Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Nov 17 1805 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 16 November follow.
Solar flux 132 and estimated planetary A-index 18.
The estimated planetary K-index at 1800 UTC on 17 November was 1.00.

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
2025 Nov 17	3	4	5	5	5	4	2	2
2025 Nov 18	2	3	4	4	4	3	2	1
2025 Nov 19	2	2	3	4	4	3	2	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Nov 17	10	25	65
2025 Nov 18	15	30	45
2025 Nov 19	15	25	35

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 Nov 17	3	4	4	3	3	3	2	3
2025 Nov 18	3	3	3	3	2	2	2	2
2025 Nov 19	2	2	2	2	2	2	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Nov 17	40	30	5
2025 Nov 18	30	15	1
2025 Nov 19	25	10	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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