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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
12:25------
12:24------
12:23---4.27---
12:22---4.76---
12:2110.28399.2-5.86---
12:2011.16402.0-3.38---
12:1911.54402.1-4.84---
12:1811.41401.7-3.18---
12:1711.55401.7-4.83---
12:1611.59403.8-4.79---
12:1511.65405.3-5.47---
12:1411.44405.5-5.18---
12:1311.53405.4-3.45---
12:1211.98416.6-6.08---
12:1112.53406.5-4.99---
12:1011.97404.1-5.42---
12:0911.15404.6-6.08---
12:0811.41413.50.727.4420.2-
12:0711.16425.05.3811.2424.90.5
12:0610.81422.95.728.2414.10.2
12:0510.40420.95.784.7405.91.8
12:0410.43421.85.695.6411.2-3.7
12:0310.48421.14.3910.1421.4-4.3
12:0210.59421.13.988.8417.3-5.5
12:0110.49420.44.007.0415.2-5.5
12:0010.91420.43.668.2419.5-5.8
11:5910.89419.54.348.7424.4-6.9
11:5812.84419.34.057.6423.1-7.0
11:5713.78418.03.746.5409.6-6.9
11:5613.57418.24.305.6404.6-9.3
11:5512.92418.94.016.3426.2-9.1
11:5413.07416.71.285.5431.5-9.3
11:5312.53417.9-1.335.6414.9-9.4
11:5212.12418.6-5.157.6392.7-8.9
11:5112.55420.0-4.264.8420.6-8.8
11:5012.74418.9-4.596.8419.5-8.1
11:4912.69423.5-4.905.6391.1-5.2
11:4813.03418.5-7.195.5399.1-4.4
11:4711.51415.9-5.915.0397.6-6.0
11:4610.99418.2-2.344.8394.7-6.8
11:4510.89418.9-5.575.1416.6-6.5
11:4411.33423.4-4.894.6397.9-5.9
11:4310.49417.9-6.904.3387.5-6.1
11:4210.54414.9-7.544.5403.5-5.4
11:419.49416.0-4.984.3405.6-6.3
11:4010.43419.8-8.634.0397.3-6.6
11:3911.29419.8-7.233.4392.6-6.2
11:3810.15414.3-8.433.5397.4-6.4
11:379.18408.0-10.174.2399.2-6.6
11:3610.43416.4-9.013.9399.2-6.0
11:3510.59419.7-9.874.1398.4-5.8
11:349.10416.5-9.954.4405.6-5.3
11:338.85416.0-10.265.1408.3-6.0
11:328.54418.0-9.254.9413.4-6.1
11:318.79417.2-8.205.1412.1-6.1
11:309.32413.8-8.535.2406.8-6.3
11:299.30409.7-8.714.7406.7-5.2
11:288.57405.5-7.835.1411.4-5.5
11:277.92404.6-8.416.5418.7-5.6
11:268.16403.6-8.046.3419.2-5.7
11:259.00404.2-8.034.7410.4-5.7
11:248.70404.8-7.995.6417.4-5.4
11:238.91405.0-8.225.9423.6-6.7
11:229.42406.5-7.795.6426.3-6.1
11:2111.37418.0-6.855.1399.9-7.4
11:2010.87416.4-6.754.1391.4-6.5
11:199.48419.8-7.336.5413.1-7.4
11:187.53405.8-7.715.5419.7-6.0
11:176.70402.7-7.245.2425.7-7.2
11:169.10422.3-7.035.5399.6-7.0
11:159.84422.0-7.565.9410.5-6.8
11:1410.08417.8-6.53---6.4
11:1310.46408.4-6.61---5.4
11:1210.75416.3-7.765.2414.1-5.1
11:1110.16414.0-9.575.0411.5-5.6
11:1010.45413.2-8.775.1407.9-6.1
11:0910.53417.5-8.395.4408.7-2.8
11:0810.19414.5-6.563.6407.9-6.1
11:0710.27412.8-6.612.6401.3-8.1
11:069.82414.9-7.822.3403.6-8.7
11:059.85418.6-8.362.6414.7-9.0
11:049.91419.8-7.903.5437.0-10.3
11:039.50415.7-7.463.4427.5-10.4
11:029.29415.6-7.133.3420.9-9.6
11:019.31415.3-6.775.2429.1-6.3
11:009.15418.5-6.016.4434.0-3.8
10:599.50414.6-8.078.2440.6-3.9
10:589.43417.0-4.215.9416.8-3.2
10:578.67417.6-4.573.7407.7-0.6
10:567.66413.0-7.164.4418.0-6.1
10:556.89410.4-8.824.7427.4-10.6
10:545.84428.8-9.415.5419.0-9.4
10:535.87429.5-10.466.9396.3-9.5
10:524.92419.1-11.353.6414.4-7.7
10:515.41425.5-11.057.8434.6-9.2
10:507.87439.3-9.877.6454.9-9.4
10:498.24439.1-9.018.2434.1-7.0
10:488.61433.4-6.394.5420.9-8.6
10:4712.45429.7-0.863.8421.2-9.6
10:4610.88421.3-7.863.2415.8-10.5
10:4510.38420.4-8.397.4412.6-12.1
10:449.96418.9-8.575.5393.3-8.1
10:4310.20421.9-7.014.2388.82.4
10:429.47423.8-5.925.0394.38.1
10:418.70416.2-6.20--7.9
10:408.27412.6-5.54--5.8
10:398.80416.8-6.290.9387.14.6
10:388.27419.3-5.151.2394.14.8
10:379.33427.4-6.181.6404.05.2
10:369.22428.8-6.001.5396.04.2
10:359.44428.9-6.881.7395.21.2
10:349.05426.2-6.761.5393.10.5
10:339.18424.2-6.791.5392.30.1
10:328.61420.7-6.701.4394.0-1.0
10:318.32420.9-6.800.9392.1-1.4
10:308.07417.1-6.611.0389.2-2.1
10:298.14421.5-6.400.8392.1-3.2
10:288.72416.5-5.171.0388.2-4.5
10:2711.54404.8-2.821.7385.2-4.9
10:2611.11397.71.062.3389.4-3.7
Built 2024-04-19 12:26 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-10.35.8-4.3
velocity [km/s]402.7425.0415.5
density [cm-3]6.713.810.6
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)12513164
Maasi (MAS)14512167
Kilpisjärvi (KIL)16512157
Ivalo (IVA)13612170
Muonio (MUO)15611147
Sodankylä (SOD)15310135
Pello (PEL)1369107
Oulujärvi (OUJ)99785
Mekrijärvi (MEK)67674
Hankasalmi (HAN)65659
Nurmijärvi (NUR)64664
Tartu (TAR)47547
low increasedmoderate high very high

Short explanation of the method

AurorasNow! (Finnish Meteorological Institute)
Built 2024-04-19 12:17 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2024-04-19 09:00 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-04-19 09:00 UTC
Valid To: 2024-04-19 15:00 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: 2024-04-19 07:50 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024-04-19 07:45 UTC
Synoptic Period: 0600-0900 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: 2024-04-19 06:48 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024-04-19 06:50 UTC
Valid To: 2024-04-19 18:00 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: 2024-04-16 23:09 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024-04-16 23:09 UTC
Valid To: 2024-04-17 03:00 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: 2024-04-16 22:55 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1864
Valid From: 2024-04-16 19:09 UTC
Now Valid Until: 2024-04-17 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: 2024-04-16 22:54 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4587
Valid From: 2024-04-15 23:06 UTC
Now Valid Until: 2024-04-17 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: 2024-04-16 22:45 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-04-16 22:39 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: 2024-04-16 21:23 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Apr 17: None (Below G1) Apr 18: G1 (Minor) Apr 19: None (Below G1)
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: 2024-04-16 19:12 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024-04-16 19:10 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: 2024-04-16 19:09 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-04-16 19:09 UTC
Valid To: 2024-04-16 23:59 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: 2024-04-16 14:24 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4586
Valid From: 2024-04-15 23:06 UTC
Now Valid Until: 2024-04-16 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: 2024-04-16 11:08 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024-04-16 11:08 UTC
Valid To: 2024-04-16 15:00 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.

Built 2024-04-19 09:02 from source