Aurora Forecast and Prediction for Healy, Alaska

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Aurora Visibility12Poor
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Kp: 2.67 | Bz: 1.26

Prediction22Little to None

Best Viewing Window: 3:28 AM – 7:53 AM AKDT (4h 25m) · peak hours typically 12:58 AM – 4:58 AM

Bz 1.26 nT Aurora Weak Dark Night Few Clouds · 27% Prediction 22 · Little to None Waxing Crescent 5% Color Key
Good Viewing Locations Nearby Stampede Road 3 mi Otto Lake 5 mi Denali Viewpoint North 9 mi
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Space Weather Now

Kp (now)
2.67
Forecast Kp (today)
5
Bz (nT)
1.26
HPI
13 Low · 25 GW
Dst (nT)
-9
Density (p/cc)
10.9
Speed (km/s)
497
Sky / Darkness
Few Clouds Dark Night
Sunspot Number
93

Timing: Now · Signal Strength: High

Webcam

3-Day Forecast for Healy, Alaska

Oct 12
Global: Active Healy: Likely overhead

Kp 4.3 is enough to bring the aurora high overhead at Healy, not just low on the northern horizon.

Global: NOAA has issued a watch for this night (see below) - moderate planetary activity, aurora across the high-latitude zone.

CME Watch: G1 (Minor) · Kp 5 expected

Best time to look up: 1:00 AM–4:00 AM AKDT

35% chance of elevated activity · Kp 4.33 during viewing window, up to Kp 5 depending on CME timing

Oct 13
Global: Active Healy: Likely overhead

Kp 4 is enough to bring the aurora high overhead at Healy, not just low on the northern horizon.

Global: Moderate planetary activity expected - aurora across the high-latitude zone, and lower with a good substorm.

Best time to look up: 7:00 PM–10:00 PM AKDT

35% chance of elevated activity · Kp 4 during viewing window

Oct 14
Global: Active Healy: Likely overhead

Kp 3.3 is enough to bring the aurora high overhead at Healy, not just low on the northern horizon.

Global: Moderate planetary activity expected - aurora across the high-latitude zone, and lower with a good substorm.

Best time to look up: 7:00 PM–10:00 PM AKDT

20% chance of elevated activity · Kp 3.33 during viewing window

Aurora Oval & Satellite & Sun

Aurora Probability
LowHigh

Interactive Aurora Globe

Alaska Satellite

Satellite View

sunspots

Sunspots

Current sunspot number: 93

Coronal Mass Ejection

Coronal Mass Ejections

Solar Wind & IMF (GSM)

Bt
9.1 nT
Bx
1.8 nT
By
-8.8 nT
Bz
1.26 nT
Clock Angle θ
7.9°
Cone Angle φ
281.3°
Speed
497 km/s
Density
10.9 p/cc

IMF Detail (GSE) & Source

Bx
1.8 nT
By
-8.2 nT
Bz
-3.5 nT
θ Angle
-22.6°
φ Angle
282.1°
Satellite
SOLAR-1
Data Quality
Good
Reading Time
Oct 13, 3:22 AM AKDT

Geomagnetic Indices

Kp (now)
2.67
Dst
-9 nT
HPI
13 GW
Sunspot Number
93

Aurora Model

Ovation Value
17
Ovation Label
Weak
Model Data Time
Oct 13, 4:14 AM AKDT
Ovation Data
Live

Scores & Ratings

Aurora Visibility
12 · Poor
Aurora Visibility (w/ Moon)
12 · Poor
Prediction Score
22 · Little to None

Sky & Location

Cloud Cover
27% · Few Clouds
Clouds, Next Dark Window
55% · Scattered · ×0.50
Aurora Visibility Tonight
18 · Poor (Outlook Tonight 35 × cloud 0.50)
Solar Elevation
-30.9° · Dark Night
Moon Phase
Waxing Crescent
Moon Illumination
5%
Moon Altitude
-49.7° · Below Horizon
Latitude
63.85694
Longitude
-148.96611
Geomagnetic Latitude
64.5°
Horizon Threshold
Kp 1
Overhead Threshold
Kp 2

Prediction Model Inputs

Bz Persistence (60min)
3.3 nT
Newell Coupling
5554
Latitude Gate
1.00 now · 1.00 tonight (horizon Kp 0)
Dynamic Pressure
4.5 nPa
Storm Watch (CME)
~0h · G1 (Minor)
Watch Predicted Kp
5

Timing & Signal Strength

Timing
Now
Signal Strength
High
L1 Delay
~50 min
Magnetic Midnight
2:58 AM (peak hours 12:58 AM – 4:58 AM)
Best Viewing Window
3:28 AM – 7:53 AM AKDT (4h 25m)

3-Day Kp Forecast

AKDT Oct 13 Oct 14 Oct 15
4:00 PM–7:00 PM 4 3.67 2.67
7:00 PM–10:00 PM 4.67 4 3.33
10:00 PM–1:00 AM 5 2.67 3
1:00 AM–4:00 AM 4.33 3.67 2.33
4:00 AM–7:00 AM 4 3.67 1.67
7:00 AM–10:00 AM 3.67 3.67 1
10:00 AM–1:00 PM 3.33 3.33 1.33
1:00 PM–4:00 PM 2.67 2.67 2.33
Max 5 4 3.33
Ap Index 28 20 10

Storm Probability

Level Oct 13 Oct 14 Oct 15
Active 35% 35% 20%
Minor storm 35% 25% 5%
Moderate storm 15% 10% 1%
Strong-Extreme storm 5% 1% 1%

Planetary K-index

Oct 10
Oct 11
Oct 12
Now
Oct 13
Oct 14
Oct 15
Quiet (Kp 0-3) Unsettled (Kp 4) Minor-Moderate Storm (Kp 5-6) Strong+ Storm (Kp 7-9) Forecast (hatched)

Interplanetary Magnetic Field Bz-0 nT now

17 0 -12 Oct 12, 3 AM Oct 12, 9 AM Oct 12, 3 PM Oct 12, 9 PM Oct 13, 3 AM

Southward (negative) Bz favors aurora. Observed data only, no forecast product exists for Bz.

Total IMF Field Bt9.3 nT now

18 0 Oct 12, 3 AM Oct 12, 9 AM Oct 12, 3 PM Oct 12, 9 PM Oct 13, 3 AM

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.

Global Storm Trend26 global now

100 50 0 Oct 12, 3 AM Oct 12, 9 AM Oct 12, 3 PM Oct 12, 9 PM Oct 13, 3 AM

Global (hemisphere-wide, not this city) prediction score over the last 24 hours, logged every 5 minutes - may differ from the Prediction ring above, which is specific to this location and time of night. 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-9 nT now

27 0 -57 Oct 12, 3 AM Oct 12, 9 AM Oct 12, 3 PM Oct 12, 9 PM Oct 13, 3 AM

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

Oct 12, 3 AM Oct 12, 9 AM Oct 12, 3 PM Oct 12, 9 PM Oct 13, 3 AM
Speed: 500 km/s now Pressure: 3.9 nPa now

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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