901
FXXX10 KWNP 061231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2026 Mar 06 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 Mar 06-Mar 08 2026 is 4.67 (NOAA Scale
G1).

NOAA Kp index breakdown Mar 06-Mar 08 2026

             Mar 06       Mar 07       Mar 08
00-03UT       1.00         3.67         4.00
03-06UT       2.67         3.33         2.00
06-09UT       1.67         2.00         2.00
09-12UT       1.67         1.67         2.00
12-15UT       3.67         3.00         2.67
15-18UT       4.00         3.33         2.67
18-21UT       4.67 (G1)    3.67         2.67
21-00UT       4.33         3.33         3.00

Rationale: Isolated G1 (Minor) geomagnetic storms are possible on 06 Mar
due to the anticipated arrival of a CIR associated with a negative
polarity coronal hole high speed stream.

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 Mar 06-Mar 08 2026

              Mar 06  Mar 07  Mar 08
S1 or greater    1%      1%      1%

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 Mar 06-Mar 08 2026

              Mar 06        Mar 07        Mar 08
R1-R2           20%           20%           20%
R3 or greater    1%            1%            1%

Rationale: There is a slight chance for R1-R2 (Minor-Moderate) radio
blackouts through 08 Mar.