Message:18255 In: SPACWX.USA
From: N4SDDate: Wed, 04 Mar 26 12:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <8323_N4SD>
Path: N2MH4|N3MEL|N3FUD|KA3VSP|N4SD
R:260304/1241Z 28645@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260304/1238Z 12729@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260304/1237Z 2518@N3FUD.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260304/1232Z 55123@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260304/1231Z 8323@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 041231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Mar 04 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 04-Mar 06 2026 is 4.33 (below NOAA
Scale levels).
NOAA Kp index breakdown Mar 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
00-03UT 2.33 2.33 4.33
03-06UT 3.00 2.33 4.33
06-09UT 2.00 1.00 3.33
09-12UT 2.00 1.33 3.33
12-15UT 0.67 1.00 3.00
15-18UT 0.67 2.33 2.67
18-21UT 1.67 2.33 3.00
21-00UT 2.00 3.33 4.33
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 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
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 04-Mar 06 2026
Mar 04 Mar 05 Mar 06
R1-R2 25% 25% 25%
R3 or greater 5% 5% 5%
Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through 06 Mar.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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