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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
16:24------
16:23------
16:22------
16:212.19403.30.27---
16:202.02405.70.28---
16:192.22405.30.31---
16:182.27405.20.18---
16:172.11406.00.40---
16:162.19406.10.53---
16:152.41405.80.40---
16:14------
16:131.58412.51.39---
16:121.80407.31.45---
16:111.75408.50.99---
16:101.27412.92.00---
16:091.30420.81.98---
16:081.75407.81.78---
16:071.86406.71.19--1.2
16:061.69408.11.041.7408.11.0
16:051.83407.01.091.8407.01.1
16:041.89405.21.051.9405.21.1
16:031.80407.80.901.8407.80.9
16:021.74409.4-1.7409.4-
16:01------
16:00--1.02--1.0
15:59------
15:58--0.24--0.2
15:572.30397.0-0.272.3397.0-0.3
15:562.12396.1-0.362.1396.1-0.4
15:552.46396.9-0.202.5396.9-0.2
15:542.49396.4-0.352.5396.4-0.4
15:532.46397.3-0.262.5397.3-0.3
15:522.18399.2-0.142.2399.2-0.1
15:512.44397.9-0.072.4397.9-0.1
15:502.31399.10.132.3399.10.1
15:492.20399.90.182.2399.90.2
15:481.92401.60.441.9401.60.4
15:471.87403.00.751.9403.00.7
15:461.64408.80.991.6408.81.0
15:451.46412.71.491.5412.71.5
15:44--0.69--0.7
15:431.57408.21.601.6408.21.6
15:421.74405.11.351.7405.11.4
15:411.83411.41.071.8411.41.1
15:401.15428.32.301.2428.32.3
15:391.21426.13.211.2426.13.2
15:381.94409.42.461.9409.42.5
15:372.36403.41.472.4403.41.5
15:361.58412.70.901.6412.70.9
15:351.44416.51.311.4416.51.3
15:342.59403.01.342.6403.01.3
15:332.89399.7-0.692.9399.7-0.7
15:322.68399.3-1.662.7399.3-1.7
15:312.49400.9-0.742.5400.9-0.7
15:302.45401.9-0.502.4401.9-0.5
15:29------
15:282.16404.5-2.2404.5-
15:272.13408.10.082.1408.10.1
15:26--0.40--0.4
15:25--0.16--0.2
15:241.75410.50.721.8410.50.7
15:232.12406.90.882.1406.90.9
15:222.14406.1-0.132.1406.1-0.1
15:212.35404.2-0.282.4404.2-0.3
15:202.22404.4-0.662.2404.4-0.7
15:191.81414.3-0.531.8414.3-0.5
15:181.10423.70.771.1423.70.8
15:170.98425.41.861.0425.41.9
15:160.90427.62.070.9427.62.1
15:151.80409.51.391.8409.51.4
15:142.46399.1-1.072.5399.1-1.1
15:132.58398.9-0.952.3400.3-1.0
15:122.33401.0-0.652.3401.0-0.7
15:112.48400.3-0.922.5400.3-0.9
15:102.28400.4-1.822.3400.4-1.8
15:092.62400.4-2.282.6400.4-2.3
15:082.63399.5-2.022.6399.5-2.0
15:072.59398.3-1.662.6398.3-1.7
15:062.42399.7-1.422.4399.7-1.4
15:052.55401.2-0.602.6401.2-0.6
15:042.11402.3-0.402.1402.3-0.4
15:032.47399.7-0.182.5399.7-0.2
15:022.17402.5-0.382.2402.5-0.4
15:011.61412.80.571.6412.80.6
15:001.76411.00.421.8411.00.4
14:591.87409.20.651.9409.2-
14:581.90409.6-0.221.9409.6-0.2
14:572.21405.7-0.852.2405.7-0.9
14:562.51404.1-1.322.5404.1-1.3
14:552.78404.0-1.682.8404.0-1.7
14:542.84404.8-1.912.8404.8-1.9
14:53---1.74---1.7
14:52---1.53---1.5
14:512.78403.0-1.392.8403.0-1.4
14:502.75402.4-1.522.7402.4-1.5
14:492.72402.7-1.282.7402.7-1.3
14:482.62403.5-1.342.6403.5-1.3
14:472.57400.8-1.562.6400.8-1.6
14:462.72401.5-1.592.7401.5-1.6
14:452.77401.6-1.632.8401.6-1.6
14:442.77401.6-1.602.8401.6-1.6
14:432.46400.3-2.5400.3-
14:422.44399.9-1.322.4399.9-1.3
14:412.77401.1-1.762.8401.1-1.8
14:402.88402.9-1.872.9402.9-1.9
14:392.64404.1-1.672.6404.1-1.7
14:382.45404.2-1.472.5404.2-1.5
14:372.50403.3-1.372.5403.3-1.4
14:362.69403.2-1.322.7403.2-1.3
14:352.61402.9-1.272.6402.9-1.3
14:342.41403.0-1.022.4403.0-1.0
14:332.54401.8-0.862.5401.8-0.9
14:322.78401.0-1.582.8401.0-1.6
14:312.77402.4-1.952.8402.4-1.9
14:302.90402.3-2.072.9402.3-2.1
14:292.92402.3-2.082.9402.3-2.1
14:282.44400.3-2.4400.3-
14:272.19407.2-1.222.2407.2-1.2
14:262.07407.80.072.1407.80.1
14:252.52406.30.032.5406.30.0
Built 2026-03-31 16:25 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-1.73.20.7
velocity [km/s]396.1428.3407.6
density [cm-3]0.92.91.9
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)105482
Maasi (MAS)102577
Kilpisjärvi (KIL)100580
Ivalo (IVA)95465
Muonio (MUO)83467
Sodankylä (SOD)63462
Pello (PEL)59457
Oulujärvi (OUJ)27340
Mekrijärvi (MEK)17221
Hankasalmi (HAN)19228
Nurmijärvi (NUR)14328
Tartu (TAR)8221
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2026-03-31 16:17 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2026-03-31 14:54 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3661
Begin Time: 2026-03-22 14:30 UTC
Yesterday Maximum 2MeV Flux: 1358 pfu

Issue Time: 2026-03-31 12:31 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 31: G2 (Moderate) Apr 01: G1 (Minor) Apr 02: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2026-03-31 12:28 UTC
CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 1104
Original Issue Time: 2026-03-31 12:27 UTC
Comment: cancelled due to incorrect date.
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: 2026-03-31 12:27 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Apr 01: G2 (Moderate) Apr 02: G1 (Minor) Apr 03: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2026-03-30 08:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5304
Valid From: 2026-03-29 15:46 UTC
Now Valid Until: 2026-03-30 23:59 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: 2026-03-30 07:42 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3660
Begin Time: 2026-03-22 14:30 UTC
Yesterday Maximum 2MeV Flux: 3755 pfu

Issue Time: 2026-03-30 06:27 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Mar 30: G1 (Minor) Mar 31: G2 (Moderate) Apr 01: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: 2026-03-30 05:43 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-03-30 02:54 UTC
Maximum Time: 2026-03-30 03:04 UTC
End Time: 2026-03-30 03:42 UTC
Duration: 48 minutes
Peak Flux: 1800 sfu
Latest Penticton Noon Flux: 158 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: 2026-03-30 05:18 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026-03-30 02:47 UTC
Maximum Time: 2026-03-30 03:19 UTC
End Time: 2026-03-30 03:44 UTC
X-ray Class: X1,4
Location: S27E42
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2026-03-30 05:16 UTC
CANCEL SUMMARY: X-ray Event exceeded X1
Cancel Serial Number: 212
Original Issue Time: 2026-03-30 03:53 UTC
Comment: The flare maximum was recorded as an X1.4.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2026-03-30 03:53 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026-03-30 02:47 UTC
Maximum Time: 2026-03-30 03:19 UTC
End Time: 2026-03-30 03:44 UTC
X-ray Class: X1.5
Location: S27E42
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2026-03-30 03:22 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-03-30 03:00 UTC
Estimated Velocity: 1872 km/s
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: 2026-03-30 03:07 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-03-30 03:06 UTC
NOAA Scale: R2 - Moderate

Issue Time: 2026-03-29 15:48 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-29 15:46 UTC
Valid To: 2026-03-30 09:00 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: 2026-03-29 12:47 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3659
Begin Time: 2026-03-22 14:30 UTC
Yesterday Maximum 2MeV Flux: 1596 pfu

Issue Time: 2026-03-29 03:00 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-03-29 02:59 UTC
Synoptic Period: 0000-0300 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: 2026-03-29 02:07 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-03-29 02:07 UTC
Valid To: 2026-03-29 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: 2026-03-28 16:32 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Mar 29: None (Below G1) Mar 30: G1 (Minor) Mar 31: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: Isolated periods of G1 (Minor) geomagnetic storming are likely on 30 Mar due to 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.

Built 2026-03-31 14:57 from source