Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2018 Aug 21 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 20 August follow.
Solar flux 68 and estimated planetary A-index 14.
The estimated planetary K-index at 1500 UTC on 21 August was 1.

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
2018 Aug 21 3 3 4 5 4 4 2 2
2018 Aug 22 2 3 4 4 3 2 1 2
2018 Aug 23 2 3 4 4 3 2 1 2

Probability of Geomagnetic conditions at high latitudes

  Active Minor_Storm Major-Severe_Storm
2018 Aug 21 10 25 50
2018 Aug 22 15 30 40
2018 Aug 23 15 30 40

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 Aug 21 3 3 3 3 3 3 2 3
2018 Aug 22 2 3 3 3 2 1 2 2
2018 Aug 23 2 3 3 3 2 1 2 2

Probability of Geomagnetic conditions at mid latitudes

  Active Minor_Storm Major-Severe_Storm
2018 Aug 21 35 15 1
2018 Aug 22 30 10 1
2018 Aug 23 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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