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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
06:40------
06:39------
06:38---0.9322.22.5
06:375.53299.0-1.0318.82.4
06:365.45299.21.870.9323.52.6
06:355.33299.51.860.9-2.6
06:345.40299.21.880.9319.42.6
06:335.43299.21.851.2316.82.2
06:325.25300.62.161.3316.82.4
06:315.19299.52.021.2312.82.1
06:305.23299.01.820.9319.12.5
06:295.28298.71.860.8323.92.3
06:285.35298.91.890.9320.62.2
06:275.40299.32.071.2315.22.3
06:265.20298.72.051.2315.62.4
06:255.28298.52.110.9320.02.5
06:245.21299.12.220.9318.72.4
06:235.22298.52.130.8320.42.3
06:225.32299.12.181.1316.92.3
06:215.34299.32.170.9319.12.4
06:205.28298.02.061.0319.32.3
06:195.21296.62.040.8319.52.0
06:185.26297.12.011.1313.01.9
06:175.36298.11.970.8305.21.9
06:165.27300.11.750.8300.61.6
06:155.31299.41.340.7301.91.6
06:145.15299.71.260.6304.61.5
06:134.69302.61.230.7305.31.4
06:124.51302.81.120.8303.61.3
06:114.58303.81.010.7303.51.3
06:104.64304.50.990.5304.01.3
06:094.94302.90.450.6303.31.2
06:085.21299.40.210.7306.21.2
06:075.34298.90.360.7306.31.2
06:065.22298.40.640.6305.61.3
06:055.08299.90.760.8305.81.3
06:044.99300.60.800.7306.01.3
06:034.97301.30.740.6308.41.2
06:024.93301.10.780.5308.51.2
06:015.08300.80.940.8308.31.0
06:004.98302.10.960.8309.71.1
05:595.12302.80.98--1.0
05:584.70303.51.230.9309.71.0
05:574.85303.51.080.8309.61.1
05:564.82302.91.070.8309.61.1
05:554.77303.71.080.9310.61.1
05:545.00304.81.031.0310.30.9
05:535.12304.71.100.9309.21.3
05:525.01304.50.941.0309.11.3
05:515.13304.90.960.9313.60.9
05:504.89304.60.990.9312.40.4
05:494.72304.20.600.8311.20.7
05:484.75304.60.631.0311.21.0
05:474.82304.10.600.9310.60.7
05:464.77304.40.641.0311.10.8
05:454.75304.90.561.0311.00.8
05:444.66304.60.510.9310.30.9
05:434.79305.20.520.9311.50.8
05:424.75305.50.461.0312.30.8
05:414.93305.40.531.0313.00.9
05:404.92305.30.521.0312.40.9
05:394.94305.20.521.1311.40.9
05:384.82304.70.511.1311.91.0
05:374.75304.70.491.1312.61.0
05:364.83304.60.451.1312.71.1
05:354.84304.80.591.2312.71.1
05:344.90305.00.621.0315.71.2
05:334.77304.70.570.9312.41.1
05:324.77304.70.361.1312.01.3
05:314.76304.50.240.9312.51.3
05:304.83304.80.411.2315.61.3
05:295.05305.40.801.3316.01.5
05:284.90305.50.891.3313.51.4
05:274.49306.60.991.3313.41.5
05:264.51306.01.131.3312.31.4
05:255.15305.41.161.2310.91.2
05:245.25305.91.051.0309.11.4
05:235.28305.91.081.1309.21.1
05:225.27305.61.031.2310.41.1
05:215.10306.01.091.1310.71.3
05:205.21306.11.201.1312.51.3
05:195.65305.71.161.1309.81.1
05:185.14305.91.491.3311.31.1
05:175.02305.91.411.2311.01.2
05:164.99305.81.401.1312.61.3
05:154.96306.71.381.3312.01.4
05:145.14306.91.411.2312.01.4
05:135.12307.61.451.0309.21.6
05:125.17307.71.491.0312.41.6
05:116.20306.61.161.1310.31.6
05:106.68306.80.881.2312.01.6
05:096.43306.61.001.2312.31.6
05:086.18307.51.121.2311.41.5
05:076.21308.01.131.2311.21.6
05:065.87307.71.411.2310.21.6
05:055.99307.71.611.2310.11.7
05:046.05307.01.571.3312.31.6
05:036.06307.61.531.3313.71.6
05:026.40308.11.581.3313.61.6
05:016.20307.71.591.3314.61.6
05:006.02307.91.561.4310.81.4
04:595.80308.21.591.5314.41.4
04:585.85307.81.561.2310.81.5
04:575.91306.91.671.1313.01.5
04:565.70307.01.711.0313.61.5
04:555.87307.31.671.5310.51.5
04:545.93307.61.621.2311.71.5
04:535.84307.71.611.2312.21.5
04:525.74307.21.621.3311.71.4
04:516.12306.81.571.3312.21.5
04:506.37307.31.571.4312.41.4
04:496.15308.81.601.4311.21.4
04:485.80310.61.611.6312.11.4
04:475.73309.01.561.5312.51.5
04:465.53309.11.551.7312.21.5
04:455.49309.91.531.5312.51.4
04:445.80308.71.571.2311.61.4
04:435.53307.51.661.6312.81.4
04:425.57307.41.631.3311.81.4
04:415.69307.81.631.1311.71.5
Built 2021-08-05 06:41 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]0.22.21.0
velocity [km/s]296.6306.6302.6
density [cm-3]4.55.45.0
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)5220
Maasi (MAS)5319
Kilpisjärvi (KIL)4220
Ivalo (IVA)4218
Muonio (MUO)3216
Sodankylä (SOD)-217
Pello (PEL)3218
Oulujärvi (OUJ)5215
Mekrijärvi (MEK)6213
Hankasalmi (HAN)7213
Nurmijärvi (NUR)5214
Tartu (TAR)5212
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2021-08-05 06:32 from source
Issue Time: 2021-08-02 20:26 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2021-08-02 20:26 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: 2021-08-02 20:00 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2021-08-02 19:59 UTC
Valid To: 2021-08-02 23:59 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: 2021-08-02 19:59 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3921
Valid From: 2021-08-02 17:15 UTC
Now Valid Until: 2021-08-03 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: 2021-08-02 17:44 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2021-08-02 17:44 UTC
Synoptic Period: 1500-1800 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: 2021-08-02 17:12 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2021-08-02 17:15 UTC
Valid To: 2021-08-02 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.

Built 2021-08-02 20:28 from source