Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2018 Apr 25 0905 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 24 April follow.
Solar flux 73 and estimated planetary A-index 5.
The estimated planetary K-index at 0900 UTC on 25 April was 2.

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

No space weather storms are predicted for the next 24 hours.

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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
2018 Apr 25	1	1	1	2	2	1	1	1
2018 Apr 26	1	1	1	2	3	2	2	2
2018 Apr 27	2	3	2	4	4	3	2	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2018 Apr 25	15	15	10
2018 Apr 26	20	25	20
2018 Apr 27	15	30	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
2018 Apr 25	2	1	2	1	2	1	2	2
2018 Apr 26	2	1	1	1	2	2	2	3
2018 Apr 27	3	3	2	3	2	2	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2018 Apr 25	10	1	1
2018 Apr 26	20	5	1
2018 Apr 27	30	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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