Alerts:
Space Weather Message Code: WARK05
Serial Number: 2181
Issue Time: 2026 Jan 23 1456 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2180
Valid From: 2026 Jan 22 2325 UTC
Now Valid Until: 2026 Jan 23 2100 UTC
Warning Condition: Persistence
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.
Space Weather Message Code: WARK04
Serial Number: 5233
Issue Time: 2026 Jan 23 1456 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5232
Valid From: 2026 Jan 22 2224 UTC
Now Valid Until: 2026 Jan 23 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.
Space Weather Message Code: WARK04
Serial Number: 5232
Issue Time: 2026 Jan 23 0903 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5231
Valid From: 2026 Jan 22 2224 UTC
Now Valid Until: 2026 Jan 23 1800 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.
Space Weather Message Code: WARK05
Serial Number: 2180
Issue Time: 2026 Jan 23 0854 UTC
EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 2179
Valid From: 2026 Jan 22 2325 UTC
Now Valid Until: 2026 Jan 23 1500 UTC
Warning Condition: Onset
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.
Space Weather Message Code: ALTEF3
Serial Number: 3608
Issue Time: 2026 Jan 23 0459 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3607
Begin Time: 2026 Jan 21 0950 UTC
Yesterday Maximum 2MeV Flux: 5365 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: WARK04
Serial Number: 5231
Issue Time: 2026 Jan 23 0000 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5230
Valid From: 2026 Jan 22 2224 UTC
Now Valid Until: 2026 Jan 23 1500 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.
Space Weather Message Code: WARK06
Serial Number: 638
Issue Time: 2026 Jan 22 2339 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2026 Jan 22 2339 UTC
Valid To: 2026 Jan 23 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Space Weather Message Code: ALTK05
Serial Number: 1961
Issue Time: 2026 Jan 22 2329 UTC
ALERT: Geomagnetic K-index of 5
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
NOAA Scale: G1 - Minor
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.
Space Weather Message Code: WARK05
Serial Number: 2179
Issue Time: 2026 Jan 22 2325 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026 Jan 22 2325 UTC
Valid To: 2026 Jan 23 0900 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor
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.
Space Weather Message Code: ALTK04
Serial Number: 2625
Issue Time: 2026 Jan 22 2300 UTC
ALERT: Geomagnetic K-index of 4
Synoptic Period: 2100-2400 UTC
Active Warning: Yes
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: 5230
Issue Time: 2026 Jan 22 2224 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Jan 22 2224 UTC
Valid To: 2026 Jan 23 0900 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: SUMPX1
Serial Number: 127
Issue Time: 2026 Jan 22 1754 UTC
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2026 Jan 18 2255 UTC
Maximum Time: 2026 Jan 19 1915 UTC
End Time: 2026 Jan 22 0545 UTC
Maximum 10MeV Flux: 37000 pfu
NOAA Scale: S4 - Severe
www.swpc.noaa.gov/noaa-scales-explanation
Solar-terrestrial indices for 22 January follow.
Solar flux 194 and estimated planetary A-index 18.
The estimated planetary K-index at 1500 UTC on 23 January was 4.00.
Space weather for the past 24 hours has been minor.
Geomagnetic storms reaching the G1 level occurred.
Space weather for the next 24 hours is predicted to be minor.
Geomagnetic storms reaching the G1 level are expected.
Radio blackouts reaching the R1 level are likely.
Geo Magnetic Forecast:
NOAA Ap Index Forecast
Observed Ap 21 Jan 073
Estimated Ap 22 Jan 013
Predicted Ap 23 Jan-25 Jan 012-010-008
NOAA Geomagnetic Activity Probabilities 23 Jan-25 Jan
Active 40/25/20
Minor storm 15/10/10
Moderate storm 01/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 23 Jan - 25 Jan
Jan 23 Jan 24 Jan 25
00-03UT 3.00 3.00 2.33
03-06UT 3.67 3.00 2.67
06-09UT 2.67 2.33 2.33
09-12UT 2.67 2.33 1.67
12-15UT 2.33 1.67 1.33
15-18UT 2.00 1.67 1.33
18-21UT 2.00 2.00 2.00
21-00UT 2.33 2.33 2.33
Extended Three Day Forecast:
A. NOAA Geomagnetic Activity Observation and Forecast
The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Jan 23-Jan 25 2026 is 4.67 (NOAA Scale
G1).
NOAA Kp index breakdown Jan 23-Jan 25 2026
Jan 23 Jan 24 Jan 25
00-03UT 4.33 3.00 2.33
03-06UT 4.00 3.00 2.67
06-09UT 3.67 2.33 2.33
09-12UT 4.33 2.33 1.67
12-15UT 4.67 (G1) 1.67 1.33
15-18UT 3.67 1.67 1.33
18-21UT 2.33 2.00 2.00
21-00UT 2.67 2.33 2.33
Rationale: G1 (Minor) geomagnetic storms are possible on 23 Jan due to
periods of sustained -Bz in an ongoing high speed stream.
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 23-Jan 25 2026
Jan 23 Jan 24 Jan 25
S1 or greater 10% 10% 10%
Rationale: There is a slight chance for S1 (Minor) or greater solar
radiation storms on 23-25 Jan.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Jan 23-Jan 25 2026
Jan 23 Jan 24 Jan 25
R1-R2 60% 60% 60%
R3 or greater 10% 10% 10%
Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely, with a
slight chance for R3 (Strong) events, on 23-25 Jan.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity was at low levels. C-class flaring was observed from
Regions 4342 (N13W45, Dso/beta), 4345 (S17W42, Eai/beta-delta), 4351
(S05W08, Dai/beta), and 4353 (N17W03, Dao/beta-delta). The largest flare
was a C9.5 at 22/1954 UTC. Slight growth was observed in Regions 4348
(S17W71, Cro/beta), 4351, 4353 and new Region 4354 (S13W00, Bxo/beta).
Regions 4344 (N19W56, L=52) and 4350 (N21E04, L=353) decayed to plage.
All remaining regions were either stable or in slight decay.
No Earth-directed CMEs were observed.
.Forecast...
Solar activity is likely (60%) to be at moderate (R1/R2, Minor/Moderate)
levels, with a slight chance (10%) for X-class flares (R3-Strong) on
23-25 Jan, primarily due to the magnetic potential of Regions 4342,
4345, 4351, and 4353.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak
flux of 5,365 pfu observed at 22/1420 UTC. The greater than 10 MeV
proton flux was below the S1 (Minor) threshold and still returning to
background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels on
23-25 Jan. The greater than 10 MeV proton enhancement is expected to
continue to decline towards background levels over 23-25 Jan.
Solar Wind
.24 hr Summary...
Solar wind parameters reflected high speed stream activity. Solar wind
speed fluctuated between ~500-550 km/s. The total magnetic field (Bt)
slowly decreased over the reporting period from ~10 nT to ~5 nT, while
the Bz (north-south) component was between +8/-7 nT with two intervals
of sustained ~-7 nT: one for 4 hrs starting at starting at 22/2045 UTC
and another for 2 hrs starting at 23/0645 UTC. Phi angle was variable
but largely positive (away from the Sun) for the majority of the
reporting period.
.Forecast...
Solar wind parameters are expected to gradually diminish with possible
intermittent connections with the positive polarity CH HSS over 23-25
Jan.
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to G1 (Minor) storm levels due to a
period of sustained southward Bz at the end of the reporting period.
.Forecast...
The geomagnetic field is expected to be at unsettled to G1 (Minor)
levels on 23 Jan as HSS activity persists. Quiet to unsettled levels are
expected on 24-25 Jan as HSS activity gradually wanes.
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