Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2026 Oct 10 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 09 October follow.
Solar flux 121 and estimated planetary A-index 11.
The estimated planetary K-index at 1500 UTC on 10 October was 3.33.

Space weather for the past 24 hours has been minor.
Radio blackouts reaching the R1 level occurred.

Space weather for the next 24 hours is predicted to be moderate.
Geomagnetic storms reaching the G1 level are expected.
Radio blackouts reaching the R2 level are likely.

wwv alert messages

Last 25 or 250 wwv alert messages.

Solar activity and geomagnetic forecast

Geomagnetic 3 days forecast for high latitudes

planetary index (K)

UTC	00-03	03-06	06-09	09-12	12-15	15-18	18-21	21-00
2026 Oct 10	3	4	4	5	5	4	3	2
2026 Oct 11	3	3	4	6	7	6	4	3
2026 Oct 12	3	3	4	5	5	4	3	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 10	15	20	30
2026 Oct 11	20	25	35
2026 Oct 12	10	20	40

Geomagnetic 3 days forecast for mid latitudes

planetary index (K)

UTC	00-03	03-06	06-09	09-12	12-15	15-18	18-21	21-00
2026 Oct 10	3	4	3	3	3	3	3	3
2026 Oct 11	3	3	3	3	5	4	4	4
2026 Oct 12	3	3	3	3	3	3	3	3

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 10	35	10	1
2026 Oct 11	45	20	10
2026 Oct 12	30	10	1

24-hour forecast of a polar cap absorption (PCA) event

Green
No active sunspot region on the Sun is likely to produce a PCA event in the 24 hours.

Computed daily at 23h00Utc from datas issued from SEC.
f5len.org (c 2004-2010)

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