Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Mar 2007

By SpaceRef Editor
March 22, 2007
Filed under , , ,
Joint USAF/NOAA Report of Solar and Geophysical Activity 22 Mar 2007

Product: Report of Solar-Geophysical Activity
Issued: 2007 Mar 22 2221 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 081 Issued at 2200Z on 22 Mar 2007

IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity was very low. No new regions were numbered today.

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

IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field was 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 mostly quiet for the next two days (23-24 March). Expect quiet to unsettled conditions, with isolated active periods on 25 March due to a recurrent coronal hole high speed stream. Isolated minor storm periods are possible at high latitudes as the coronal hole moves into a geoeffective position.

III. Event Probabilities 23 Mar-25 Mar

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

IV. Penticton 10.7 cm Flux

  • Observed 22 Mar 073
  • Predicted 23 Mar-25 Mar 075/075/075
  • 90 Day Mean 22 Mar 078

V. Geomagnetic A Indices

  • Observed Afr/Ap 21 Mar 001/002
  • Estimated Afr/Ap 22 Mar 003/005
  • Predicted Afr/Ap 23 Mar-25 Mar 005/005-005/005-008/010

VI. Geomagnetic Activity Probabilities 23 Mar-25 Mar

A. Middle Latitudes

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

B. High Latitudes

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

SpaceRef staff editor.