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SeadedLast update:
Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
04:47------
04:46------
04:45------
04:44------
04:430.94652.8-1.62---
04:421.14656.1-1.44---
04:411.06653.4-1.59---
04:401.03647.9-1.84---
04:390.97656.9-1.78---
04:381.17657.0-2.08---
04:371.20656.9-2.07---
04:360.67656.2-2.77---
04:350.31633.6-3.41---
04:340.18635.6-4.02---
04:330.42651.5-4.09---
04:320.74666.1-3.48---
04:310.83665.0-2.55---
04:300.94648.3-1.74---
04:291.25651.4-1.00---
04:280.76643.9-1.600.8643.9-
04:271.02651.8-1.631.0651.8-1.6
04:260.90650.4-2.030.9650.4-2.0
04:251.54655.1-2.071.5655.1-2.1
04:241.21655.4-0.311.2655.4-0.3
04:231.21655.4-1.780.9652.2-1.8
04:220.64654.7-2.210.6654.7-2.2
04:210.51649.5-2.050.5649.5-2.1
04:201.00649.7-2.711.0649.7-2.7
04:191.28659.1-0.871.3659.1-0.9
04:181.27658.4-1.381.3658.4-1.4
04:171.05652.8-1.511.0652.8-1.5
04:160.93650.4-1.620.9650.4-1.6
04:151.00647.0-1.871.0647.0-1.9
04:141.01643.4-1.781.0643.4-1.8
04:131.03642.5-1.771.0642.5-1.8
04:121.00638.3-1.700.9640.2-1.7
04:110.57648.1-2.180.6648.1-2.2
04:100.73643.2-2.940.7643.2-2.9
04:090.64640.5-2.410.6640.5-2.4
04:080.56646.8-2.090.6646.8-2.1
04:070.55645.6-2.440.6645.6-2.4
04:060.80645.1-2.120.8645.1-2.1
04:051.08644.6-2.021.1644.6-2.0
04:041.14644.5-1.841.1644.5-1.8
04:030.67639.4-1.800.7639.4-1.8
04:020.87642.7-1.900.9642.7-1.9
04:010.93642.5-0.680.9642.5-0.7
04:000.85640.1-0.730.8640.1-0.7
03:59---1.40---1.4
03:581.09643.2-0.411.1643.2-0.4
03:571.09641.3-0.041.1641.3-0.0
03:561.39650.5-0.021.4650.5-0.0
03:551.16654.80.051.2654.80.1
03:541.41653.50.071.4653.50.1
03:532.16663.51.982.2663.52.0
03:522.11664.62.732.1664.62.7
03:512.14670.61.522.1670.61.5
03:501.85665.81.331.9665.81.3
03:491.50658.80.991.5658.81.0
03:482.10664.21.322.1664.21.3
03:472.53667.42.842.5667.42.8
03:462.35671.03.042.3671.03.0
03:452.30676.11.762.3676.11.8
03:442.38672.32.062.4672.32.1
03:432.22661.12.102.2661.12.1
03:422.09658.11.722.1658.11.7
03:411.71662.21.531.7662.21.5
03:400.28659.6-1.050.3659.6-1.0
03:390.12659.7-2.750.1659.7-2.7
03:380.22618.8-3.660.3621.0-3.7
03:370.90663.2-3.420.9663.2-3.4
03:360.56672.1-2.470.6672.1-2.5
03:351.01696.0-2.591.0696.0-2.6
03:340.66676.7-2.350.7676.7-2.4
03:331.38671.1-3.401.4671.1-3.4
03:321.12658.1-0.981.1658.1-1.0
03:310.93653.1-1.070.9653.1-1.1
03:302.23659.80.802.2659.80.8
03:292.00653.62.462.0653.62.5
03:281.84648.81.621.8648.81.6
03:271.90649.91.902.0652.41.9
03:262.09658.03.302.1658.03.3
03:252.03658.73.812.0658.73.8
03:242.17651.32.582.2651.32.6
03:232.27658.22.982.3658.23.0
03:222.55685.42.602.6685.42.6
03:211.90676.21.751.9676.21.8
03:201.75658.01.971.7658.02.0
03:191.85670.10.551.9670.10.6
03:181.84661.6-0.571.8661.6-0.6
03:170.87669.9-1.180.9669.9-1.2
03:160.71666.5-2.310.7666.5-2.3
03:150.78665.4-1.930.8665.4-1.9
03:141.22662.8-1.311.2662.8-1.3
03:131.85660.81.261.9660.81.3
03:121.93656.82.491.9656.82.5
03:111.73648.92.051.7648.92.0
03:101.77645.21.731.8645.21.7
03:091.56645.30.761.6645.30.8
03:081.31645.0-0.071.3645.0-0.1
03:071.31648.81.131.3648.81.1
03:061.66647.81.861.7647.81.9
03:051.71652.11.281.7652.11.3
03:041.10642.20.171.1642.20.2
03:031.09642.1-0.121.4650.6-0.1
03:021.32649.90.341.3649.90.3
03:010.97647.4-0.571.0647.4-0.6
03:000.81646.0-1.520.8646.0-1.5
02:590.98655.6-1.381.0655.6-1.4
02:581.09660.9-1.431.1660.9-1.4
02:570.73658.0-1.660.7658.0-1.7
02:560.77661.6-1.890.8661.6-1.9
02:550.88659.3-1.670.9659.3-1.7
02:540.89652.0-1.940.9652.0-1.9
02:530.75659.1-1.930.8656.5-1.9
02:520.91651.0-1.470.9651.0-1.5
02:510.31660.0-2.160.3660.0-2.2
02:500.71649.4-1.640.7649.4-1.6
02:490.75652.3-1.780.8652.3-1.8
02:480.94645.1-2.320.9645.1-2.3
Built 2026-04-03 04:48 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-4.13.0-1.2
velocity [km/s]633.6676.1652.0
density [cm-3]0.22.51.1
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)21852364
Maasi (MAS)22758364
Kilpisjärvi (KIL)20756359
Ivalo (IVA)20928326
Muonio (MUO)14929329
Sodankylä (SOD)15925244
Pello (PEL)13424227
Oulujärvi (OUJ)8316121
Mekrijärvi (MEK)491046
Hankasalmi (HAN)481169
Nurmijärvi (NUR)421262
Tartu (TAR)29944
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2026-04-03 04:47 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2026-04-02 20:52 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 20:52 UTC
Synoptic Period: 1800-2100 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: 2026-04-02 17:43 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Apr 02: G2 (Moderate) Apr 03: G2 (Moderate) Apr 04: G2 (Moderate)
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: 2026-04-02 17:11 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026-04-02 17:05 UTC
Synoptic Period: 1500-1800 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: 2026-04-02 17:11 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5308
Valid From: 2026-04-02 00:47 UTC
Now Valid Until: 2026-04-03 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: 2026-04-02 17:11 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2219
Valid From: 2026-04-02 02:30 UTC
Now Valid Until: 2026-04-03 15:00 UTC
Warning Condition: Persistence
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: 2026-04-02 17:11 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 650
Valid From: 2026-04-02 07:53 UTC
Now Valid Until: 2026-04-03 09:00 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: 2026-04-02 16:29 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 16:27 UTC
Synoptic Period: 1500-1800 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: 2026-04-02 14:32 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 14:30 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: 2026-04-02 10:22 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 10:21 UTC
Synoptic Period: 0900-1200 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: 2026-04-02 07:53 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2218
Valid From: 2026-04-02 02:30 UTC
Now Valid Until: 2026-04-02 18:00 UTC
Warning Condition: Persistence
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: 2026-04-02 07:53 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2026-04-02 07:53 UTC
Valid To: 2026-04-02 18:00 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: 2026-04-02 07:51 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5307
Valid From: 2026-04-02 00:47 UTC
Now Valid Until: 2026-04-02 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: 2026-04-02 07:50 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 07:50 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: 2026-04-02 03:01 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-04-02 03:00 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: 2026-04-02 02:30 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-04-02 02:30 UTC
Valid To: 2026-04-02 09:00 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: 2026-04-02 02:20 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-04-02 02:20 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: 2026-04-02 00:47 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-04-02 00:47 UTC
Valid To: 2026-04-02 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: 2026-04-01 23:35 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-01 23:03 UTC
Estimated Velocity: 58 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: 2026-04-01 13:30 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3662
Begin Time: 2026-03-22 14:30 UTC
Yesterday Maximum 2MeV Flux: 1413 pfu

Issue Time: 2026-04-01 12:33 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026-04-01 12:06 UTC
Deviation: 19 nT
Station: HAD

Issue Time: 2026-04-01 12:10 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-04-01 12:10 UTC
Valid To: 2026-04-01 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: 2026-04-01 11:39 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026-04-01 12:06 UTC
Valid To: 2026-04-01 12:36 UTC
IP Shock Passage Observed: 2026-04-01 11:30 UTC

Issue Time: 2026-03-31 22:13 UTC
WATCH: Geomagnetic Storm Category G2 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 - 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: 2026-03-31 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.

Built 2026-04-02 23:07 from source