Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Jun 01 0305 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 31 May follow.
Solar flux 164 and estimated planetary A-index 16.
The estimated planetary K-index at 0300 UTC on 01 June was 5.33.

Space weather for the past 24 hours has been minor.
Geomagnetic storms reaching the G1 level occurred.
Solar radiation storms reaching the S1 level occurred.
Radio blackouts reaching the R1 level occurred.

Space weather for the next 24 hours is predicted to be severe.
Geomagnetic storms reaching the G4 level are likely.
Solar radiation storms reaching the S1 level are expected.
Radio blackouts reaching the R2 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
2025 Jun 1	3	4	5	5	7	7	6	5
2025 Jun 2	5	6	7	7	7	7	5	4
2025 Jun 3	4	5	6	6	6	5	4	3

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Jun 1	1	5	95
2025 Jun 2	1	5	95
2025 Jun 3	5	15	80

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 Jun 1	4	4	4	3	6	6	6	6
2025 Jun 2	6	6	6	5	5	5	4	4
2025 Jun 3	5	5	4	4	4	3	4	4

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Jun 1	5	40	55
2025 Jun 2	15	35	55
2025 Jun 3	30	35	25

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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