Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 20 Aug 2008

By SpaceRef Editor
August 20, 2008
Filed under , , ,

Product: Report of Solar-Geophysical Activity
Issued: 2008 Aug 20 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 233 Issued at 2200Z on 20 Aug 2008

IA. Analysis of Solar Active Regions and Activity from 19/2100Z to 20/2100Z: Solar activity was very low.

IB. Solar Activity Forecast: Solar activity is expected to be very low.

IIA. Geophysical Activity Summary 19/2100Z to 20/2100Z: The geomagnetic field was mostly quiet. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (21-23 August).

III. Event Probabilities 21 Aug-23 Aug

  • Class M 01/01/01
  • Class X 01/01/01
  • Proton 01/01/01
  • PCAF Green

IV. Penticton 10.7 cm Flux

  • Observed 20 Aug 066
  • Predicted 21 Aug-23 Aug 066/066/066
  • 90 Day Mean 20 Aug 066

V. Geomagnetic A Indices

  • Observed Afr/Ap 19 Aug 007/008
  • Estimated Afr/Ap 20 Aug 005/008
  • Predicted Afr/Ap 21 Aug-23 Aug 005/005-005/005-005/005

VI. Geomagnetic Activity Probabilities 21 Aug-23 Aug

A. Middle Latitudes

  • Active 05/05/05
  • Minor storm 01/01/01
  • Major-severe storm 01/01/01

B. High Latitudes

  • Active 05/05/05
  • Minor storm 01/01/01
  • Major-severe storm 01/01/01

SpaceRef staff editor.