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SeadedLast update:
Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
20:46------
20:45------
20:445.63676.3----
20:435.28643.61.85---
20:424.56582.0-1.38---
20:414.48638.3-3.22---
20:405.45660.6-4.91---
20:391.30547.3-5.57---
20:383.38585.1-4.97---
20:374.46629.5-5.35---
20:361.98585.1-8.86---
20:352.58629.3-10.07---
20:344.33671.9-9.94---
20:334.08632.4-8.92---
20:324.30651.8-9.09---
20:314.31684.6-8.33---
20:305.04680.8-8.51---
20:294.86664.0-8.22---
20:283.56620.7-8.173.6620.7-8.2
20:273.97664.4-9.024.0664.4-9.0
20:265.12670.8-8.915.1670.8-8.9
20:253.88633.5-7.653.9633.5-7.6
20:243.43620.4-6.383.4620.4-6.4
20:234.42660.7-6.014.4660.7-6.0
20:225.09661.4-3.705.1661.4-3.7
20:214.71647.2-0.664.7647.2-0.7
20:207.10616.84.937.1616.84.9
20:196.64625.83.956.6625.84.0
20:186.13638.71.056.1638.71.0
20:176.97641.72.487.0641.72.5
20:165.48637.81.465.5637.81.5
20:156.69566.1-1.706.7566.1-1.7
20:145.22700.2-8.105.2700.2-8.1
20:135.24697.9-6.835.2697.9-6.8
20:125.36676.8-4.075.4676.7-4.1
20:114.58594.80.064.8592.50.1
20:105.15658.14.255.2658.04.2
20:090.54527.52.350.5527.52.3
20:082.97626.9-2.493.0626.9-2.5
20:073.48639.26.523.5639.26.5
20:064.33640.74.714.3640.74.7
20:054.21653.8-1.094.2653.8-1.1
20:044.45658.5-1.094.4658.5-1.1
20:034.08615.4-3.804.1615.4-3.8
20:023.93611.0-1.563.9611.0-1.6
20:014.38647.4-0.684.4647.4-0.7
20:004.18643.2-2.154.2643.2-2.2
19:594.24636.9-0.614.2636.9-0.6
19:583.84594.0-0.063.8594.0-0.1
19:574.09655.4-0.694.6655.9-0.7
19:564.24660.5-2.984.2660.5-3.0
19:554.48665.4-4.464.5665.4-4.5
19:543.81588.0-5.313.8588.0-5.3
19:533.92658.9-5.433.9658.9-5.4
19:524.04660.1-5.234.0660.1-5.2
19:513.94656.2-5.673.9656.2-5.7
19:503.48600.5-6.713.5600.5-6.7
19:493.68638.0-7.243.7638.0-7.2
19:484.03673.5-4.0673.5-
19:473.36651.4-3.4651.4-
19:463.04614.0-2.883.0614.0-2.9
19:453.59614.8-3.033.6614.8-3.0
19:444.19667.8-2.864.2667.8-2.9
19:434.94701.6-3.934.9701.6-3.9
19:424.03650.2-3.064.0650.2-3.1
19:413.59661.4-3.393.6661.4-3.4
19:403.63661.8-4.253.6661.8-4.2
19:394.34669.6-4.383.9670.4-4.4
19:384.57660.6-2.364.6660.6-2.4
19:373.85619.3-1.813.8619.3-1.8
19:364.75642.4-2.594.7642.4-2.6
19:354.56637.7-0.964.6637.7-1.0
19:344.67643.8-0.554.7643.8-0.5
19:333.90636.3-1.553.9636.3-1.6
19:326.65626.1-3.306.6626.1-3.3
19:316.75635.4-6.7635.4-
19:304.35649.6-4.4649.6-
19:293.90638.73.433.9638.73.4
19:284.14628.83.274.1628.83.3
19:275.32658.45.895.3658.45.9
19:266.56670.66.686.6670.66.7
19:254.87698.55.164.7691.25.2
19:245.00676.83.593.7616.23.6
19:234.58662.14.874.6662.14.9
19:224.38692.63.694.4692.63.7
19:216.63681.57.146.6681.57.1
19:20------
19:194.36651.73.224.4651.73.2
19:184.49657.23.664.5657.23.7
19:174.22651.64.244.2651.64.2
19:164.20644.32.254.2644.32.3
19:154.31642.0-3.944.3642.0-3.9
19:14---2.98---3.0
19:134.46639.9-4.5639.9-
19:124.47645.32.024.5645.32.0
19:114.42647.92.674.4647.92.7
19:104.62642.60.484.6642.60.5
19:094.07645.6-0.604.1645.6-0.6
19:08---0.41---0.4
19:07--1.54--1.5
19:064.01646.03.474.0646.03.5
19:053.63651.73.633.6651.73.6
19:044.03647.73.604.0647.73.6
19:034.01651.22.934.0651.22.9
19:024.10647.52.874.1647.52.9
19:011.70594.50.971.7594.51.0
19:002.60614.03.022.6614.03.0
18:594.18647.7-4.134.2647.7-
18:583.85654.6-4.643.8654.6-4.6
18:573.85651.1-4.403.9651.1-4.4
18:564.10650.3-4.574.1650.3-4.6
18:554.45655.7-4.644.4655.7-4.6
18:544.02664.8-3.594.0664.8-3.6
18:533.80664.7-2.563.8664.7-2.6
18:524.08672.4-0.244.1672.4-0.2
18:512.41700.2-1.772.4700.2-1.8
18:502.92681.2-8.702.9681.2-8.7
18:493.63680.5-5.403.6680.5-5.4
18:482.65712.8-5.472.6712.8-5.5
18:473.71709.6-4.303.7709.6-4.3
Built 2026-05-15 20:47 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-10.16.5-3.6
velocity [km/s]527.5700.2637.7
density [cm-3]0.57.14.3
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)209151623
Maasi (MAS)203151648
Kilpisjärvi (KIL)207143692
Ivalo (IVA)194144614
Muonio (MUO)192113594
Sodankylä (SOD)-105597
Pello (PEL)169108532
Oulujärvi (OUJ)16235510
Mekrijärvi (MEK)7525237
Hankasalmi (HAN)3816192
Nurmijärvi (NUR)2716121
Tartu (TAR)1712146
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2026-05-15 20:47 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2026-05-15 17:18 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-05-15 16:16 UTC
Estimate Velocity: 529 km/s
Comment

Issue Time: 2026-05-15 16:07 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-05-15 16:06 UTC
Synoptic Period: 1500-1800
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: 2026-05-15 14:50 UTC
WARNING: Geomagnetic K-index of 6 expected
Valid From: 2026-05-15 14:49 UTC
Valid To: 2026-05-15 21:00 UTC
Warning Conditions: Onset
Noaa Scale: G2 - Moderate
Comment
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: 2026-05-15 13:45 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-05-15 13:44 UTC
Estimate Velocity: 347 km/s
Comment

Issue Time: 2026-05-15 13:27 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026-05-15 13:26 UTC
Synoptic Period: 1200-1500
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: 2026-05-15 13:07 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026-05-15 13:05 UTC
Valid To: 2026-05-15 23:59 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.

Issue Time: 2026-05-15 13:09 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5337
Valid From: 2026-05-13T20:26:00
Now Valid Until: 2026-05-16 12:00
Warning Condition: Persistence
Extended 2026-05-15 13: 09 by Forecaster User
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2026-05-15 13:00 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-05-15 13:00 UTC
Synoptic Period: 1200-1500
Active Warning: YES
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2026-05-15 12:25 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-05-15 12:25 UTC
Estimate Velocity: 486 km/s
Comment

Issue Time: 2026-05-15 11:58 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-05-15 11:57 UTC
Valid To: 2026-05-16 00:00 UTC
Warning Conditions: Onset
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2026-05-14 08:53 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
May 15: G2 (Moderate) May 16: G1 (Minor) May 17: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment: included the G1 watch for day3 (17 May)
included the G1 watch for day3 (17 May)
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: 2026-05-13 20:27 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-05-13 20:26 UTC
Valid To: 2026-05-14 06:00 UTC
Warning Conditions: Onset
Comment
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2026-05-13 09:07 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day
May 14: None (Below G1) May 15: G2 (Moderate) May 16: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment
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.

Built 2026-05-15 17:20 from source