Message:22091 In: SPACWX.USA
From: N4SDDate: Sat, 09 May 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <12869_N4SD>
Path: N2MH4|N3MEL|KA3VSP|N4SD
R:260509/0620Z 31031@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260509/0620Z 16859@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260509/0602Z 1785@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260509/0031Z 12869@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 090031
DAYTDF
:Product: 3-Day For. 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 09-May 11 2026 is 3.00 (below NOAA
Scale levels).
NOAA Kp index breakdown May 09-May 11 2026
May 09 May 10 May 11
00-03UT 2.67 2.67 1.67
03-06UT 3.00 2.00 2.67
06-09UT 2.67 2.00 2.67
09-12UT 2.00 1.67 1.67
12-15UT 2.00 1.00 1.33
15-18UT 1.67 0.67 1.33
18-21UT 2.00 1.00 2.00
21-00UT 2.67 1.67 12UT 2.00 1.67 1.67
12-15UT 2.00 1.00 1.33
15-18UT 1.67 0.67 1.33
18-21UT 2.00 1.00 2.00
21-00UT 2.67 1.67 ctive 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 09-May 11 2026
May 09 May 10 May 11
R1-R2 45% 45% 45%
R3 or greater 10% 10% 10%
Rationale: There exists a chance for R1-R2 (Minor-Moderate) radio
blackouts, with a slight chance for R3 (Strong), over 09-11 May.
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73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
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