Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2026 Mar 12 0305 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 11 March follow.
Solar flux 123 and estimated planetary A-index 9.
The estimated planetary K-index at 0300 UTC on 12 March was 2.67.

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 Mar 12	2	2	2	2	2	2	1	1
2026 Mar 13	1	1	1	4	5	6	4	3
2026 Mar 14	4	4	5	5	4	3	2	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Mar 12	15	25	20
2026 Mar 13	5	20	65
2026 Mar 14	5	20	65

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 Mar 12	3	3	2	1	2	1	1	2
2026 Mar 13	2	1	2	3	3	4	3	4
2026 Mar 14	4	4	4	3	2	2	2	3

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Mar 12	15	1	1
2026 Mar 13	45	25	5
2026 Mar 14	45	25	5

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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