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Time
UTC
DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
18:34------
18:33------
18:322.69422.50.49---
18:312.52422.70.62---
18:302.41425.80.68---
18:292.35425.60.85---
18:28--1.08---
18:272.13-0.98---
18:262.13429.20.782.1429.20.8
18:252.56427.30.862.6427.30.9
18:242.46429.00.622.5429.00.6
18:232.72424.90.922.7424.90.9
18:222.74424.40.662.7424.40.7
18:211.68439.10.611.7439.10.6
18:201.22446.50.901.2446.50.9
18:191.45448.20.681.4448.20.7
18:181.89451.50.301.9451.50.3
18:171.99461.10.372.0461.10.4
18:161.62465.3-0.281.6465.3-0.3
18:151.41459.0-0.591.4459.0-0.6
18:141.60460.7-0.351.6460.7-0.4
18:131.75463.7-0.351.7463.7-0.3
18:121.91466.91.201.9466.91.2
18:110.82431.8-0.540.8431.8-0.5
18:100.99428.00.181.0428.00.2
18:091.55480.10.331.6480.10.3
18:081.11423.60.551.1423.60.6
18:072.22422.70.772.2422.70.8
18:062.26423.11.292.3423.11.3
18:052.41417.90.752.4417.90.7
18:042.52415.00.552.5415.00.5
18:032.50418.10.162.5418.10.2
18:022.49421.50.202.5421.50.2
18:012.43423.11.002.4423.11.0
18:002.22424.11.342.2424.11.3
17:592.20423.70.672.2423.70.7
17:582.57422.60.172.6422.60.2
17:572.70422.80.942.7422.80.9
17:562.72423.60.622.7423.60.6
17:552.74423.30.452.7423.30.4
17:54--0.61--0.6
17:532.72424.50.862.7424.50.9
17:522.70422.80.622.7422.80.6
17:512.64424.60.452.6424.60.4
17:502.46421.31.152.5421.31.1
17:492.42420.11.022.4420.11.0
17:482.45423.80.672.5423.80.7
17:472.45421.90.952.4421.90.9
17:462.43420.51.052.4420.51.0
17:452.44423.40.822.4423.40.8
17:442.45424.41.132.4424.41.1
17:432.51422.60.942.5422.60.9
17:422.61421.00.792.6421.00.8
17:412.67422.30.892.7422.30.9
17:403.44434.30.673.4434.30.7
17:391.44405.41.111.4405.41.1
17:384.13445.80.674.1445.80.7
17:371.71469.30.661.7469.30.7
17:362.23421.90.542.2421.90.5
17:353.88437.00.273.9437.00.3
17:342.80433.1-0.212.8433.1-0.2
17:332.71429.3-0.172.7429.3-0.2
17:322.63425.00.082.6425.00.1
17:313.03427.8-0.373.0427.8-0.4
17:302.96431.5-0.133.0431.5-0.1
17:292.41422.2-0.262.4422.2-0.3
17:282.51419.8-0.422.5419.8-0.4
17:273.02434.30.053.0434.30.0
17:263.01429.90.553.0429.90.6
17:252.37424.00.542.4424.00.5
17:242.16436.20.952.2436.21.0
17:232.87425.41.552.9425.41.6
17:222.28430.60.342.3430.60.3
17:212.28--0.592.3--0.6
17:202.17430.8-1.032.2430.8-1.0
17:192.51428.4-2.482.5428.4-2.5
17:182.98435.2-2.553.0435.2-2.6
17:172.64437.5-2.432.6437.5-2.4
17:162.57426.1-1.642.6426.1-1.6
17:152.44421.80.132.4421.80.1
17:142.40432.00.722.4432.00.7
17:132.58433.9-0.482.6433.9-0.5
17:122.66427.3-0.532.7427.3-0.5
17:112.40433.8-1.442.4433.8-1.4
17:102.00441.5-0.322.0441.5-0.3
17:092.40434.2-0.332.4434.2-0.3
17:082.82431.9-1.352.8431.9-1.4
17:072.60426.6-1.372.6426.6-1.4
17:062.37432.2-1.332.4432.2-1.3
17:052.62440.3-2.042.6440.3-2.0
17:042.33437.0-1.922.3437.0-1.9
17:032.99436.4-1.373.0436.4-1.4
17:022.42436.3-2.162.4436.3-2.2
17:013.50437.6-1.333.5437.6-1.3
17:003.82439.0-1.283.8439.0-1.3
16:593.14438.9-0.983.1438.9-1.0
16:582.90436.8-1.542.9436.8-1.5
16:572.87425.1-1.872.9425.1-1.9
16:563.75420.7-1.683.8420.7-1.7
16:554.78432.7-1.704.8432.7-1.7
16:542.66425.9-1.432.7425.9-1.4
16:531.51414.3-0.781.5414.3-0.8
16:522.87425.4-1.002.9425.4-1.0
16:513.19431.5-0.093.2431.5-0.1
16:503.67438.50.423.7438.50.4
16:494.64424.81.534.6424.81.5
16:484.65424.61.794.7424.61.8
16:473.29441.12.293.3441.12.3
16:462.88429.21.852.9429.21.9
16:452.56425.51.222.6425.51.2
16:442.55426.01.162.5426.01.2
16:432.43427.11.122.4427.11.1
16:422.57426.51.182.6426.51.2
16:412.71425.51.082.7425.51.1
16:402.65424.70.702.7424.70.7
16:392.61422.50.072.6422.50.1
16:382.22421.50.052.2421.50.1
16:372.05427.2-0.762.1427.2-0.8
16:362.71431.0-0.212.7431.0-0.2
16:352.20426.31.392.2426.31.4
Built 2023-11-28 18:35 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-0.61.30.5
velocity [km/s]405.4480.1431.7
density [cm-3]0.84.12.3
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)524137
Maasi (MAS)514129
Kilpisjärvi (KIL)424124
Ivalo (IVA)44496
Muonio (MUO)504100
Sodankylä (SOD)70492
Pello (PEL)63485
Oulujärvi (OUJ)21338
Mekrijärvi (MEK)10222
Hankasalmi (HAN)10228
Nurmijärvi (NUR)8329
Tartu (TAR)6224
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2023-11-28 18:32 from source
Issue Time: 2023-11-27 18:19 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Nov 28: None (Below G1) Nov 29: None (Below G1) Nov 30: 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: 2023-11-26 11:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4514
Valid From: 2023-11-25 04:22 UTC
Now Valid Until: 2023-11-26 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: 2023-11-26 08:26 UTC
ALERT: Type IV Radio Emission
Begin Time: 2023-11-26 07:52 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

Issue Time: 2023-11-26 08:09 UTC
ALERT: Type II Radio Emission
Begin Time: 2023-11-26 07:47 UTC
Estimated Velocity: 413 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

Issue Time: 2023-11-25 20:06 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2023-11-25 20:03 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
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: 2023-11-25 20:06 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2023-11-25 20:03 UTC
Valid To: 2023-11-25 23:59 UTC
Warning Condition: Onset
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: 2023-11-25 20:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1838
Valid From: 2023-11-25 08:24 UTC
Now Valid Until: 2023-11-26 06:00 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: 2023-11-25 20:06 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4513
Valid From: 2023-11-25 04:22 UTC
Now Valid Until: 2023-11-26 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: 2023-11-25 19:28 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-11-25 19:26 UTC
Synoptic Period: 1800-2100 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: 2023-11-25 17:36 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2023-11-25 17:34 UTC
Synoptic Period: 1500-1800 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.

Built 2023-11-28 15:41 from source