Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2026 Oct 13 1805 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 12 October follow.
Solar flux 123 and estimated planetary A-index 7.
The estimated planetary K-index at 1800 UTC on 13 October was 2.33.

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

Space weather for the next 24 hours is predicted to be minor.
Geomagnetic storms reaching the G1 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 13	3	4	6	6	6	5	3	2
2026 Oct 14	3	4	3	5	5	5	3	2
2026 Oct 15	2	3	4	4	3	1	1	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 13	15	20	35
2026 Oct 14	15	20	20
2026 Oct 15	15	20	20

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 13	4	4	4	4	3	3	3	2
2026 Oct 14	3	4	3	3	3	3	3	2
2026 Oct 15	2	3	3	2	2	1	1	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 13	35	10	1
2026 Oct 14	25	5	1
2026 Oct 15	15	5	1

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

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

Sun tools

Greyline calculator

Sunrise Sunset calendar