Routine Space Environment Product (Daily)
Issued by NWS

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000
FXXX10 KWNP 301231
DAYTDF

:Product: 3-Day Forecast
:Issued: 2017 Mar 30 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 5 (NOAA Scale
G1).
The greatest expected 3 hr Kp for Mar 30-Apr 01 2017 is 5 (NOAA Scale
G1).

NOAA Kp index breakdown Mar 30-Apr 01 2017

            Mar 30     Mar 31     Apr 01
00-03UT        3          4          4
03-06UT        5 (G1)     4          3
06-09UT        3          3          3
09-12UT        3          3          3
12-15UT        3          3          3
15-18UT        3          3          3
18-21UT        4          3          4
21-00UT        4          4          3

Rationale: The geomagnetic field is likely to see an isolated period of
G1 (Minor) storming on day one (30 Mar), due to persistent CH HSS
effects. There is a chance for G1 storm levels on days two and three (31
Mar-1 Apr) as CH HSS influences continue.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-13 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 30-Apr 01 2017

              Mar 30  Mar 31  Apr 01
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 30-Apr 01 2017

              Mar 30        Mar 31        Apr 01
R1-R2           10%           10%           10%
R3 or greater    1%            1%            1%

Rationale: No R1 (Minor) or greater radio blackouts are expected.  No
significant active region flare activity is forecast.


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