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 ALERT CONTINUED-Proton Event:MODERATE

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V I S U A L I Z Z A    D I S C U S S I O N E
ik3iul Inserito il - 06/09/2017 : 10:00:33
Proton Event products are issued for several thresholds and for two particle energy levels. The ¡Ý10 MeV products match the NOAA Solar Radiation Storm (S-scale) thresholds (10, 100, 1000, 10000, 100000 pfu), based upon values observed or expected on the primary GOES satellite. The ¡Ý100 MeV products are based on a single flux threshold of 1 proton flux unit (pfu).



PFU=PROTON FLUX UNIT

INNALZAMENTO MUF IONOSONDA ROMA MUF ORE 08=21 MHZ
E. SPORADICO 108 KM PRESENTE
GLOBAL IONOSPHERIC MAP MUF VALORI CRESCENTI
JA 20
ZS 24
ZL 20

============== ALERT ALERT CONTINUED===================







:Product: SWPC Space Weather Alerts ALTS.txt
:Issued: 2017 Sep 06 0748 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# See http://swpc.noaa.gov/alerts/ for description and other displays
# Send comments and suggestions to SWPC.Webmaster@noaa.gov
#
# SWPC Space Weather Alerts Issued in the last 24 hours
#---------------------------------------------------------------------

Space Weather Message Code: SUMPX2
Serial Number: 40
Issue Time: 2017 Sep 06 0620 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2017 Sep 05 0715 UTC
Maximum Time: 2017 Sep 05 1930 UTC
End Time: 2017 Sep 05 2350 UTC
Maximum 10MeV Flux: 210 pfu
NOAA Scale: S2 - Moderate

Comment: Greater than 10MeV @ 10pfu (S1-Minor) event remains in effect.
www.swpc.noaa.gov/noaa-scales-explanation

#-------------------------------------------------
Space Weather Message Code: ALTEF3
Serial Number: 2655
Issue Time: 2017 Sep 06 0501 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2654
Begin Time: 2017 Sep 01 1350 UTC
Yesterday Maximum 2MeV Flux: 3777 pfu
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

#-------------------------------------------------
Space Weather Message Code: WARPX1
Serial Number: 464
Issue Time: 2017 Sep 05 2139 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 463
Valid From: 2017 Sep 05 0030 UTC
Now Valid Until: 2017 Sep 07 0400 UTC
Warning Condition: persistence
Predicted NOAA Scale: S2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

#-------------------------------------------------
Space Weather Message Code: WATA50
Serial Number: 62
Issue Time: 2017 Sep 05 1714 UTC

WATCH: Geomagnetic Storm Category G3 Predicted
Highest Storm Level Predicted by Day:
Sep 06: G3 (Strong) Sep 07: G3 (Strong) Sep 08: None (Below G1)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

#-------------------------------------------------
Space Weather Message Code: WATA30
Serial Number: 163
Issue Time: 2017 Sep 05 1313 UTC

WATCH: Geomagnetic Storm Category G2 Predicted
Highest Storm Level Predicted by Day:
Sep 05: None (Below G1) Sep 06: G2 (Moderate) Sep 07: G2 (Moderate)
THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

#-------------------------------------------------
Space Weather Message Code: ALTTP4
Serial Number: 539
Issue Time: 2017 Sep 05 1221 UTC

ALERT: Type IV Radio Emission
Begin Time: 2017 Sep 05 1139 UTC
www.swpc.noaa.gov/noaa-scales-explanation
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

#-------------------------------------------------
Space Weather Message Code: WARPX1
Serial Number: 463
Issue Time: 2017 Sep 05 1137 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 462
Valid From: 2017 Sep 05 0030 UTC
Now Valid Until: 2017 Sep 05 2359 UTC
Warning Condition: persistence
Predicted NOAA Scale: S1 - Minor
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

#-------------------------------------------------
Space Weather Message Code: ALTEF3
Serial Number: 2654
Issue Time: 2017 Sep 05 0826 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2653
Begin Time: 2017 Sep 01 1350 UTC
Yesterday Maximum 2MeV Flux: 15827 pfu
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

#-------------------------------------------------




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