Message:19834 In: SPACWX.USA
From: N4SDDate: Mon, 30 Mar 26 00:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Forecast Discussion
Message-ID: <10070_N4SD>
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FXXX12 KWNP 300031
DAYDIS
:Product: Forecast Discussion
:Issued: 2026 Mar 30 0030 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
# Forecast Discussion
#
Solar Activity
.24 hr Summary...
Solar activity was at low levels. Region 4401 (N25W27, Eai/beta)
underwent decay and magnetic simplification in its intermediate area,
and produced a long-duration C2.1 flare at 29/1700 UTC. Region 4405
(S27E44, Eao/beta-gamma) gained an additional trailing spot with
maturing penumbra, and was responsible for a C2.5 flare at 29/1959 UTC.
No Earth-directed CMEs were observed in available coronagraph imagery.
.Forecast...
Solar activity is expected to be low with a high chance (45%) for
M-class flares (R1-R2/Minor-Moderate radio blackouts) through 01 Apr.
Energetic Particle
.24 hr Summary...
Electrons greater than 2 MeV at geosynchronous orbit reached a peak
level of 3,750 pfu at 29/1520 UTC. The greater than 10 MeV proton flux
remained at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to be at normal to
moderate levels on 30-31 Mar, with high levels likely on 01 Apr. The
greater than 10 MeV proton flux is expected to continue at background
levels.
Solar Wind
.24 hr Summary...
Solar wind parameters were indicative of a solar sector boundary
crossing. Total field increased from 6 nT to a peak of 13 nT. The Bz
component underwent a few early southward deflections reaching -6 nT,
but was mostly near neutral or northward after. Solar wind speeds
increased from near 350 km/s and to near 450 km/s by the end of the
reporting period. Phi became positive at approximately 29/1412 UTC.
.Forecast...
Additional enhancements due to CIR and HSS influences are expected on 30
Mar and continuing through 31 Mar with near ambient-like conditions
returning by the end of 01 Apr.
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to active levels.
.Forecast...
G1 (Minor) geomagnetic storming is likely on 30 Mar due to recurrent
positive polarity CH HSS effects. Unsettled to active conditions are
then expected to persist into 31 Mar, before giving way to quiet to
unsettled levels on 01 Apr as HSS effects wane.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
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