Alerts:
Space Weather Message Code: ALTK04
Serial Number: 2570
Issue Time: 2025 Jun 22 0302 UTC
ALERT: Geomagnetic K-index of 4
Synoptic Period: 0000-0300 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: 5010
Issue Time: 2025 Jun 22 0142 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2025 Jun 22 0140 UTC
Valid To: 2025 Jun 22 1500 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: ALTK04
Serial Number: 2569
Issue Time: 2025 Jun 21 1801 UTC
ALERT: Geomagnetic K-index of 4
Synoptic Period: 1500-1800 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.
Solar-terrestrial indices for 21 June follow.
Solar flux 120 and estimated planetary A-index 12.
The estimated planetary K-index at 0900 UTC on 22 June was 1.67.
No space weather storms were observed for the past 24 hours.
Space weather for the next 24 hours is predicted to be moderate.
Radio blackouts reaching the R2 level are likely.
Geo Magnetic Forecast:
NOAA Ap Index Forecast
Observed Ap 20 Jun 009
Estimated Ap 21 Jun 013
Predicted Ap 22 Jun-24 Jun 010-012-012
NOAA Geomagnetic Activity Probabilities 22 Jun-24 Jun
Active 25/40/40
Minor storm 05/15/15
Moderate storm 01/01/01
Strong-Extreme storm 01/01/01
NOAA Kp index forecast 22 Jun - 24 Jun
Jun 22 Jun 23 Jun 24
00-03UT 2.67 2.67 3.00
03-06UT 2.00 2.00 3.67
06-09UT 2.33 2.00 2.00
09-12UT 2.33 2.67 2.67
12-15UT 2.67 3.67 2.67
15-18UT 2.33 2.67 2.67
18-21UT 2.33 2.67 2.67
21-00UT 2.33 3.00 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 Jun 22-Jun 24 2025 is 3.67 (below NOAA
Scale levels).
NOAA Kp index breakdown Jun 22-Jun 24 2025
Jun 22 Jun 23 Jun 24
00-03UT 2.67 2.67 3.00
03-06UT 2.00 2.00 3.67
06-09UT 2.33 2.00 2.00
09-12UT 2.33 2.67 2.67
12-15UT 2.67 3.67 2.67
15-18UT 2.33 2.67 2.67
18-21UT 2.33 2.67 2.67
21-00UT 2.33 3.00 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 Jun 22-Jun 24 2025
Jun 22 Jun 23 Jun 24
S1 or greater 10% 10% 10%
Rationale: There is a slight chance for S1 (Minor) solar radiation
storms over 22-24 Jun.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Jun 22-Jun 24 2025
Jun 22 Jun 23 Jun 24
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 R3 (Strong) or greater events, over 22-24 Jun.
Extended Space Weather Discussion:
Solar Activity
.24 hr Summary...
Solar activity was at low levels. Region 4114 (N20W71, Eso/beta-gamma)
produced an impulsive C1.3 flare at 22/0315 UTC. The region continued to
decay as it headed towards the W limb. Region 4118 (S13E29, Cso/beta)
produced an impulsive C1.0 flare at 22/0602 UTC. Regions 4115 (N22W59,
Cso/beta), 4117 (S15E18, Dsi/beta) and 4118 all exhibited minor
development. No Earth-directed CMEs were observed in available
coronagraph imagery.
.Forecast...
R1-R2 (Minor-Moderate) radio blackouts remain likely, with a slight
chance for X-class flares (R3-Strong), over 22-24 June.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux was at low to moderate levels. The
greater than 10 MeV proton flux was at background levels.
.Forecast...
The greater than 2 MeV electron flux is likely to continue at low to
moderate levels over 21-23 Jun. There remains a slight chance for
protons to become elevated following any significant activity from
multiple regions on the visible disk.
Solar Wind
.24 hr Summary...
Solar wind parameters continued to reflect a positive polarity CH HSS
regime. Total magnetic field strength was between 6-10 nT. The Bz
component reached as far south as -7 nT. Solar wind speeds varied from
~450-575 km/s. Phi angle was predominantly oriented in the positive
sector.
.Forecast...
Elevated solar wind parameters from the influence of a positive polarity
coronal hole is likely to persist over 22-24 Jun.
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to active levels.
.Forecast...
Quiet to unsettled conditions are likely over 22 Jun due to continued
coronal hole effects. Active conditions are possible over 23-24 Jun.
27 Day Forecast:
Date | Radio Flux | Planetary A Index | Largest Kp Index
2025 Jun 16 150 15 5
2025 Jun 17 145 10 4
2025 Jun 18 140 12 4
2025 Jun 19 140 5 2
2025 Jun 20 140 5 2
2025 Jun 21 138 5 2
2025 Jun 22 135 5 2
2025 Jun 23 125 8 3
2025 Jun 24 125 12 4
2025 Jun 25 130 25 5
2025 Jun 26 125 20 5
2025 Jun 27 125 15 4
2025 Jun 28 120 8 3
2025 Jun 29 115 5 2
2025 Jun 30 115 5 2
2025 Jul 01 115 15 4
2025 Jul 02 110 15 4
2025 Jul 03 110 12 4
2025 Jul 04 110 5 2
2025 Jul 05 115 15 4
2025 Jul 06 120 15 4
2025 Jul 07 130 12 4
2025 Jul 08 140 10 3
2025 Jul 09 145 8 3
2025 Jul 10 150 5 2
2025 Jul 11 155 15 4
2025 Jul 12 160 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