aurora visibility now
Unlikely
Kp 0.7 (Low) — need Kp 4+ here
Holy Cross in United States sits at magnetic latitude 61.5°, requiring Kp 4+ for aurora visibility. Aurora is unlikely tonight, but conditions can change rapidly. Check the live forecast below or download AuroraMe for real-time alerts.
What affects visibility
Aurora Zone
Higher magnetic latitude = better aurora visibility. Your location's magnetic latitude determines how often auroras appear overhead.
Status Levels:
PerfectAbove 62.0° - Excellent aurora visibility (daily activity)
Good56.0° - 62.0° - Good aurora visibility (regular storms)
Acceptable50.0° - 56.0° - Fair aurora visibility (strong storms only)
LowBelow 50.0° - Poor aurora visibility (extreme storms)
Aurora Zone
Good 61.5°
Kp index
Kp measures global magnetic disturbance. Higher Kp = stronger auroras visible at lower latitudes.
Status Levels:
StormKp 6-9 - Geomagnetic storm, strong auroras
GoodKp 3-6 - Moderate activity, good conditions
LowKp 1-3 - Low activity, weak auroras
Very QuietKp 0-1 - Very quiet, minimal auroras
Kp index
Very Quiet 0.7
Cloud Cover Impact
Clear skies are essential for aurora viewing. Clouds block your view of the northern lights. The percentage shows cloud coverage (0% = clear skies, 100% = overcast).
Status Levels:
ClearClear (0-25%) - Perfect for aurora viewing
Partly CloudyPartly Cloudy (26-50%) - May partially block view
CloudyCloudy (51-85%) - Significantly blocks aurora
OvercastOvercast (85%+) - Blocks aurora completely
Cloud Cover Impact
☁️ Overcast
Moonlight
Bright moonlight can wash out faint auroras. New moon provides the darkest skies for optimal viewing.
Status Levels:
New MoonDarkest skies - Best for faint auroras
CrescentDim moonlight - Good for viewing
QuarterModerate moonlight - May wash out weak auroras
GibbousBright moonlight - Reduces aurora visibility
Full MoonVery bright - Only strong auroras visible
Moonlight
🌒 Crescent 11%
Darkness
Darker skies are essential for aurora viewing. The sun must be below the horizon for auroras to be visible.
Status Levels:
NightDarkest conditions - Optimal for auroras
Astronomical TwilightDark enough - Good aurora viewing
Nautical TwilightGetting darker - Weak auroras may appear
DaylightSun is above horizon - No aurora visible
Darkness
Nautical Twilight
Forecast
Time
Kp
Visibility
15.04, Today
07:00
2.3
Unlikely
08:00
2.3
Unlikely
09:00
2.3
Unlikely
10:00
2.3
Unlikely
11:00
2.3
Unlikely
12:00
2.3
Unlikely
13:00
1.7
Unlikely
16.04, Tomorrow
16:00
1.7
Unlikely
19:00
2.7
Unlikely
22:00
2.7
Unlikely
01:00
2.3
Unlikely
04:00
1.7
Unlikely
07:00
1.7
Unlikely
10:00
1.7
Unlikely
13:00
2.3
Unlikely
17.04, Friday
16:00
2.3
Unlikely
19:00
2.7
Unlikely
22:00
4.0
Unlikely
01:00
3.7
Unlikely
04:00
3.3
Unlikely
07:00
2.7
Unlikely
10:00
3.3
Unlikely
13:00
3.7
Unlikely
18.04, Saturday
16:00
4.3
Unlikely
See Exactly When to Look Up
3-day precision forecast — know the best hour
Kp Index — 27-Day Forecast
Predicted geomagnetic activity based on solar rotation cycle.
...
aurora nights per year
Kp ≥ 4 · 11 years of data
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
#1
Sep Loading data...
Planning a trip? Find the best month and how many nights to stay
📅 All 12 months ranked 🛏️ Min nights for 80% chance 🔔 Push alert 1h before aurora 🌙 72h hour-by-hour forecast
Get Alerted Before Aurora Appears
Push alerts 20–90 min before northern lights. 72h forecast, cloud cover, 11 years of historical data.
Smart Alerts before spikes
Short-term outlook for the next few days
Multiple locations
Trip Planner: Best Days & Best Month
Aurora Borealis Viewing in Holy Cross
Holy Cross sits at 61.5° magnetic latitude, which means aurora typically becomes visible when the Kp index reaches 4+. Holy Cross sees aurora during moderate to strong geomagnetic activity. The best viewing season runs from late September through late March, when nights are long enough for dark skies.
Cloud cover is the most common reason people miss aurora even during strong storms. AuroraMe combines the Kp index with real-time cloud forecasts, moon phase, and darkness data to give you a single visibility status — so you know whether it's worth going outside tonight.
Other cities in United States
Kaktovik
Arctic community with exceptional polar aurora viewing and polar night displays
CURRENT STATUS
Temporarily Unavailable
View
Barrow
Arctic community with exceptional polar aurora viewing and polar night displays
CURRENT STATUS
Temporarily Unavailable
View
Nuiqsut
Far northern Alaska city with outstanding aurora visibility and dark winter skies
CURRENT STATUS
Temporarily Unavailable
View
Atqasuk
Far northern Alaska city with outstanding aurora visibility and dark winter skies
CURRENT STATUS
Temporarily Unavailable
View
Wainwright
Far northern Alaska city with outstanding aurora visibility and dark winter skies
CURRENT STATUS
Temporarily Unavailable
View
Anaktuvuk Pass
Far northern Alaska city with outstanding aurora visibility and dark winter skies
CURRENT STATUS
Temporarily Unavailable
View
Planning a trip? See the best months for Holy Cross → • Northern lights tonight — all cities →
Learn More About the Northern Lights
Northern Lights in Holy Cross: Quick Guide
Minimum Kp Needed
4.0+
Viewing Frequency
regular
Current Kp Index
0.7
How often can you see northern lights in Holy Cross?
Based on its magnetic latitude of <strong>61.5°</strong>, aurora viewing in Holy Cross is <strong>regular (30-80 nights per year)</strong>. We are currently near solar maximum (2024-2025), so expect higher-than-average activity.
Best viewing season: September to March, with peak activity during equinoxes (September and March).
What Kp index do I need to see aurora in Holy Cross?
For Holy Cross, you need a minimum Kp index of <strong>4.0</strong> for aurora to be visible. This threshold is calculated based on the city's magnetic latitude (61.5°).
Higher Kp values produce brighter, more active displays:
- Kp 4.0-5.0: Faint aurora visible in dark skies
- Kp 5.0-6.0: Moderate aurora with dancing patterns
- Kp 6.0+: Strong, colorful displays visible even with some light pollution
Current Kp index: 0.7
Where should I look for aurora in Holy Cross?
Focus on the northern sky, typically 30-60° above the horizon. During strong activity, aurora may spread across the sky.
For best results, seek locations with minimal light pollution and unobstructed views of the sky. At Holy Cross's high latitude, aurora can fill the entire sky during strong activity.
Can I see northern lights tonight in Holy Cross?
Unlikely: Aurora unlikely tonight with Kp 0.7 (below 4.0 threshold for Holy Cross). Enable alerts to catch future opportunities.
Real-time conditions: 100% cloud cover, aurora probability 0%. Check the live forecast above for the latest updates.
Traveling? Track multiple locations easily
Compare aurora chances across cities and get alerts for all your planned destinations.
For brighter shows consider Fairbanks , Yellowknife