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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
04:26------
04:25------
04:240.05449.2-3.23---
04:230.05447.9-3.05---
04:220.05453.0-2.76---
04:210.06457.1-2.70---
04:200.04452.9-2.63---
04:190.05453.6-2.69---
04:180.05453.4-2.53---
04:170.04451.5-2.40---
04:160.06453.8-2.39---
04:150.06454.2-2.36---
04:140.07452.7-2.46---
04:130.06456.7-2.36---
04:120.05452.2-2.10---
04:110.04453.2-2.37---
04:100.04453.3-2.95---
04:090.04454.7-2.57---
04:080.04453.3-2.22---
04:070.06449.3-3.060.1449.3-3.1
04:060.05448.3-3.530.1448.3-3.5
04:050.04451.8-1.040.0451.8-1.0
04:040.05453.0-1.790.0453.0-1.8
04:030.05449.4-2.040.0449.4-2.0
04:020.05447.7-1.920.0447.7-1.9
04:010.05450.4-1.980.1450.4-2.0
04:000.06450.7-1.970.1450.7-2.0
03:59---2.71---2.7
03:580.05446.4-1.830.1446.4-1.8
03:570.10457.2-1.400.1457.2-1.4
03:560.05445.9-1.480.0445.9-1.5
03:550.16447.9-1.860.2447.9-1.9
03:540.10454.32.360.1454.32.4
03:530.07451.02.960.1451.03.0
03:520.07453.01.640.1453.01.6
03:510.08453.00.140.1453.00.1
03:500.08455.60.070.1455.60.1
03:490.09460.0-0.670.1460.0-0.7
03:480.09462.0-0.910.1462.0-0.9
03:470.08458.2-1.230.1458.2-1.2
03:460.08457.7-1.290.1457.7-1.3
03:450.10455.6-1.170.1455.6-1.2
03:440.10453.5-0.660.1453.5-0.7
03:430.12456.9-0.290.1456.9-0.3
03:420.08456.2-0.470.1456.2-0.5
03:410.05459.10.960.1459.11.0
03:400.12458.70.000.1458.7-0.0
03:390.14457.0-0.100.1457.0-0.1
03:380.10462.5-0.390.1462.5-0.4
03:370.17473.5-0.670.2473.5-0.7
03:360.11468.2-1.280.1468.2-1.3
03:350.09457.5-0.760.1457.5-0.8
03:340.10456.60.730.1456.60.7
03:330.10463.30.600.1463.30.6
03:320.09468.0-0.320.1468.0-0.3
03:310.09469.90.730.1469.90.7
03:300.09464.80.410.1464.80.4
03:290.11453.21.440.1453.21.4
03:280.12455.40.860.1455.40.9
03:270.08441.11.220.1441.11.2
03:260.08447.31.620.1447.31.6
03:250.05454.52.050.1454.52.1
03:240.08457.22.010.1457.22.0
03:230.06448.92.190.1448.92.2
03:220.05457.02.120.1457.02.1
03:210.06462.52.740.1462.52.7
03:200.06458.63.240.1458.63.2
03:190.10463.43.680.1463.43.7
03:180.08458.53.560.1458.53.6
03:170.06458.93.620.1458.93.6
03:160.07463.63.410.1463.63.4
03:150.07462.93.250.1462.93.2
03:140.07464.23.030.1464.23.0
03:130.07463.73.380.1463.73.4
03:120.05461.43.350.0461.43.4
03:110.03458.13.220.0458.13.2
03:100.04465.33.280.0465.33.3
03:090.04466.53.450.0466.53.4
03:080.05461.33.760.1461.33.8
03:070.05460.42.760.0460.42.8
03:060.05461.93.630.0461.93.6
03:050.07458.33.480.1458.33.5
03:040.06452.03.390.1452.03.4
03:030.07457.42.320.1457.42.3
03:020.08467.33.100.1467.33.1
03:010.13473.73.600.1473.73.6
03:000.13473.74.270.1473.74.3
02:590.15477.24.290.1477.24.3
02:580.17476.93.690.2476.93.7
02:570.06461.13.630.1461.13.6
02:560.08464.23.980.1464.24.0
02:550.05460.43.290.1460.43.3
02:540.09472.63.580.1472.63.6
02:530.10468.73.850.1468.73.8
02:520.12466.02.910.1466.02.9
02:510.06482.62.070.1482.62.1
02:500.04471.50.840.0471.50.8
02:490.04476.30.620.0476.30.6
02:480.04477.51.020.0477.51.0
02:470.03478.60.950.0478.61.0
02:460.03481.60.600.0481.60.6
02:450.03473.40.510.0473.40.5
02:440.02467.20.000.0467.20.0
02:430.04471.90.820.0471.90.8
02:420.08475.1-0.890.1475.1-0.9
02:410.04478.4-0.500.0478.4-0.5
02:400.05476.10.710.0476.10.7
02:390.06467.40.680.1467.40.7
02:380.03472.11.440.0472.11.4
02:370.04466.41.600.0466.41.6
02:360.05453.91.400.1453.91.4
02:350.07448.91.600.1448.91.6
02:340.06451.31.370.1451.31.4
02:330.06448.93.050.1448.93.1
02:320.04467.84.090.0467.84.1
02:310.03475.91.510.0475.91.5
02:300.04482.80.720.0482.80.7
02:290.05484.61.170.0484.61.2
02:280.04486.61.500.0486.61.5
02:270.04486.21.740.0486.21.7
Built 2024-07-27 04:27 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-3.53.70.1
velocity [km/s]441.1473.5456.7
density [cm-3]0.00.20.1
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)367120
Maasi (MAS)378122
Kilpisjärvi (KIL)418135
Ivalo (IVA)32694
Muonio (MUO)30691
Sodankylä (SOD)27675
Pello (PEL)25561
Oulujärvi (OUJ)18437
Mekrijärvi (MEK)12317
Hankasalmi (HAN)-324
Nurmijärvi (NUR)10324
Tartu (TAR)7317
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2024-07-27 04:17 from source
Issue Time: 2024-07-26 15:59 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-07-26 15:59 UTC
Valid To: 2024-07-26 21:00 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: 2024-07-26 14:55 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-07-26 14:50 UTC
Synoptic Period: 1200-1500 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: 2024-07-26 14:34 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-07-26 14:34 UTC
Valid To: 2024-07-26 21:00 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: 2024-07-26 05:44 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-07-26 05:41 UTC
Synoptic Period: 0300-0600 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: 2024-07-26 04:09 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-07-26 04:00 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: 2024-07-26 04:02 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-07-26 04:02 UTC
Valid To: 2024-07-26 12:00 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: 2024-07-26 02:30 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4646
Valid From: 2024-07-25 20:15 UTC
Now Valid Until: 2024-07-26 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: 2024-07-26 01:21 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-07-26 01:20 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: 2024-07-25 20:15 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-07-25 20:15 UTC
Valid To: 2024-07-26 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.

Issue Time: 2024-07-25 16:29 UTC
ALERT: Type II Radio Emission
Begin Time: 2024-07-25 15:35 UTC
Estimated Velocity: 749 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: 2024-07-25 14:54 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-07-25 14:22 UTC
Deviation: 8 nT
Station: BOU

Issue Time: 2024-07-25 13:51 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-07-25 13:48 UTC
Valid To: 2024-07-25 14:25 UTC
IP Shock Passage Observed: 2024-07-25 13:15 UTC

Issue Time: 2024-07-25 12:49 UTC
ALERT: Type II Radio Emission
Begin Time: 2024-07-25 12:34 UTC
Estimated Velocity: 775 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: 2024-07-24 19:16 UTC
ALERT: Type II Radio Emission
Begin Time: 2024-07-24 18:16 UTC
Estimated Velocity: 687 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: 2024-07-24 18:19 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Jul 25: None (Below G1) Jul 26: None (Below G1) Jul 27: 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: 2024-07-24 17:46 UTC
ALERT: Type II Radio Emission
Begin Time: 2024-07-24 17:26 UTC
Estimated Velocity: 457 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: 2024-07-24 11:13 UTC
CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
Cancel Serial Number: 571
Original Issue Time: 2024-07-23 01:56 UTC
Comment: Conditions for this warning are no longer present

Issue Time: 2024-07-24 08:50 UTC
SUMMARY: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2024-07-23 02:05 UTC
Maximum Time: 2024-07-23 04:30 UTC
End Time: 2024-07-23 15:10 UTC
Maximum 100MeV Flux: 1 pfu

Issue Time: 2024-07-24 08:50 UTC
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024-07-23 03:00 UTC
Maximum Time: 2024-07-23 10:40 UTC
End Time: 2024-07-23 23:50 UTC
Maximum 10MeV Flux: 24 pfu
NOAA Scale: S1 - Minor

Issue Time: 2024-07-24 08:08 UTC
ALERT: Type IV Radio Emission
Begin Time: 2024-07-24 07:44 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2024-07-24 07:57 UTC
ALERT: Type II Radio Emission
Begin Time: 2024-07-24 07:44 UTC
Estimated Velocity: 407 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: 2024-07-24 02:03 UTC
CANCEL WARNING: Proton 100MeV Integral Flux above 1pfu expected
Cancel Serial Number: 108
Original Issue Time: 2024-07-23 01:40 UTC
Comment: Conditions have dropped below threshold.

Issue Time: 2024-07-23 19:30 UTC
EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
Extension to Serial Number: 107
Valid From: 2024-07-23 01:40 UTC
Now Valid Until: 2024-07-24 12:00 UTC
Warning Condition: persistence

Issue Time: 2024-07-23 19:29 UTC
EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 570
Valid From: 2024-07-23 01:55 UTC
Now Valid Until: 2024-07-24 23:59 UTC
Warning Condition: persistence
Predicted NOAA Scale: S1 - Minor

Built 2024-07-26 16:01 from source