Message:21911 In: SPACWX.USA
From: N4SDDate: Tue, 05 May 26 12:32:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <12629_N4SD>
Path: N2MH4|N3MEL|KA3VSP|N4SD
R:260508/1451Z 30925@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260505/1925Z 16723@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260505/1919Z 1654@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260505/1232Z 12629@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 051231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 May 05 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 6 (NOAA Scale
G2).
The greatest expected 3 hr Kp for May 05-May 07 2026 is 5.00 (NOAA Scale
G1).
NOAA Kp index breakdown May 05-May 07 2026
May 05 May 06 May 07
00-03UT 5.00 (G1) 2.67 3.33
03-06UT 3.33 2.33 3.67
06-09UT 2.00 2.00 3.00
09-12UT 1.67 1.33 2.33
12-15UT 2.00 1.67 2.33
15-18UT 2.33 2.33 3.33
18-21UT 2.00 2.00 3.33
21-00UT 2.67 2.67 3.67
Rationale: An isolated period of G1 (Minor) geomagnetic storming
occurred early on 05 May.
B. NOAA Solar Radiation Activity Observation and Forecast
Solar radiation, as observed by NOAA GOES-19 over the past 24 hours, was
below S-scale storm level thresholds.
Solar Radiation Storm Forecast for May 05-May 07 2026
May 05 May 06 May 07
S1 or greater 5% 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 May 05-May 07 2026
rimarily due to the flare potential of Region
4429.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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