Routine Space Environment Product (Daily)
Issued by NWS
Issued by NWS
906
FXXX10 KWNP 280031
DAYTDF
:Product: 3-Day Forecast
:Issued: 2024 May 28 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 28-May 30 2024 is 4.00 (below NOAA
Scale levels).
NOAA Kp index breakdown May 28-May 30 2024
May 28 May 29 May 30
00-03UT 2.33 2.00 3.00
03-06UT 3.00 1.67 2.67
06-09UT 2.00 2.00 2.00
09-12UT 2.00 2.00 1.67
12-15UT 1.33 2.33 1.33
15-18UT 2.00 3.67 1.67
18-21UT 2.00 4.00 2.00
21-00UT 2.33 2.67 2.00
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 28-May 30 2024
May 28 May 29 May 30
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
Radio blackouts reaching the R3 levels were observed over the past 24
hours. The largest was at May 27 2024 0708 UTC.
Radio Blackout Forecast for May 28-May 30 2024
May 28 May 29 May 30
R1-R2 55% 60% 60%
R3 or greater 25% 30% 30%
Rationale: Occasional R1/R2 (Minor-Moderate) Radio Blackouts are likely
with a chance for isolated R3 (Strong) Radio Blackouts through 30 May.