Alerts:
Space Weather Message Code: ALTEF3
Serial Number: 3642
Issue Time: 2026 Mar 09 1442 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3641
Begin Time: 2026 Mar 08 1510 UTC
Yesterday Maximum 2MeV Flux: 2161 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Solar-terrestrial indices for 08 March follow.
Solar flux 135 and estimated planetary A-index 22.
The estimated planetary K-index at 1500 UTC on 09 March 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 Mar 018
Estimated Ap 08 Mar 026
Predicted Ap 09 Mar-11 Mar 012-010-008
NOAA Geomagnetic Activity Probabilities 09 Mar-11 Mar
Active 35/20/20
Minor storm 20/05/05
Moderate storm 05/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 09 Mar - 11 Mar
Mar 09 Mar 10 Mar 11
00-03UT 2.67 2.67 2.33
03-06UT 2.67 3.00 2.00
06-09UT 3.67 2.67 2.67
09-12UT 2.67 2.33 2.67
12-15UT 1.67 2.00 2.00
15-18UT 1.67 1.67 2.00
18-21UT 2.67 1.67 1.67
21-00UT 2.67 2.67 2.00
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 Mar 09-Mar 11 2026 is 3.67 (below NOAA
Scale levels).
NOAA Kp index breakdown Mar 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
00-03UT 2.00 2.67 2.33
03-06UT 1.67 3.00 2.00
06-09UT 1.33 2.67 2.67
09-12UT 1.67 2.33 2.67
12-15UT 3.67 2.00 2.00
15-18UT 2.33 1.67 2.00
18-21UT 2.00 1.67 1.67
21-00UT 1.67 2.67 2.00
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 Mar 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
S1 or greater 1% 1% 1%
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 Mar 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%
Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio
blackouts over 09-11 Mar.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity was low. The majority of C-class X-ray activity
originated from the NE limb. Only minor changes were observed in the
spotted active regions on the Suns visible disk. No Earth-directed CMEs
were detected in available coronagraph imagery.
.Forecast...
Solar activity is expected to be at low levels, with a slight chance for
M-class (R1-R2/Minor-Moderate) flares through 11 Mar.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak
flux of 2,160 pfu observed at 08/1730 UTC. The greater than 10 MeV
proton flux was at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels on
09-11 Mar. The greater than 10 MeV proton flux is expected to continue
at background levels through 11 Mar.
Solar Wind
.24 hr Summary...
The solar wind environment was enhanced under continued negative
polarity CH HSS influences. Total magnetic field strength reached 9 nT,
and the Bz component was observed as far south as -8 nT. Solar wind
speeds were between ~450-550 km/s for most of the reporting period. The
phi angle was predominantly negative.
.Forecast...
Enhanced solar wind conditions are expected to persist through 10 Mar
due primarily to ongoing negative polarity CH HSS influences. Transient
influences are possible on 10 Mar as a CME from 06 Mar passes in close
proximity.
Geospace
.24 hr Summary...
The geomagnetic field reached active levels this period in response to
negative polarity CH HSS influences.
.Forecast...
The geomagnetic field is expected to reach active levels on 09 Mar, and
quiet to unsettled levels on 10-11 Mar, due to ongoing negative polarity
CH HSS influences. Additional enhancements are possible on 10 Mar as a
CME that left the Sun on 06 Mar passes in close proximity.
27 Day Forecast:
Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Mar 09 135 12 4
2026 Mar 10 130 10 3
2026 Mar 11 125 8 3
2026 Mar 12 120 5 2
2026 Mar 13 115 5 2
2026 Mar 14 110 20 5
2026 Mar 15 110 15 4
2026 Mar 16 110 10 3
2026 Mar 17 110 10 3
2026 Mar 18 110 10 3
2026 Mar 19 105 12 4
2026 Mar 20 110 15 4
2026 Mar 21 110 35 6
2026 Mar 22 110 24 5
2026 Mar 23 115 15 4
2026 Mar 24 115 15 4
2026 Mar 25 120 18 5
2026 Mar 26 125 10 3
2026 Mar 27 130 8 3
2026 Mar 28 130 8 3
2026 Mar 29 130 5 2
2026 Mar 30 130 14 3
2026 Mar 31 130 6 2
2026 Apr 01 135 5 2
2026 Apr 02 130 10 3
2026 Apr 03 130 20 5
2026 Apr 04 130 25 5
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