Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Apr 02 0010 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 01 April follow.
Solar flux 182 and estimated planetary A-index 5.
The estimated planetary K-index at 0000 UTC on 02 April was 2.00.

Space weather for the past 24 hours has been moderate.
Solar radiation storms reaching the S2 level occurred.
Radio blackouts reaching the R2 level occurred.

Space weather for the next 24 hours is predicted to be moderate.
Solar radiation storms reaching the S1 level are expected.
Radio blackouts reaching the R2 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 Apr 1	2	2	4	4	3	2	2	1
2025 Apr 2	2	2	2	3	3	2	2	1
2025 Apr 3	1	1	1	2	2	1	1	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Apr 1	15	30	25
2025 Apr 2	15	30	25
2025 Apr 3	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
2025 Apr 1	2	3	3	2	2	2	2	2
2025 Apr 2	2	3	2	2	2	1	2	2
2025 Apr 3	2	2	2	1	2	1	2	1

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Apr 1	20	5	1
2025 Apr 2	20	5	1
2025 Apr 3	10	1	1

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

Yellow
A sunspot region showing characteristics favorable for producing a PCA event is present on the Sun.
If an energetic flare occurs in this region, the probability of a significant PCA event is very high.

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

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