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SeadedLast update:
Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
21:43------
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21:28------
21:27------2.0
21:26---1.8462.4-1.7
21:25---1.7480.5-1.3
21:24---1.5487.4-0.5
21:23---1.0487.1-0.1
21:22---0.6461.00.5
21:21---1.5489.10.6
21:20---1.2505.81.1
21:19---5.0503.8-0.2
21:18---0.5462.41.2
21:17---1.6481.32.1
21:16---1.9480.62.6
21:15---1.5475.61.3
21:14-----1.3
21:13---1.0491.91.1
21:12---1.1486.31.0
21:11---0.8477.41.1
21:10---0.7476.80.8
21:09---1.1485.70.8
21:08---1.3486.10.8
21:07---1.0477.90.8
21:06---0.9466.61.1
21:05---1.3466.90.8
21:04---1.2478.4-0.1
21:03---1.1478.30.1
21:02---1.1478.50.4
21:01---1.6467.90.7
21:00---1.6480.90.4
20:59---0.8456.4-
20:58---1.0474.0-0.4
20:57---0.8481.8-0.2
20:56------0.3
20:55------0.2
20:54---0.7488.0-0.0
20:53---0.8490.5-0.7
20:52---1.0494.1-0.2
20:51---1.0492.20.1
20:50---1.0494.9-0.0
20:49---0.9490.90.0
20:48---1.3507.3-0.2
20:47---1.0497.1-0.0
20:46---1.2516.30.1
20:45---1.2513.60.3
20:44---1.1510.20.3
20:43---0.6479.8-0.0
20:42---1.0475.9-0.3
20:41---1.4509.11.7
20:40---1.4519.70.5
20:39---1.7498.10.6
20:38---2.0490.61.1
20:37---1.8501.31.7
20:36---1.4492.11.7
20:35---0.9478.51.5
20:34---1.4497.51.3
20:33---1.2504.51.5
20:32---1.2509.80.4
20:31---0.2473.00.7
20:30---1.0509.2-0.1
20:29---0.9515.2-0.7
20:28---0.7510.5-1.5
20:27---0.9507.1-1.3
20:26---0.9512.6-0.7
20:25---1.1516.9-1.4
20:24---1.0513.4-2.0
20:23---0.9511.8-2.4
20:22---1.0514.0-2.0
20:21---0.9516.7-1.3
20:20---0.9515.9-0.9
20:19---0.9515.8-1.1
20:18---0.9521.9-1.3
20:17---1.2518.3-1.1
20:16---1.0513.3-1.2
20:15---0.9504.8-1.0
20:14---0.9505.8-0.7
20:13---0.8504.0-0.8
20:12---1.0508.8-0.8
20:11---1.0506.1-0.6
20:10---0.9501.1-0.5
20:09---1.0500.6-0.5
20:08---0.8495.4-0.4
20:07---0.9497.7-0.2
20:06---1.2510.10.0
20:05---1.1517.8-0.1
20:04---1.0513.70.1
20:03---0.8493.6-0.5
20:02---0.7480.1-0.9
20:01---1.2491.3-1.0
20:00---1.3506.8-0.4
19:59---0.7489.2-0.2
19:58---0.8489.6-0.1
19:57---1.1490.2-0.9
19:56---1.3493.4-1.0
19:55---1.2496.8-0.7
19:54---1.2491.5-1.0
19:53---1.1493.0-1.2
19:52---0.7466.9-0.9
19:51---0.7457.9-0.7
19:50---1.0477.5-0.1
19:49---1.0483.2-1.4
19:48---1.1467.5-1.4
19:47---1.1469.50.1
19:46---1.3476.51.5
19:45---1.2473.8-1.6
19:44---1.1474.7-0.8
Built 2026-08-21 21:44 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-3.61.4-0.6
velocity [km/s]457.8506.8481.6
density [cm-3]2.03.12.6
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)8312336
Maasi (MAS)8110318
Kilpisjärvi (KIL)6511340
Ivalo (IVA)578280
Muonio (MUO)487300
Sodankylä (SOD)366268
Pello (PEL)346245
Oulujärvi (OUJ)21494
Mekrijärvi (MEK)13336
Hankasalmi (HAN)11446
Nurmijärvi (NUR)12441
Tartu (TAR)8429
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2026-08-21 21:32 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2026-08-21 11:18 UTC
ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
Threshold Reached: 2026-08-21 11:05 UTC
Station: GOES-19
Comment

Issue Time: 2026-08-21 09:45 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-08-21 09:26 UTC
Maximum Time: 2026-08-21 09:32 UTC
End Time: 2026-08-21 09:34 UTC
Peak Flux: 140 sfu
Duration: 8 minutes
Latest Penticton Noon Flux: 125 sfu
Comment: observed by LEA station

Issue Time: 2026-08-20 20:49 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-08-20 18:48 UTC
Estimate Velocity: 927 km/s
Comment

Issue Time: 2026-08-20 12:12 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2026-08-20 11:32 UTC
Maximum Time: 2026-08-20 11:42 UTC
End Time: 2026-08-20 11:54 UTC
Xray Class: M8.1
Optical Class: Sf
Location: N04E85
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2026-08-20 11:58 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-08-20 11:36 UTC
Estimate Velocity: 1201 km/s
Comment: SVI

Issue Time: 2026-08-20 11:39 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-08-20 11:38 UTC
Noaa Scale: R2 - Moderate
Comment
NOAA Scale: R2 - Moderate

Issue Time: 2026-08-19 17:57 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5405
Valid From: 2026-08-17 21:01 UTC
Now Valid Until: 2026-08-20 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: 2026-08-19 05:45 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-08-19 05:45 UTC
Synoptic Period: 0300-0600
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-08-18 20:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5404
Valid From: 2026-08-17 21:01 UTC
Now Valid Until: 2026-08-19 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: 2026-08-18 20:45 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-08-18 20:45 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G1 - Minor
Comment
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: 2026-08-18 20:43 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-08-18 20:42 UTC
Valid To: 2026-08-19 12:00 UTC
Warning Conditions: Onset
Noaa Scale: G1 - Minor
Comment
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 2026-08-21 19:27 from source