Alerts:
Space Weather Message Code: WATA20
Serial Number: 1098
Issue Time: 2026 Mar 03 2305 UTC
WATCH: Geomagnetic Storm Category G1 Predicted
Highest Storm Level Predicted by Day:
Mar 04: None (Below G1) Mar 05: None (Below G1) Mar 06: G1 (Minor)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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: ALTK05
Serial Number: 1971
Issue Time: 2026 Mar 03 2248 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: 2202
Issue Time: 2026 Mar 03 2232 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026 Mar 03 2230 UTC
Valid To: 2026 Mar 04 0300 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: WARK05
Serial Number: 2202
Issue Time: 2026 Mar 03 2230 UTC
WARNING: Geomagnetic K-index of 5 expected
Valid From: 2026 Mar 03 2230 UTC
Valid To: 2026 Mar 04 0300 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: 2637
Issue Time: 2026 Mar 03 2228 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: 5276
Issue Time: 2026 Mar 03 2208 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2026 Mar 03 2208 UTC
Valid To: 2026 Mar 04 0600 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: 3640
Issue Time: 2026 Mar 03 1341 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3639
Begin Time: 2026 Feb 23 1045 UTC
Yesterday Maximum 2MeV Flux: 14496 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Solar-terrestrial indices for 03 March follow.
Solar flux 144 and estimated planetary A-index 16.
The estimated planetary K-index at 0600 UTC on 04 March was 3.00.
Space weather for the past 24 hours has been minor.
Geomagnetic storms reaching the G1 level occurred.
No space weather storms are predicted for the next 24 hours.
Geo Magnetic Forecast:
NOAA Ap Index Forecast
Observed Ap 02 Mar 005
Estimated Ap 03 Mar 010
Predicted Ap 04 Mar-06 Mar 010-008-022
NOAA Geomagnetic Activity Probabilities 04 Mar-06 Mar
Active 50/15/45
Minor storm 01/01/15
Moderate storm 01/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 04 Mar - 06 Mar
Mar 04 Mar 05 Mar 06
00-03UT 3.67 2.33 4.33
03-06UT 3.33 2.33 4.33
06-09UT 2.33 1.00 3.33
09-12UT 2.00 1.33 3.33
12-15UT 1.33 1.00 3.00
15-18UT 2.00 2.33 2.67
18-21UT 2.00 2.33 3.00
21-00UT 2.00 3.33 4.33
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 Mar 04-Mar 06 2026 is 4.67 (NOAA Scale
G1).
NOAA Kp index breakdown Mar 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
00-03UT 4.67 (G1) 2.33 4.33
03-06UT 3.67 2.33 4.33
06-09UT 2.67 1.00 3.33
09-12UT 1.67 1.33 3.33
12-15UT 0.67 1.00 3.00
15-18UT 0.67 2.33 2.67
18-21UT 1.67 2.33 3.00
21-00UT 2.00 3.33 4.33
Rationale: Isolated G1 (Minor) geomagnetic storms are possible on 04 Mar
due to CH HSS influences.
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 Mar 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
S1 or greater 1% 1% 1%
Rationale: No S1 (Minor) or greater solar radiation storms are expected.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Mar 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%
Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong) events, through 06 Mar.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity continued at low levels with isolated C-class flaring.
Regions 4381 (N0830, Eao/beta) and 4384 (N10E53, Eho/beta) remained the
primary drivers of activity. The largest event of the period was a C2.9
flare from Region 4381 at 03/0030 UTC. Region 4384 continues to rotate
further onto the disk, but foreshortening still hinders a definitive
characterization of its magnetic complexity. Region 4378 (N15W07,
Cho/beta) showed some new flux emergence but remained mostly inactive.
Region 4383 (N15W41, Axx/alpha) simplified into a unipolar group
following the loss of its trailing spots, while Region 4380 (S21E05)
decayed to plage. No Earth-directed CMEs were observed in available
coronagraph imagery.
.Forecast...
Solar activity is expected to be at low levels, with a chance for
isolated M-class activity (R1-R2/Minor-Moderate) through 06 Mar.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak of
7,430 pfu observed at 03/0005 UTC. The greater than 10 MeV proton flux
remained at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels on
04-06 Mar. The greater than 10 MeV proton flux is expected to continue
at background levels through 06 Mar.
Solar Wind
.24 hr Summary...
Solar wind parameters reflected the onset of a positive polarity coronal
hole high-speed stream (+CH HSS). Solar wind speed increased to ~450
km/s. Total magnetic field (Bt) intensified, maintaining an average of
~10 nT. The North-South (Bz) component exhibited several southward
deflections, including two sustained southward orientations late in the
period where it reached a maximum deviation of -10 nT. The Phi angle
remained predominantly in a positive (away from the Sun) orientation,
except for those two periods of sustained -Bz.
.Forecast...
Solar wind parameters are expected to remain enhanced on 04 Mar due to
the ongoing influence of the positive polarity coronal hole high-speed
stream (+CH HSS). Residual enhancements are likely to persist on 05 Mar,
keeping conditions slightly above background levels, before another
enhancement is expected on 06 Mar with the onset of a negative polarity
coronal hole high-speed stream (-CH HSS).
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to unsettled levels until the very
end of the reporting period, when G1 (Minor) storming conditions were
reached.
.Forecast...
The geomagnetic field is expected to be at unsettled to active levels on
04 Mar under +CH HSS influences, with a chance for an isolated period of
G1 (Minor) storming levels. Mostly unsettled levels are likely on 05 Mar
as the current streams influence wanes. A return to active and G1
(Minor) storming levels is likely on 06 Mar due to the onset of the
negative polarity CH HSS.
27 Day Forecast:
Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Mar 02 150 10 3
2026 Mar 03 150 12 4
2026 Mar 04 150 8 3
2026 Mar 05 155 5 2
2026 Mar 06 158 8 3
2026 Mar 07 156 5 2
2026 Mar 08 156 8 3
2026 Mar 09 150 10 3
2026 Mar 10 145 18 4
2026 Mar 11 140 10 3
2026 Mar 12 135 15 4
2026 Mar 13 128 10 3
2026 Mar 14 125 15 4
2026 Mar 15 120 15 4
2026 Mar 16 118 10 3
2026 Mar 17 115 10 3
2026 Mar 18 120 10 3
2026 Mar 19 120 12 3
2026 Mar 20 120 15 4
2026 Mar 21 122 35 6
2026 Mar 22 122 24 5
2026 Mar 23 125 15 4
2026 Mar 24 128 15 4
2026 Mar 25 128 18 4
2026 Mar 26 130 10 3
2026 Mar 27 135 8 3
2026 Mar 28 140 8 3
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