Photo: Yukon Aurora Forecast
Nature Tours Yukon Website

Current Aurora Prediction
Current Aurora Prediction Activtiy Level 4
Solar Wind
Velocity:414 km/s
Particle Density:4 protons/cm3
Interplanetary Magnetic Field
Btotal:9 nT
Bz:7 nT North
Current Aurora Prediction
Activity Level:4/10
Confidence:Medium
Current Weather:na
Updated: May 18 2012 300 UTC

Forecast is updated every 15 minutes.
Data is averaged over last 15 minutes.

Current Aurora Forecast

for Canada's North

The solar wind velocity is currently low at 414 km/s. While this is certainly not the only indicator for a spectacular aurora display it doesn't help to increase our chances. However, particle density impacting the earth is very high coming in at 4 protons/cm3. These relatively high density numbers will help to improve the overall spread of the aurora we see.

The Bz value of the Interplanetary Magnetic Field is current acting in a northward direction at a value of 7 nT which doesn't help the flow of energy particles into our atmosphere. The interplanetary magnetic field can change significantly in a short period of time. A change in direction to a southward or negative value can increase the potential for active aurora by allowing more energy particles to enter our upper atmosphere. In this scenario we can expect to experience aurora sub-storms and will be reflected by a significant jump in the aurora activity level indicated on this page.

Aurora Activity Level 4/10: Aurora borealis activity is currently moderate to low. Weather permitting, northern lights displays will be visible directly overhead from areas closer to magnetic 69th.

Extended 3-Day Activity Forecast Description (May 18 to May 20): The geomagnetic field is expected to be mostly quiet during the first half of day 1 (18 May). Around mid to late on day 1, a shock arrival is expected from the partial halo CME associated with the 17 May M5 flare. Active to minor storm conditions are expected. Early on day 2 (19 May), unsettled to active conditions are expected, returning to quiet to unsettled levels by the end of the day. Quiet to unsettled conditions are expected on day 3 (20 May).

3-Day Aurora Forecast
Friday (May 18)Saturday (May 19)Sunday (May 20)
Aurora Forecast - Active: 35% - Minor Storm: 40% - Major Storm: 15%
Active aurora probable with excellent chance of minor auroral substorms and isolated major aurora substorms possible.
Aurora Forecast - Active: 35% - Minor Storm: 25% - Major Storm: 10%
Active aurora probable with good chance of isolated minor auroral substorms and slight chance of isolated major auroral substorms.
Aurora Forecast - Active: 15% - Minor Storm: 10% - Major Storm: 05%
Active aurora possible with slight chance of isolated minor auroral substorms and slight chance of isolated major auroral substorms.
Tourism Industry Association of the Yukon
Wilderness Tourism Association of the Yukon
Aurora Borealis & Northern Lights Tours Yukon
Northern Tales Travel Services Inc.
P.O. Box 31178, Whitehorse, Yukon Canada Y1A 5P7
Phone: 867-667-6054 Fax: 867-667-6055 Email:info@auroraborealisyukon.com