Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2026 Oct 16 2110 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 16 October follow.
Solar flux 131 and estimated planetary A-index 12.
The estimated planetary K-index at 2100 UTC on 16 October was 3.67.

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

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

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 16	2	2	2	3	3	2	2	2
2026 Oct 17	1	1	1	2	2	1	1	1
2026 Oct 18	1	1	1	2	2	1	1	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 16	15	15	15
2026 Oct 17	15	15	15
2026 Oct 18	15	15	15

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 16	2	3	2	2	2	2	2	2
2026 Oct 17	2	2	2	1	2	1	1	2
2026 Oct 18	2	2	2	1	2	1	1	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Oct 16	10	5	1
2026 Oct 17	10	5	1
2026 Oct 18	10	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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