton Noon Flux: 109 sfu
Comment: Associated with M2.7 flare from AR 4392.
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: 2026-03-16 12:26 UTC
ALERT: Type IV Radio Emission
Begin Time: 2026-03-16 12:12 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
ALERT: Type IV Radio Emission
Begin Time: 2026-03-16 12:12 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Issue Time: 2026-03-16 12:24 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-03-16 12:09 UTC
Estimated Velocity: 1227 km/s
Comment: Likely associated with M2.7 flare from AR 4392.
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
ALERT: Type II Radio Emission
Begin Time: 2026-03-16 12:09 UTC
Estimated Velocity: 1227 km/s
Comment: Likely associated with M2.7 flare from AR 4392.
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Issue Time: 2026-03-15 23:15 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 23:10 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 23:10 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-15 23:15 UTC
CANCEL ALERT: Geomagnetic K-index of 4
Cancel Serial Number: 2642
Original Issue Time: 2026-03-15 23:14 UTC
Comment: Incorrectly entered start time.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
CANCEL ALERT: Geomagnetic K-index of 4
Cancel Serial Number: 2642
Original Issue Time: 2026-03-15 23:14 UTC
Comment: Incorrectly entered start time.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-15 23:14 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 23:00 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 23:00 UTC
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-15 23:10 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-15 23:09 UTC
Valid To: 2026-03-16 12:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-15 23:09 UTC
Valid To: 2026-03-16 12:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-15 16:45 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-03-15 16:30 UTC
Station: GOES19
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026-03-15 16:30 UTC
Station: GOES19
Issue Time: 2026-03-15 11:22 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 11:22 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-15 11:22 UTC
Synoptic Period: 0900-1200 UTC
Active Warning: Yes
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-15 11:19 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-15 11:19 UTC
Valid To: 2026-03-15 21:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-15 11:19 UTC
Valid To: 2026-03-15 21:00 UTC
Warning Condition: Onset
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Issue Time: 2026-03-14 20:27 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5285
Valid From: 2026-03-13 01:56 UTC
Now Valid Until: 2026-03-15 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: 5285
Valid From: 2026-03-13 01:56 UTC
Now Valid Until: 2026-03-15 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: 2026-03-14 17:04 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 15: G1 (Minor) Mar 16: None (Below G1) Mar 17: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G1 (Minor) geomagnetic storming remains likely on 15 Mar due to ongoing CH HSS effects.
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.
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 15: G1 (Minor) Mar 16: None (Below G1) Mar 17: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: G1 (Minor) geomagnetic storming remains likely on 15 Mar due to ongoing CH HSS effects.
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: 2026-03-14 14:50 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-03-14 14:48 UTC
Synoptic Period: 1200-1500 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: 2026-03-14 14:48 UTC
Synoptic Period: 1200-1500 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: 2026-03-14 09:00 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-03-14 08:59 UTC
Synoptic Period: 0600-0900 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: 2026-03-14 08:59 UTC
Synoptic Period: 0600-0900 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: 2026-03-14 05:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5284
Valid From: 2026-03-13 01:56 UTC
Now Valid Until: 2026-03-14 23:59 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: 5284
Valid From: 2026-03-13 01:56 UTC
Now Valid Until: 2026-03-14 23:59 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: 2026-03-14 05:42 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2206
Valid From: 2026-03-13 11:52 UTC
Now Valid Until: 2026-03-14 21:00 UTC
Warning Condition: Persistance
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.
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2206
Valid From: 2026-03-13 11:52 UTC
Now Valid Until: 2026-03-14 21:00 UTC
Warning Condition: Persistance
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: 2026-03-14 05:28 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-03-14 05:24 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: 2026-03-14 05:24 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: 2026-03-14 05:28 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 643
Valid From: 2026-03-13 23:38 UTC
Now Valid Until: 2026-03-14 15:00 UTC
Warning Condition: Persistence
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.
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 643
Valid From: 2026-03-13 23:38 UTC
Now Valid Until: 2026-03-14 15:00 UTC
Warning Condition: Persistence
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: 2026-03-14 04:09 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-03-14 04:04 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: 2026-03-14 04:04 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.
Built 2026-03-17 02:15 from source
