Alerts:
Space Weather Message Code: WARK04
Serial Number: 5238
Issue Time: 2026 Jan 25 1150 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5237
Valid From: 2026 Jan 25 0245 UTC
Now Valid Until: 2026 Jan 25 1800 UTC
Warning Condition: Onset
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: ALTEF3
Serial Number: 3610
Issue Time: 2026 Jan 25 0500 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3609
Begin Time: 2026 Jan 21 0950 UTC
Yesterday Maximum 2MeV Flux: 5171 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: WARK04
Serial Number: 5237
Issue Time: 2026 Jan 25 0248 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jan 25 0245 UTC
Valid To: 2026 Jan 25 1200 UTC
Warning Condition: Onset
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Space Weather Message Code: WARK04
Serial Number: 5236
Issue Time: 2026 Jan 24 1752 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5235
Valid From: 2026 Jan 22 2224 UTC
Now Valid Until: 2026 Jan 24 2359 UTC
Warning Condition: Persistence
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Solar-terrestrial indices for 24 January follow.
Solar flux 174 and estimated planetary A-index 16.
The estimated planetary K-index at 1500 UTC on 25 January was 3.33.
No space weather storms were observed for the past 24 hours.
Space weather for the next 24 hours is predicted to be minor.
Radio blackouts reaching the R1 level are likely.
Geo Magnetic Forecast:
NOAA Ap Index Forecast
Observed Ap 23 Jan 028
Estimated Ap 24 Jan 017
Predicted Ap 25 Jan-27 Jan 008-005-008
NOAA Geomagnetic Activity Probabilities 25 Jan-27 Jan
Active 20/10/25
Minor storm 10/01/10
Moderate storm 01/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 25 Jan - 27 Jan
Jan 25 Jan 26 Jan 27
00-03UT 2.33 1.67 2.33
03-06UT 2.67 1.33 1.67
06-09UT 2.33 1.33 2.00
09-12UT 1.67 1.33 1.67
12-15UT 1.33 1.67 1.67
15-18UT 1.33 1.33 2.00
18-21UT 2.00 1.67 2.00
21-00UT 2.33 1.33 3.33
Extended Three Day Forecast:
A. NOAA Geomagnetic Activity Observation and Forecast
The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Jan 25-Jan 27 2026 is 3.67 (below NOAA
Scale levels).
NOAA Kp index breakdown Jan 25-Jan 27 2026
Jan 25 Jan 26 Jan 27
00-03UT 3.33 1.67 2.33
03-06UT 3.33 1.33 1.67
06-09UT 2.67 1.33 2.00
09-12UT 3.00 1.33 1.67
12-15UT 3.00 1.67 1.67
15-18UT 3.67 1.33 2.00
18-21UT 3.00 1.67 2.00
21-00UT 3.00 1.33 3.33
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-18 over the past 24 hours, was
below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Jan 25-Jan 27 2026
Jan 25 Jan 26 Jan 27
S1 or greater 5% 5% 5%
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 Jan 25-Jan 27 2026
Jan 25 Jan 26 Jan 27
R1-R2 55% 55% 55%
R3 or greater 10% 10% 10%
Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for an R3 (Strong) or greater event, over 25-27 Jan.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity was at low levels. Regions 4341 (S10W67, Cso/beta), 4342
(N15W67, Dso/beta) and 4349 (S14E01, Dso/beta) all produced low level
C-class flares. Region 4351 (S04W27, Cro/beta) produced a C6.3 flare at
25/1030 UTC, which was the largest flare of the period. Regions 4345,
4351 and 4353 exhibited decay and simplification. The remaining numbered
active regions were relatively stable and quiet. The aforementioned C6.3
flare event was accompanied by coronal dimming as evidenced in GOES SUVI
195 imagery, but no subsequent CME has been observed in GOES CCOR-1 as
of the time of this writing. No Earth-directed CMEs were observed in
available coronagraph imagery.
.Forecast...
Solar activity is expected to remain at low levels, with moderate
(R1/R2, Minor/Moderate) levels likely and a slight chance for X-class
flares (R3-Strong) on 25-27 Jan.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak
flux of 5,171 pfu observed at 24/1805 UTC. The greater than 10 MeV
proton flux was below the S1 (Minor) threshold.
.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels on
25-27 Jan. The greater than 10 MeV proton flux is expected to remain at
background levels over 25-27 Jan.
Solar Wind
.24 hr Summary...
Solar wind parameters continued to reflect a positive polarity CH HSS
regime. Total field averaged near 5-7 nT, while the Bz component ranged
between +/- 6 nT. Solar wind speeds underwent a gradual increase, ending
the period near 590 km/s. Phi was predominantly in the positive solar
sector.
.Forecast...
Positive polarity CH HSS effects are expected to gradually diminish over
25-26 Jan. A near ambient-like regime is expected to return for 26 Jan
thru the majority of 27 Jan. The latter half of 27 Jan should see a
negative polarity CH HSS move into a geoeffective position, bringing
additional enhancements to the solar wind environment.
Geospace
.24 hr Summary...
Geomagnetic field activity was at quiet to unsettled levels with an
isolated active period.
.Forecast...
The geomagnetic field is expected to be at quiet to unsettled levels,
with active periods on 25 Jan. Decreasing positive polarity CH HSS
influence on 26-27 Jan should bring geomagnetic activity back to quiet
to unsettled levels. By the end of the day on 27 Jan, conditions are
anticipated to increase to mostly unsettled levels as a negative
polarity CH HSS moves into a geoeffective position.
27 Day Forecast:
Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Jan 19 160 20 4
2026 Jan 20 165 16 4
2026 Jan 21 170 10 3
2026 Jan 22 175 8 3
2026 Jan 23 180 8 3
2026 Jan 24 180 5 2
2026 Jan 25 175 5 2
2026 Jan 26 170 5 2
2026 Jan 27 165 10 3
2026 Jan 28 160 15 4
2026 Jan 29 165 25 5
2026 Jan 30 165 12 4
2026 Jan 31 160 10 3
2026 Feb 01 155 5 2
2026 Feb 02 150 5 2
2026 Feb 03 145 5 2
2026 Feb 04 140 15 4
2026 Feb 05 130 12 4
2026 Feb 06 120 10 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 12 135 5 2
2026 Feb 13 135 20 4
2026 Feb 14 140 15 4
v4.16b
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