Message:21720 In: SPACWX.USA
From: N4SDDate: Fri, 01 May 26 12:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <12342_N4SD>
Path: N2MH4|N3MEL|NS2B|N3IP|KA3VSP|N4SD
R:260501/1832Z 30808@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260501/1831Z 16559@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260501/1820Z 50352@NS2B.#WNY.NY.USA.NOAM BPQ6.0.25
R:260501/1820Z 66541@N3IP.#SEPA.PA.USA.NOAM BPQK6.0.24
R:260501/1819Z 1490@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260501/1231Z 12342@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 011231
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 May 01 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 May 01-May 03 2026 is 4.33 (below NOAA
Scale levels).
NOAA Kp index breakdown May 01-May 03 2026
May 01 May 02 May 03
00-03UT 4.00 2.33 2.33
03-06UT 4.33 2.33 1.67
06-09UT 3.00 2.33 1.33
09-12UT 2.67 2.33 2.33
12-15UT 3.67 2.00 2.67
15-18UT 2.00 2.00 3.00
18-21UT 2.00 2.00 3.33
21-00UT 1.67 2.00 3.33
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 May 01-May 03 2026
May 01 May 02 May 03
S1 or greater 10% 10% 10%
Rationale: There exists a slight chance for S1 (Minor) or greater solar
radiation storms over 01-03 May.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for May 01-May 03 2026
May 01 May 02 May 03
R1-R2 50% 50% 50%
R3 or greater 10% 10% 10%
Rationale: A chance exists for R1-R2 (Minor-Moderate) radio blackouts,
with a slight chance for R3 (Strong), over 01-03 May.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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