Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 07 Mar 2004

By SpaceRef Editor

March 8, 2004

Filed under Space Weather Prediction Center (NOAA), Space Weather Solar-Geophysical Activity, US

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

Updated 2004 Mar 07 2210 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 067 Issued at 2200Z on 07 Mar 2004

IA. Analysis of Solar Active Regions and Activity from 06/2100Z
to 07/2100Z: Solar activity has been low. Region 567 (S14W66) has
undergone a reduction in both magnetic complexity and size since
yesterday. It is now only 80 millionths of the solar disk, and has
been reclassified a Beta magnetic configuration. Region 570
(S14E59) is now in full view, and has reached a size of 570
millionths. Magnetic classification remains Beta for the region.
However, there continues to be a significant distance between the
leading and trailing sunspots. No new regions were numbered today.

IB. Solar Activity Forecast: Solar activity is expected to be
mostly low with a chance for moderate. Region 570, and to a lesser
degree 567, continue to have a fair potential for an M-class flare
event.

IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z:
The geomagnetic field has been at quiet to unsettled levels. 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 at quiet to unsettled levels through the 8th. The
field is expected to then jump to mostly unsettled with isolated
periods of active levels during the 9th and 10th. A high-speed
solar wind stream is approaching, and is expected to influence the
Earth’s magnetic field beginning late on the 9th.

III. Event Probabilities 08 Mar-10 Mar