WWV Solar Terrestrial Reports Solar Terrestrial Reports from NOAA Space Weather Prediction Center http://www.n2jtx.com/wwv.cgi en Wed, 22 Apr 2026 00:10:02 GMT robert@schaffrath.net (Robert G. Schaffrath) robert@schaffrath.net (Robert G. Schaffrath) wwv-update.js (Node.js v22.22.0) 2026-04-22@0000Z 2026-04-22 0000Z SFI=112, A=19, K=2.00, Minor/G1;None Solar-terrestrial indices for 21 April follow.
Solar flux 112 and estimated planetary A-index 19.
The estimated planetary K-index at 0000 UTC on 22 April was 2.00.

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.


]]> https://services.swpc.noaa.gov/text/wwv.txt 2026-04-21@2100Z 2026-04-21 2100Z SFI=112, A=20, K=3.00, Minor/G1;None Solar-terrestrial indices for 21 April follow.
Solar flux 112 and estimated planetary A-index 20.
The estimated planetary K-index at 2100 UTC on 21 April 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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@1800Z 2026-04-21 1800Z SFI=105, A=24, K=4.00, Minor/G1;????? Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 1800 UTC on 21 April 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 ?????.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@1500Z 2026-04-21 1500Z SFI=105, A=24, K=3.33, Minor/G1;None Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 1500 UTC on 21 April was 3.33.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@1200Z 2026-04-21 1200Z SFI=105, A=24, K=2.00, Minor/G1;Minor/G1 Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 1200 UTC on 21 April was 2.00.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@0900Z 2026-04-21 0900Z SFI=105, A=24, K=2.33, Minor/G1;Minor/G1 Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 0900 UTC on 21 April was 2.33.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@0600Z 2026-04-21 0600Z SFI=105, A=24, K=4.33, Minor/G1;Minor/G1 Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 0600 UTC on 21 April was 4.33.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@0300Z 2026-04-21 0300Z SFI=105, A=24, K=4.67, Minor/G1;Minor/G1 Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 0300 UTC on 21 April was 4.67.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-21@0000Z 2026-04-21 0000Z SFI=105, A=24, K=3.67, Minor/G1;None Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 24.
The estimated planetary K-index at 0000 UTC on 21 April was 3.67.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0421wwv.txt 2026-04-20@2100Z 2026-04-20 2100Z SFI=105, A=26, K=5.00, Minor/G1;Minor/G1 Solar-terrestrial indices for 20 April follow.
Solar flux 105 and estimated planetary A-index 26.
The estimated planetary K-index at 2100 UTC on 20 April was 5.00.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@1800Z 2026-04-20 1800Z SFI=105, A=23, K=4.67, Minor/G1;Minor/G1 Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 1800 UTC on 20 April was 4.67.

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.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@1500Z 2026-04-20 1500Z SFI=105, A=23, K=3.33, None;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 1500 UTC on 20 April was 3.33.

No space weather storms were observed for the past 24 hours.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@1200Z 2026-04-20 1200Z SFI=105, A=23, K=3.67, None;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 1200 UTC on 20 April was 3.67.

No space weather storms were observed for the past 24 hours.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@0900Z 2026-04-20 0900Z SFI=105, A=23, K=4.00, Moderate/G2;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 0900 UTC on 20 April was 4.00.

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G2 level occurred.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@0600Z 2026-04-20 0600Z SFI=105, A=23, K=2.33, Moderate/G2;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 0600 UTC on 20 April was 2.33.

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G2 level occurred.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@0300Z 2026-04-20 0300Z SFI=105, A=23, K=0.67, Moderate/G2;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 0300 UTC on 20 April was 0.67.

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G2 level occurred.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt 2026-04-20@0000Z 2026-04-20 0000Z SFI=105, A=23, K=1.67, Moderate/G2;None Solar-terrestrial indices for 19 April follow.
Solar flux 105 and estimated planetary A-index 23.
The estimated planetary K-index at 0000 UTC on 20 April was 1.67.

Space weather for the past 24 hours has been moderate.
Geomagnetic storms reaching the G2 level occurred.

No space weather storms are predicted for the next 24 hours.


]]> ftp://ftp.swpc.noaa.gov/pub/forecasts/wwv/0420wwv.txt