Aurora Borealis forecast for Alaska

You can click on a column in the graph above to see the detailed forecast below.

Wednesday, February 20, 2019

Activity level is MODERATE

KPI index: 0 1 2 3 4 5 6 7 8 9
Peak Activity: 12:00AM

Auroral activity will be low. Weather permitting, low-level displays will be visible overhead from Barrow to Fairbanks and visible low on the northern horizon from as far south as Anchorage and Juneau.

Hourly Weather Forecast for Valdez
6PM 99% cloudyKPI 2
7PM 100% cloudyKPI 2
8PM 100% cloudyKPI 2
9PM 100% cloudyKPI 2
10PM 100% cloudyKPI 2
11PM 100% cloudyKPI 2
12AM 100% cloudyKPI 3
1AM 100% cloudyKPI 3
2AM 100% cloudyKPI 3
3AM 100% cloudyKPI 2
4AM 100% cloudyKPI 3
5AM 100% cloudyKPI 3
6AM 100% cloudyKPI 2
7AM 99% cloudyKPI 3
Alaska Aurora Forecast

The Aurora Borealis (Northern Lights) forms when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. These collisions result in countless little bursts of light, called photons, which make up the aurora.

The KP Index (KPI) goes from 0 to 9 as the geomagnetic strength increases. KPI 0 being no aurora while KPI 9 being a major geomagnetic storm likely visible all the way to California and even to France.

30 minute Aurora Forecast

Aurora Forecast Northern Hemisphere NOAA/POES model image

The forecast above is provided by the Space Weather Prediction Center. Their OVATION Aurora Forecast Model shows the intensity and location of the aurora predicted for the time shown at the top of the map.

30 minute Aurora forecast Extended 3 day Aurora forecast

Space Weather News

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