Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Oct 31 1205 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 30 October follow.
Solar flux 120 and estimated planetary A-index 38.
The estimated planetary K-index at 1200 UTC on 31 October was 3.67.

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.

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
2025 Oct 31	3	3	4	5	5	4	2	2
2025 Nov 1	2	2	3	4	4	3	2	1
2025 Nov 2	2	2	2	3	3	1	1	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Oct 31	10	30	50
2025 Nov 1	15	30	25
2025 Nov 2	15	25	25

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
2025 Oct 31	3	3	3	3	3	3	2	3
2025 Nov 1	2	3	2	2	2	2	2	2
2025 Nov 2	2	2	2	2	2	1	1	3

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Oct 31	35	15	1
2025 Nov 1	20	5	1
2025 Nov 2	15	5	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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