Astroblog: [Aurora Alert] Aurora happening NOW. Aurora and Geomagnetic Alert and Aurora Watch (5 August, 2019)

Monday, August 05, 2019

[Aurora Alert] Aurora happening NOW. Aurora and Geomagnetic Alert and Aurora Watch (5 August, 2019)

UPDATE to UPDATE: G2 storm now, Kindex 6, but Velocity: 660 km/sec Bz: 3.0 nT Density = 4.0 p/cc.

UPDATE: aurora have been spotted in STAWELL Victoria, reasonably far inland. Go and look people.

Aurora are currently visible in Tasmania (Exeter, South Arm) and Port Campbell Victoria The SWS has issued an aurora and geomagnetic alert for now (G1 storm in progress) and aurora watch for tonight 5 August due to impacts from slow moving coronal mass ejections.

Currently the local Kindex is 5, and the solar parameters are good for aurora, Velocity: 575 km/sec Bz: -10.0 nT Density = 7.0 p/cc.

If these conditions persist aurora may continue to be be seen in Southern Australia under dark sky conditions. The Moon is waxing but is an early crescent and will not really interfere with seeing aurora. Be patient, as the activity may rise and fall of the magnetic polarity of the wind may fluctuate significantly.

Dark sky sites have the best chance of seeing anything, and always allow around 5 minutes for your eyes to become dark adapted.

As always look to the south for shifting red/green glows, beams have been reported consistently over the last few aurora, as well as bright proton arcs and "picket fences". A double arc, blobs, and curtains were seen in Septembers aurora last despite the moonlight.

Here is the near-real time satellite view of the clouds http://satview.bom.gov.au/
Cloud cover predictions can be found at SkippySky.

SUBJ: SWS AURORA ALERT HIGH LATITUDES
ISSUED AT 0923 UT ON 05 Aug 2019 BY SPACE WEATHER SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

GEOMAGNETIC STORM IN PROGRESS. AURORA MAY BE OBSERVED
DURING LOCAL NIGHT TIME HOURS IN GOOD OBSERVING CONDITIONS
AT HIGH LATITUDES.

Follow the progress of this event on the SWS web site
by following the links to the Space Weather Status Panel,
Home > Space Weather

SWS would appreciate any feedback from people observing an
aurora giving details of location and time. Please provide
details at: http://www.sws.bom.gov.au/Geophysical/2/5Previous reports of observed aurora are archived under
http://www.ips.gov.au/mailman/listinfo/ips-aurora-sightings=========================================================

SUBJ: SWS GEOMAGNETIC DISTURBANCE ALERT
ISSUED AT 1000 UT ON 05 AUG 2019 BY SPACE WEATHER SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

MINOR (G1 - MINOR) GEOMAGNETIC DISTURBANCE IN PROGRESS (K OF 5 REACHED)
PRELIMINARY AUSTRALIAN REGION K INDICES FOR 05 08 19: 1345 ----

FOLLOW THE PROGRESS OF THIS EVENT ON THE SWS SPACE WEATHER STATUS PANEL,
HTTP://WWW.SWS.BOM.GOV.AU > SPACE WEATHER

Visit the SWS Aurora webpage http://www.sws.bom.gov.au/Aurora for current
aurora viewing conditions.

Our Aurora forecasting tool, located at
http://www.sws.bom.gov.au/Aurora/3/1, may help to estimate regions
from where aurora would be visible.

http://www.sws.bom.gov.au/Space_Weather

Labels: aurora

# posted by Ian Musgrave @ 8:22 pm

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