Message:18457 In: SPACWX.USA
From: N4SDDate: Sun, 08 Mar 26 12:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <8625_N4SD>
Path: N2MH4|WB4WPF|KA3VSP|N4SD
R:260308/1537Z 28771@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260308/1536Z 7783@WB4WPF.#SFL.FL.USA.NOAM LinBPQ6.0.25
R:260308/1532Z 55273@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260308/1232Z 8625@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 081231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Mar 08 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
#
# 3-Day Forecast
#
A. NOAA Geomagnetic Activity Observation and Forecast
The greatest observed 3 hr Kp over the past 24 hours was 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Mar 08-Mar 10 2026 is 4.67 (NOAA Scale
G1).
NOAA Kp index breakdown Mar 08-Mar 10 2026
Mar 08 Mar 09 Mar 10
00-03UT 4.67 (G1) 2.67 2.67
03-06UT 3.67 2.67 3.00
06-09UT 3.67 3.67 2.67
09-12UT 2.67 2.67 2.33
12-15UT 3.67 1.67 2.00
15-18UT 4.67 (G1) 1.67 1.67
18-21UT 3.67 2.67 1.67
21-00UT 3.00 2.67 2.67
Rationale: G1 (Minor) geomagnetic storms are expected on 08 Mar due to
influence from a negative polarity coronal hole.
B. NOAA Solar Radiation Activity Observation and Forecast
Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.
Solar Radiation Storm Forecast for Mar 08-Mar 10 2026
Mar 08 Mar 09 Mar 10
S1 or greater 1% 1% 1%
Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Mar 08-Mar 10 2026
Mar 08 Mar 09 Mar 10
R1-R2 20% 20% 20%
R3 or greater 1% 1% 1%
Rationale: There exists a slight chance for R1-R2 (Minor-Moderate) radio
blackouts over 08-10 Mar.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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