Ovation: South
Weather: TAS
Presets: Presets


Solar-terrestrial indices for 15 October follow.
Solar flux 84 and estimated planetary A-index 6.
The estimated planetary K-index at 2100 UTC on 15 October was 1.

No space weather storms were observed for the past 24 hours.

No space weather storms are predicted for the next 24 hours.

Geo Magnetic Forecast:

NOAA Ap Index Forecast
Observed Ap 13 Oct 006
Estimated Ap 14 Oct 005
Predicted Ap 15 Oct-17 Oct 008-008-005

NOAA Geomagnetic Activity Probabilities 15 Oct-17 Oct
Active                30/30/20
Minor storm           05/05/01
Moderate storm        01/01/01
Strong-Extreme storm  01/01/01

NOAA Kp index forecast 15 Oct - 17 Oct
             Oct 15    Oct 16    Oct 17
00-03UT        1         1         2
03-06UT        2         2         2
06-09UT        2         2         1
09-12UT        1         3         1
12-15UT        2         2         1
15-18UT        3         3         1
18-21UT        3         2         1
21-00UT        2         2         2

Extended Three Day Forecast:

A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 2 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Oct 15-Oct 17 2021 is 3 (below NOAA
Scale levels).

NOAA Kp index breakdown Oct 15-Oct 17 2021

            Oct 15     Oct 16     Oct 17
00-03UT        2          1          2
03-06UT        2          2          2
06-09UT        2          2          1
09-12UT        2          3          1
12-15UT        2          2          1
15-18UT        3          3          1
18-21UT        3          2          1
21-00UT        2          2          2

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.  No
significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-16 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Oct 15-Oct 17 2021

              Oct 15  Oct 16  Oct 17
S1 or greater    1%      1%      1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Oct 15-Oct 17 2021

              Oct 15        Oct 16        Oct 17
R1-R2            1%            1%            1%
R3 or greater    1%            1%            1%

Rationale: No R1 (Minor) or greater radio blackouts are expected.  No
significant active region flare activity is forecast.

Extended Space Weather Discussion:

Solar Activity

.24 hr Summary...
Solar activity was at very low levels. Region 2885 (N15, L=172) decayed
to plage as it rotated towards the W limb. Region 2882 (N15W70,
Hhx/alpha) continued to simplify and was quiet over the reporting
period. No Earth-directed CMEs were observed in available coronagraph

Very low solar activity is expected, with a slight chance for C-class
flares over 15-17 Oct.

Energetic Particles

.24 hr Summary...
The greater than 2 MeV electron flux was at normal to moderate levels
and the greater than 10 MeV proton flux retained background values.

The greater than 2 MeV electron flux is expected to continue at normal
to moderate levels and the greater than 10 MeV proton flux is expected
to remain at background 15-17 Oct.

Solar Wind

.24 hr Summary...
Solar wind parameters, as measured by the DSCOVR spacecraft, reflected
mostly nominal conditions. Total magnetic field strength ranged from 1-9
Nt but mostly hovered  at or below 5 nT for the majority of the period.
Bz briefly reached a maximum southward deflection of -6 nT at 14/2253
UTC. Solar wind speeds were between 332-383 km/s. Phi angle transitioned
from negative to positive after 14/2347 UTC.

Weak influences of a negative polarity CH HSS may result in
minor disturbances in the solar wind field on 15 Oct. Additional, weak
enhancements in the IMF are possible on 16-17 Oct.


.24 hr Summary...
The geomagnetic field was quiet.

Weak CH HSS effects on 15 Oct are expected to result in quiet to
unsettled conditions. Primarily quiet conditions are expected on 16-17

27 Day Forecast:

Date | Radio Flux | Planetary A Index | Largest Kp Index
2021 Aug 30      90          25          5
2021 Aug 31      90           8          3
2021 Sep 01      90          18          5
2021 Sep 02      90           8          3
2021 Sep 03      90          12          4
2021 Sep 04      85           5          2
2021 Sep 05      82           5          2
2021 Sep 06      80           5          2
2021 Sep 07      80           5          2
2021 Sep 08      80           5          2
2021 Sep 09      80           5          2
2021 Sep 10      80           5          2
2021 Sep 11      80          10          3
2021 Sep 12      80           8          3
2021 Sep 13      80           5          2
2021 Sep 14      82           5          2
2021 Sep 15      85           5          2
2021 Sep 16      90           5          2
2021 Sep 17      90           5          2
2021 Sep 18      90           5          2
2021 Sep 19      90           5          2
2021 Sep 20      90           5          2
2021 Sep 21      90           8          3
2021 Sep 22      90           5          2
2021 Sep 23      90           5          2
2021 Sep 24      90           5          2
2021 Sep 25      90           5          2

  • GRAPH OPTIONS: Learn more
    It is recommended that you start out with the default options. As you get used to AF you can disable additional information and combine data series' together to maxamise the use of screen space.

  • DATA SOURCES: Learn more
    Some data sources can only be enabled or disabled via the tick box. Others are disabled using the slider set to 0, or enabled by setting the slider from 0.5 to 4. This number also represents the thinkness of the line plot onto the graph.

  • 'The' Aurora Forecast Index: Learn more
    These are two good options for predicting Auroras.

    The Aurora Forecast Index takes into account many data sources. As a general rule if it stays high for many hours there is a good possibility of an Aurora present.

    Aurora Forecast website usage is also a good indicator, as visitors to the site come from many traffic sources. General internet and community chatter transplating to visits is a great indicator.

  • Planatary K Index (Kp): Learn more
    The Kp number is a system of measuring aurora strength. The range goes from 0 to 9 (0 being calm, 1 very weak, all the way up to 9, which would represent a major geomagnetic storm with strong auroras visible).

    Kp 5 and above is classified as a geomagnetic storm. Most Aurora Hunters consider prolonged 3+ or higher worth investigation.

  • Ovation (Model) Short Term Forecast (GW):' Learn more
    The Ovation-Prime Model produced by SWPC calculates the energy interacting with the Earths magnetic field. This is a good indicator for Aurora activity.
  • DSCOVR Observatory (L1): Learn more

    The DSCOVR or Deep Space Climate Obervatory sits 1.5 million Kilometers from Earth, between the Earth and the Sun in the L1 orbit point, the neutral gravity point between the Earth and the Sun. DSCOVR provides space weather readings, allowing for up to an hour of warning on weather events. This is why DSCOVR's data appears in the future on the graph.

    Strong negative Bz direction is linked to Aurora's because the solar wind magnetic direction is in direct oposition with the Earths magnetic field.

  • ACE Observatory (L1): Learn more

    ACE or Advanced Composition Explorer sits 1.5 million Kilometers from Earth, between the Earth and the Sun in the L1 orbit point, the neutral gravity point between the Earth and the Sun. ACE has now been replaced by DSCOVR, but the data is still useful for comparing to DSCOVR.
  • GOES Satalites: Learn more

    GOES or Geostationary Operational Environmental Satellites sit 46 Kilometers above the Earth in geostationary orbit. They provide local space weather data and are a good indicator for current geomagnetic conditions.

  • Terrestrial Magnetometer Sources: Learn more
    Terrestrial or surface magnetometers detect fluctuations in the Earths magnetic field from the ground.
    These do not work as well as satalites as the magnetic field obsorbs some of the effects from the solar winds.
    There is a mix of govenment and citizen science stations listed here, including two run by Aurora Forecast in Hobart.
  • User Magnetometer ID's: Learn more
    If you have a TAFS Magnetometer and you want to add it to the graph you can do it here.
    Insent your Mag's Unique ID.



Aurora Forecast is free to use, however it takes a lot of time and effort to maintain. If you find it useful and are a regular user then please consider making a donation to keep it running. Feedback is always welcome.

v4.X Release 17th Dec 2020)
Fixed New GOES and HPI inputs from noaa for Json (17/12/20).
Addded the ability to add 2 custom Magnetometers in settings (comming soon) (18/10/19).
Improved Hobart Magnetometer code. (18/18/19)
Move all presets into their own pop out side menu. (19/06/19)
Added Composite weather maps (TAS, VIC and SA), thanks to Oz forecast! (19/06/19)
UI Upgrades, Name, Logo and Website Site Changes.
Added custom line widths for most items.
Added GOES Difference (#1 - #2)
Added Ovation-prime model outputs.

Various Updates, New AF Index Algo. (8/12/18)

Added more Presets. Disabled Presets overwriting graph views (6/7/18)
Added GeoSpace Kp Model Prediction. (3/7/18)
Added SWPC Kp Forecast + Observation. (2/7/18)
Removed WingKP and USKp. :( No longer Avaliable. (2/7/18)
Removed feed from (Unreliable). (2/7/18)
Updates to latest JQuery, JQuery Mobile and AmCharts etc. (2/7/18)
Enhanced Pro setting with Dynamic Preasure. (2/7/18)
Added Quickselect preset buttons to main page. (2/7/18)
Added Ruru Observatory Magnetometer. (25/4/28)
Added Forecast Sub Tabset. (1/3/18)
Added Extended Discussion Text, 27Day FC (1/3/18)
Removed Dial, and Added Forecast Report. (28/2/18)
Updated A few settings for better visilation. (28/2/18)
Updated Goes-13 is Now Goes-14 (15/2/18)
Improved Commmunity Activity for faster loads.
Consolidated Proton Density / Dynamic Preasure.
Added Additional Balloon Text.
Added TAFS Visual Probability in %.
User Interface Upgrades.
Add 'Dial' for the basics, with default support.
Added one click presets.
v2.1 - v2.49
Added 'Automatic Chart Update' option in settings.
Database caching enabled, significant load time improvements.
Extension to max 96 hours of data, up from 24.
Added ACE Bt,Bx and By for comparison.
Added More User Presets.
Fixed Orentation Change Alert.
Small layout changes.
Added Header Image.
Removed Top Header to fee up Space, Refresh added to Chart Tab.
Added Community Activity Indicator
Fixed MAG value issues in graph.
Added Second Hobart MAG Source.
Updated Comment Features (Disable).
Fixed DSCOVR B? display bug.
Added MAG Stack Feature.
Upgrade to json feeds.
Feeds are timezone and forecast aware, making them super fast.
DB Optimisation, improved DB search times.
Charts are now zoomable, allow selection and export.
Added USAF Kp, Updated Wing Kp.
Added Ovation Aurora Short Term Forecast.
Added Macquarie Island MAG feed.
Added Mawson MAG Feed.
Added Canberra Feed.
Added MAG feed from (Portobello).
Added Brendan's experemental MAG feed (Hobart).
Fixed cookie bug, One Alert is enough for landscape mode.
> v1.0 (Started 20/10/2014)

  Mawson and Macquarie Island data is copyright Commonwealth of Australia (Geoscience Australia), and redistributed under Creative Commons v4.
Thanks to INTERMAGNET for promoting high standards of magnetic observatory practice in providing access to these feeds. (

Local Australian weather composite maps provided by Oz Forecast

Aurora Forecast is free to use, however it takes a lot of time and effort to maintain.
Why not make a donation to keep it running?
Feedback is always welcome. - ©2020 Brendan Davey