Message:19967 In: SPACWX.USA
From: N4SDDate: Thu, 02 Apr 26 00:31:00 Z
Newsgroups: SPACWX.USA
Subject: Space Weather 3-Day Forecast
Message-ID: <10275_N4SD>
Path: K7EK|VE3CGR|WG0A|KD6MTU|K5DAT|N3MEL|KA3VSP|N4SD
R:260402/0255z @:K7EK.#NOKY.KY.USA.NOAM $:10275_N4SD
R:260402/0255Z 73399@VE3CGR.#SCON.ON.CAN.NOAM LinBPQ6.0.25
R:260402/0255Z 35392@WG0A.#MSP.MN.USA.NOAM LinBPQ6.0.25
R:260402/0254Z 4520@KD6MTU.#NNV.NV.USA.NOAM BPQ6.0.25
R:260402/0252Z 29542@K5DAT.#NEWI.WI.USA.NOAM LinBPQ6.0.25
R:260402/0251Z 14834@N3MEL.#EPA.PA.USA.NOAM LinBPQ6.0.25
R:260402/0245Z 56337@KA3VSP.DE.USA.NOAM BPQ6.0.25
R:260402/0031Z 10275@N4SD.#TIDE.VA.USA.NOAM BPQ6.0.24
FXXX10 KWNP 020031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2026 Apr 02 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 Apr 02-Apr 04 2026 is 5.00 (NOAA Scale
G1).
NOAA Kp index breakdown Apr 02-Apr 04 2026
Apr 02 Apr 03 Apr 04
00-03UT 2.00 4.33 3.67
03-06UT 1.67 4.00 3.67
06-09UT 1.67 3.33 3.33
09-12UT 2.33 3.33 3.33
12-15UT 3.67 2.67 3.67
15-18UT 5.00 (G1) 2.33 3.67
18-21UT 4.33 2.33 3.67
21-00UT 5.00 (G1) 3.67 3.33
Rationale: Active to G1 (Minor) storming is likely on 02 Apr with the
onset of a negative polarity CH HSS.
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 Apr 02-Apr 04 2026
Apr 02 Apr 03 Apr 04
S1 or greater 10% 10% 10%
Rationale: There is a slight chance for the greater than 10 MeV proton
flux to exceed S1 (Minor) solar radiation storm levels through 04 Apr.
C. NOAA Radio Blackout Activity and Forecast
No radio blackouts were observed over the past 24 hours.
Radio Blackout Forecast for Apr 02-Apr 04 2026
Apr 02 Apr 03 Apr 04
R1-R2 55% 55% 55%
R3 or greater 15% 15% 15%
Rationale: Solar activity is likely to reach moderate levels with R1-R2
(Minor-Moderate) flaring, with a slight chance for X-class flares
through 04 Apr.
------
73 de Sperry N4SD
N4SD@N4SD.#TIDE.VA.USA.NOAM
Received via NOAA GOES-East satellite downlink
Return To Bulletin List