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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
19:58------
19:57------
19:560.89579.8----
19:550.69582.1-1.55---
19:540.52571.3-1.68---
19:530.56568.9-1.78---
19:520.70570.3-0.72---
19:511.00575.10.51---
19:501.21592.91.49---
19:491.27607.60.92---
19:481.27603.20.831.3603.20.8
19:471.12596.10.931.1596.10.9
19:461.01601.91.081.0601.91.1
19:451.31614.30.671.3614.30.7
19:441.43615.41.021.4615.41.0
19:431.20623.60.341.2623.60.3
19:421.28622.81.531.3622.81.5
19:411.47610.41.581.5610.41.6
19:401.24592.72.221.2592.72.2
19:391.20587.22.401.2587.22.4
19:381.10605.02.631.1605.02.6
19:371.22595.51.951.2595.51.9
19:361.34588.82.971.3588.83.0
19:351.38588.72.511.4588.72.5
19:34--2.23--2.2
19:33--2.79--2.8
19:321.32596.02.371.3596.02.4
19:311.28593.73.031.3593.73.0
19:301.22589.22.141.2589.22.1
19:291.06590.42.211.1590.42.2
19:281.25586.22.511.2586.22.5
19:271.28590.83.181.3590.83.2
19:261.57599.43.431.6599.43.4
19:251.57--1.6--
19:241.01579.51.771.0579.51.8
19:231.19587.91.791.2587.91.8
19:221.21579.31.801.2579.31.8
19:211.15594.02.351.2594.02.4
19:201.09581.1-0.211.1581.1-0.2
19:191.24589.11.111.2589.11.1
19:181.25587.31.611.2587.31.6
19:171.23580.42.401.2580.42.4
19:161.44598.2-1.4598.2-
19:151.52603.02.351.5603.02.3
19:141.37594.73.641.4594.73.6
19:131.37590.83.391.4590.83.4
19:121.35595.13.331.3595.13.3
19:111.18573.92.361.2573.92.4
19:100.96575.01.831.0575.01.8
19:091.01582.91.461.0582.91.5
19:080.90600.20.920.9600.20.9
19:071.15586.8-0.471.1586.8-0.5
19:060.83568.90.300.8568.90.3
19:050.86559.91.110.9559.91.1
19:041.27581.51.801.3581.51.8
19:03--1.92--1.9
19:02--1.69--1.7
19:011.19586.01.781.2586.01.8
19:001.25590.1-1.431.3590.1-1.4
18:591.31592.80.011.3592.8-
18:581.23584.01.031.2584.01.0
18:571.33590.51.321.3590.51.3
18:561.35597.90.861.4597.90.9
18:551.23582.62.061.2582.62.1
18:541.48592.92.051.5592.92.0
18:531.38588.62.401.4588.62.4
18:521.58600.92.051.6600.92.0
18:511.06586.11.221.1586.11.2
18:501.37589.91.151.4589.91.2
18:491.45606.02.051.5606.02.1
18:481.16570.93.031.2570.93.0
18:471.35577.42.691.3577.42.7
18:461.32588.81.931.3588.81.9
18:451.40591.42.031.4591.42.0
18:441.57597.52.231.6597.52.2
18:431.05575.12.631.1575.12.6
18:421.21576.61.911.2576.61.9
18:411.36581.02.731.4581.02.7
18:401.36576.62.881.4576.62.9
18:391.36579.82.821.4579.82.8
18:381.18577.42.271.2577.42.3
18:371.23578.81.971.2578.82.0
18:361.29578.72.481.3578.72.5
18:351.22581.22.751.2581.22.8
18:341.35586.42.831.3586.42.8
18:331.26583.12.621.3583.12.6
18:321.27581.12.381.3581.12.4
18:311.31580.72.371.3580.72.4
18:30--1.84--1.8
18:29--2.34--2.3
18:281.60593.53.411.6593.53.4
18:271.98591.32.382.0591.32.4
18:262.52585.22.672.5585.22.7
18:251.28581.92.121.3581.92.1
18:241.09586.21.471.1586.21.5
18:231.36603.31.351.4603.31.3
18:221.18610.7-0.921.2610.7-0.9
18:210.94557.4-0.880.9557.4-0.9
18:200.63564.3-0.730.6564.3-0.7
18:190.52567.5-0.880.5567.5-0.9
18:180.92597.1-1.990.9597.1-2.0
18:170.92594.0-2.270.9594.0-2.3
18:160.80590.6-2.330.8590.6-2.3
18:150.52577.2-2.490.5577.2-2.5
18:140.45584.4-2.990.4584.4-3.0
18:130.65595.1-2.790.6595.1-2.8
18:120.78588.10.420.8588.10.4
18:111.03598.10.251.0598.10.3
18:101.42606.00.001.4606.00.0
18:091.16593.1-0.831.2593.1-0.8
18:081.62599.9-0.251.6599.9-0.2
18:071.46610.40.061.5610.40.1
18:061.11581.00.691.1581.00.7
18:051.13592.6-0.251.1592.6-0.2
18:041.13601.4-1.061.1601.4-1.1
18:031.07599.2-1.331.1599.2-1.3
18:020.99597.3-1.791.0597.3-1.8
18:011.10595.8-1.861.1595.8-1.9
18:001.25596.80.561.2596.80.6
17:591.26594.51.711.3594.51.7
Built 2025-08-12 19:59 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-1.43.61.9
velocity [km/s]559.9622.8588.6
density [cm-3]0.81.61.3
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)8214360
Maasi (MAS)7013350
Kilpisjärvi (KIL)-13352
Ivalo (IVA)-12325
Muonio (MUO)-10290
Sodankylä (SOD)209269
Pello (PEL)238235
Oulujärvi (OUJ)226151
Mekrijärvi (MEK)14462
Hankasalmi (HAN)15458
Nurmijärvi (NUR)16556
Tartu (TAR)10444
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-08-12 19:47 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2025-08-12 14:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5058
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-13 00:00 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: 2025-08-12 11:13 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5057
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-12 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: 2025-08-12 08:03 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3511
Begin Time: 2025-08-10 11:45 UTC
Yesterday Maximum 2MeV Flux: 6326 pfu

Issue Time: 2025-08-12 01:44 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5056
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-12 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: 2025-08-11 11:11 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5055
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-12 03:00 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: 2025-08-11 05:39 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3510
Begin Time: 2025-08-10 11:45 UTC
Yesterday Maximum 2MeV Flux: 3695 pfu

Issue Time: 2025-08-10 15:03 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5054
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-11 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: 2025-08-10 12:06 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2025-08-10 11:45 UTC
Station: GOES19


Issue Time: 2025-08-10 07:48 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-08-10 07:47 UTC
Valid To: 2025-08-10 15:00 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: 2025-08-10 02:19 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5053
Valid From: 2025-08-08 14:15 UTC
Now Valid Until: 2025-08-10 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: 2025-08-09 16:52 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-08-09 16:48 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: 2025-08-09 16:28 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-08-09 16:28 UTC
Valid To: 2025-08-09 23:59 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: 2025-08-09 16:01 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-08-09 15:56 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.

Built 2025-08-12 14:08 from source