Alerts:
Space Weather Message Code: WARK04
Serial Number: 5305
Issue Time: 2026 Mar 30 0855 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 5304
Valid From: 2026 Mar 29 1546 UTC
Now Valid Until: 2026 Mar 30 2359 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: 3661
Issue Time: 2026 Mar 30 0742 UTC
CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3660
Begin Time: 2026 Mar 22 1430 UTC
Yesterday Maximum 2MeV Flux: 3755 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: WATA30
Serial Number: 268
Issue Time: 2026 Mar 30 0627 UTC
WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Mar 30: G1 (Minor) Mar 31: G2 (Moderate) Apr 01: 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 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: SUM10R
Serial Number: 903
Issue Time: 2026 Mar 30 0543 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2026 Mar 30 0254 UTC
Maximum Time: 2026 Mar 30 0304 UTC
End Time: 2026 Mar 30 0342 UTC
Duration: 48 minutes
Peak Flux: 1800 sfu
Latest Penticton Noon Flux: 158 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Space Weather Message Code: SUMX01
Serial Number: 214
Issue Time: 2026 Mar 30 0518 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026 Mar 30 0247 UTC
Maximum Time: 2026 Mar 30 0319 UTC
End Time: 2026 Mar 30 0344 UTC
X-ray Class: X1,4
Location: S27E42
NOAA Scale: R3 - Strong
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Space Weather Message Code: SUMX01
Serial Number: 213
Issue Time: 2026 Mar 30 0516 UTC
CANCEL SUMMARY: X-ray Event exceeded X1
Cancel Serial Number: 212
Original Issue Time: 2026 Mar 30 0353 UTC
Comment: The flare maximum was recorded as an X1.4.
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Space Weather Message Code: SUMX01
Serial Number: 212
Issue Time: 2026 Mar 30 0353 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2026 Mar 30 0247 UTC
Maximum Time: 2026 Mar 30 0319 UTC
End Time: 2026 Mar 30 0344 UTC
X-ray Class: X1.5
Location: S27E42
NOAA Scale: R3 - Strong
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Space Weather Message Code: ALTTP2
Serial Number: 1473
Issue Time: 2026 Mar 30 0322 UTC
ALERT: Type II Radio Emission
Begin Time: 2026 Mar 30 0300 UTC
Estimated Velocity: 1872 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Space Weather Message Code: ALTXMF
Serial Number: 521
Issue Time: 2026 Mar 30 0307 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2026 Mar 30 0306 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.
Solar-terrestrial indices for 29 March follow.
Solar flux 158 and estimated planetary A-index 14.
The estimated planetary K-index at 1800 UTC on 30 March was 2.00.
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.
Geomagnetic storms reaching the G2 level are likely.
Radio blackouts reaching the R1 level are likely.
Geo Magnetic Forecast:
NOAA Ap Index Forecast
Observed Ap 28 Mar 011
Estimated Ap 29 Mar 016
Predicted Ap 30 Mar-01 Apr 022-012-008
NOAA Geomagnetic Activity Probabilities 30 Mar-01 Apr
Active 30/40/25
Minor storm 40/15/05
Moderate storm 15/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 30 Mar - 01 Apr
Mar 30 Mar 31 Apr 01
00-03UT 4.67 3.67 2.33
03-06UT 4.67 3.00 2.00
06-09UT 4.00 2.67 2.00
09-12UT 2.67 2.00 2.00
12-15UT 2.33 2.00 2.00
15-18UT 2.67 2.33 2.00
18-21UT 3.00 2.67 2.00
21-00UT 3.67 2.67 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 30-Apr 01 2026 is 5.67 (NOAA Scale
G2).
NOAA Kp index breakdown Mar 30-Apr 01 2026
Mar 30 Mar 31 Apr 01
00-03UT 2.67 3.67 5.00 (G1)
03-06UT 2.67 3.00 4.67 (G1)
06-09UT 3.33 2.67 4.33
09-12UT 3.00 2.00 4.00
12-15UT 2.33 4.67 (G1) 3.00
15-18UT 2.33 5.67 (G2) 2.67
18-21UT 3.00 5.67 (G2) 2.00
21-00UT 3.67 5.00 (G1) 2.33
Rationale: G1 (Minor) geomagnetic storming is likely on 30 Mar due to
recurrent positive polarity CH HSS effects. Enhancements are likely to
be further increased to G2 (Major) levels midday to late on 31 Mar due
to possible CME effects from the 30 Mar X1.4 major flare event. Active
to G1 (Minor) levels are then expected into 01 Apr due to continued CH
HSS and CME effects.
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 30-Apr 01 2026
Mar 30 Mar 31 Apr 01
S1 or greater 10% 50% 50%
Rationale: The greater than 10 MeV proton flux is likely to exceed event
levels (S1/Minor) on 31 Mar through 01 Apr.
C. NOAA Radio Blackout Activity and Forecast
Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at Mar 30 2026 0319 UTC.
Radio Blackout Forecast for Mar 30-Apr 01 2026
Mar 30 Mar 31 Apr 01
R1-R2 55% 55% 55%
R3 or greater 10% 10% 10%
Rationale: Solar activity is expected to be low with M-class flares
(R1-R2/Minor-Moderate) likely through 01 Apr and a slight chance of
X-class flares (R3/Strong) through 01 Apr.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity reached high levels due to an X1.4 flare (R3/Strong) at
30/0319 UTC from Region 4405 (S27E37, Eao/beta-gamma). This event also
produced a Type II Sweep at 30/0300 UTC with an escape velocity of 1,872
km/s. Weak C-class flare activity was also observed from Regions 4401
(N25W33, Eao/beta) and 4407 (N18E38, Bxo/beta). Region 4401 underwent
decay and magnetic simplification in its intermediate area. Region 4405
gained an additional trailing spot with maturing penumbra.
A partial-halo CME was observed in LASCO c2 imagery beginning at 30/0312
UTC originating from the SE limb associated with the X1.4 flare
mentioned earlier.
.Forecast...
Solar activity is expected to be low with M-class flares
(R1-R2/Minor-Moderate) likely through 01 Apr and a slight chance pf
X-class flares (R3/Strong) through 01 Apr.
Energetic Particle
.24 hr Summary...
Electrons greater than 2 MeV at geosynchronous orbit reached a peak
level of 3,750 pfu at 29/1520 UTC. The greater than 10 MeV proton flux
remained at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to be at normal to
moderate levels on 31 Mar, with high levels likely on 01 Apr. The
greater than 10 MeV proton flux is likely to exceed event levels
(S1/Minor) on 31 Mar through 01 Apr.
Solar Wind
.24 hr Summary...
Solar wind parameters were indicative of a solar sector boundary
crossing. Total field increased from 6 nT to a peak of 13 nT. The Bz
component underwent a few early southward deflections reaching -6 nT,
but was mostly near neutral or northward after. Solar wind speeds
increased from near 365 km/s and to near 500 km/s by the end of the
reporting period. Phi became positive at approximately 29/1412 UTC.
.Forecast...
Additional enhancements due to CIR and HSS influences are expected later
on 30 Mar and continuing through 31 Mar. Further enhancements are likely
associated with CME impacts middle to late on 31 Mar and continuing into
01 Apr.
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to unsettled levels.
.Forecast...
G1 (Minor) geomagnetic storming is likely on 30 Mar due to recurrent
positive polarity CH HSS effects. Enhancements are likely to be further
increased to G2/Major levels midday to late on 31 Mar due to possible
CME effects from the 30 Mar X1.4 major flare event. Active to G1/Minor
levels are then expected into 01 Apr due to continued CH HSS and CME
effects.
27 Day Forecast:
Date | Radio Flux | Planetary A Index | Largest Kp Index
2026 Mar 30 155 22 5
2026 Mar 31 152 12 4
2026 Apr 01 155 8 3
2026 Apr 02 155 5 2
2026 Apr 03 150 18 4
2026 Apr 04 145 22 5
2026 Apr 05 145 10 3
2026 Apr 06 135 15 4
2026 Apr 07 125 8 3
2026 Apr 08 118 7 2
2026 Apr 09 120 25 5
2026 Apr 10 110 40 6
2026 Apr 11 112 20 5
2026 Apr 12 115 12 4
2026 Apr 13 115 8 3
2026 Apr 14 110 7 2
2026 Apr 15 115 5 2
2026 Apr 16 115 4 2
2026 Apr 17 120 7 2
2026 Apr 18 122 48 6
2026 Apr 19 124 22 5
2026 Apr 20 130 12 4
2026 Apr 21 140 12 4
2026 Apr 22 150 8 3
2026 Apr 23 155 5 2
2026 Apr 24 160 8 3
2026 Apr 25 155 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