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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
07:30------
07:29------
07:28---3.0426.20.6
07:27---6.8448.90.4
07:2611.29460.7-6.1450.80.4
07:2511.21461.3-0.156.1449.60.5
07:2411.01460.80.057.0455.30.5
07:2311.12461.20.317.0448.6-0.2
07:2211.29461.8-0.037.1447.20.1
07:2110.61460.90.276.8447.60.3
07:2010.48461.50.496.6449.00.4
07:1910.55461.10.607.0449.5-0.2
07:1810.52460.40.546.9448.6-0.1
07:1710.68460.30.646.9447.60.1
07:1610.52457.00.547.0447.40.4
07:1510.66461.40.266.5447.40.7
07:1410.86462.20.206.8447.10.7
07:1310.90462.70.286.7448.00.6
07:1210.94462.40.516.7448.40.7
07:1110.85463.10.386.0451.90.7
07:1010.56463.40.286.6450.00.9
07:0910.74463.80.195.9451.01.0
07:0810.56463.20.17--0.8
07:0710.95463.50.16--0.8
07:0610.94463.30.126.0450.60.7
07:0510.63462.90.106.9452.20.8
07:0410.89462.30.187.2450.40.6
07:0311.68462.5-0.227.3451.20.8
07:0211.79462.4-0.157.2452.60.9
07:0112.66462.8-0.307.0451.70.7
07:0013.02463.4-0.437.0454.90.7
06:5913.02463.9-0.476.6449.20.6
06:5812.90465.5-0.715.3423.60.5
06:5712.88465.6-0.597.4447.30.4
06:5612.94466.2-0.459.1456.20.3
06:5513.37464.5-0.537.7465.50.4
06:5413.16462.9-0.684.1431.70.4
06:5313.12462.8-0.653.6420.40.5
06:5213.17462.9-0.667.0444.20.6
06:5113.26463.1-0.707.3447.40.4
06:5013.15463.5-0.827.1447.40.4
06:4913.32463.1-0.657.3447.10.2
06:4813.42463.5-0.517.3446.40.3
06:4713.62463.9-0.567.7446.50.4
06:4613.71464.7-0.677.7447.50.3
06:4513.63465.2-0.487.7447.10.2
06:4413.63465.0-0.158.0445.60.3
06:4313.70465.5-0.107.8445.30.3
06:4213.63465.9-0.068.0445.40.3
06:4113.77466.30.068.2446.50.4
06:4013.95466.00.158.0446.60.1
06:3913.92466.30.167.8446.70.2
06:3813.37467.6-0.088.1445.70.0
06:3714.21466.10.357.6446.9-0.0
06:3614.25465.80.268.2446.7-0.0
06:3514.43465.90.227.7447.9-0.0
06:3414.61465.80.087.6448.2-0.1
06:3314.67466.10.30---
06:3214.51465.60.40---
06:3114.50465.50.30---
06:3014.63465.80.38---
06:2914.75468.30.52---
06:2815.18472.3-0.04---
06:2714.25478.7-0.62---
06:2614.19479.4-0.57---
06:2513.58474.7-0.40---
06:2413.20465.9-0.01---
06:2313.41465.5-0.03---
06:2212.94465.4-0.02---
06:2113.56466.0-0.13---
06:2013.93467.2-0.33---
06:1913.41467.0-0.06---
06:1812.39464.30.11---
06:1712.51464.50.51---
06:1612.62464.30.80---
06:1512.79464.70.82---
06:1413.08464.10.87---
06:1312.99464.41.05---
06:1214.96469.00.17---
06:1115.34469.50.50---
06:1014.88468.10.19---
06:0915.01472.8-0.37---
06:0813.74469.30.83---
06:0712.79464.31.92---
06:0612.52459.73.13---
06:0511.77460.53.15---
06:0411.86461.53.08---
06:0312.71464.83.15---
06:0212.53465.13.15---
06:0112.87463.03.05---
06:0013.58462.62.19---
05:5913.01462.82.36---
05:5812.56463.82.97---
05:5713.24463.73.01---
05:5613.18468.03.62---
05:5514.60470.91.92---
05:5415.29476.00.92---
05:5314.72475.10.54---
05:5215.30474.40.09---
05:5113.04473.01.26---
05:5011.93470.3-0.08---
05:4912.54467.2-0.09---
05:4814.03480.21.15---
05:4712.28474.60.97---
05:4612.70477.21.36---
05:4512.08475.91.28---
05:4412.24474.31.18---
05:4313.00472.61.39---
05:4213.05473.21.11---
05:4112.84471.61.15---
05:4012.29473.21.02---
05:3912.86471.40.82---
05:3813.43472.00.92---
05:3713.72471.10.99---
05:3613.51471.41.09---
05:3513.40472.40.86---
05:3413.42474.21.32---
05:3312.93475.51.82---
05:3213.40474.81.63---
05:3113.26473.70.89---
Built 2018-09-24 07:31 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-0.81.1-0.1
velocity [km/s]462.3479.4465.5
density [cm-3]10.615.213.2
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)13679
Masi (MAS)16791
Kilpisjärvi (KIL)13791
Ivalo (IVA)10670
Muonio (MUO)9664
Sodankylä (SOD)9653
Pello (PEL)9650
Oulujärvi (OUJ)6632
Mekrijärvi (MEK)4420
Hankasalmi (HAN)4526
Nurmijärvi (NUR)4526
Tartu (TAR)3420
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2018-09-24 07:18 from source

Log time
(UTC)
1h estimate 4h estimate USAF kp
kp predicted time kp predicted time
15:450.002018-06-21 16:450.002018-06-21 19:451.33
15:300.332018-06-21 16:300.002018-06-21 19:301.33
15:150.332018-06-21 16:140.002018-06-21 19:141.33
15:000.332018-06-21 16:000.002018-06-21 19:001.33
14:450.332018-06-21 15:450.002018-06-21 18:451.33
14:300.672018-06-21 15:290.002018-06-21 18:291.33
14:150.672018-06-21 15:150.002018-06-21 18:151.33
14:000.672018-06-21 15:000.002018-06-21 18:001.33
13:450.672018-06-21 14:440.002018-06-21 17:441.33
13:300.332018-06-21 14:300.002018-06-21 17:301.33
13:150.332018-06-21 14:150.002018-06-21 17:151.33
13:000.332018-06-21 13:590.002018-06-21 16:591.33
12:450.332018-06-21 13:450.002018-06-21 16:451.33
12:300.672018-06-21 13:300.002018-06-21 16:301.33
12:150.672018-06-21 13:140.002018-06-21 16:141.33
12:000.672018-06-21 13:000.002018-06-21 16:001.33
11:450.672018-06-21 12:450.002018-06-21 15:451.33
11:300.672018-06-21 12:290.002018-06-21 15:291.33
11:150.672018-06-21 12:150.332018-06-21 15:151.33
11:000.672018-06-21 12:000.332018-06-21 15:001.33
Built 2018-09-03 05:04 from source
Issue Time: 2018-09-23 09:42 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2850
Begin Time: 2018-09-12 17:30 UTC
Yesterday Maximum 2MeV Flux: 4753 pfu

Issue Time: 2018-09-23 09:15 UTC
CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 837
Original Issue Time: 2018-09-20 15:43 UTC
Comment: Geomagnetic conditions no longer warrant this G1 Watch.
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: 2018-09-22 23:54 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3538
Valid From: 2018-09-21 23:35 UTC
Now Valid Until: 2018-09-23 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: 2018-09-22 15:51 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2849
Begin Time: 2018-09-12 17:30 UTC
Yesterday Maximum 2MeV Flux: 10633 pfu

Issue Time: 2018-09-22 11:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3537
Valid From: 2018-09-21 23:35 UTC
Now Valid Until: 2018-09-22 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: 2018-09-22 02:45 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018-09-22 02:45 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: 2018-09-22 00:01 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018-09-21 23:59 UTC
Synoptic Period: 2100-0000 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: 2018-09-21 23:56 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018-09-21 23:55 UTC
Valid To: 2018-09-22 09:00 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: 2018-09-21 23:44 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018-09-21 23:45 UTC
Synoptic Period: 2100-2400 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: 2018-09-21 23:33 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018-09-21 23:35 UTC
Valid To: 2018-09-22 12:00 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: 2018-09-21 09:00 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2848
Begin Time: 2018-09-12 17:30 UTC
Yesterday Maximum 2MeV Flux: 8309 pfu

Issue Time: 2018-09-20 15:43 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Sep 21: None (Below G1) Sep 22: None (Below G1) Sep 23: 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.

Built 2018-09-23 12:33 from source