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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
08:00------
07:593.48430.2----
07:584.04430.20.36---
07:575.11427.6-3.24---
07:564.83429.7-5.29---
07:552.82415.7-4.59---
07:546.83424.84.17---
07:534.42445.01.75---
07:524.01439.0-0.88---
07:512.83410.7-1.99---
07:503.06426.5-1.71---
07:496.02430.1-0.30---
07:483.57445.6-0.54---
07:471.52443.2-3.431.5443.2-3.4
07:461.44435.3-0.401.4435.3-0.4
07:453.41425.12.733.4425.12.7
07:443.69427.11.073.7427.11.1
07:433.30432.30.943.3432.30.9
07:421.58439.3-1.671.6439.3-1.7
07:411.99447.9-3.642.0447.9-3.6
07:402.48451.1-2.582.5451.1-2.6
07:391.84451.1-1.721.8451.1-1.7
07:381.70430.5-2.121.7430.5-2.1
07:373.46420.80.613.5420.80.6
07:361.89432.30.811.9432.30.8
07:351.79436.20.201.8436.20.2
07:341.53429.2-0.211.5429.2-0.2
07:331.63429.9-0.151.6429.9-0.2
07:321.72433.3-0.141.7433.3-0.1
07:311.38424.7-0.041.4424.7-0.0
07:301.28423.90.121.3423.90.1
07:291.40432.4-0.441.4432.4-0.4
07:281.51436.5-0.641.5436.5-0.6
07:271.63435.1-0.701.6435.1-0.7
07:261.29431.6-0.371.3431.6-0.4
07:251.09439.1-0.631.1439.1-0.6
07:241.29441.8-0.661.3441.8-0.7
07:231.66438.8-2.151.7438.8-2.1
07:221.08431.0-0.221.1431.0-0.2
07:210.97442.1-1.501.0442.1-1.5
07:200.51427.4-2.030.5427.4-2.0
07:191.17441.1-3.641.2441.1-3.6
07:180.76430.0-1.440.8430.0-1.4
07:171.07433.6-1.381.1433.6-1.4
07:161.00432.4-0.621.0432.4-0.6
07:151.02435.7-0.901.0435.7-0.9
07:140.76428.2-0.700.8428.2-0.7
07:130.41417.4-0.390.4417.4-0.4
07:121.83439.7-0.271.8439.7-0.3
07:111.94435.50.031.9435.50.0
07:101.79423.0-0.311.8423.0-0.3
07:090.96417.0-0.691.0417.0-0.7
07:082.53434.10.032.5434.10.0
07:072.17424.00.242.2424.00.2
07:062.80424.20.382.8424.20.4
07:052.26408.60.772.3408.60.8
07:042.74419.20.512.7419.20.5
07:032.93436.6-0.212.9436.6-0.2
07:023.42438.3-0.773.4438.3-0.8
07:011.77426.80.931.8426.80.9
07:004.29435.80.754.3435.80.7
06:594.87444.80.834.9444.80.8
06:582.35429.71.502.4429.71.5
06:571.24423.81.651.2423.81.6
06:562.43435.21.472.4435.21.5
06:553.01437.5-0.033.0437.5-0.0
06:541.62434.0-1.341.6434.0-1.3
06:531.10413.7-1.071.1413.7-1.1
06:525.58438.9-0.075.6438.9-0.1
06:5110.43452.72.5910.4452.72.6
06:507.33447.03.827.3447.03.8
06:491.07415.54.221.1415.54.2
06:485.52437.25.005.5437.25.0
06:478.55441.64.698.5441.64.7
06:466.85445.54.696.8445.54.7
06:452.45424.24.482.4424.24.5
06:445.26431.65.345.3431.65.3
06:437.69440.25.757.7440.25.8
06:427.51442.26.037.5442.26.0
06:414.45433.66.024.5433.66.0
06:401.01420.85.181.0420.85.2
06:396.54431.85.556.5431.85.6
06:387.14436.65.877.1436.65.9
06:377.86446.26.377.9446.26.4
06:363.67426.95.953.7426.96.0
06:358.67442.16.068.7442.16.1
06:345.60443.66.595.6443.66.6
06:336.64455.16.886.6455.16.9
06:321.94416.16.841.9416.16.8
06:315.49440.67.515.5440.67.5
06:305.71442.27.275.7442.27.3
06:295.25454.47.725.3454.47.7
06:284.29444.18.304.3444.18.3
06:275.16436.28.535.2436.28.5
06:266.74436.58.856.7436.58.8
06:256.24431.98.216.2431.98.2
06:246.91431.48.036.9431.48.0
06:238.94437.87.778.9437.87.8
06:227.08438.36.657.1438.36.7
06:217.99446.45.698.0446.45.7
06:202.62420.04.832.6420.04.8
06:197.44443.14.017.4443.14.0
06:188.17452.75.278.2452.75.3
06:174.95431.16.115.0431.16.1
06:163.43427.76.213.4427.76.2
06:156.51440.26.556.5440.26.5
06:144.94439.66.804.9439.66.8
06:136.17443.27.146.2443.27.1
06:122.75428.47.352.7428.47.3
06:113.74433.06.983.7433.07.0
06:106.59444.67.416.6444.67.4
06:097.18447.97.567.2447.97.6
06:084.87439.37.914.9439.37.9
06:070.98422.37.651.0422.37.7
06:067.29440.57.847.3440.57.8
06:057.51443.28.877.5443.28.9
06:047.60451.68.967.6451.69.0
06:031.37424.58.701.4424.58.7
06:025.48434.78.845.5434.78.8
06:016.69457.38.416.7457.38.4
Built 2025-05-12 08:01 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-3.66.00.4
velocity [km/s]408.6452.7433.1
density [cm-3]0.410.42.6
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)17543
Maasi (MAS)16444
Kilpisjärvi (KIL)20544
Ivalo (IVA)16434
Muonio (MUO)16432
Sodankylä (SOD)17430
Pello (PEL)-429
Oulujärvi (OUJ)11422
Mekrijärvi (MEK)8315
Hankasalmi (HAN)13319
Nurmijärvi (NUR)9419
Tartu (TAR)7316
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-05-12 07:47 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2025-05-11 21:02 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-11 21:00 UTC
Valid To: 2025-05-12 06:00 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: 2025-05-11 21:00 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-05-11 20:58 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: No
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: 2025-05-11 20:24 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-11 20:21 UTC
Synoptic Period: 1800-2100 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: 2025-05-11 14:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4960
Valid From: 2025-05-11 04:20 UTC
Now Valid Until: 2025-05-12 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: 2025-05-11 04:20 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-11 04:20 UTC
Valid To: 2025-05-11 15:00 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: 2025-05-10 10:26 UTC
CANCEL WARNING: Geomagnetic K-index of 5 expected
Cancel Serial Number: 2039
Original Issue Time: 2025-05-09 23:48 UTC
Comment: Geomagnetic K-index of 5 no longer expected.
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: 2025-05-10 06:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4958
Valid From: 2025-05-09 19:53 UTC
Now Valid Until: 2025-05-10 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: 2025-05-10 05:59 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2038
Valid From: 2025-05-09 23:48 UTC
Now Valid Until: 2025-05-10 12:00 UTC
Warning Condition: Persistence
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: 2025-05-09 23:48 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-05-09 23:48 UTC
Valid To: 2025-05-10 06:00 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: 2025-05-09 19:57 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-09 19:56 UTC
Synoptic Period: 1800-2100 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: 2025-05-09 19:56 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-09 19:53 UTC
Valid To: 2025-05-10 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.

Built 2025-05-12 07:05 from source