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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
06:34------
06:33------
06:32--3.05---
06:31--3.08---
06:303.02425.83.41---
06:293.07426.43.58---
06:283.03426.73.69---
06:272.85433.24.30--4.3
06:263.05431.34.613.1431.34.6
06:253.28430.24.193.3430.24.2
06:243.41433.04.143.4433.04.1
06:233.51434.44.063.5434.44.1
06:223.36430.94.103.4430.94.1
06:213.16433.13.973.2433.14.0
06:203.37432.64.283.4432.64.3
06:193.34434.84.253.3434.84.3
06:183.29432.54.503.3432.54.5
06:172.81437.64.432.8437.64.4
06:162.35435.74.602.4435.74.6
06:152.56440.24.952.6440.25.0
06:142.28439.85.082.3439.85.1
06:132.44440.35.102.4440.35.1
06:122.40440.75.092.4440.75.1
06:112.18440.55.042.2440.55.0
06:102.17440.05.332.2440.05.3
06:092.29440.35.532.3440.35.5
06:082.33439.65.082.3439.65.1
06:072.31438.15.102.3438.15.1
06:062.24440.25.042.2440.25.0
06:052.34439.64.962.3439.65.0
06:042.34439.64.892.3439.64.9
06:032.32438.84.872.3438.84.9
06:021.99441.65.062.0441.65.1
06:012.29439.05.172.3439.05.2
06:002.44437.65.102.4437.65.1
05:592.53441.74.332.5441.74.3
05:582.56449.54.692.6449.54.7
05:572.69448.94.792.7448.94.8
05:562.70450.84.532.7450.84.5
05:552.69452.44.232.7452.44.2
05:542.44442.74.022.4442.74.0
05:532.45444.43.722.5444.43.7
05:522.54449.93.692.5449.93.7
05:512.65454.83.892.6454.83.9
05:502.57453.04.482.6453.04.5
05:492.38450.84.362.4450.84.4
05:482.51455.24.602.5455.24.6
05:472.75454.75.072.8454.75.1
05:462.79443.34.772.8443.34.8
05:452.44436.53.712.4436.53.7
05:442.48437.53.532.5437.53.5
05:432.35438.63.362.4438.63.4
05:422.35438.23.432.3438.23.4
05:412.32436.33.492.3436.33.5
05:402.28437.43.472.3437.43.5
05:392.25441.24.012.3441.24.0
05:382.37439.04.562.4439.04.6
05:372.51434.93.692.5434.93.7
05:362.56434.83.312.6434.83.3
05:352.70436.22.992.7436.23.0
05:342.73440.12.142.7440.12.1
05:332.26443.22.772.3443.22.8
05:322.36442.43.232.4442.43.2
05:312.32443.13.412.3443.13.4
05:302.57444.23.652.6444.23.6
05:291.94443.63.811.9443.63.8
05:282.44441.33.822.4441.33.8
05:272.44440.43.802.4440.43.8
05:262.52441.33.702.5441.33.7
05:252.31442.23.872.3442.23.9
05:242.35445.13.942.3445.13.9
05:232.44442.93.992.4442.94.0
05:222.45440.43.972.5440.44.0
05:212.05435.04.202.0435.04.2
05:202.18437.03.832.2437.03.8
05:192.40441.33.582.4441.33.6
05:182.41442.03.742.4442.03.7
05:172.36437.13.722.4437.13.7
05:162.00441.73.822.0441.73.8
05:152.27439.54.052.3439.54.0
05:142.80437.64.022.8437.64.0
05:133.61431.23.933.6431.23.9
05:123.51430.73.653.5430.73.7
05:112.60433.23.432.6433.23.4
05:102.98427.13.653.0427.13.7
05:093.31438.43.153.3438.43.1
05:083.32449.54.833.3449.54.8
05:073.34450.34.913.3450.34.9
05:062.43432.95.012.4432.95.0
05:052.63427.44.862.6427.44.9
05:043.81439.94.563.8439.94.6
05:033.33442.54.063.3442.54.1
05:022.64436.13.912.6436.13.9
05:012.07417.13.712.1417.13.7
05:002.47431.93.762.5431.93.8
04:593.13430.14.113.1430.14.1
04:583.21433.64.293.2433.64.3
04:573.23433.84.343.2433.84.3
04:562.45438.84.312.4438.84.3
04:552.98435.04.223.0435.04.2
04:542.97438.23.903.0438.23.9
04:532.70436.54.122.7436.54.1
04:522.35438.03.902.4438.03.9
04:512.65445.63.892.7445.63.9
04:50--3.96--4.0
04:49--3.87--3.9
04:482.74444.13.902.7444.13.9
04:472.61446.93.792.6446.93.8
04:462.62453.03.852.6453.03.9
04:453.20451.13.843.2451.13.8
04:442.13441.63.542.1441.63.5
04:433.06444.43.553.1444.43.5
04:422.30435.13.492.3435.13.5
04:412.21427.33.712.2427.33.7
04:402.63438.93.412.6438.93.4
04:392.75437.23.442.8437.23.4
04:382.67437.13.372.7437.13.4
04:372.74437.43.382.7437.43.4
04:362.80448.53.562.8448.53.6
04:352.85451.44.092.8451.44.1
Built 2025-05-09 06:35 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]2.15.54.3
velocity [km/s]430.2455.2440.7
density [cm-3]1.93.52.6
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)19445
Maasi (MAS)21440
Kilpisjärvi (KIL)21446
Ivalo (IVA)18531
Muonio (MUO)18431
Sodankylä (SOD)16429
Pello (PEL)-429
Oulujärvi (OUJ)11422
Mekrijärvi (MEK)10217
Hankasalmi (HAN)-318
Nurmijärvi (NUR)13319
Tartu (TAR)10315
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-05-09 06:32 from source
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.

Issue Time: 2025-05-07 04:59 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3460
Begin Time: 2025-05-02 13:30 UTC
Yesterday Maximum 2MeV Flux: 11876 pfu

Issue Time: 2025-05-06 23:46 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4955
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-07 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: 2025-05-06 14:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4954
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-06 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: 2025-05-06 08:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4953
Valid From: 2025-05-01 03:43 UTC
Now Valid Until: 2025-05-06 15:00 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.

Built 2025-05-09 05:23 from source