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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
19:11------
19:10------
19:09------
19:082.08431.7-0.0419.5-0.0
19:072.15432.8-0.0434.00.1
19:062.70434.6-0.160.0416.10.2
19:052.48437.80.260.0436.00.1
19:042.08448.7-0.240.0419.7-0.0
19:031.88442.3-0.490.0423.30.1
19:021.85441.8-0.710.0416.0-0.0
19:011.84438.2-0.660.0427.6-0.2
19:001.76438.6-0.630.0422.4-0.2
18:591.77436.5-0.730.0423.80.0
18:581.73437.8-0.900.0423.3-0.0
18:571.72440.0-0.580.0426.5-0.0
18:561.77439.0-0.520.0430.20.1
18:551.76438.9-0.580.0431.20.2
18:541.81436.0-0.440.0430.20.2
18:531.76436.7-0.490.0421.00.3
18:521.83435.9-0.410.0411.00.4
18:511.83438.0-0.360.0414.10.5
18:501.71441.0-0.360.0407.40.5
18:491.76441.1-0.390.0407.70.6
18:481.84440.1-0.370.0427.40.5
18:471.94437.2-0.180.0417.40.4
18:461.88438.4-0.360.0418.40.2
18:451.84438.0-0.510.0424.30.4
18:441.90437.9-0.640.0409.90.4
18:431.86436.8-0.470.0416.70.5
18:421.90436.1-0.330.0429.40.5
18:411.96435.9-0.380.0437.60.5
18:401.96436.8-0.360.0443.40.5
18:391.94437.0-0.330.0436.40.5
18:381.90436.9-0.300.0423.70.4
18:371.97438.70.110.0424.00.4
18:361.95438.80.100.0429.30.4
18:351.95437.90.030.0450.90.6
18:342.02438.8-0.220.0395.80.5
18:331.97438.4-0.210.0418.90.5
18:321.96437.90.150.0422.30.4
18:311.92439.30.080.0426.20.6
18:301.87440.20.100.0402.83.0
18:291.87440.80.180.0416.72.5
18:281.83442.70.120.0420.31.9
18:272.01443.4-0.020.0436.31.1
18:262.00439.10.270.0450.90.9
18:251.98439.90.270.0438.40.6
18:242.06437.30.060.0423.91.2
18:232.02438.4-0.010.0431.41.4
18:222.03440.4-0.080.0439.51.3
18:211.99443.90.060.0434.51.4
18:201.98442.00.150.0436.41.4
18:191.91441.90.040.0429.91.3
18:182.00444.2-0.220.0410.81.3
18:171.96441.4-0.320.0-1.3
18:161.97442.40.110.0416.11.3
18:152.22440.31.850.0429.01.1
18:142.13437.91.910.0424.51.1
18:132.43441.62.260.0430.00.3
18:122.19439.51.160.0405.40.7
18:112.06440.51.140.0415.91.6
18:102.05443.01.050.0422.61.8
18:091.96443.41.060.0426.80.5
18:082.03442.11.030.0419.9-1.3
18:072.14436.20.850.0410.4-1.6
18:062.26435.50.600.0419.6-1.5
18:052.26436.10.510.0424.0-2.0
18:042.15436.60.180.0411.4-1.3
18:032.27437.00.250.0415.4-0.2
18:022.29437.50.510.0430.4-0.6
18:012.23436.30.440.0430.1-0.6
18:002.16443.90.570.0415.5-0.4
17:592.30451.40.06---
17:582.10433.50.190.0446.0-0.3
17:572.19437.10.600.0424.8-0.9
17:562.10438.20.780.0416.8-1.5
17:552.24437.91.070.0421.2-1.7
17:542.53428.51.150.0418.6-1.4
17:532.50437.52.700.0413.5-1.2
17:522.45436.41.570.0410.8-1.3
17:512.29436.61.160.0412.0-1.3
17:502.35432.20.260.0421.6-1.4
17:493.02426.1-2.320.0432.3-0.7
17:483.07426.0-2.310.0427.0-0.5
17:473.04424.9-1.530.0416.8-0.5
17:463.05424.9-1.400.0403.6-0.6
17:453.02421.6-1.41---0.4
17:443.17424.2-1.38--0.7
17:433.08424.7-1.310.0427.70.8
17:423.09424.8-1.400.0420.30.7
17:413.19425.7-1.640.0415.90.9
17:403.05423.2-1.310.0413.51.1
17:393.19425.4-1.580.0437.31.3
17:383.08423.7-1.130.0433.51.3
17:372.93422.2-1.730.0421.31.2
17:363.20425.7-1.760.0422.41.4
17:353.22427.8-1.970.0423.51.4
17:343.03424.4-2.370.0425.91.3
17:333.09427.1-2.170.0431.61.3
17:323.11428.5-1.570.0418.31.4
17:313.04428.3-1.410.0417.91.6
17:302.99423.8-1.140.0412.31.5
17:293.10425.3-1.030.0415.31.5
17:283.11424.5-1.000.0423.21.4
17:272.74428.4-0.050.0419.81.4
17:262.52429.80.670.0412.41.5
17:252.40430.70.490.0407.61.5
17:242.34429.60.110.0407.61.4
17:232.21427.50.840.0416.41.5
17:221.88416.61.050.0418.01.4
17:212.00420.00.860.0400.81.4
17:202.25423.30.780.0395.51.4
17:192.25427.10.880.0413.01.5
17:181.76419.20.920.0423.41.5
17:172.25428.10.950.0420.21.4
17:162.27427.80.870.0422.60.9
17:152.32427.20.870.0411.41.3
17:142.33427.80.940.0411.01.9
17:132.39428.90.860.0409.11.7
17:122.39429.70.95--1.7
Built 2021-05-13 19:12 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-0.62.30.2
velocity [km/s]433.5451.4439.2
density [cm-3]1.72.42.0
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)194187
Maasi (MAS)154171
Kilpisjärvi (KIL)144157
Ivalo (IVA)114104
Muonio (MUO)143128
Sodankylä (SOD)154102
Pello (PEL)15489
Oulujärvi (OUJ)14336
Mekrijärvi (MEK)-221
Hankasalmi (HAN)10226
Nurmijärvi (NUR)11326
Tartu (TAR)9219
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2021-05-13 19:02 from source
Issue Time: 2021-05-13 05:31 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3898
Valid From: 2021-05-12 06:00 UTC
Now Valid Until: 2021-05-13 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: 2021-05-12 17:59 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3897
Valid From: 2021-05-12 06:00 UTC
Now Valid Until: 2021-05-13 06:00 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: 2021-05-12 17:59 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1600
Valid From: 2021-05-12 07:00 UTC
Now Valid Until: 2021-05-13 06:00 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: 2021-05-12 17:59 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 443
Valid From: 2021-05-12 12:25 UTC
Now Valid Until: 2021-05-12 23:59 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: 2021-05-12 17:59 UTC
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 77
Valid From: 2021-05-12 12:50 UTC
Now Valid Until: 2021-05-12 23:59 UTC
Warning Condition: Persistence
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: 2021-05-12 17:59 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2021-05-12 17:59 UTC
Synoptic Period: 1500-1800 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: 2021-05-12 15:42 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2021-05-12 15:42 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: 2021-05-12 15:29 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021-05-12 15:28 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: 2021-05-12 12:59 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2021-05-12 12:58 UTC
Synoptic Period: 1200-1500 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: 2021-05-12 12:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1599
Valid From: 2021-05-12 07:00 UTC
Now Valid Until: 2021-05-12 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: 2021-05-12 12:49 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2021-05-12 12:50 UTC
Valid To: 2021-05-12 18:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater - Strong to Extreme
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: 2021-05-12 12:32 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2021-05-12 12:32 UTC
Synoptic Period: 1200-1500 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: 2021-05-12 12:30 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021-05-12 12:30 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: 2021-05-12 12:28 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2021-05-12 12:25 UTC
Valid To: 2021-05-12 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: 2021-05-12 11:23 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3896
Valid From: 2021-05-12 06:00 UTC
Now Valid Until: 2021-05-12 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: 2021-05-12 07:11 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021-05-12 07:11 UTC
Synoptic Period: 0600-0900 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: 2021-05-12 06:54 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2021-05-12 06:43 UTC
Deviation: 51 nT
Station: FRD

Issue Time: 2021-05-12 06:46 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021-05-12 07:00 UTC
Valid To: 2021-05-12 13:00 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: 2021-05-12 05:58 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021-05-12 06:00 UTC
Valid To: 2021-05-12 12:30 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: 2021-05-12 05:56 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2021-05-12 05:54 UTC
Valid To: 2021-05-12 07:00 UTC
IP Shock Passage Observed: 2021-05-12 05:47 UTC

Built 2021-05-13 05:34 from source