Current conditions

:Product: Geophysical Alert Message wwv.txt
:Issued: 2024 Apr 28 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
#          Geophysical Alert Message
#
Solar-terrestrial indices for 27 April follow.
Solar flux 153 and estimated planetary A-index 12.
The estimated planetary K-index at 1500 UTC on 28 April was 0.67.

Space weather for the past 24 hours has been minor.
Radio blackouts reaching the R1 level occurred.

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
2024 Apr 28	3	3	4	5	4	3	2	1
2024 Apr 29	2	2	3	4	4	3	2	2
2024 Apr 30	2	2	2	3	3	2	2	1

Probability of Geomagnetic conditions at high latitudes

	Active	Minor_Storm	Major-Severe_Storm
2024 Apr 28	15	30	40
2024 Apr 29	15	25	30
2024 Apr 30	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
2024 Apr 28	3	3	3	3	3	2	2	2
2024 Apr 29	2	2	2	3	2	2	2	2
2024 Apr 30	2	3	2	2	2	1	2	2

Probability of Geomagnetic conditions at mid latitudes

	Active	Minor_Storm	Major-Severe_Storm
2024 Apr 28	30	10	1
2024 Apr 29	25	5	1
2024 Apr 30	20	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)

Sun tools

Greyline calculator

Sunrise Sunset calendar