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SeadedLast update:
Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
09:44------
09:43------
09:42------
09:414.01416.3----
09:403.97413.7----
09:394.60410.30.10---
09:384.51410.7-0.01---
09:374.19418.7-0.16---
09:367.26442.20.22---
09:357.03448.8-0.02---
09:346.82457.00.03---
09:334.61435.1-0.11---
09:324.50414.6-0.03---
09:314.74410.1-0.05---
09:304.52413.60.16---
09:294.40411.90.13---
09:284.26414.00.27---
09:274.29411.40.21---0.9
09:265.77417.80.010.3369.8-0.4
09:254.87410.4-0.060.3367.3-0.7
09:244.40406.9-0.010.3366.3-1.0
09:235.01415.3-0.320.6367.5-0.7
09:224.77412.0-0.660.7370.21.4
09:214.94418.8-0.870.6369.82.8
09:205.74424.5-0.970.7369.42.6
09:195.68425.5-0.990.7368.22.5
09:186.10428.5-0.260.6364.72.8
09:174.81411.7-0.080.8365.82.5
09:164.85410.0-0.280.7367.22.4
09:153.95410.42.460.9372.32.5
09:143.19402.53.051.3389.62.0
09:132.98404.42.65--2.1
09:124.21413.62.53--2.4
09:115.98428.82.650.9371.02.4
09:105.85431.02.571.3381.52.4
09:095.96426.62.221.4388.02.0
09:086.24426.52.020.8374.91.4
09:073.29405.12.280.7369.82.0
09:064.54409.32.180.7368.11.8
09:054.18411.22.620.4369.82.2
09:043.36400.72.490.4370.32.7
09:033.15393.72.570.7367.71.9
09:023.20400.52.310.6368.11.9
09:013.35400.81.890.8369.32.0
09:003.72403.21.970.8368.02.0
08:593.17398.32.060.7370.02.7
08:582.71396.52.000.8368.12.7
08:572.91390.31.941.0370.83.1
08:563.23403.61.920.6371.02.8
08:553.38407.21.730.7375.92.6
08:543.39403.91.520.7371.32.6
08:533.66409.61.680.7373.92.1
08:523.51400.31.540.6372.11.8
08:513.39404.11.530.6371.61.6
08:504.97416.51.760.7367.91.8
08:493.41405.31.720.8370.41.6
08:486.31426.81.731.0382.41.5
08:474.85413.81.660.9383.01.5
08:463.99398.61.760.6369.81.1
08:455.25415.31.740.7370.81.4
08:444.78411.01.480.8377.91.1
08:433.61405.91.320.6369.10.6
08:423.06398.31.470.7369.31.6
08:412.81398.71.281.2380.91.7
08:403.36401.61.280.9371.51.5
08:393.16399.71.260.9371.51.4
08:383.45399.31.330.8381.52.2
08:373.48398.91.331.0375.81.9
08:363.87404.51.410.5373.21.9
08:353.36402.01.671.3386.51.0
08:343.24403.51.611.6394.31.2
08:333.35396.61.291.0381.81.3
08:323.19398.21.090.4371.92.2
08:315.10417.01.450.3375.51.6
08:306.55425.61.360.3376.7-0.1
08:296.42427.12.060.4374.60.4
08:286.21424.42.610.4377.00.2
08:274.74426.91.540.4378.01.3
08:264.39420.60.140.4375.51.3
08:253.73418.4-0.680.3369.31.2
08:245.91428.7-0.820.5384.11.2
08:234.79423.5-0.840.9401.11.4
08:223.44410.71.150.5391.01.5
08:215.18422.61.561.4386.82.0
08:203.35408.51.380.8377.71.1
08:193.45407.11.520.4376.31.2
08:183.51405.00.480.3376.41.0
08:174.32407.50.370.7386.40.4
08:164.05407.01.260.6389.7-0.5
08:153.93406.71.410.2383.3-0.7
08:143.77406.81.430.3381.2-0.4
08:133.53407.61.360.4377.1-0.0
08:123.47400.80.210.8385.00.3
08:114.39400.10.450.6401.20.1
08:103.78399.01.170.3381.7-0.2
08:094.36413.00.050.9394.1-0.4
08:084.54416.6-0.510.8414.60.1
08:075.26422.1-0.432.9382.1-0.1
08:063.71419.6-0.2917.3347.0-0.4
08:054.09414.6-0.3825.7327.5-1.2
08:043.75413.2-0.740.5384.9-1.0
08:033.87416.5-1.070.6410.8-2.0
08:024.06419.6-1.040.6926.7-2.2
08:013.98414.4-0.700.4798.6-2.5
08:003.72413.2-0.790.2385.6-0.8
07:593.33412.8-0.980.5383.91.0
07:583.65410.6-1.230.6386.50.8
07:576.62425.3-2.060.8393.2-0.3
07:564.82417.0-2.320.9396.9-0.9
07:553.82412.3-2.210.9393.5-1.1
07:543.58409.5-2.230.6379.7-1.1
07:534.36412.6-2.470.9393.3-1.1
07:523.81411.7-2.690.8393.1-1.2
07:513.77411.4-2.910.9396.1-1.2
07:504.97420.8-0.8313.5376.9-1.4
07:495.25419.7-0.193.8393.0-1.6
07:485.17421.2-1.201.1402.2-1.6
07:475.25420.5-0.911.3402.1-1.1
07:465.10422.1-0.671.5396.1-2.2
07:455.54427.1-1.191.2397.6-2.1
Built 2025-04-15 09:45 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-1.03.01.5
velocity [km/s]390.3431.0409.6
density [cm-3]2.76.54.3
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)25442
Maasi (MAS)24438
Kilpisjärvi (KIL)22439
Ivalo (IVA)24432
Muonio (MUO)20434
Sodankylä (SOD)17434
Pello (PEL)18432
Oulujärvi (OUJ)17327
Mekrijärvi (MEK)15217
Hankasalmi (HAN)23320
Nurmijärvi (NUR)18321
Tartu (TAR)14214
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-04-15 09:32 from source
Issue Time: 2025-04-14 23:02 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-14 23:01 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: 2025-04-14 23:01 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-14 23:00 UTC
Valid To: 2025-04-15 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: 2025-04-14 08:56 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4922
Valid From: 2025-04-14 00:31 UTC
Now Valid Until: 2025-04-14 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: 2025-04-14 05:12 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3452
Begin Time: 2025-04-05 12:25 UTC
Yesterday Maximum 2MeV Flux: 1150 pfu

Issue Time: 2025-04-14 04:41 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-14 04:41 UTC
Valid To: 2025-04-14 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: 2025-04-14 04:39 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-14 04:29 UTC
Synoptic Period: 0300-0600 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: 2025-04-14 00:33 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-14 00:31 UTC
Valid To: 2025-04-14 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: 2025-04-13 21:20 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3451
Begin Time: 2025-04-05 12:25 UTC
Yesterday Maximum 2MeV Flux: 2657 pfu

Issue Time: 2025-04-13 20:07 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
Apr 14: None (Below G1) Apr 15: None (Below G1) Apr 16: 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: 2025-04-13 08:19 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4920
Valid From: 2025-04-12 16:36 UTC
Now Valid Until: 2025-04-13 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: 2025-04-12 22:45 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4919
Valid From: 2025-04-12 16:36 UTC
Now Valid Until: 2025-04-13 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: 2025-04-12 22:20 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-12 22:20 UTC
Valid To: 2025-04-13 06:00 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: 2025-04-12 17:46 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-12 17:46 UTC
Synoptic Period: 1500-1800 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: 2025-04-12 16:36 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-12 16:36 UTC
Valid To: 2025-04-13 03:00 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.

Built 2025-04-15 07:39 from source