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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
15:59------
15:58------
15:579.57428.917.70---
15:568.61422.817.07---
15:559.31421.416.57---
15:548.76419.316.28---
15:5315.03413.511.76---
15:5218.87409.22.02---
15:5118.48410.1-1.06---
15:5017.38411.34.05---
15:4917.38408.66.81---
15:4819.91404.16.40---
15:4720.48401.5-0.0720.5401.5-0.1
15:4617.94404.7-0.1817.9404.7-0.2
15:4515.23410.37.1215.2410.37.1
15:4410.95413.58.4410.9413.58.4
15:438.27409.75.348.3409.75.3
15:4210.73402.74.6710.7402.74.7
15:4112.76403.61.3912.8403.61.4
15:4017.15405.0-3.4817.1405.0-3.5
15:3917.98401.0-7.2918.0401.0-7.3
15:3818.32396.4-3.4518.3396.4-3.4
15:37---3.45---3.5
15:36---5.71---5.7
15:3519.25392.3-7.6419.3392.3-7.6
15:3421.27403.7-6.1721.3403.7-6.2
15:3320.38405.27.1720.4405.27.2
15:3220.89403.45.7320.9403.45.7
15:3123.24401.94.6823.2401.94.7
15:3023.04402.94.1423.0402.94.1
15:2922.36404.03.0022.4404.03.0
15:2821.12405.04.4921.1405.04.5
15:2722.60402.74.9622.6402.75.0
15:2627.27398.64.4827.3398.64.5
15:2526.03401.11.8126.0401.11.8
15:2426.27401.41.4626.3401.41.5
15:2326.05405.30.3926.0405.30.4
15:2228.53400.8-0.0828.5400.8-0.1
15:2128.77401.6-0.6528.8401.6-0.7
15:2023.93402.3-0.3723.9402.3-0.4
15:1925.15404.0-1.1325.1404.0-1.1
15:1821.27404.30.0821.3404.30.1
15:1720.13409.30.0820.1409.30.1
15:1623.54408.3-1.4823.5408.3-1.5
15:1526.17405.6-0.9826.2405.6-1.0
15:1422.77406.4-0.0522.8406.4-0.1
15:1323.24405.90.4723.2405.90.5
15:1225.58402.3-3.0925.6402.3-3.1
15:1123.94399.4-5.9123.9399.4-5.9
15:1022.06398.3-5.8122.1398.3-5.8
15:0920.65397.7-8.4120.6397.7-8.4
15:0822.43399.9-8.4322.4399.9-8.4
15:0723.79399.3-5.1423.8399.3-5.1
15:0622.95400.3-4.5022.9400.3-4.5
15:0518.23399.7-8.2518.2399.7-8.2
15:0418.23--10.6618.2--10.7
15:03---11.08---11.1
15:0219.37398.4-11.7019.4398.4-11.7
15:0115.96399.8-12.8216.0399.8-12.8
15:0017.22398.7-12.7317.2398.7-12.7
14:5916.48399.7-6.2716.5399.7-6.3
14:5818.29399.3-7.1518.3399.3-7.2
14:5720.10396.7-8.2820.1396.7-8.3
14:5619.82393.9-11.5019.8393.9-11.5
14:5519.71393.1-11.8919.7393.1-11.9
14:5420.31393.7-10.7720.3393.7-10.8
14:5320.52393.4-9.4020.5393.4-9.4
14:5218.61394.5-8.6718.6394.5-8.7
14:5118.49396.0-9.6018.5396.0-9.6
14:5018.08392.7-12.2518.1392.7-12.3
14:4919.39390.6-11.8219.4390.6-11.8
14:4816.67390.7-10.6716.7390.7-10.7
14:4718.31394.2-10.7518.3394.2-10.7
14:4618.69396.9-10.0518.7396.9-10.1
14:4518.69399.0-10.7818.7399.0-10.8
14:4419.23401.8-11.2219.2401.8-11.2
14:4316.21398.8-12.6416.2398.8-12.6
14:4216.70400.8-12.7816.7400.8-12.8
14:4118.22402.0-13.2118.2402.0-13.2
14:4018.68401.0-13.3818.7401.0-13.4
14:3917.99403.1-13.2318.0403.1-13.2
14:3815.89404.4-14.4715.9404.4-14.5
14:3716.13402.3-14.9116.1402.3-14.9
14:3616.24401.8-15.0416.2401.8-15.0
14:3515.09402.0-15.2615.1402.0-15.3
14:3413.41405.5-16.6713.4405.5-16.7
14:3312.44402.3-16.5012.4402.3-16.5
14:3214.34400.3-16.7114.3400.3-16.7
14:3114.37400.3-17.0414.4400.3-17.0
14:30---17.36---17.4
14:298.88405.7-17.918.9405.7-17.9
14:2811.16405.0-18.6811.2405.0-18.7
14:2713.23406.6-17.3713.2406.6-17.4
14:2613.93408.1-16.3813.9408.1-16.4
14:2513.17407.9-16.5113.2407.9-16.5
14:2411.88407.4-16.9211.9407.4-16.9
14:2311.00408.9-17.1211.0408.9-17.1
14:229.83410.2-17.789.8410.2-17.8
14:218.13407.9-18.148.1407.9-18.1
14:208.70407.4-18.248.7407.4-18.2
14:1910.63405.4-18.1010.6405.4-18.1
14:1811.76410.7-17.2511.8410.7-17.3
14:1713.21411.3-17.1613.2411.3-17.2
14:1617.00408.6-16.1117.0408.6-16.1
14:1518.09411.5-15.4218.1411.5-15.4
14:1417.77411.8-14.6217.8411.8-14.6
14:1316.20407.4-15.2216.2407.4-15.2
14:1217.83406.4-14.3017.8406.4-14.3
14:1118.52403.1-13.1218.5403.1-13.1
14:1018.45401.2-13.6518.5401.2-13.7
14:0910.90420.1-15.1310.9420.1-15.1
14:0810.46414.5-16.3910.5414.5-16.4
14:079.92407.8-17.779.9407.8-17.8
14:06---17.43---17.4
14:0512.93417.5-17.6312.9417.5-17.6
14:0411.87411.5-17.1011.9411.5-17.1
14:037.11387.3-17.247.1387.3-17.2
14:026.85404.3-18.146.8404.3-18.1
14:019.37412.1-18.149.4412.1-18.1
14:007.69417.5-17.967.7417.5-18.0
Built 2024-05-02 16:00 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-12.87.2-4.6
velocity [km/s]390.6409.3400.1
density [cm-3]10.728.820.7
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)19429190
Maasi (MAS)22726184
Kilpisjärvi (KIL)26225189
Ivalo (IVA)21717184
Muonio (MUO)25617157
Sodankylä (SOD)27614161
Pello (PEL)-12165
Oulujärvi (OUJ)31510105
Mekrijärvi (MEK)334746
Hankasalmi (HAN)368758
Nurmijärvi (NUR)217855
Tartu (TAR)32643
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2024-05-02 15:47 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2024-05-02 14:50 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-05-02 14:48 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: 2024-05-02 14:50 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024-05-02 14:50 UTC
Valid To: 2024-05-02 21:00 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: 2024-05-02 14:22 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-05-02 14:22 UTC
Synoptic Period: 1200-1500 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: 2024-05-02 14:22 UTC
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024-05-02 14:12 UTC
Deviation: 29 nT
Station: HAD

Issue Time: 2024-05-02 13:51 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-05-02 13:55 UTC
Valid To: 2024-05-02 21:00 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: 2024-05-02 13:32 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-05-02 13:35 UTC
Valid To: 2024-05-03 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: 2024-05-02 13:29 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024-05-02 14:04 UTC
Valid To: 2024-05-02 14:34 UTC
IP Shock Passage Observed: 2024-05-02 13:17 UTC

Issue Time: 2024-05-01 02:26 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4599
Valid From: 2024-04-30 22:42 UTC
Now Valid Until: 2024-05-01 09:00 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: 2024-05-01 00:04 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2024-04-30 23:23 UTC
Maximum Time: 2024-04-30 23:46 UTC
End Time: 2024-04-30 23:58 UTC
X-ray Class: M9.5
Optical Class: 2b
Location: S07W63
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2024-04-30 23:55 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2024-04-30 23:42 UTC
Maximum Time: 2024-04-30 23:43 UTC
End Time: 2024-04-30 23:45 UTC
Duration: 3 minutes
Peak Flux: 270 sfu
Latest Penticton Noon Flux: 130 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

Issue Time: 2024-04-30 23:49 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024-04-30 23:43 UTC
NOAA Scale: R2 - Moderate

Issue Time: 2024-04-30 23:33 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-04-30 23:32 UTC
Valid To: 2024-05-01 03:00 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: 2024-04-30 23:16 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-04-30 23:15 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
Comment: Conditions were likely first reached at approximately 30/1955 UTC. However, a major network outage prevented alert issuance.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2024-04-30 22:43 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-04-30 22:42 UTC
Valid To: 2024-05-01 03:00 UTC
Warning Condition: Persistence
Comment: Conditions were likely first reached at approximately 30/1642 UTC. However, a major network outage prevented warning issuance.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Issue Time: 2024-04-30 16:42 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-04-30 16:42 UTC
Valid To: 2024-04-30 23:59 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 2024-05-02 14:52 from source