Message:21852 In: SPACWX.USA
From: N4SDDate: Mon, 04 May 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <12525_N4SD>
Path: N2MH4|N3MEL|KA3VSP|N4SD
R:260504/0655Z 30878@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260504/0654Z 16653@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260504/0643Z 1580@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260504/0031Z 12525@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 040031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 May 04 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 04-May 06 2026 is 3.00 (below NOAA
Scale levels).
NOAA Kp index breakdown May 04-May 06 2026
May 04 May 05 May 06
00-03UT 2.67 2.00 1.67
03-06UT 3.00 2.67 2.00
06-09UT 2.00 1.67 2.67
09-12UT 2.00 1.67 1.67
12-15UT 1.67 1.00 0.67
15-18UT 1.67 0.67 0.67
18-21UT 0.67 1.00 1.67
21-00UT 2.00 1.67 served by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.
Solar Radiation Storm Forecast for May 04-May 06 2026
May 04 May 05 May 06
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 04-May 06 2026
May 04 May 05 May 06
R1-R2 40% 40% 40%
R3 or greater 5% 5% 5%
Rationale: No R1 (Minor) or greater radio blackouts are expected. No
significant active region flare activity is forecast.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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