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Time
UTC		DSCOVRACE
Solar WindGSMSolar WindGSM
Proton DensityBulk SpeedBzProton DensityBulk SpeedBz
20:04------
20:03------
20:02------
20:0120.52477.4----
20:0019.35478.11.00---
19:5913.57463.61.10---
19:5810.80440.10.92---
19:5723.52477.00.85---
19:5618.59481.11.08---
19:5516.61476.81.33---
19:545.81440.21.11---
19:5317.05466.31.08---
19:5216.69462.21.31---
19:5116.64461.81.83---
19:50--0.20---
19:49---2.83---
19:4811.00468.1-2.75---
19:4714.93473.1-2.7114.9473.1-2.7
19:4616.26481.4-2.7216.3481.4-2.7
19:459.77469.5-3.259.8469.5-3.2
19:442.17449.3-3.337.9460.5-3.3
19:4315.08478.4-3.3315.1478.4-3.3
19:4214.51480.0-3.1114.5480.0-3.1
19:4110.90477.5-2.6110.9477.5-2.6
19:406.33449.6-2.286.3449.6-2.3
19:3913.05476.8-2.6913.0476.8-2.7
19:3812.95472.0-2.7213.0472.0-2.7
19:3712.07496.4-2.7512.1496.4-2.8
19:366.79436.9-2.376.8436.9-2.4
19:3513.13471.3-2.4813.1471.3-2.5
19:3413.49467.8-2.5213.5467.8-2.5
19:3312.84470.9-2.1612.8470.9-2.2
19:326.69451.4-1.986.7451.4-2.0
19:319.00458.2-1.459.0458.2-1.5
19:3015.90473.4-1.6815.9473.4-1.7
19:2917.81475.5-2.1017.8475.5-2.1
19:2813.21466.6-2.2113.2466.6-2.2
19:275.13451.5-2.0610.1457.5-2.1
19:2614.83468.4-1.7014.8468.4-1.7
19:2513.80465.8-1.2613.8465.8-1.3
19:2419.03477.6-0.6119.0477.6-0.6
19:2311.84455.40.1311.8455.40.1
19:2214.31465.80.8114.3465.80.8
19:2115.75467.61.1415.8467.61.1
19:2019.41470.6-0.1319.4470.6-0.1
19:1917.76471.61.0417.8471.61.0
19:186.59441.41.386.6441.41.4
19:1719.12462.82.2819.1462.82.3
19:1625.25474.62.4525.3474.62.5
19:157.48448.92.437.5448.92.4
19:146.13438.6-6.1438.6-
19:1312.24447.62.6512.2447.62.6
19:1219.90471.02.1019.9471.02.1
19:1116.93473.51.5016.9473.51.5
19:1012.34464.93.1512.3464.93.1
19:092.95428.22.916.4436.12.9
19:0818.82471.22.0918.8471.22.1
19:0717.31470.82.2717.3470.82.3
19:0613.91462.11.9713.9462.12.0
19:054.71429.71.664.7429.71.7
19:0414.56469.71.1914.6469.71.2
19:0316.91469.90.6616.9469.90.7
19:0213.96463.20.6414.0463.20.6
19:017.44438.60.447.4438.60.4
19:009.24452.71.039.2452.71.0
18:5911.41465.1-0.8411.4465.1-0.8
18:5815.55473.61.4915.6473.61.5
18:5710.08460.22.1710.1460.22.2
18:567.29448.41.437.3448.41.4
18:5511.24461.11.7411.2461.11.7
18:5412.82463.81.8212.8463.81.8
18:5314.60467.31.6114.6467.31.6
18:5215.73469.51.4415.7469.51.4
18:518.04454.71.758.0454.71.7
18:5011.60459.51.8411.6459.51.8
18:4918.07472.11.7918.1472.11.8
18:4816.89471.71.5716.9471.71.6
18:475.49446.71.615.5446.71.6
18:4610.63460.71.8010.6460.71.8
18:45--1.58--1.6
18:44--1.85--1.9
18:43--1.97--2.0
18:4210.72459.12.1310.7459.12.1
18:4113.16464.72.1813.2464.72.2
18:4012.93465.42.6612.9465.42.7
18:397.02449.82.627.0449.82.6
18:387.43444.42.147.4444.42.1
18:3713.90471.02.8613.9471.02.9
18:3615.34492.03.0215.3492.03.0
18:35--2.89--2.9
18:34--3.87--3.9
18:336.28465.05.126.3465.05.1
18:326.86463.84.876.9463.84.9
18:316.78463.54.806.8463.54.8
18:306.71464.54.906.7464.54.9
18:296.70464.84.356.7464.84.3
18:287.36465.74.757.4465.74.7
18:277.45465.94.637.5465.94.6
18:267.96468.74.558.0468.74.6
18:259.05467.84.339.1467.84.3
18:249.21464.54.629.2464.54.6
18:238.62465.65.018.6465.65.0
18:229.16464.54.979.2464.55.0
18:218.97464.34.649.0464.34.6
18:208.35463.14.288.3463.14.3
18:198.05461.44.068.1461.44.1
18:187.47459.35.637.5459.35.6
18:177.35461.85.527.4461.85.5
18:167.33465.65.377.3465.65.4
18:157.32465.95.557.3465.95.5
18:14--5.32--5.3
18:136.75462.75.516.7462.75.5
18:126.89462.65.156.9462.65.1
18:116.11457.35.026.1457.35.0
18:105.50453.45.385.5453.45.4
18:095.11457.05.865.1457.05.9
18:085.18455.45.685.2455.45.7
18:074.91453.95.274.9453.95.3
18:064.43456.95.264.4456.95.3
18:055.21458.45.305.2458.45.3
Built 2026-04-26 20:05 from source
Solar wind parameters of the latest hour by NOAA
parameterminmaxmean
IMF Bz [nT]-3.33.1-0.3
velocity [km/s]428.2496.4464.0
density [cm-3]2.225.213.1
Geomagnetic activity (RX [nT])
sitelatest hournext hour (RXmin, RXmax)
Kevo (KEV)2212321
Maasi (MAS)2311318
Kilpisjärvi (KIL)1010321
Ivalo (IVA)187264
Muonio (MUO)97242
Sodankylä (SOD)116221
Pello (PEL)196217
Oulujärvi (OUJ)28587
Mekrijärvi (MEK)25335
Hankasalmi (HAN)21444
Nurmijärvi (NUR)33441
Tartu (TAR)30330
low increasedmoderate high very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)
Built 2026-04-26 20:02 from source
NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR
Issue Time: 2026-04-26 11:47 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5328
Valid From: 2026-04-26 03:59 UTC
Now Valid Until: 2026-04-26 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: 2026-04-26 06:01 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-04-26 03:59 UTC
Valid To: 2026-04-26 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: 2026-04-26 05:59 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026-04-26 05:59 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: 2026-04-25 01:37 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026-04-25 01:37 UTC
Valid To: 2026-04-25 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.

Issue Time: 2026-04-24 23:50 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day
Apr 25: G1 (Minor) Apr 26: G1 (Minor) Apr 27: 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: 2026-04-24 18:35 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2026-04-24 17:54 UTC
Maximum Time: 2026-04-24 18:15 UTC
End Time: 2026-04-24 18:30 UTC
X-ray Class: M6.4
Location: N19W90
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2026-04-24 18:12 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-04-24 18:12 UTC
NOAA Scale: R2 - Moderate

Issue Time: 2026-04-24 10:41 UTC
ALERT: Type IV Radio Emission
Begin Time: 2026-04-24 08:40 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: 2026-04-24 09:28 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-24 08:15 UTC
Estimated Velocity: 1293 km/s
Comment: Reissued with adjusted shock speed.
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: 2026-04-24 09:27 UTC
CANCEL ALERT: Type II Radio Emission
Cancel Serial Number: 1477
Original Issue Time: 2026-04-24 08:57 UTC
Comment: Reissuing with corrected shock speed.
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: 2026-04-24 08:57 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-24 08:15 UTC
Estimated Velocity: 1869 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: 2026-04-24 08:38 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-24 08:09 UTC
Maximum Time: 2026-04-24 08:11 UTC
End Time: 2026-04-24 08:15 UTC
Duration: 6 minutes
Peak Flux: 570 sfu
Latest Penticton Noon Flux: 128 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: 2026-04-24 08:26 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026-04-24 08:01 UTC
Maximum Time: 2026-04-24 08:13 UTC
End Time: 2026-04-24 08:18 UTC
X-ray Class: X2.5
Optical Class: 2b
Location: N20W90
NOAA Scale: R3 - Strong
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2026-04-24 08:12 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-04-24 08:12 UTC
NOAA Scale: R2 - Moderate

Issue Time: 2026-04-24 05:05 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3683
Begin Time: 2026-04-19 19:20 UTC
Yesterday Maximum 2MeV Flux: 3446 pfu

Issue Time: 2026-04-24 01:31 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026-04-24 00:51 UTC
Maximum Time: 2026-04-24 01:07 UTC
End Time: 2026-04-24 01:13 UTC
X-ray Class: X2.4
Location: N17W71
NOAA Scale: R3 - Strong
Comment: Accompanied by a tenflare with a castelli-U signature. No radio observations currently available.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

Issue Time: 2026-04-24 01:29 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-24 01:03 UTC
Maximum Time: 2026-04-24 01:04 UTC
End Time: 2026-04-24 01:09 UTC
Duration: 6 minutes
Peak Flux: 570 sfu
Latest Penticton Noon Flux: 128 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: 2026-04-24 01:08 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-04-24 01:05 UTC
NOAA Scale: R2 - Moderate

Issue Time: 2026-04-23 17:23 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-23 17:03 UTC
Maximum Time: 2026-04-23 17:05 UTC
End Time: 2026-04-23 17:07 UTC
Duration: 4 minutes
Peak Flux: 220 sfu
Latest Penticton Noon Flux: 116 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: 2026-04-23 14:52 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-23 13:55 UTC
Maximum Time: 2026-04-23 13:56 UTC
End Time: 2026-04-23 13:57 UTC
Duration: 2 minutes
Peak Flux: 170 sfu
Latest Penticton Noon Flux: 116 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.

Built 2026-04-26 11:49 from source