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Alerts:
Space Weather Message Code: ALTEF3
Serial Number: 3669
Issue Time: 2026 Apr 08 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3668
Begin Time: 2026 Apr 03 0920 UTC
Yesterday Maximum 2MeV Flux: 7359 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Solar-terrestrial indices for 08 April follow.
Solar flux 108 and estimated planetary A-index 7.
The estimated planetary K-index at 0300 UTC on 09 April was 1.67.

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 07 Apr 009
Estimated Ap 08 Apr 008
Predicted Ap 09 Apr-11 Apr 008-024-032

NOAA Geomagnetic Activity Probabilities 09 Apr-11 Apr
Active                15/30/25
Minor storm           01/45/35
Moderate storm        01/05/20
Strong-Extreme storm  01/01/05

NOAA Kp index forecast 09 Apr - 11 Apr
             Apr 09    Apr 10    Apr 11
00-03UT        3.33      2.33      4.67
03-06UT        3.00      5.00      4.00
06-09UT        1.67      4.67      4.00
09-12UT        1.00      3.67      4.00
12-15UT        0.67      2.67      4.00
15-18UT        1.33      2.67      4.00
18-21UT        1.33      3.67      4.67
21-00UT        1.67      4.00      4.67

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 Apr 09-Apr 11 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Apr 09-Apr 11 2026

             Apr 09       Apr 10       Apr 11
00-03UT       3.33         2.33         4.67 (G1)
03-06UT       3.00         5.00 (G1)    4.00
06-09UT       1.67         4.67 (G1)    4.00
09-12UT       1.00         3.67         4.00
12-15UT       0.67         2.67         4.00
15-18UT       1.33         2.67         4.00
18-21UT       1.33         3.67         4.67 (G1)
21-00UT       1.67         4.00         4.67 (G1)

Rationale: G1 (Minor) or greater geomagnetic storms are likely on 10 and
11 Apr due to the onset of a positive polarity coronal hole high speed
stream influence.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Apr 09-Apr 11 2026

              Apr 09  Apr 10  Apr 11
S1 or greater   10%     10%     10%

Rationale: There is a slight chance for the greater than 10 MeV proton
flux to exceed S1 (Minor) solar radiation storm level on 09-11 Apr.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Apr 09-Apr 11 2026

              Apr 09        Apr 10        Apr 11
R1-R2           35%           35%           25%
R3 or greater   10%           10%            5%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through 11 Apr, with a slight chance for R3 (Strong) or greater events
through 10 Apr.

Extended Space Weather Discussion:

Solar Activity

.24 hr Summary...
Solar activity was at low levels, with the largest flare of the
past 24-hours being a C8.9 at 08/1543 UTC from Region 4414 (N15W62,
Dro/beta), which was accompanied by Type-III radio bursts. Most of
the C-class activity came from either this region or Region 4409
(N01W71, Esi/beta-delta), which has developed a delta spot in its
intermediary area. All remaining spots were either stable or in slight
decay, with Region 4406 (N07, L=183) rotating over the West limb by
the end of the reporting period.

Coronal activity was observed in CCOR-1, LASCO and STEREO available
imagery during the period. Of the four eruptions, one was far-sided, one
was too narrow plus too far north of the ecliptic to have any
Earth-directed component, and two had the potential for Earth-directed
components. These eruptions where the eruptions seen off the eastern
limb in LASCO C2 starting at 07/2336 UTC and at 08/0536 UTC. The first
was associated with a C2.4 flare from Region 4414 (07/2320 UTC), while
there was no clear source for the second. Modeling indicates these
eruptions will pass behind Earths orbit and no impact is anticipated.

Eruptions potentially associated with the C8.9 are currently being
analyzed.

.Forecast...
Solar activity is expected to be at low levels over 09-11 Apr, with a
chance for M-class (R1-R2/Minor-Moderate) flares and a slight chance for
X-class (R3/Strong or greater) flares, driven primarily by the flare
potential of Regions 4409 and 4414.

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at high levels with a peak
flux of 7,322 pfu at 08/1555 UTC. The greater than 10 MeV proton flux
was at background levels and exhibiting slight contamination from the
high electron flux levels.

.Forecast...
The greater than 2 MeV electron flux is expected to continue to reach
high levels through 09 Apr, with a drop to moderate on 10-11 Apr. The
greater than 10 MeV proton flux is expected to remain at background
levels.

Solar Wind

.24 hr Summary...
Solar wind parameters reflected the high range of nominal conditions.
Wind speeds averaged 400 km/s. Total magnetic field (Bt) averaged around
5 nT while the North-South (Bz) component varied between +/- 5 nT. Phi
angle was oriented predominantly towards the Sun (negative).

.Forecast...
Solar wind parameters are expected to remain at nominal conditions on 09
Apr, before becoming disturbed on 10 Apr and elevated on 11 Apr, due to
the anticipated arrival of a CIR and positive polarity coronal hole high
speed stream.

Geospace

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

.Forecast...
The geomagnetic field is expected to be at mostly quiet levels with
isolated unsettled periods on 09 Apr. G1 (Minor) storming conditions
are anticipated on 10-11 Apr due to the arrival of the aforementioned
CIR.

27 Day Forecast:

Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Apr 06     118          10          3
2026 Apr 07     115           8          3
2026 Apr 08     113           5          2
2026 Apr 09     111           5          2
2026 Apr 10     108          12          4
2026 Apr 11     106          18          5
2026 Apr 12     105          10          4
2026 Apr 13     108           8          3
2026 Apr 14     110           7          2
2026 Apr 15     115           5          2
2026 Apr 16     115           4          2
2026 Apr 17     120           7          2
2026 Apr 18     122          48          6
2026 Apr 19     124          22          5
2026 Apr 20     130          12          4
2026 Apr 21     140          12          4
2026 Apr 22     150           8          3
2026 Apr 23     155           5          2
2026 Apr 24     160           8          3
2026 Apr 25     155          12          4
2026 Apr 26     150          10          3
2026 Apr 27     145           5          2
2026 Apr 28     140           5          2
2026 Apr 29     140          20          5
2026 Apr 30     135          18          5
2026 May 01     130          12          4
2026 May 02     120           8          3

Save as 'My Presets'

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.
From Date: (YYYY-MM-DD HH:MM). Leave empty for real-time.

Range: (in hours, WARNING 1 hour = ~10KB of data)
Local Time Zone:
Enable Forecast / Timeshift (Recommended) Enable Fixed Y Axis Values Combine Y Series (B*, Proton, Dyn Preasure & Kp). Show Axis Titles Show Graph Legend (Keys) Enable Auto Update (Range will be reduced to 2 hours) Enable Night Vision Red Theme

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.

AF Index (Experemental) AF Community Activity (Hits)
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.

SWPC Kp (Observation)
SWPC Kp (Prediction) GeoSpace Kp (Prediction) Wing Kp (Legacy : Date < 22/06/18)
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.

Northern Hemisphere (Aurora Borealis) Southern Hemisphere (Aurora Australis)
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.

Mag Bt (Total Strength) Mag Bx (X Axis) Mag By (Y Axis) Mag Bz (Z Axis) Solar Wind Speed Proton Density Dynamic Pressure (Calculated)
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.
Show ACE (When enabled the forecasting / timeshift feature will be disabled)
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.

Primary Secondary Variation (Pri - Sec)
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.

Macquarie Island (Intermagnet / Geo Science Aus) Mawson (Intermagnet / Geo Science Aus) Canberra (Intermagnet / Geo Science Aus) Ruru Obseratory (www.ruruobseratory.org.nz / NZ) Aurora Forecast #1 (Hobart) Aurora Forecast #2 (Hobart) Aurora Forecast #3 (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.

v4.16b

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.

v3.8x
Various Updates, New AF Index Algo. (8/12/18)

v3.6x
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 www.dunedinaurora.nz (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)

v3.5x
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).

v2.0
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 www.dunedinaurora.nz (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. (www.intermagnet.org).

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. - ©2022 Brendan Davey

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.

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.