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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
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22:21--7.66---
22:2015.57479.16.98---
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22:1817.60478.87.25---
22:1717.58479.46.66---
22:1617.43481.46.56---
22:1517.07482.36.95---
22:1417.05482.46.81---
22:1316.39485.77.23---
22:1214.66485.36.75---
22:1114.66484.16.31---
22:1014.86481.06.98---
22:0914.90480.17.26---
22:0814.23480.07.11--6.0
22:0714.20481.17.174.1481.96.7
22:0614.17479.67.035.0484.66.2
22:0513.35478.86.476.6491.66.1
22:0414.14482.15.085.9495.45.5
22:0313.26480.55.324.8499.05.1
22:0214.21485.15.434.1513.97.0
22:0111.84484.65.424.5484.07.0
22:0010.66491.35.926.3482.16.6
21:5910.38484.66.246.4482.0-
21:5810.55485.55.961.0469.76.7
21:5710.30485.65.740.8484.35.1
21:5610.92484.75.290.6476.24.9
21:5511.48484.64.890.8466.14.1
21:5412.43484.86.230.9473.93.8
21:5312.60486.27.000.8474.04.7
21:5213.31489.56.670.7469.14.9
21:5113.17483.18.402.7466.36.3
21:5012.82482.66.824.2468.07.6
21:4912.15481.55.750.3482.27.3
21:4812.43481.13.380.3458.06.5
21:4711.52480.43.010.3465.16.5
21:4611.89478.03.180.2474.96.3
21:4511.87479.34.210.2469.15.8
21:4414.25471.34.850.3451.65.3
21:4314.20469.15.050.3467.05.5
21:4214.19468.77.140.2457.55.3
21:4116.27466.77.520.3464.55.6
21:4019.86465.26.830.3461.75.9
21:3918.56461.16.480.3464.35.9
21:3817.26458.86.550.2462.46.3
21:3716.14464.76.110.1467.66.2
21:3618.35463.85.540.3468.16.2
21:3520.08457.45.130.4459.16.3
21:3421.11462.85.220.2456.36.5
21:3320.34459.35.270.3463.45.7
21:3220.01461.85.620.4477.16.6
21:3119.80460.15.790.4443.55.4
21:3019.49460.86.130.4449.44.7
21:2918.65464.76.230.3449.05.0
21:2819.91464.26.100.4476.45.9
21:2719.72463.66.070.3437.45.7
21:2619.79461.86.100.4447.35.0
21:2518.97456.06.040.3460.35.3
21:2419.57456.76.130.3449.95.6
21:2321.26452.15.700.2447.75.8
21:2221.00451.24.740.3447.76.0
21:2122.35451.54.790.4455.55.9
21:2022.25450.05.190.3470.16.4
21:1922.70449.86.150.3466.96.2
21:1823.39451.95.440.3446.46.6
21:1722.73449.75.010.4445.06.7
21:1621.23451.05.810.4465.06.9
21:1520.45451.65.410.3480.86.7
21:1421.48452.45.810.3456.56.5
21:1321.25453.55.770.5463.46.1
21:1220.94454.05.970.5449.25.8
21:1120.75454.46.1615.3652.45.7
21:1020.77454.86.222.9475.65.7
21:0920.87453.96.700.5445.15.6
21:0820.78453.36.660.4464.75.7
21:0721.63455.76.500.4492.05.6
21:0622.21456.86.340.3468.86.2
21:0521.85456.46.550.4460.46.3
21:0422.70456.16.020.4469.45.7
21:0323.32456.85.880.3462.25.4
21:0223.49456.25.59--5.5
21:0123.24454.05.650.6466.24.3
21:0023.98449.65.510.6466.25.5
20:5924.49447.65.420.5466.15.5
20:5824.96448.65.470.6464.15.7
20:5723.46455.05.820.4452.95.5
20:5622.39465.56.480.7465.55.8
20:5523.94460.15.390.5493.05.4
20:5424.51458.05.700.5492.35.4
20:5324.97454.34.760.5460.54.7
20:5224.03456.95.010.5457.34.3
20:5123.04458.75.580.4458.64.6
20:5023.31459.15.490.5474.35.2
20:4923.46459.05.141.7461.75.3
20:4824.12459.45.422.2451.74.9
20:4723.94458.85.411.7468.65.4
20:4624.34458.75.022.5480.16.4
20:4525.26457.94.442.9486.67.3
20:4426.67458.84.272.6452.38.1
20:4326.58459.43.932.6473.38.2
20:4225.68461.35.222.8474.88.2
20:4122.52464.75.202.5500.68.5
20:4025.19459.65.112.3457.28.5
20:3925.08460.44.892.1464.89.1
20:3820.67467.16.362.0472.68.8
20:3719.64467.56.972.7494.48.0
20:3618.20470.17.972.9480.98.3
20:3519.88470.17.991.9471.09.4
20:3421.05469.68.062.0478.49.4
20:3321.10469.68.273.6487.79.2
20:3223.50467.08.404.0469.310.3
20:3124.61463.28.934.7447.89.1
20:3024.50462.28.867.1455.08.7
20:2924.25462.28.10--9.9
20:2824.26462.27.900.2452.19.8
20:2724.79460.79.560.2452.49.7
20:2623.36460.49.320.2455.59.6
20:2522.76459.78.990.2463.210.0
Built 2025-04-16 22:25 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]3.08.45.8
velocity [km/s]449.7491.3469.6
density [cm-3]10.323.416.5
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)20815249
Maasi (MAS)21015262
Kilpisjärvi (KIL)25715242
Ivalo (IVA)22815178
Muonio (MUO)2687176
Sodankylä (SOD)2867231
Pello (PEL)-7218
Oulujärvi (OUJ)1556100
Mekrijärvi (MEK)1645347
Hankasalmi (HAN)198544
Nurmijärvi (NUR)198545
Tartu (TAR)47434
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2025-04-16 22:17 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2025-04-16 21:40 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 21:36 UTC
Synoptic Period: 2100-2400 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: 2025-04-16 20:54 UTC
ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2025-04-16 20:55 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G4 - Severe
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.

Issue Time: 2025-04-16 19:32 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025-04-16 19:25 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Issue Time: 2025-04-16 19:31 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025-04-16 19:30 UTC
Valid To: 2025-04-17 00:00 UTC
Warning Condition: Persistence
NOAA Scale: G3 or greater
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Issue Time: 2025-04-16 18:53 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4927
Valid From: 2025-04-15 17:05 UTC
Now Valid Until: 2025-04-17 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: 2025-04-16 18:52 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2021
Valid From: 2025-04-15 17:30 UTC
Now Valid Until: 2025-04-17 03:00 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: 2025-04-16 18:52 UTC
EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 574
Valid From: 2025-04-16 13:15 UTC
Now Valid Until: 2025-04-17 00:00 UTC
Warning Condition: Persistence
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: 2025-04-16 18:45 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-04-16 18:38 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: 2025-04-16 18:32 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 18:28 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: 2025-04-16 16:44 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-04-16 16:34 UTC
Synoptic Period: 1500-1800 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: 2025-04-16 15:26 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 15:20 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.

Issue Time: 2025-04-16 14:24 UTC
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2025-04-16 14:18 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Issue Time: 2025-04-16 13:25 UTC
WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2025-04-16 13:25 UTC
Valid To: 2025-04-16 18:00 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Issue Time: 2025-04-16 13:24 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-04-16 13:21 UTC
Synoptic Period: 1200-1500 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: 2025-04-16 13:13 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 13:13 UTC
Synoptic Period: 1200-1500 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: 2025-04-16 13:07 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-04-16 13:15 UTC
Valid To: 2025-04-16 21:00 UTC
Warning Condition: Persistence
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: 2025-04-16 12:39 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4926
Valid From: 2025-04-15 17:05 UTC
Now Valid Until: 2025-04-17 00:00 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: 2025-04-16 12:38 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2020
Valid From: 2025-04-15 17:30 UTC
Now Valid Until: 2025-04-16 21:00 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: 2025-04-16 12:00 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 11:59 UTC
Synoptic Period: 0900-1200 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: 2025-04-16 05:35 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2019
Valid From: 2025-04-15 17:30 UTC
Now Valid Until: 2025-04-16 15:00 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: 2025-04-16 05:35 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4925
Valid From: 2025-04-15 17:05 UTC
Now Valid Until: 2025-04-16 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: 2025-04-16 01:34 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-16 01:30 UTC
Synoptic Period: 0000-0300 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: 2025-04-15 22:29 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-04-15 22:23 UTC
Synoptic Period: 2100-2400 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: 2025-04-15 22:04 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-15 22:00 UTC
Synoptic Period: 2100-2400 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: 2025-04-15 21:13 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2025-04-15 18:59 UTC
Deviation: 68 nT
Station: BOU

Issue Time: 2025-04-15 19:52 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached: 2025-04-15 19:44 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: 2025-04-15 18:59 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-15 18:59 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: 2025-04-15 18:50 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2025-04-15 19:00 UTC
Valid To: 2025-04-16 06:00 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: 2025-04-15 17:32 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2025-04-15 17:32 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.

Issue Time: 2025-04-15 17:31 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-15 17:30 UTC
Valid To: 2025-04-16 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: 2025-04-15 17:29 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-15 17:25 UTC
Synoptic Period: 1500-1800 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: 2025-04-15 17:07 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-15 17:05 UTC
Valid To: 2025-04-16 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: 2025-04-15 16:51 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2025-04-15 17:29 UTC
Valid To: 2025-04-15 17:59 UTC
IP Shock Passage Observed: 2025-04-15 16:42 UTC

Issue Time: 2025-04-15 15:24 UTC
WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day
Apr 16: G3 (Strong) Apr 17: G1 (Minor) Apr 18: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

Issue Time: 2025-04-15 11:16 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3453
Begin Time: 2025-04-05 12:25 UTC
Yesterday Maximum 2MeV Flux: 1464 pfu

Issue Time: 2025-04-14 23:02 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-14 23:01 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: 2025-04-14 23:01 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-14 23:00 UTC
Valid To: 2025-04-15 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: 2025-04-14 08:56 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4922
Valid From: 2025-04-14 00:31 UTC
Now Valid Until: 2025-04-14 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.

Issue Time: 2025-04-14 05:12 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3452
Begin Time: 2025-04-05 12:25 UTC
Yesterday Maximum 2MeV Flux: 1150 pfu

Issue Time: 2025-04-14 04:41 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2025-04-14 04:41 UTC
Valid To: 2025-04-14 09:00 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: 2025-04-14 04:39 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2025-04-14 04:29 UTC
Synoptic Period: 0300-0600 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: 2025-04-14 00:33 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025-04-14 00:31 UTC
Valid To: 2025-04-14 09:00 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 2025-04-16 21:42 from source