Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 01 Mar 2004

By SpaceRef Editor
March 1, 2004
Filed under , ,

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Environment Center and the U.S. Air Force.

Updated 2004 Mar 01 2210 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 061 Issued at 2200Z on 01 Mar 2004

IA. Analysis of Solar Active Regions and Activity from 29/2100Z
to 01/2100Z: Solar activity was very low. Region 564 (N13W80)
produced two B-class flares during the past 24 hours but was
otherwise quiet and stable. Region 567 (S13E11) is the only other
region of note on the solar disk, and has some mixing of weak
magnetic polarity near the center of the group. However the region
did not produce any flare activity during the past 24 hours.

IB. Solar Activity Forecast: Solar activity is expected to be low.
There is a slight chance, however, for an isolated M-class event
from Region 564 or Region 567.

IIA. Geophysical Activity Summary 29/2100Z to 01/2100Z:
The geomagnetic field was unsettled to active. Solar wind data show
the continuation of a high speed stream associated with a favorably
positioned corona hole. The greater than 2 MeV electron flux reached
high levels during the past 24 hours.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be unsettled to active for the next 24 hours (2 March)
as the current conditions are likely to persist. A decline to mostly
unsettled is expected for the 2nd and 3rd days (3-4 March).

III. Event Probabilities 02 Mar-04 Mar

  • Class M 20/15/10
  • Class X 05/01/01
  • Proton 05/01/01
  • PCAF green

IV. Penticton 10.7 cm Flux

  • Observed 01 Mar 102
  • Predicted 02 Mar-04 Mar 100/095/090
  • 90 Day Mean 01 Mar 111

V. Geomagnetic A Indices

  • Observed Afr/Ap 29 Feb 017/021
  • Estimated Afr/Ap 01 Mar 015/020
  • Predicted Afr/Ap 02 Mar-04 Mar 015/020-012/015-012/015

VI. Geomagnetic Activity Probabilities 02 Mar-04 Mar

A. Middle Latitudes

  • Active 40/35/35
  • Minor storm 25/20/20
  • Major-severe storm 10/05/05

B. High Latitudes

  • Active 25/30/30
  • Minor storm 35/30/30
  • Major-severe storm 20/10/10

SpaceRef staff editor.