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SeadedLast update:
Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
09:11------
09:10------
09:09------
09:08------
09:076.94479.110.53---
09:067.03479.010.58---
09:056.93478.710.61---
09:047.03478.510.65---
09:036.56476.210.67---
09:026.10469.210.61---
09:016.14472.910.48---
09:006.75476.110.50---
08:596.03468.510.45---
08:586.42471.110.34---
08:576.63473.110.61---
08:566.62471.610.66---
08:556.99478.610.38---
08:546.72477.710.36---
08:536.50472.710.28---
08:526.36470.110.29---
08:515.94467.510.30---
08:506.68472.610.39---
08:497.08478.710.28---
08:487.07478.610.32---
08:476.08466.010.25--11.5
08:465.68462.210.190.2461.611.6
08:456.84477.010.150.1461.811.5
08:446.42471.210.170.1461.511.4
08:435.76465.110.250.1462.711.4
08:426.46471.010.340.1463.111.4
08:417.06477.410.350.2462.411.3
08:406.75473.110.200.2462.211.3
08:396.12466.710.160.2461.411.3
08:386.26466.810.090.1460.611.3
08:377.06477.910.020.1461.311.3
08:366.89477.710.140.1462.211.2
08:356.35466.410.110.1461.211.1
08:346.92472.510.090.1462.311.2
08:336.38466.610.090.1462.911.2
08:326.38466.610.060.2464.311.1
08:317.14475.910.080.2465.211.1
08:306.85471.710.010.1461.311.2
08:297.05477.810.020.2463.311.3
08:286.83473.210.010.2463.811.2
08:276.23466.610.00--11.2
08:266.89473.09.87--11.2
08:256.29467.49.920.4475.111.2
08:246.76472.310.030.3470.211.2
08:236.74472.59.910.2462.311.3
08:226.73471.610.010.2464.011.3
08:216.92476.410.100.2465.8-
08:206.72472.010.040.3464.011.3
08:196.25466.39.980.2461.911.3
08:186.76472.510.020.4464.711.4
08:176.43467.59.980.1468.611.1
08:166.74472.09.930.1464.411.0
08:156.50467.69.960.1464.711.0
08:147.04478.69.790.3464.211.1
08:137.04477.49.840.2464.411.2
08:127.34479.19.860.2464.411.2
08:117.07478.89.780.2464.911.2
08:107.01479.49.710.2464.911.3
08:097.19479.69.660.2464.011.2
08:086.76473.69.740.1463.510.9
08:077.01478.69.680.1464.010.9
08:067.20478.99.630.1464.910.9
08:056.65473.69.610.2464.410.9
08:047.06478.99.580.1466.910.8
08:037.05479.09.540.2464.010.8
08:027.08479.49.470.1466.810.8
08:017.16479.89.490.2464.210.9
08:007.13479.69.540.1466.210.9
07:597.06479.69.610.1463.910.8
07:587.06480.19.700.1463.610.9
07:577.19479.99.590.1463.710.9
07:567.08480.79.580.1464.510.9
07:557.15480.09.590.1463.910.9
07:547.13480.09.54--10.8
07:537.19480.19.52--10.7
07:527.14480.19.550.1468.710.6
07:517.12479.79.490.1468.710.6
07:507.12480.29.520.1474.210.4
07:497.27482.19.310.1473.510.7
07:487.23482.19.200.1468.410.7
07:477.21484.99.250.0455.310.7
07:467.31483.69.480.1472.510.6
07:457.20483.69.480.1463.710.7
07:447.11485.49.380.1462.910.5
07:437.30484.79.340.1466.110.5
07:427.36483.69.140.1468.510.5
07:417.30482.59.180.1465.910.5
07:407.29485.19.150.1466.310.4
07:397.70484.49.100.1472.810.4
07:387.44486.09.030.1471.110.3
07:377.14484.19.020.0461.410.5
07:367.34482.99.030.0461.010.6
07:357.34482.38.970.1468.210.5
07:347.51483.08.710.1467.110.6
07:337.38483.28.660.1468.110.5
07:327.32483.88.570.1466.910.5
07:317.26485.58.760.1466.510.7
07:307.17483.38.870.1465.9-
07:297.29483.38.880.2773.710.7
07:287.17482.38.930.1497.910.4
07:277.07481.69.600.1467.410.5
07:267.14482.39.340.1464.910.5
07:257.41482.09.480.0464.510.4
07:247.42484.19.530.1466.010.3
07:237.26483.18.990.0467.310.1
07:227.16482.18.630.0467.310.2
07:217.22482.98.830.0466.810.1
07:207.21483.28.730.0466.7-
07:197.27483.28.450.1466.99.7
07:187.25484.18.620.1467.29.9
07:176.95487.58.480.1468.010.0
07:167.22486.58.350.1466.410.0
07:156.97488.78.370.0467.79.8
07:147.12487.38.280.1466.69.7
07:136.95487.68.270.0469.19.7
07:126.95487.28.310.1467.49.7
Built 2023-12-02 09:12 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]9.510.710.0
velocity [km/s]462.2480.1473.7
density [cm-3]5.77.36.7
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)24451
Maasi (MAS)21454
Kilpisjärvi (KIL)20464
Ivalo (IVA)19459
Muonio (MUO)15464
Sodankylä (SOD)17464
Pello (PEL)12458
Oulujärvi (OUJ)13570
Mekrijärvi (MEK)8527
Hankasalmi (HAN)7341
Nurmijärvi (NUR)6337
Tartu (TAR)4227
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2023-12-02 09:02 from source
Issue Time: 2023-12-02 05:51 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4519
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 12:00 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: 2023-12-02 05:50 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1844
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 12:00 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: 2023-12-02 01:24 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-02 01:22 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: 2023-12-01 23:38 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 23:35 UTC
Synoptic Period: 2100-2400 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: 2023-12-01 20:55 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 506
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-02 06:00 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: 2023-12-01 20:51 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 20:50 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: 2023-12-01 18:01 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 17:59 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4518
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-02 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 505
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 21:00 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 97
Valid From: 2023-12-01 11:16 UTC
Now Valid Until: 2023-12-01 21:00 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: 2023-12-01 14:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1842
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-02 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: 2023-12-01 13:49 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-12-01 13:49 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: 2023-12-01 12:22 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 12:18 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: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 504
Valid From: 2023-12-01 09:57 UTC
Now Valid Until: 2023-12-01 18:00 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: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1841
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 21:00 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: 2023-12-01 11:43 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4517
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 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: 2023-12-01 11:24 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2023-12-01 11:14 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 11:16 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2023-12-01 11:16 UTC
Valid To: 2023-12-01 15:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
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: 2023-12-01 10:55 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-12-01 10:51 UTC
Synoptic Period: 0900-1200 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: 2023-12-01 10:38 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-12-01 10:32 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: 2023-12-01 09:58 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023-12-01 09:57 UTC
Valid To: 2023-12-01 15:00 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: 2023-12-01 05:54 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1840
Valid From: 2023-12-01 00:35 UTC
Now Valid Until: 2023-12-01 15:00 UTC
Warning Condition: Onset
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: 2023-12-01 04:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4516
Valid From: 2023-12-01 00:28 UTC
Now Valid Until: 2023-12-01 21:00 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: 2023-12-01 02:06 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2023-12-01 02:05 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: 2023-12-01 00:36 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2023-12-01 00:35 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:32 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2023-12-01 00:21 UTC
Deviation: 36 nT
Station: FRD

Issue Time: 2023-12-01 00:29 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2023-12-01 00:28 UTC
Valid To: 2023-12-01 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: 2023-12-01 00:13 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2023-12-01 00:30 UTC
Valid To: 2023-12-01 01:30 UTC
IP Shock Passage Observed: 2023-12-01 00:00 UTC

Issue Time: 2023-11-29 17:56 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Nov 30: G1 (Minor) Dec 01: G3 (Strong) Dec 02: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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.

Built 2023-12-02 05:53 from source