Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2017 Sep 23 0305 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 22 September follow.
Solar flux 78 and estimated planetary A-index 5.
The estimated planetary K-index at 0300 UTC on 23 September was 1.

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
2017 Sep 23	1	2	2	2	2	2	2	2
2017 Sep 24	2	2	1	2	1	5	3	2
2017 Sep 25	3	3	4	5	4	3	2	2

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2017 Sep 23	15	25	25
2017 Sep 24	15	25	40
2017 Sep 25	15	25	50

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
2017 Sep 23	2	2	2	1	2	1	2	3
2017 Sep 24	2	2	2	1	1	3	3	3
2017 Sep 25	4	3	3	3	3	2	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2017 Sep 23	15	5	1
2017 Sep 24	25	10	1
2017 Sep 25	30	15	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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