Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 26 Mar 2004

By SpaceRef Editor

March 26, 2004

Filed under ESCO Electronics Corporation, 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 26 2210 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 086 Issued at 2200Z on 26 Mar 2004

IA. Analysis of Solar Active Regions and Activity from 25/2100Z
to 26/2100Z: Solar activity decreased to very low levels. Region
582 (N16E59) continued to show growth in sunspot coverage and
magnetic complexity. Although, this region was limited to minor
B-class flare production today. Region 574 (S04W65) has undergone
steady decay throughout the period. Region 578 (N15W34) showed a
slight decay in sunspot coverage. Region 581 (S03E53) exhibited
grow and now has sunspots in both polarities. No new regions were
numbered today.

IB. Solar Activity Forecast: Solar activity is expected to be at
low to moderate levels. Region 582 has the potential to produce an
M-class flare.

IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field was at predominantly quiet to unsettled levels.
An isolated active period was observed at the Boulder magnetometer
between 26/1500 and 1800Z. The greater than 2 MeV electron fluxes
at geosynchronous orbit reached high levels today.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at predominantly unsettled to active levels. A
recurrent high speed coronal hole stream is expected to be
geo-effective throughout the period with isolated minor storm
conditions possible, mostly at higher latitudes.

III. Event Probabilities 27 Mar-29 Mar
Cl