Message:18484 In: SPACWX.USA
From: N4SDDate: Mon, 09 Mar 26 00:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <8658_N4SD>
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FXXX10 KWNP 090031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Mar 09 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
#
# 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 09-Mar 11 2026 is 3.67 (below NOAA
Scale levels).
NOAA Kp index breakdown Mar 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
00-03UT 2.67 2.67 2.33
03-06UT 2.67 3.00 2.00
06-09UT 3.67 2.67 2.67
09-12UT 2.67 2.33 2.67
12-15UT 1.67 2.00 2.00
15-18UT 1.67 1.67 2.00
18-21UT 2.67 1.67 1.67
21-00UT 2.67 2.67 2.00
Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No
significant transient or recurrent solar wind features are forecast.
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 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
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 09-Mar 11 2026
Mar 09 Mar 10 Mar 11
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 09-11 Mar.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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