Viewing archive of Friday, 19 February 2021

Solar activity report

Report of Solar-Geophysical Activity 2021 Feb 19 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 50 Issued at 2200Z on 19 Feb 2021

IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z

Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low on days one, two, and three (20 Feb, 21 Feb, 22 Feb).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 539 km/s at 19/2037Z. Total IMF reached 14 nT at 19/1959Z. The maximum southward component of Bz reached -10 nT at 19/2034Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 202 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at unsettled to minor storm levels on day one (20 Feb), quiet to active levels on day two (21 Feb) and quiet to unsettled levels on day three (22 Feb).
III. Event Probabilities 20 Feb to 22 Feb
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       19 Feb 073
  Predicted   20 Feb-22 Feb 073/073/073
  90 Day Mean        19 Feb 082

V. Geomagnetic A Indices
  Observed Afr/Ap 18 Feb  002/002
  Estimated     Afr/Ap 19 Feb  012/016
  Predicted    Afr/Ap 20 Feb-22 Feb  015/018-009/012-008/010

VI. Geomagnetic Activity Probabilities 20 Feb to 22 Feb
A. Middle Latitudes
Active35%30%20%
Minor storm15%10%05%
Major-severe storm01%01%01%
B. High Latitudes
Active10%15%15%
Minor storm25%30%25%
Major-severe storm50%40%30%

All times in UTC

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/10M4.2
Last geomagnetic storm2024/11/09Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024186 +19.6
Last 30 days163.1 +14.2

This day in history*

Solar flares
12004X3.67
22013X1.62
32024M4.2
42002M3.47
52001M3.33
DstG
12004-263G4
21991-144
32000-95G2
41998-93
51975-67G2
*since 1994

Social networks