Monitoring

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Time UTC	DSCOVR			ACE
	Solar Wind		GSM	Solar Wind		GSM
	Proton Density	Bulk Speed	Bz	Proton Density	Bulk Speed	Bz
20:53	-	-	-	-	-	-
20:52	-	-	-	-	-	-
20:51	-	-	2.37	-	-	-
20:50	4.08	444.4	2.55	-	-	-
20:49	3.96	445.5	2.51	-	-	-
20:48	3.06	431.0	2.38	-	-	-
20:47	2.39	412.2	2.30	2.4	412.2	2.3
20:46	3.59	433.8	1.99	3.6	433.8	2.0
20:45	3.98	437.9	1.81	4.0	437.9	1.8
20:44	3.96	442.3	1.73	4.0	442.3	1.7
20:43	2.46	422.8	1.74	2.5	422.7	1.7
20:42	3.53	438.3	1.41	3.2	435.8	1.4
20:41	3.53	-	1.47	3.3	436.5	1.5
20:40	5.19	459.5	1.65	5.2	459.5	1.6
20:39	5.40	462.0	1.03	5.4	462.0	1.0
20:38	3.28	429.0	1.00	3.3	429.0	1.0
20:37	4.02	440.7	0.76	4.0	440.7	0.8
20:36	3.94	451.6	0.53	3.9	451.6	0.5
20:35	3.62	448.2	1.16	3.6	448.2	1.2
20:34	3.30	432.3	2.18	3.3	432.3	2.2
20:33	3.38	431.2	2.11	3.4	431.2	2.1
20:32	3.85	447.4	1.96	3.8	447.4	2.0
20:31	3.89	451.9	1.76	3.9	451.9	1.8
20:30	3.55	441.1	1.10	3.6	441.1	1.1
20:29	2.81	424.7	0.62	2.9	426.5	0.6
20:28	3.22	440.2	1.14	3.9	451.0	1.1
20:27	3.72	449.4	1.70	3.7	449.4	1.7
20:26	3.57	455.1	1.30	3.6	455.1	1.3
20:25	2.83	413.3	1.30	2.8	413.3	1.3
20:24	3.76	443.1	1.15	3.8	443.1	1.2
20:23	3.89	447.5	0.88	3.9	447.5	0.9
20:22	4.01	454.7	0.63	4.0	454.7	0.6
20:21	2.86	425.4	0.35	2.9	425.4	0.3
20:20	3.40	435.3	0.21	3.4	435.3	0.2
20:19	4.24	451.2	0.18	4.2	451.2	0.2
20:18	4.14	452.5	0.09	4.1	452.5	0.1
20:17	3.32	439.7	-0.10	3.3	439.7	-0.1
20:16	3.03	433.7	-0.41	3.0	433.7	-0.4
20:15	3.88	452.9	-	3.9	452.9	-
20:14	4.14	456.4	-	4.1	456.4	-
20:13	3.88	451.8	0.44	3.9	451.8	0.4
20:12	3.17	429.7	1.06	3.2	429.7	1.1
20:11	4.45	452.4	1.27	4.4	452.1	1.3
20:10	3.95	453.7	2.21	3.8	444.1	2.2
20:09	3.75	455.3	2.33	3.8	455.3	2.3
20:08	3.62	459.5	1.89	3.6	459.5	1.9
20:07	3.70	399.9	1.87	3.7	399.9	1.9
20:06	3.72	387.9	2.04	3.7	387.9	2.0
20:05	4.67	455.7	1.55	4.7	455.7	1.5
20:04	4.12	461.8	0.24	4.1	461.8	0.2
20:03	3.42	443.1	-0.09	3.4	443.1	-0.1
20:02	3.63	443.8	0.64	3.6	443.8	0.6
20:01	4.12	456.7	0.87	4.1	456.7	0.9
20:00	4.00	454.2	0.01	4.0	454.2	0.0
19:59	3.60	446.5	0.04	3.7	454.8	-
19:58	3.36	422.3	0.18	3.7	443.6	0.2
19:57	4.21	451.8	0.41	4.2	451.8	0.4
19:56	3.88	452.0	0.79	3.9	452.0	0.8
19:55	3.47	453.0	1.00	3.5	454.0	1.0
19:54	2.88	400.9	1.34	3.1	433.6	1.3
19:53	3.89	452.5	1.30	3.9	453.6	1.3
19:52	3.88	453.4	1.32	3.9	453.4	1.3
19:51	3.63	455.9	1.24	3.6	455.9	1.2
19:50	3.53	414.5	1.35	3.5	414.5	1.3
19:49	3.65	432.6	1.34	3.7	432.6	1.3
19:48	3.87	445.1	1.68	3.9	445.1	1.7
19:47	3.85	450.5	1.38	3.8	450.5	1.4
19:46	3.65	440.3	1.31	3.7	440.3	1.3
19:45	4.00	438.1	1.19	4.0	438.1	1.2
19:44	4.38	450.3	1.14	4.4	450.3	1.1
19:43	4.04	444.5	0.39	4.0	444.3	0.4
19:42	4.11	447.3	-0.01	4.1	445.9	-0.0
19:41	4.42	445.7	0.13	4.4	445.7	0.1
19:40	4.54	452.7	0.66	4.5	452.7	0.7
19:39	4.31	447.7	0.58	4.3	447.7	0.6
19:38	3.98	445.4	0.49	4.0	445.4	0.5
19:37	4.51	452.7	0.22	4.5	452.7	0.2
19:36	2.92	430.9	0.47	2.9	430.9	0.5
19:35	3.51	440.2	0.66	3.5	440.2	0.7
19:34	4.94	467.1	0.94	4.9	467.1	0.9
19:33	5.32	474.6	1.17	5.3	474.6	1.2
19:32	3.53	430.6	1.15	3.5	430.6	1.2
19:31	3.67	435.0	1.17	3.7	435.0	1.2
19:30	3.92	447.9	-	3.9	447.9	-
19:29	4.01	458.0	-	4.0	458.0	-
19:28	3.60	441.7	0.89	3.6	441.7	0.9
19:27	3.37	422.8	0.75	3.1	421.2	0.8
19:26	4.19	447.9	0.65	3.4	443.8	0.6
19:25	3.36	449.1	0.72	4.1	450.8	0.7
19:24	4.04	456.1	0.63	4.0	456.1	0.6
19:23	3.12	427.7	1.01	3.1	427.7	1.0
19:22	4.83	454.4	1.03	4.8	454.4	1.0
19:21	4.78	459.3	-1.51	4.8	459.3	-1.5
19:20	4.45	463.0	-1.11	4.4	463.0	-1.1
19:19	3.13	422.8	-	3.1	422.8	-
19:18	4.42	449.2	-	4.4	449.2	-
19:17	4.78	454.4	-	4.8	454.4	-
19:16	4.84	451.7	0.60	4.8	451.7	0.6
19:15	4.45	443.2	0.14	4.5	443.2	0.1
19:14	4.34	442.8	0.04	4.3	442.8	0.0
19:13	4.51	448.4	0.11	4.5	448.4	0.1
19:12	4.55	451.5	-0.25	4.6	451.5	-0.3
19:11	4.62	450.7	-0.75	4.6	450.7	-0.7
19:10	4.08	434.6	-0.66	4.1	434.6	-0.7
19:09	3.67	436.6	-1.29	3.7	436.6	-1.3
19:08	4.67	446.5	-1.15	4.7	446.5	-1.2
19:07	4.65	445.7	-1.46	4.6	445.7	-1.5
19:06	4.30	442.8	-1.24	4.3	443.2	-1.2
19:05	4.30	-	-1.59	2.2	420.5	-1.6
19:04	5.32	451.6	-1.14	5.3	451.6	-1.1
19:03	4.39	444.0	-1.67	4.4	444.0	-1.7
19:02	4.89	451.2	-1.84	4.9	451.2	-1.8
19:01	4.26	441.0	-2.13	4.3	441.0	-2.1
19:00	3.89	435.4	-2.54	3.9	435.4	-2.5
18:59	-	-	-2.94	-	-	-2.9
18:58	4.99	458.2	-1.53	5.0	458.2	-1.5
18:57	4.00	442.3	-2.05	4.0	442.3	-2.0
18:56	3.70	433.0	-2.92	3.7	433.0	-2.9
18:55	4.98	462.0	0.05	5.0	462.0	0.1
18:54	4.59	465.3	0.80	4.6	465.3	0.8

Built 2026-04-27 20:54 from source

Solar wind parameters of the latest hour by NOAA
parameter	min	max	mean
IMF Bz [nT]	-0.4	2.3	1.1
velocity [km/s]	387.9	462.0	442.7
density [cm^-3]	2.8	5.4	3.7

Geomagnetic activity (RX [nT])
site	latest hour	next hour (RXmin, RXmax)

Kevo (KEV)	59	3	146
Maasi (MAS)	41	3	138
Kilpisjärvi (KIL)	33	3	135
Ivalo (IVA)	24	2	106
Muonio (MUO)	19	2	106
Sodankylä (SOD)	12	2	92
Pello (PEL)	13	3	87
Oulujärvi (OUJ)	11	2	34
Mekrijärvi (MEK)	8	1	15
Hankasalmi (HAN)	7	2	24
Nurmijärvi (NUR)	10	2	22
Tartu (TAR)	8	2	18

low	increased	moderate	high	very high

Short explanation of the method

Data and licenses

AurorasNow! (Finnish Meteorological Institute)

Built 2026-04-27 20:47 from source

NAL | LYR | HOP | BJN | NOR | SOR | TRO | KEV | KIL | MEK | HAN | NUR | TAR

Issue Time: 2026-04-27 01:06 UTC
ALERT: Type II Radio Emission
Begin Time: 2026-04-26 22:57 UTC
Estimated Velocity: 834 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: 2026-04-26 23:33 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5329
Valid From: 2026-04-26 03:59 UTC
Now Valid Until: 2026-04-27 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: 2026-04-26 23:17 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2026-04-26 22:51 UTC
Maximum Time: 2026-04-26 22:57 UTC
End Time: 2026-04-26 23:02 UTC
X-ray Class: M6.0
Location: N21W33
NOAA Scale: R2 - Moderate
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Issue Time: 2026-04-26 23:08 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026-04-26 22:56 UTC
Maximum Time: 2026-04-26 22:57 UTC
End Time: 2026-04-26 22:58 UTC
Duration: 1 minutes
Peak Flux: 260 sfu
Latest Penticton Noon Flux: 148 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: 2026-04-26 23:00 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026-04-26 22:57 UTC
NOAA Scale: R2 - Moderate

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

Built 2026-04-27 16:34 from source