Aurora Outlook and Prediction for Denver, Colorado
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Kp: 3 | Bz: -7.01
Best Viewing Window: 11:56 PM – 6:01 AM MDT (6h 5m)
Best Viewing Window:
11:56 PM – 6:01 AM MDT Space Weather Now
Timing: Now · Confidence: Moderate
Webcam
No aurora cams nearby. Center on nearest camera (1263 km away).
Browse other webcams on Windy3-Day Forecast for Denver, Colorado
Aug 28
ActiveNOAA has issued a watch for this night (see below) - aurora may be visible at higher latitudes.
CME Watch: G2 (Moderate) · Kp 6 expected
Best time to look up: 9:00 PM–12:00 AM MDT
5% chance of elevated activity · Kp 5.67 during viewing window, up to Kp 6 depending on CME timing
Aug 29
ActiveSome activity possible - aurora may be visible at higher latitudes.
Best time to look up: 9:00 PM–12:00 AM MDT
40% chance of elevated activity · Kp 3.67 during viewing window
Aug 30
QuietLow chance of aurora - geomagnetic activity is expected to stay quiet.
Best time to look up: 9:00 PM–12:00 AM MDT
10% chance of elevated activity · Kp 2 during viewing window
Aurora Oval & Satellite & Sun
Aurora Globe
Satellite View
Sunspots
Current sunspot number: 92
Coronal Mass Ejections
Solar Wind & IMF (GSM)
- Bt
- 10.6 nT
- Bx
- -7.7 nT
- By
- -1.2 nT
- Bz
- -7.01 nT
- Clock Angle θ
- -41.8°
- Cone Angle φ
- 189°
- Speed
- 354 km/s
- Density
- 14.4 p/cc
IMF Detail (GSE) & Source
- Bx
- -7.7 nT
- By
- 1.8 nT
- Bz
- -6.9 nT
- θ Angle
- -40.9°
- φ Angle
- 166.9°
- Satellite
- SOLAR-1
- Data Quality
- Good
- Reading Time
- Aug 28, 11:49 PM MDT
Geomagnetic Indices
- Kp (now)
- 3
- Dst
- -35 nT
- HPI
- 10 GW
- Sunspot Number
- 92
Aurora Model
- Ovation Value
- 0
- Ovation Label
- None
- Model Data Time
- Aug 29, 1:00 AM MDT
- Ovation Data
- Live
Scores & Ratings
- Aurora Visibility
- 49 · Fair
- Aurora Visibility (w/ Moon)
- 49 · Fair
- Prediction Score
- 33 · Weak Activity
Sky & Location
- Cloud Cover
- 0% · Clear
- Solar Elevation
- -38.7° · Dark Night
- Moon Phase
- Waning Gibbous
- Moon Illumination
- 98%
- Moon Altitude
- 41° · Up
- Latitude
- 39.73915
- Longitude
- -104.9847
- Geomagnetic Latitude
- 47.4°
- Horizon Threshold
- Kp 8
- Overhead Threshold
- Never
Prediction Model Inputs
- Bz Persistence (60min)
- -7.9 nT
- Newell Coupling
- 11969
- Dynamic Pressure
- 3 nPa
- Storm Watch (CME)
- ~0h · G2 (Moderate)
- Watch Predicted Kp
- 6
Timing & Confidence
- Timing
- Now
- Confidence
- Moderate
- L1 Delay
- ~4237 min
- Best Viewing Window
- 11:56 PM – 6:01 AM MDT (6h 5m)
3-Day Kp Forecast
| MDT | Aug 29 | Aug 30 | Aug 31 |
|---|---|---|---|
| 6:00 PM–9:00 PM | 5.67 | 2.67 | 1.67 |
| 9:00 PM–12:00 AM | 5.67 | 3.67 | 2 |
| 12:00 AM–3:00 AM | 4.67 | 3.67 | 1.67 |
| 3:00 AM–6:00 AM | 4.67 | 2.67 | 1.67 |
| 6:00 AM–9:00 AM | 3.67 | 1.67 | 1 |
| 9:00 AM–12:00 PM | 3.67 | 1 | 1 |
| 12:00 PM–3:00 PM | 2.67 | 1.67 | 0.67 |
| 3:00 PM–6:00 PM | 2.67 | 2.67 | 2 |
| Max | 5.67 | 3.67 | 2 |
| Ap Index | 35 | 12 | 5 |
Storm Probability
| Level | Aug 29 | Aug 30 | Aug 31 |
|---|---|---|---|
| Active | 5% | 40% | 10% |
| Minor storm | 30% | 25% | 1% |
| Moderate storm | 40% | 10% | 1% |
| Strong-Extreme storm | 25% | 1% | 1% |
Planetary K-index
Interplanetary Magnetic Field Bz-7.7 nT now
Southward (negative) Bz favors aurora. Observed data only, no forecast product exists for Bz.
Total IMF Field Bt10.6 nT now
Total interplanetary magnetic field strength - the ceiling on how negative Bz can go. A rising Bt alongside a still-fluctuating Bz often leads a stronger southward turn. Observed data only, no forecast product exists for Bt.
Storm Trend56 now
Prediction score (0-100) over the last 24 hours, logged every 5 minutes. Red above 70, yellow 50-70, teal below 50 - same thresholds used everywhere else on this page. Dashed line is the overall trend.
Dst History-35 nT now
Kyoto Dst geomagnetic storm index over the last 24 hours. Negative = ring-current energy stored = an active storm, not just predicted. Red below −50nT, yellow −20 to −50nT, teal above −20nT.
Solar Wind Speed & Pressure
Each line is scaled independently to its own 24h range (different units) - watch the shape, not a shared axis. A rising speed line or a pressure spike can signal an incoming stream or shock before Bz/Dst move.
Nerd Mode: See what’s really driving the score. Live solar wind, Bz, Kp, Dst, CME timing, and more. Data comes from NOAA SWPC and the Kyoto WDC, with a few metrics calculated here from the raw data. Live data refreshes every minute; trend charts every five.
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