Solar Storms at G3 Geomagnetic Storm Watch
Reported by SWPC 72 days ago.
What the source measured
SWPC reported: Space Weather Message Code: WARK07 Serial Number: 152 Issue Time: 2026 Jul 05 0027 UTC CANCEL WARNING: Geomagnetic K-index of 7 or greater expected Cancel Serial Number: 151 Original Issue Time: 2026 Jul 04 0501 UTC Wrong date in the original end time. Warning was supposed to expire at 04/1200
How we know
4 recorded sources include SWPC; independence is not established by this count.
Our own score for this event is 56 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Solar Storms |
| Severity | High |
| Calamity Score (ours) | 56 / 100 |
| Legacy data-support index | 0.72/1 |
| Coordinates | 0.0000, 0.0000 |
| Timestamp | 2026-07-04T22:27:14.067Z |
| Source | https://www.swpc.noaa.gov/products/alerts-watches-and-warnings |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: swpc. Occurrence: 2026-07-04T22:27:14.067Z.
First archived: 2026-07-07T22:24:07.500Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Scale | G3 |
| KpIndex | 7 |
| CurrentKp | 0 |
| GLevel | 3 |
| PowerGridRisk | moderate |
| GpsRisk | degraded |
| RadioRisk | intermittent |
| HighRiskRegions | ["High-latitude regions (>50°)"] |
| EventType | geomagnetic_storm |
| Soho Lasco ActivityId | 2026-07-05T01:48:00-CME-001 |
| Soho Lasco SpeedKms | 564 |
| Soho Lasco HalfAngleDeg | 41 |
| Soho Lasco IsHalo | false |
| Soho Lasco EarthDirected | false |
| Soho Lasco EventType | cme |
| Soho Lasco Note | Possible streamer blowout CME to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and to the N/NW in STEREO A COR2 imagery. There is no clear source for this CME, however there are continued moving/opening field lines visible along the northern limb in GOES SUVI 284 imagery starting around 2026-07-05T00:00Z |
| MergedSources | [{"id":"soho_lasco_2026_07_04T18_24_00_CME_001","source":"soho_lasco","severity":"low","severityValue":20,"timestamp":1783189440000,"latitude":0,"longitude":0},{"id":"soho_lasco_2026_07_05T00_00_00_CME_001","source":"soho_lasco","severity":"low","severityValue":20,"timestamp":1783209600000,"latitude":0,"longitude":0},{"id":"soho_lasco_2026_07_05T01_48_00_CME_001","source":"soho_lasco","severity":"low","severityValue":35,"timestamp":1783216080000,"latitude":0,"longitude":0}] |
Cascade Risks
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.