Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 21 Mar 2007

By SpaceRef Editor
March 21, 2007
Filed under , , ,
Joint USAF/NOAA Report of Solar and Geophysical Activity 21 Mar 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Mar 21 2200 UTC
Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 080 Issued at 2200Z on 21 Mar 2007

IA. Analysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: Solar activity was very low. No flares were observed during the past 24 hours, and no new regions were numbered today.

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

IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit remained at high levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the next three days (22-24 March). Isolated active periods are possible on 23-24 March, with a slight chance for minor storm conditions at high latitudes, due to a coronal hole high speed stream.

III. Event Probabilities 22 Mar-24 Mar

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

IV. Penticton 10.7 cm Flux

  • Observed 21 Mar 073
  • Predicted 22 Mar-24 Mar 075/075/075
  • 90 Day Mean 21 Mar 078

V. Geomagnetic A Indices

  • Observed Afr/Ap 20 Mar 001/002
  • Estimated Afr/Ap 21 Mar 003/005
  • Predicted Afr/Ap 22 Mar-24 Mar 005/005-008/008-008/008

VI. Geomagnetic Activity Probabilities 22 Mar-24 Mar

A. Middle Latitudes

  • Active 15/20/20
  • Minor storm 05/05/05
  • Major-severe storm 01/01/01

B. High Latitudes

  • Active 15/25/25
  • Minor storm 05/10/10
  • Major-severe storm 01/01/01

SpaceRef staff editor.