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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
22:12------
22:11------
22:10------
22:09------
22:082.95460.2-2.51---
22:072.62447.5-3.022.6447.5-3.0
22:062.00427.4-2.522.0427.4-2.5
22:052.55450.4-1.862.5450.4-1.9
22:043.55456.0-1.963.5456.0-2.0
22:032.94464.3-1.262.9464.3-1.3
22:022.31430.5-1.452.3430.5-1.5
22:012.42451.3-2.072.4451.3-2.1
22:003.05448.2-1.893.0448.2-1.9
21:593.11447.90.503.1447.90.5
21:582.26436.2-0.492.3436.2-0.5
21:571.97441.2-1.432.0441.2-1.4
21:562.93454.7-2.022.9454.7-2.0
21:553.41466.4-1.193.4466.4-1.2
21:542.96465.8-1.303.0465.8-1.3
21:532.85467.5-1.232.8467.5-1.2
21:523.11471.5-1.923.1471.5-1.9
21:512.89455.5-1.612.9455.5-1.6
21:503.02440.4-0.743.0440.4-0.7
21:494.18455.0-0.724.2455.0-0.7
21:484.26467.5-0.984.3467.5-1.0
21:472.92482.4-0.892.9482.4-0.9
21:462.14431.6-0.832.1431.6-0.8
21:453.00464.7-1.023.0464.7-1.0
21:442.67452.1-1.282.7452.1-1.3
21:432.63462.7-1.402.6462.7-1.4
21:421.65434.5-1.691.6434.5-1.7
21:411.79442.9-1.911.8442.9-1.9
21:402.65450.0-1.762.7450.0-1.8
21:393.04448.4-1.993.0448.4-2.0
21:382.03435.8-2.262.0435.8-2.3
21:371.07425.1-1.881.1425.1-1.9
21:36---1.77---1.8
21:352.46449.3-1.092.5449.3-1.1
21:342.66442.3-1.782.7442.3-1.8
21:333.24428.9-0.183.2428.9-0.2
21:323.12461.6-0.623.1461.6-0.6
21:312.91455.0-0.622.9455.0-0.6
21:303.06457.70.113.1457.70.1
21:292.25433.30.342.2433.30.3
21:282.92452.81.212.9452.81.2
21:272.53454.10.832.5454.10.8
21:265.39468.51.635.4468.51.6
21:253.12443.8-0.213.1443.8-0.2
21:242.66459.7-3.332.7459.7-3.3
21:232.71462.4-2.962.7462.4-3.0
21:222.66459.1-2.722.7459.1-2.7
21:212.61455.1-2.712.6455.1-2.7
21:202.36449.2-2.552.4449.2-2.6
21:192.65460.2-2.762.6460.2-2.8
21:182.98463.8-2.543.0463.8-2.5
21:172.65454.4-1.582.6454.4-1.6
21:162.69439.7-1.482.7439.7-1.5
21:153.08441.50.573.1441.50.6
21:145.95454.52.115.9454.52.1
21:131.78423.80.671.8423.80.7
21:123.27442.0-1.113.3442.0-1.1
21:112.93458.40.092.9458.40.1
21:102.85459.4-1.912.8459.4-1.9
21:092.18433.5-2.312.2433.5-2.3
21:082.40440.2-0.912.4440.2-0.9
21:072.73447.8-1.132.7447.8-1.1
21:063.08450.8-1.703.1450.8-1.7
21:052.51438.5-1.482.5438.5-1.5
21:042.08434.1-0.932.1434.1-0.9
21:033.05458.8-1.253.1458.8-1.2
21:023.23453.9-2.093.2453.9-2.1
21:013.02449.6-1.453.0449.6-1.5
21:002.10431.3-1.182.1431.3-1.2
20:592.37440.6-1.562.4440.6-1.6
20:583.28473.4-1.103.3473.4-1.1
20:576.93449.30.596.9449.30.6
20:561.96423.90.922.0423.90.9
20:552.58433.1-0.532.6433.1-0.5
20:542.95438.0-0.612.9438.0-0.6
20:532.93450.90.492.9450.90.5
20:522.22433.91.382.2433.91.4
20:512.49433.40.772.5433.40.8
20:502.49442.00.762.5442.00.8
20:493.72449.91.003.7449.91.0
20:484.80458.90.834.8458.90.8
20:473.32463.0-0.423.3463.0-0.4
20:463.45466.30.313.4466.30.3
20:453.41449.40.913.4449.40.9
20:442.96445.9-0.573.0445.9-0.6
20:432.58460.41.402.6460.41.4
20:426.92464.01.966.9464.02.0
20:413.48465.60.743.5465.60.7
20:404.75432.62.064.8432.62.1
20:392.95468.22.472.9468.22.5
20:382.84465.81.692.8465.81.7
20:372.73457.91.192.7457.91.2
20:362.50454.00.392.5454.00.4
20:352.37457.8-0.332.4457.8-0.3
20:342.64465.5-0.042.6465.5-0.0
20:332.91462.40.322.9462.40.3
20:322.40441.20.132.4441.20.1
20:311.63420.9-0.141.6420.9-0.1
20:30---0.26---0.3
20:292.50448.10.222.5448.10.2
20:282.33445.30.772.3445.30.8
20:271.22425.80.821.2425.80.8
20:264.90447.40.594.9447.40.6
20:253.23443.90.183.2443.90.2
20:246.35445.3-0.166.4445.3-0.2
20:233.12432.00.223.1432.00.2
20:222.61434.2-0.312.6434.2-0.3
20:212.81436.6-0.832.8436.6-0.8
20:202.89439.1-1.282.9439.1-1.3
20:192.71439.8-1.222.7439.8-1.2
20:182.43445.3-0.902.4445.3-0.9
20:172.50450.0-2.5450.0-
20:163.08449.6-0.883.1449.6-0.9
20:153.33451.9-0.353.3451.9-0.3
20:142.78454.0-0.922.8454.0-0.9
20:132.73450.8-0.582.7450.8-0.6
Built 2025-05-10 22:13 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-3.32.1-1.2
velocity [km/s]423.8482.4450.5
density [cm-3]1.16.92.9
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)13145387
Maasi (MAS)14042379
Kilpisjärvi (KIL)13539405
Ivalo (IVA)10722389
Muonio (MUO)10521374
Sodankylä (SOD)7417359
Pello (PEL)-14368
Oulujärvi (OUJ)298273
Mekrijärvi (MEK)174116
Hankasalmi (HAN)20596
Nurmijärvi (NUR)19571
Tartu (TAR)13446
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-05-10 22:02 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
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.

Issue Time: 2025-05-09 06:42 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3462
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 15854 pfu

Issue Time: 2025-05-08 22:34 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-05-08 22:34 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: 2025-05-08 22:24 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-05-08 22:24 UTC
Valid To: 2025-05-09 06:00 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: 2025-05-08 04:59 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3461
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 12994 pfu

Issue Time: 2025-05-07 11:47 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
May 07: None (Below G1) May 08: None (Below G1) May 09: 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 2025-05-10 10:28 from source