Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2025 Jul 18 2105 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 18 July follow.
Solar flux 156 and estimated planetary A-index 12.
The estimated planetary K-index at 2100 UTC on 18 July was 1.67.

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

Space weather for the next 24 hours is predicted to be minor.
Radio blackouts reaching the R1 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 Jul 18	3	3	4	5	4	2	2	2
2025 Jul 19	2	2	3	4	3	2	1	1
2025 Jul 20	1	2	3	3	2	0	1	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Jul 18	15	30	40
2025 Jul 19	15	25	25
2025 Jul 20	15	25	25

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 Jul 18	3	3	3	3	2	2	2	2
2025 Jul 19	3	3	3	3	2	1	1	2
2025 Jul 20	2	3	3	2	2	1	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2025 Jul 18	30	15	1
2025 Jul 19	15	5	1
2025 Jul 20	15	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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