Presets:


close
Ovation: South
North
Weather: TAS
Presets: Presets

Alerts:
Space Weather Message Code: SUMXM5
Serial Number: 309
Issue Time: 2026 Feb 03 0725 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2026 Feb 03 0643 UTC
Maximum Time: 2026 Feb 03 0701 UTC
End Time: 2026 Feb 03 0719 UTC
X-ray Class: M7.2
Location: N14E17
NOAA Scale: R2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Space Weather Message Code: ALTXMF
Serial Number: 517
Issue Time: 2026 Feb 03 0702 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Feb 03 0700 UTC
NOAA Scale: R2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

Space Weather Message Code: ALTEF3
Serial Number: 3619
Issue Time: 2026 Feb 03 0459 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3618
Begin Time: 2026 Jan 21 0950 UTC
Yesterday Maximum 2MeV Flux: 7292 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

Space Weather Message Code: SUMXM5
Serial Number: 308
Issue Time: 2026 Feb 02 1143 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2026 Feb 02 1115 UTC
Maximum Time: 2026 Feb 02 1124 UTC
End Time: 2026 Feb 02 1131 UTC
X-ray Class: M6.7
Location: N18E30
NOAA Scale: R2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

Space Weather Message Code: ALTXMF
Serial Number: 516
Issue Time: 2026 Feb 02 1123 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Feb 02 1121 UTC
NOAA Scale: R2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

Space Weather Message Code: WATA20
Serial Number: 1092
Issue Time: 2026 Feb 02 1031 UTC

WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Feb 03:  None (Below G1)   Feb 04:  None (Below G1)   Feb 05:  G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Comment: CME(s) associated with a complex eruption during the X8.1 event from Region 4366 will likely deliver glancing influences by late on 05 Feb leading to possible minor geomagnetic storming conditions.
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.


Solar-terrestrial indices for 02 February follow.
Solar flux 174 and estimated planetary A-index 6.
The estimated planetary K-index at 0900 UTC on 03 February was 1.00.

Space weather for the past 24 hours has been strong.
Radio blackouts reaching the R3 level occurred.

Space weather for the next 24 hours is predicted to be moderate.
Radio blackouts reaching the R2 level are expected.


Geo Magnetic Forecast:

NOAA Ap Index Forecast
Observed Ap 01 Feb 004
Estimated Ap 02 Feb 007
Predicted Ap 03 Feb-05 Feb 005-005-016

NOAA Geomagnetic Activity Probabilities 03 Feb-05 Feb
Active                10/10/25
Minor storm           01/01/35
Moderate storm        01/01/15
Strong-Extreme storm  01/01/01

NOAA Kp index forecast 03 Feb - 05 Feb
             Feb 03    Feb 04    Feb 05
00-03UT        1.67      1.67      2.00
03-06UT        1.33      1.67      2.00
06-09UT        1.00      1.33      1.67
09-12UT        1.00      1.33      1.33
12-15UT        0.67      1.33      1.33
15-18UT        1.33      1.33      3.00
18-21UT        1.67      1.33      4.33
21-00UT        1.67      1.67      5.00


Extended Three Day Forecast:

A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 03-Feb 05 2026 is 5.00 (NOAA Scale
G1).

NOAA Kp index breakdown Feb 03-Feb 05 2026

             Feb 03       Feb 04       Feb 05
00-03UT       1.67         1.67         2.00
03-06UT       1.33         1.67         2.00
06-09UT       1.00         1.33         1.67
09-12UT       1.00         1.33         1.33
12-15UT       0.67         1.33         1.33
15-18UT       1.33         1.33         3.00
18-21UT       1.67         1.33         4.33
21-00UT       1.67         1.67         5.00 (G1)

Rationale: G1 (Minor) geomagnetic storm levels are likely on 05 Feb due
to possible glancing influences from the CME associated with the 01/2357
UTC X8.1 flare from Region 4366.

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 Feb 03-Feb 05 2026

              Feb 03  Feb 04  Feb 05
S1 or greater   50%     50%     50%

Rationale: There is a chance for the greater than 10 MeV proton flux to
exceed the S1 (Minor) levels on 03-05 Feb due to the recent X8.1 flare
event from Region 4366 and possible future eruptions.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at Feb 02 2026 0036 UTC.

Radio Blackout Forecast for Feb 03-Feb 05 2026

              Feb 03        Feb 04        Feb 05
R1-R2           80%           80%           80%
R3 or greater   40%           40%           40%

Rationale: Moderate to high solar activity due to M-class flaring
(R1-R2, Minor-Moderate) is expected for the next three days with a high
chance for occasional X-class flares (R3-Strong or greater) due to
expected further activity from AR 4366.


Extended Space Weather Discussion:

Solar Activity

.24 hr Summary...
Solar activity was at high levels and dominated by Region 4366 (N14E21,
Ekc/beta-gamma-delta) with negligible contributions from the remaining
disk. Region 4366 continued its growth phase and exhibited an
increasingly complex delta configuration and increased intermediary
spots. Region 4366 produced several M-class flares and two X-class
flares during the reporting period. The X-class events were an X2.8
flare at 02/0036 UTC and an X1.6 flare at 02/0814 UTC. New Regions 4370
(S18E64, Cro/beta) and 4371 (S22E70, Bxo/beta) were numbered as they
rotated into view from the East limb, though foreshortening and limb
proximity continue to complicate a definitive assessment of their true
size and complexity. The other four active regions on the visible solar
disk remained stable with no appreciable growth or signs of development.

Radio signatures of note were observed in conjunction with the major
flaring activity from Region 4366. A Type II radio sweep was detected by
USAF observatories starting at about 02/0000 UTC, with an estimated
velocity of 955 km/s.

Multiple eruptive fronts were observed departing to the northeast, first
becoming visible in LASCO imagery at 02/0012 UTC. These are believed to
be associated with an X8.1/2N flare at 01/2357 UTC from Region 4366
(associated with a Type-II burst, est. velocity 873 km/s). Additionally,
a narrow eruption off to the northwest was observed in coronagraph
imagery at approximately the same time. Data gaps and image quality
issues further complicated the analysis of these events. Modeling of
these complex eruptions continues; however, current analysis shows that
a glancing blow impact is expected on 05 Feb.

.Forecast...
Moderate to high solar activity due to M-class flaring is expected for
the next three days with a high chance for occasional X-class flares due
to expected further activity from AR 4366.

Energetic Particle

.24 hr Summary...
The greater than 10 MeV proton flux at geosynchronous orbit remained at
background levels.  The greater than 2 MeV electron flux reached high
levels during the period, with a peak of 7,290 pfu at 02/2030 UTC.

.Forecast...
The greater than 2 MeV electron flux is expected to remain at moderate
to high levels through 05 Feb. There is a chance for the greater than 10
MeV proton flux to exceed the S1 (Minor) levels on 03-05 Feb due to the
recent X8.1 flare event from Region 4366 and possible future eruptions.

Solar Wind

.24 hr Summary...
Available solar wind measurements at L1 reflected background conditions
without an indication of transient or recurrent influences. Total
magnetic field (Bt) remained between 4 and 7 nT. The Bz component was
mostly negative, with a southernmost deflection of -6 nT. Solar wind
speeds were stable around 300–315 km/s. The Phi angle was mostly in the
negative (Towards) orientation.

.Forecast...
A quiescent solar wind regime is expected to continue through 04 Feb
barring any significant eruptive events. Disturbances in the solar wind
are expected on 05 Feb with the arrival of a CME associated with the
X8.1 flare.

Geospace

.24 hr Summary...
The geomagnetic field was quiet with an isolated unsettled synoptic
period.

.Forecast...
The geomagnetic field is expected to remain quiet through 04 Feb.
Activity is expected to increase from unsettled to G1 (Minor) storm
levels on 05 Feb due to the anticipated arrival of the complex CME
ejecta associated with the 01/2357 UTC X8.1 flare from Region 4366.


27 Day Forecast:

Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Feb 02     160           5          2
2026 Feb 03     155           5          2
2026 Feb 04     155           5          2
2026 Feb 05     145           5          2
2026 Feb 06     120           8          3
2026 Feb 07     125           8          3
2026 Feb 08     130           8          3
2026 Feb 09     135          10          3
2026 Feb 10     140           8          3
2026 Feb 11     135           8          3
2026 Feb 12     140           5          2
2026 Feb 13     145          20          5
2026 Feb 14     145          15          4
2026 Feb 15     155          15          4
2026 Feb 16     160          15          4
2026 Feb 17     170          15          4
2026 Feb 18     180          15          4
2026 Feb 19     175          15          4
2026 Feb 20     170          15          4
2026 Feb 21     160          15          4
2026 Feb 22     150           8          3
2026 Feb 23     140           8          3
2026 Feb 24     135          20          4
2026 Feb 25     130          20          4
2026 Feb 26     130           8          3
2026 Feb 27     140           5          2
2026 Feb 28     160           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.

 

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