Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2026 Jul 17 2105 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 17 July follow.
Solar flux 105 and estimated planetary A-index 5.
The estimated planetary K-index at 2100 UTC on 17 July was 1.00.

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
2026 Jul 17	1	1	2	3	3	2	2	1
2026 Jul 18	2	2	2	3	1	1	2	1
2026 Jul 19	1	2	2	2	0	0	1	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Jul 17	15	20	20
2026 Jul 18	15	20	25
2026 Jul 19	15	20	10

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
2026 Jul 17	2	2	2	2	2	1	2	2
2026 Jul 18	2	3	2	2	1	1	2	2
2026 Jul 19	2	2	2	1	1	1	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2026 Jul 17	15	5	1
2026 Jul 18	20	5	1
2026 Jul 19	10	1	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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