Message:18608 In: SPACWX.USA
From: N4SDDate: Wed, 11 Mar 26 12:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather Forecast Discussion
Message-ID: <8833_N4SD>
Path: N2MH4|N3MEL|KA3VSP|N4SD
R:260311/1250Z 28852@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260311/1246Z 13129@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260311/1233Z 55397@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260311/1232Z 8833@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX12 KWNP 111231
DAYDIS
:Product: Forecast Discussion
:Issued: 2026 Mar 11 1230 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. C-class flares were observed from
Regions 4381 (N07W75, Cao/beta) and 4389 (N13E54, Ero/beta) with the
largest event a C4.6 flare observed at 10/1845 UTC from Region 4381.
Slight areal growth was observed in Region 4388 (S15W40, Cri/beta).
Regions 4390 (N27E22, Bxo/beta) and 4391 (N13E45, Axx/alpha) were
numbered. The rest of the spot groups were quiet and stable. No
Earth-directed CMEs were observed.
.Forecast...
Solar activity is expected to be at low levels, with a slight chance for
M-class (R1-R2/Minor-Moderate) flares through 13 Mar.
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached high levels with a peak
flux of 1,726 pfu observed at 10/1735 UTC. The greater than 10 MeV
proton flux was at background levels.
.Forecast...
The greater than 2 MeV electron flux is expected to reach high levels on
11-13 Mar. The greater than 10 MeV proton flux is expected to continue
at background levels through 13 Mar.
Solar Wind
.24 hr Summary...
Solar wind parameters were mildly enhanced, possibly due to transient
influence. Total field increased after 10/1030 UTC to near 9 nT while
the Bz ranged from +6/-8 nT. Solar wind speed ranged from 389-564 km/s.
Phi angle was mostly negative.
.Forecast...
Slightly enhanced solar wind parameters are likely to continue through
11 Mar. Nominal levels are expected to return on 12 Mar before
enhancements are again expected 13 Mar due to the onset of a positive
polarity coronal hole high speed stream.
Geospace
.24 hr Summary...
The geomagnetic field was at quiet to active levels.
.Forecast...
The geomagnetic field is expected to be at quiet to active levels on 11
Mar as slightly enhanced solar wind conditions persist. Mostly quiet
conditions are expected on 12 Mar. Active levels are expected 13 Mar
with possible isolated periods of G1 (Minor) storms due to the onset of
positive polarity coronal hole high speed stream.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
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