Message:21799 In: SPACWX.USA
From: N4SDDate: Sun, 03 May 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <12456_N4SD>
Path: N2MH4|N3MEL|KA3VSP|N4SD
R:260503/0356Z 30847@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260503/0356Z 16612@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260503/0345Z 1541@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260503/0031Z 12456@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 030031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 May 03 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 3 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for May 03-May 05 2026 is 4.00 (below NOAA
Scale levels).
NOAA Kp index breakdown May 03-May 05 2026
May 03 May 04 May 05
00-03UT 2.67 2.67 2.67
03-06UT 3.00 3.00 2.67
06-09UT 4.00 2.67 2.00
09-12UT 2.67 2.67 2.00
12-15UT 2.33 1.67 1.67
15-18UT 1.67 1.67 1.67
18-21UT 1.67 0.67 1.67
21-00UT 2.67 2.67 2.00
Rationale: No G1 (Minor) or greater geomagnetic storms are expected.
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 03-May 05 2026
May 03 May 04 May 05
S1 or greater 5% 5% 5%
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 03-May 05 2026
May 03 May 04 May 05
R1-R2 45% 45% 45%
R3 or greater 5% 5% 5%
Rationale: There exists a chance for R1-R2 (Minor-Moderate) radio
blackouts over 03-05 May due to the flare potential from multiple
complex active regions on the Suns visible disk.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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