Message:19493 In: SPACWX.USA
From: N4SDDate: Tue, 24 Mar 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <9686_N4SD>
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R:260324/0343Z 44488@K7EK.#NOKY.KY.USA.NOAM BPQ6.0.25
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FXXX10 KWNP 240031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Mar 24 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 24-Mar 26 2026 is 4.67 (NOAA Scale
G1).
NOAA Kp index breakdown Mar 24-Mar 26 2026
Mar 24 Mar 25 Mar 26
00-03UT 4.67 (G1) 3.00 3.00
03-06UT 4.67 (G1) 3.67 2.00
06-09UT 4.00 2.67 2.00
09-12UT 3.67 2.67 2.67
12-15UT 3.00 2.00 2.67
15-18UT 2.33 2.00 3.00
18-21UT 2.67 2.67 3.67
21-00UT 3.00 2.67 3.67
Rationale: Periods of G1 (Minor) geomagnetic storms are expected on 24
Mar due to the negative polarity CH HSS ongoing influences. No further
G1 (Minor) or greater geomagnetic storms are expect on 25-26 Mar.
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 24-Mar 26 2026
Mar 24 Mar 25 Mar 26
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 24-Mar 26 2026
Mar 24 Mar 25 Mar 26
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%
Rationale: Solar activity is expected to be low with a chance for R1-R2
(Minor-Moderate) radio blackouts on 24-26 Mar.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
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