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000
WOXX04 KWNP 221535
ALTTP4

Space Weather Message Code: ALTTP4
Serial Number: 417
Issue Time: 2013 May 22 1530 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 May 22 1303 UTC
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.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX32 KWNP 221527
ALTPX2

Space Weather Message Code: ALTPX2
Serial Number: 53
Issue Time: 2013 May 22 1521 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2013 May 22 1520 UTC
NOAA Scale: S2 - Moderate
Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX32 KWNP 221525
ALTPX2

Space Weather Message Code: ALTPX2
Serial Number: 53
Issue Time: 2013 May 22 1521 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2013 May 22 1520 UTC
NOAA Scale: S2 - Moderate
Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX31 KWNP 221506
ALTPC0

Space Weather Message Code: ALTPC0
Serial Number: 39
Issue Time: 2013 May 22 1503 UTC

ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2013 May 22 1455 UTC
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX31 KWNP 221505
ALTPC0

Space Weather Message Code: ALTPC0
Serial Number: 39
Issue Time: 2013 May 22 1503 UTC

ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2013 May 22 1455 UTC
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX32 KWNP 221431
ALTPX1

Space Weather Message Code: ALTPX1
Serial Number: 301
Issue Time: 2013 May 22 1428 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2013 May 22 1420 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX32 KWNP 221430
ALTPX1

Space Weather Message Code: ALTPX1
Serial Number: 301
Issue Time: 2013 May 22 1428 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2013 May 22 1420 UTC
NOAA Scale: S1 - Minor
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX04 KWNP 221346
ALTTP2

Space Weather Message Code: ALTTP2
Serial Number: 856
Issue Time: 2013 May 22 1344 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 May 22 1259 UTC
Estimated Velocity: 1237 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX04 KWNP 221345
ALTTP2

Space Weather Message Code: ALTTP2
Serial Number: 856
Issue Time: 2013 May 22 1344 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 May 22 1259 UTC
Estimated Velocity: 1237 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX13 KWNP 220256
ALTK04

Space Weather Message Code: ALTK04
Serial Number: 1640
Issue Time: 2013 May 22 0250 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2013 May 22 0250 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


000
WOXX04 KWNP 201220
ALTTP2

Space Weather Message Code: ALTTP2
Serial Number: 855
Issue Time: 2013 May 20 1216 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 May 20 1141 UTC
Estimated Velocity: 1061 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

# Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Recent messages, data, and help at http://swpc.noaa.gov/alerts/
# Send questions to SWPC.Webmaster@noaa.gov


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