Propagation

NOAA STI

:Product: Geophysical Alert Message wwv.txt
:Issued: 2023 Apr 05 1505 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 04 April follow.
Solar flux 136 and estimated planetary A-index 12.
The estimated planetary K-index at 1500 UTC on 05 April was 3.00.

No space weather storms were observed for the past 24 hours.

No space weather storms are predicted for the next 24 hours.

NOAA Alerts

Space Weather Message Code: ALTEF3
Serial Number: 3317
Issue Time: 2023 Apr 05 1237 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3316
Begin Time: 2023 Mar 31 2050 UTC
Yesterday Maximum 2MeV Flux: 2419 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

NOAA Observations

 

NOAA Scales Activity

NOAA Scales Activity
Range 1 (minor) to 5 (extreme)
NOAA Scale Past 24 hrs Current Fcst 24 hrs
Geomagnetic Storms
None
None
None
Solar Radiation Storms
None
None
None
Radio Blackouts
None
None
None

DX Cluster WWV announcements

HourByComment
0900AE5ESFI=143, A=4, K=1, Minor w/R1 -> Minor w/R1
0900VE1DXSFI=80, A=6, K=0, No Storms -> No Storms
0900AE5ESFI=84, A=5, K=0, No Storms -> No Storms
0900VE7CCSFI=87, A=5, K=3, No Storms -> Minor w/G1
0900VE1DXSFI=91, A=4, K=0, No Storms -> No Storms

Propagation Links

TitleRating
Sunrise/Sunset tables by NOAA
Sunrise/Sunset by U.S. Naval Observatory
3-Day Forecast of Space Weather Conditions
NOAA Geomagnetic Field Synthesis Program
Computes the estimated values of Earth's magnetic field, including magnetic declination (D), based on the current International Geomagnetic Reference Field (IGRF).
CT1BOH Propagation Page
N6RT Propagation Information
The Solar and Heliospheric Observatory
Current Solar Images
Ionosphere Data Archived at National Geophysical Data Center (NGDC)
High Frequency Active Auroral Research Program
HAARP is a scientific endeavor aimed at studying the properties and behavior of the ionosphere, with particular emphasis on being able to understand and use it to enhance communications.
AD5Q Propagation Forecast Archive
Eleven years of propagation reports from February 1988 to January 1999 focused on DX openings from North America.
Solar Terrestrial Physics
Data from Earth's upper atmosphere and space environment to the surface of the Sun, and Earth observations from space.
The Aurora Page
Information, links and images about the "Northern Lights".