Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Mar 17 1805 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 16 March follow.
Solar flux 186 and estimated planetary A-index 10.
The estimated planetary K-index at 1800 UTC on 17 March was 2.67.

No space weather storms were observed for the past 24 hours.

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
2025 Mar 17	3	2	3	3	3	3	2	2
2025 Mar 18	3	3	4	3	3	4	3	2
2025 Mar 19	2	2	3	4	4	2	2	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Mar 17	10	30	50
2025 Mar 18	10	25	55
2025 Mar 19	15	30	30

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 Mar 17	3	3	3	2	2	2	2	3
2025 Mar 18	3	3	3	2	2	2	3	3
2025 Mar 19	3	3	2	2	2	2	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Mar 17	35	15	1
2025 Mar 18	40	15	1
2025 Mar 19	25	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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