Tonight
GO
Kp 2.67 line 21 mi south · 11% cloud
Kp 2.67 · 21 mi south
Kp 2.67 drives this window
best window 21:37–04:53 — Kp 2.67 bin, 11% cloud, moon 32%, rises 01:25
dark 21:37–04:53 · moon 32%, rises 01:25
Should I drive?
| Location | Now | Tonight | Best-window clouds | Drive |
|---|---|---|---|---|
| Home homegeomag 50.6° |
NO
74 mi south
535 mi south
HP-gated: horizon claims suppressed
|
GO
Kp 2.67 · 21 mi south
|
11% | — |
| McClellan Viewpointgeomag 51.0° |
NO
125 mi south
586 mi south
HP-gated: horizon claims suppressed
|
GO
Kp 2.67 · 58 mi south
|
12% | 90 min |
| Windy Ridge Viewpointgeomag 51.2° |
NO
140 mi south
601 mi south
HP-gated: horizon claims suppressed
|
GO
Kp 2.67 · 73 mi south
|
10% | 180 min |
View lines
conservative (110 km) storm (300 km)
Why Home can see it right now
Right now
Kp now
1.67
Hemispheric power
30 GW
Bz (nT) red = southward = go
—
Speed (km/s)
—
Density (p/cm³)
—
Tonight & tomorrow night — Home
Tomorrow night
MAYBE
Kp 2.67 line 21 mi south · 62% cloud
Kp 2.67 · 21 mi south
Kp 2.67 drives this window
best window 21:37–22:37 — Kp 2 bin, 62% cloud, moon 22%, rises 02:06
dark 21:37–04:54 · moon 22%, rises 02:06
3-day Kp forecast
| UT | Jul 10 | Jul 11 | Jul 12 |
|---|---|---|---|
| 00–03 UT | 3.67 | 3.67 | 2.33 |
| 03–06 UT | 2.67 | 2 | 2 |
| 06–09 UT | 2.67 | 2 | 2 |
| 09–12 UT | 2.67 | 2.67 | 2 |
| 12–15 UT | 2.67 | 2.67 | 2 |
| 15–18 UT | 2.67 | 2.67 | 2 |
| 18–21 UT | 3.67 | 2.67 | 2 |
| 21–24 UT | 2.67 | 3 | 2.33 |
Claude's read
Previous statement — this build did not trigger a new analysis.
No geomagnetic storm — Kp is ~1 now with a 3-day forecast peaking at only 3.67, well below the Kp 5 (G1) needed for aurora at these ~50–52° geomagnetic-latitude sites, so the dashboard's GO/MAYBE badges are view-line geometry artifacts, not real aurora.
External references (NOAA SWPC planetary K-index and standard Kp/G-scale guidance) confirm a geomagnetic storm requires Kp≥5, and at Portland-area latitudes aurora typically only becomes visible around Kp 6–7; nothing here approaches that. The build's own telemetry corroborates quiet conditions: Kp 1.0 now, forecast maxing at 3.67, weak and noisy Bz (mostly -4 to -7 nT with no sustained strong southward drive), and no_line_reason 'quiet_oval.' Elevated solar-wind speed (~600 km/s high-speed stream) and hemispheric power just above the 20 GW gate (27 GW) explain why the Home 'storm-altitude' line isn't hp-gated, but that line is a 300 km projection, not an observed storm. Note the build is future-dated (2026-07-10) so live feeds cannot be matched minute-for-minute, but every physical indicator unambiguously points to quiet space weather.
no confidence: high storm not confirmed window (LLM commentary): No aurora expected at this latitude with Kp≤3.67; if going out anyway for dark skies, tonight ~21:38–04:54 PDT is clearest (Windy Ridge/McClellan lowest cloud), but do not expect northern lights.