706
FXXX10 KWNP 241231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2024 Jun 24 1230 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 Jun 24-Jun 26 2024 is 2.33 (below NOAA
Scale levels).

NOAA Kp index breakdown Jun 24-Jun 26 2024

             Jun 24       Jun 25       Jun 26
00-03UT       1.67         1.67         1.67
03-06UT       1.33         2.00         2.00
06-09UT       0.67         1.33         1.33
09-12UT       1.33         1.33         1.33
12-15UT       2.00         0.67         1.33
15-18UT       2.00         1.33         1.00
18-21UT       2.00         1.33         1.33
21-00UT       2.33         1.67         1.67

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 Jun 24-Jun 26 2024

              Jun 24  Jun 25  Jun 26
S1 or greater   15%      5%      5%

Rationale: There is a slight chance for S1 (Minor) storms on 24 Jun.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R2 levels were observed over the past 24
hours. The largest was at Jun 23 2024 1301 UTC.

Radio Blackout Forecast for Jun 24-Jun 26 2024

              Jun 24        Jun 25        Jun 26
R1-R2           60%           60%           40%
R3 or greater   15%           15%            5%

Rationale: R1-R2 (Minor-Moderate) radio blackouts are likely on 24-25
Jun, with a chance for R1-R2 events on 26 Jun. There is a slight chance
for R3 (Strong) or greater events on 24-25 Jun.