Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 26 Jul 2006

By SpaceRef Editor
July 26, 2006
Filed under , , ,
Joint USAF/NOAA Report of Solar and Geophysical Activity 26 Jul 2006
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Product: Report of Solar-Geophysical Activity
Issued: 2006 Jul 26 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 207 Issued at 2200Z on 26 Jul 2006

IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity was very low. Region 901 (N06E15) has produced only B-class activity.

IB. Solar Activity Forecast: Solar activity is expected to be very low for the next three days (27 – 29 July).

IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field was quiet to unsettled.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the next three days (27 – 29 July). A coronal hole in the northern hemisphere is not expected to be geoeffective, but may produce isolated active periods on 27 July.

III. Event Probabilities 27 Jul-29 Jul

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

IV. Penticton 10.7 cm Flux

  • Observed 26 Jul 075
  • Predicted 27 Jul-29 Jul 075/075/075
  • 90 Day Mean 26 Jul 079

V. Geomagnetic A Indices

  • Observed Afr/Ap 25 Jul 005/006
  • Estimated Afr/Ap 26 Jul 005/008
  • Predicted Afr/Ap 27 Jul-29 Jul 005/008-005/005-005/005

VI. Geomagnetic Activity Probabilities 27 Jul-29 Jul

A. Middle Latitudes

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

B. High Latitudes

  • Active 20/20/20
  • Minor storm 10/05/05
  • Major-severe storm 01/01/01

SpaceRef staff editor.