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##Quelle: https://services.swpc.noaa.gov/products/alerts.json
Zeitraum: 1 Monat ( 23.May.2026 20:00 UTC - 21.Jun.2026 19:51 )
21.Jun.2026 19:51 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 21 1932 UTC
Estimate Velocity: 380 km/s
Comment:
· ·
21.Jun.2026 19:48 UTC · SUMMARY: X-ray Event exceeded M5
Begin Time: 2026 Jun 21 1917 UTC
Maximum Time: 2026 Jun 21 1929 UTC
End Time: 2026 Jun 22 1935 UTC
Xray Class: M6.8
Optical Class: 2b
Location: S07E55
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
21.Jun.2026 19:30 UTC · ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Jun 21 1927 UTC
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
20.Jun.2026 04:07 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 20 0407 UTC
Estimate Velocity: 300 km/s
Comment:
· ·
20.Jun.2026 04:06 UTC · CANCEL ALERT: Type II Radio Emission
Cancel Serial Number: 1504
Original Issue Time: 2026 Jun 20 0403 UTC
Cancelling duplicate Type-II Alert
Cancelling duplicate Type-II Alert · ·
20.Jun.2026 04:03 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 20 0300 UTC
Estimate Velocity: 300 km/s
Comment:
· ·
20.Jun.2026 04:03 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 20 0300 UTC
Estimate Velocity: 300 km/s
Comment:
· ·
20.Jun.2026 04:03 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 20 0300 UTC
Estimate Velocity: 300 km/s
Comment:
· ·
18.Jun.2026 15:07 UTC · ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026 Jun 18 1507 UTC
Station: GOES-19
Comment:
· ·
16.Jun.2026 11:24 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3701
Begin Time: 2026 Jun 13 1332 UTC
Yesterday Maximum 2MeV Flux: 1489 pfu
· ·
15.Jun.2026 12:35 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3700
Begin Time: 2026 Jun 13 1332 UTC
Yesterday Maximum 2MeV Flux: 1581 pfu
· ·
14.Jun.2026 13:28 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3699
Begin Time: 2026 Jun 13 1332 UTC
Yesterday Maximum 2MeV Flux: 1520 pfu
· ·
13.Jun.2026 23:56 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5364
Valid From: 2026 Jun 13 0126 UTC
Now Valid Until: 2026 Jun 14 0600 UTC
Warning Condition: Persistence
· · NOAA Space Weather Scale descriptions can be found at
13.Jun.2026 21:01 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 Jun 13 2059 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
13.Jun.2026 13:33 UTC · ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026 Jun 13 1332 UTC
Station: GOES-19
Comment:
· ·
13.Jun.2026 01:27 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 13 0126 UTC
Valid To: 2026 Jun 13 2359 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
11.Jun.2026 20:40 UTC · ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026 Jun 11 2040 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
11.Jun.2026 20:29 UTC · WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Jun 12: G1 (Minor) Jun 13: G2 (Moderate) Jun 14: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment:
· NOAA Space Weather Scale descriptions can be found at
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
11.Jun.2026 20:15 UTC · WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026 Jun 11 2014 UTC
Valid To: 2026 Jun 12 0300 UTC
Warning Conditions: Onset
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
11.Jun.2026 18:57 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 Jun 11 1855 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
11.Jun.2026 18:49 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 11 1849 UTC
Valid To: 2026 Jun 12 2359 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
11.Jun.2026 00:40 UTC · ALERT: Type IV Radio Emission
Begin Time: 2026 Jun 11 0028 UTC
Comment:
· ·
11.Jun.2026 00:40 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 11 0013 UTC
Estimate Velocity: 918 km/s
Comment:
· ·
10.Jun.2026 17:38 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 10 1715 UTC
Estimate Velocity: 1127 km/s
Comment:
· ·
09.Jun.2026 20:22 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 09 2020 UTC
Valid To: 2026 Jun 09 2359 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
09.Jun.2026 16:29 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 09 1557 UTC
Estimate Velocity: 917 km/s
Comment: SVI: 482 km/s; SAG: 917 km/s (closer station to the subsolar point. Report came later)
SVI: 482 km/s; SAG: 917 km/s (closer station to the subsolar point. Report came later) · ·
09.Jun.2026 16:25 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 09 1557 UTC
Estimate Velocity: 482 km/s
Comment:
· ·
09.Jun.2026 16:24 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 09 1557 UTC
Estimate Velocity: 482 km/s
Comment:
· ·
09.Jun.2026 16:24 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 09 1557 UTC
Estimate Velocity: 482 km/s
Comment:
· ·
09.Jun.2026 11:41 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3697
Begin Time: 2026 Jun 07 1143 UTC
Yesterday Maximum 2MeV Flux: 1315 pfu
· ·
08.Jun.2026 05:16 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3696
Begin Time: 2026 Jun 07 1143 UTC
Yesterday Maximum 2MeV Flux: 2874 pfu
· ·
07.Jun.2026 11:46 UTC · ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026 Jun 07 1143 UTC
Station: GOES-18
Comment: Yesterday's max: 1284 pfu
Yesterday's max: 1284 pfu · ·
06.Jun.2026 22:11 UTC · WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day:
Jun 07: None (Below G1) Jun 08: G3 (Strong) Jun 09: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment:
·
06.Jun.2026 16:55 UTC · ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2026 Jun 06 1640 UTC
Station: GOES-19
Comment: Yesterday's max: 536 pfu
Yesterday's max: 536 pfu · ·
06.Jun.2026 14:15 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 06 1347 UTC
Estimate Velocity: 838 km/s
Comment:
· ·
06.Jun.2026 14:14 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 06 1344 UTC
Maximum Time: 2026 Jun 06 1344 UTC
End Time: 2026 Jun 06 1359 UTC
Peak Flux: 190 sfu
Duration: 5 minutes
Latest Penticton Noon Flux: 141 sfu
Comment:
· ·
06.Jun.2026 04:35 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5360
Valid From: 2026 Jun 05 0434 UTC
Now Valid Until: 2026 Jun 06 1800 UTC
Warning Condition: Persistence
· · NOAA Space Weather Scale descriptions can be found at
06.Jun.2026 04:35 UTC · EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2239
Valid From: 2026 Jun 05 1228 UTC
Now Valid Until: 2026 Jun 06 1500 UTC
Warning Condition: Persistence
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 23:25 UTC · ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026 Jun 05 2324 UTC
Synoptic Period: 2100-2400
Active Warning: YES
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 20:09 UTC · ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026 Jun 05 2002 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 18:54 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5359
Valid From: 2026 Jun 05 0434 UTC
Now Valid Until: 2026 Jun 06 0900 UTC
Warning Condition: Persistence
· · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 18:52 UTC · WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Jun 06: G2 (Moderate) Jun 07: None (Below G1) Jun 08: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment:
· NOAA Space Weather Scale descriptions can be found at
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
05.Jun.2026 17:21 UTC · EXTENDED WARNING: Geomagnetic K-index of 6 expected
Extension to Serial Number: 661
Valid From: 2026 Jun 05 1437 UTC
Now Valid Until: 2026 Jun 06 0300 UTC
Warning Condition: Persistence
NOAA Scale: G2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
05.Jun.2026 17:19 UTC · EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2238
Valid From: 2026 Jun 05 1228 UTC
Now Valid Until: 2026 Jun 06 0600 UTC
Warning Condition: Persistence
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 17:16 UTC · WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2026 Jun 05 1714 UTC
Valid To: 2026 Jun 05 2359 UTC
Warning Conditions: Onset
Noaa Scale: G3 - Greater
Comment:
NOAA Scale: G3 - Greater · ·
05.Jun.2026 16:39 UTC · ALERT: Geomagnetic K-index of 6
Threshold Reached: 2026 Jun 05 1638 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G2 - Moderate
Comment:
NOAA Scale: G2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
05.Jun.2026 16:21 UTC · ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026 Jun 05 1620 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 14:41 UTC · WARNING: Geomagnetic K-index of 6 expected
Valid From: 2026 Jun 05 1437 UTC
Valid To: 2026 Jun 05 2100 UTC
Warning Conditions: Onset
Noaa Scale: G2 - Moderate
Comment:
NOAA Scale: G2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
05.Jun.2026 13:35 UTC · ALERT: Geomagnetic K-index of 5
Threshold Reached: 2026 Jun 05 1327 UTC
Synoptic Period: 1200-1500
Active Warning: YES
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 12:58 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 Jun 05 1253 UTC
Synoptic Period: 1200-1500
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 12:30 UTC · WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026 Jun 05 1228 UTC
Valid To: 2026 Jun 05 2100 UTC
Warning Conditions: Onset
Noaa Scale: G1 - Minor
Comment:
NOAA Scale: G1 - Minor · · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 05:13 UTC · SUMMARY: Geomagnetic Sudden Impulse
Observed: 2026 Jun 05 0511 UTC
Deviation: 70 nT
Station: MEA
Comment:
· ·
05.Jun.2026 04:35 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 05 0434 UTC
Valid To: 2026 Jun 06 0300 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
05.Jun.2026 04:33 UTC · WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2026 Jun 05 0450 UTC
Valid To: 2026 Jun 05 1515 UTC
Ip Shock: 2026-06-05 04:31
Comment:
· ·
03.Jun.2026 22:38 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 03 2237 UTC
Valid To: 2026 Jun 04 0600 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 14:52 UTC · WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day:
Jun 04: G3 (Strong) Jun 05: G3 (Strong) Jun 06: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
Comment:
·
03.Jun.2026 11:59 UTC · SUMMARY: X-ray Event exceeded X1
Begin Time: 2026 Jun 03 1119 UTC
Maximum Time: 2026 Jun 03 1128 UTC
End Time: 2026 Jun 03 1135 UTC
Xray Class: X1.0
Optical Class:
Location: N17W19
Noaa Scale: R3 - Strong
Comment: GOES-18 outage so using GOES-19
GOES-18 outage so using GOES-19NOAA Scale: R3 - Strong · · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 11:47 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 03 1121 UTC
Maximum Time: 2026 Jun 03 1122 UTC
End Time: 2026 Jun 04 1123 UTC
Peak Flux: 250 sfu
Duration: 2 minutes
Latest Penticton Noon Flux: 146 sfu
Comment:
· ·
03.Jun.2026 11:41 UTC · ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Jun 03 1141 UTC
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 07:29 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 03 0657 UTC
Estimate Velocity: 313 km/s
Comment:
· ·
03.Jun.2026 07:17 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 03 0657 UTC
Maximum Time: 2026 Jun 03 0657 UTC
End Time: 2026 Jun 03 0700 UTC
Peak Flux: 540 sfu
Duration: 3 minutes
Latest Penticton Noon Flux: 146 sfu
Comment: Castelli-U signature. Corrected duration.
Castelli-U signature. Corrected duration. · ·
03.Jun.2026 07:15 UTC · SUMMARY: X-ray Event exceeded M5
Begin Time: 2026 Jun 03 0648 UTC
Maximum Time: 2026 Jun 03 0700 UTC
End Time: 2026 Jun 03 0707 UTC
Xray Class: M7.7
Optical Class: 2B
Location: N08W14
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 07:10 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 03 0657 UTC
Maximum Time: 2026 Jun 03 0657 UTC
End Time: 2026 Jun 03 0658 UTC
Peak Flux: 540 sfu
Duration: 1 minutes
Latest Penticton Noon Flux: 146 sfu
Comment: Castelli-U signature
Castelli-U signature · ·
03.Jun.2026 07:00 UTC · ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Jun 03 0700 UTC
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 02:15 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 03 0126 UTC
Maximum Time: 2026 Jun 03 0130 UTC
End Time: 2026 Jun 04 0131 UTC
Peak Flux: 360 sfu
Duration: 5 minutes
Latest Penticton Noon Flux: 146 sfu
Comment:
· ·
03.Jun.2026 01:56 UTC · SUMMARY: X-ray Event exceeded M5
Begin Time: 2026 Jun 03 0122 UTC
Maximum Time: 2026 Jun 03 0136 UTC
End Time: 2026 Jun 04 0143 UTC
Xray Class: M9.3
Optical Class: sf
Location: N13W05
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
03.Jun.2026 01:43 UTC · ALERT: Type IV Radio Emission
Begin Time: 2026 Jun 03 0122 UTC
Comment:
· ·
03.Jun.2026 01:42 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 03 0057 UTC
Estimate Velocity: 253 km/s
Comment:
· ·
03.Jun.2026 01:37 UTC · ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Jun 03 0131 UTC
Noaa Scale: R2 - Moderate
Comment:
NOAA Scale: R2 - Moderate · · NOAA Space Weather Scale descriptions can be found at
02.Jun.2026 17:18 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 Jun 02 1652 UTC
Estimate Velocity: 631 km/s
Comment: Uncertain if the sweep was associated with a limb event or an M3 solar flare that occurred at similar times.
Uncertain if the sweep was associated with a limb event or an M3 solar flare that occurred at similar times. · ·
02.Jun.2026 16:57 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 02 1642 UTC
Maximum Time: 2026 Jun 02 1642 UTC
End Time: 2026 Jun 02 1643 UTC
Peak Flux: 150 sfu
Duration: 1 minutes
Latest Penticton Noon Flux: 137 sfu
Comment: COR for end date. Event only lasted 1 minute.
COR for end date. Event only lasted 1 minute. · ·
02.Jun.2026 16:54 UTC · SUMMARY: 10cm Radio Burst
Begin Time: 2026 Jun 02 1642 UTC
Maximum Time: 2026 Jun 02 1642 UTC
End Time: 2026 Jun 03 1643 UTC
Peak Flux: 150 sfu
Duration: 1 minutes
Latest Penticton Noon Flux: 137 sfu
Comment:
· ·
01.Jun.2026 17:54 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jun 01 1753 UTC
Valid To: 2026 Jun 02 0000 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
30.May.2026 20:36 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 May 30 2035 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
30.May.2026 18:52 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 May 30 1851 UTC
Valid To: 2026 May 31 0600 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
29.May.2026 19:52 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 May 29 1949 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
29.May.2026 19:32 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 May 29 1932 UTC
Valid To: 2026 May 30 0900 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
29.May.2026 05:41 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5353
Valid From: 2026 May 27 2347 UTC
Now Valid Until: 2026 May 29 1200 UTC
Warning Condition: Persistence
· · NOAA Space Weather Scale descriptions can be found at
29.May.2026 00:11 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5352
Valid From: 2026 May 27 2347 UTC
Now Valid Until: 2026 May 29 0600 UTC
Warning Condition: Persistence
· · NOAA Space Weather Scale descriptions can be found at
28.May.2026 18:00 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 May 28 1800 UTC
Synoptic Period: 1800-2100
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
28.May.2026 17:06 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 May 28 1706 UTC
Synoptic Period: 1500-1800
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
28.May.2026 17:02 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5351
Valid From: 2026-05-27T23:47:00
Now Valid Until: 2026-05-29 03:00
Warning Condition: Persistence
Extended 2026-05-28 17:01 by Forecaster User
Extended 2026-05-28 17:01 by Forecaster User · · NOAA Space Weather Scale descriptions can be found at
28.May.2026 11:45 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5350
Valid From: 2026-05-27T23:47:00
Now Valid Until: 2026-05-28 18:00
Warning Condition: Persistence
Extended 2026-05-28 11:44 by Forecaster User
Extended 2026-05-28 11:44 by Forecaster User · · NOAA Space Weather Scale descriptions can be found at
28.May.2026 05:17 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5349
Valid From: 2026-05-27T23:47:00
Now Valid Until: 2026-05-28 12:00
Warning Condition: Persistence
Extended 2026-05-28 05:16 by Forecaster User
Extended 2026-05-28 05:16 by Forecaster User · · NOAA Space Weather Scale descriptions can be found at
27.May.2026 23:47 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 May 27 2347 UTC
Valid To: 2026 May 28 0600 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
27.May.2026 05:47 UTC · EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5347
Valid From: 2026-05-26T21:37:00
Now Valid Until: 2026-05-27 12:00
Warning Condition: Persistence
Extended 2026-05-27 05:47 by Forecaster User
Extended 2026-05-27 05:47 by Forecaster User · · NOAA Space Weather Scale descriptions can be found at
27.May.2026 02:28 UTC · SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2026 May 27 0015 UTC
Maximum Time: 2026 May 26 0110 UTC
End Time: 2026 May 26 0425 UTC
Maximum 10MeV Flux: 23 pfu
Noaa Scale: S1 - Minor
Comment:
NOAA Scale: S1 - Minor · ·
27.May.2026 02:27 UTC · SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2026 May 26 0015 UTC
Maximum Time: 2026 May 26 0110 UTC
End Time: 2026 May 26 0425 UTC
Maximum 10MeV Flux: 23 pfu
Noaa Scale: S1 - Minor
Comment:
NOAA Scale: S1 - Minor · ·
27.May.2026 00:01 UTC · ALERT: Geomagnetic K-index of 4
Threshold Reached: 2026 May 26 2359 UTC
Synoptic Period: 2100-2400
Active Warning: YES
Comment:
· · NOAA Space Weather Scale descriptions can be found at
26.May.2026 21:38 UTC · WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 May 26 2137 UTC
Valid To: 2026 May 27 0600 UTC
Warning Conditions: Onset
Comment:
· · NOAA Space Weather Scale descriptions can be found at
26.May.2026 14:22 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI; updated with correct start time
SVI; updated with correct start time · ·
26.May.2026 14:20 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1420 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:18 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 14:19 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 26 1244 UTC
Estimate Velocity: 650 km/s
Comment: SVI
SVI · ·
26.May.2026 00:35 UTC · ALERT: Proton Event 10meV Integral Flux exceeded 10pfu
Begin Time: 2026 May 26 0010 UTC
Noaa Scale: S1 - Minor
Comment:
NOAA Scale: S1 - Minor · ·
26.May.2026 00:16 UTC · WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2026 May 26 0015 UTC
Valid To: 2026 May 26 2359 UTC
Warning Conditions: Onset
Noaa Scale: S1 - Minor
Comment:
NOAA Scale: S1 - Minor · ·
24.May.2026 12:11 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 24 0850 UTC
Estimate Velocity: 579 km/s
Comment:
· ·
24.May.2026 05:00 UTC · CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3693
Begin Time: 2026-05-16 17:40
Yesterday Maximum 2MeV Flux: 3762 pfu
Continued 2026-05-24 04:59 by Forecaster User
Continued 2026-05-24 04:59 by Forecaster User · ·
23.May.2026 20:00 UTC · ALERT: Type II Radio Emission
Begin Time: 2026 May 23 1941 UTC
Estimate Velocity: 932 km/s
Comment:
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