Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 31 Jul 2008

By SpaceRef Editor
July 31, 2008
Filed under , , ,

Product: Report of Solar-Geophysical Activity
Issued: 2008 Jul 31 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 213 Issued at 2200Z on 31 Jul 2008

IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: Solar activity was very low. The visible disk remains spotless. No flares occurred in the past 24 hours.

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

IIA. Geophysical Activity Summary 30/2100Z to 31/2100Z: The geomagnetic field was quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet unsettled on day one (1 Aug). Quiet conditions are expected on days two and three (2-3 Aug).

III. Event Probabilities 01 Aug-03 Aug

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

IV. Penticton 10.7 cm Flux

  • Observed 31 Jul 066
  • Predicted 01 Aug-03 Aug 066/066/066
  • 90 Day Mean 31 Jul 067

V. Geomagnetic A Indices

  • Observed Afr/Ap 30 Jul 004/005
  • Estimated Afr/Ap 31 Jul 005/005
  • Predicted Afr/Ap 01 Aug-03 Aug 007/008-005/005-005/005

VI. Geomagnetic Activity Probabilities 01 Aug-03 Aug

A. Middle Latitudes

  • Active 10/05/05
  • Minor storm 01/01/01
  • Major-severe storm 01/01/01

B. High Latitudes

  • Active 15/10/10
  • Minor storm 01/01/01
  • Major-severe storm 01/01/01

SpaceRef staff editor.