The table of Space Weather Alerts below shows each type of alert and their code. The equivalent NOAA Scale level is indicated and whether the warning can be extended or the alert can be continued. A description of the alert and their criteria, and sample alerts, are available online. For the latest alerts and near-real-time data displays see the Alerts Home page.
| Code | WMO ID* |
Watch, Warning, Alert, and Summary Message Name | NOAA Scale | Extended Warning Continued Alert |
|---|---|---|---|---|
| X-ray Flux Alert and Event Summaries | ||||
| ALTXMF |
WOXX01 |
ALERT: X-ray Flux exceeded M5 | R2 |
|
| SUMXM5 SUMX01 SUMX10 SUMX20 |
WOXX01 WOXX02 WOXX02 WOXX02 |
SUMMARY: X-ray Event exceeded M5 SUMMARY: X-ray Event exceeded X1 SUMMARY: X-ray Event exceeded X10 SUMMARY: X-ray Event exceeded X20 |
R2 R3 R4 R5 |
|
| Radio Burst Summaries | ||||
| ALTTP2 ALTTP4 |
WOXX04 WOXX04 |
ALERT: Type II Radio Emission ALERT: Type IV Radio Emission |
||
| SUM10R |
WOXX03 |
SUMMARY: 10cm Radio Burst | ||
| Geomagnetic Warnings, Alerts, and Watches | ||||
| WARSUD |
WOXX10 |
WARNING: Geomagnetic Sudden Impulse expected | ||
| SUMSUD |
WOXX10 |
SUMMARY: Geomagnetic Sudden Impulse | ||
| WARK04 WARK05 WARK06 WARK07 |
WOXX13 WOXX11 WOXX12 WOXX14 |
WARNING: Geomagnetic K-index of 4 expected WARNING: Geomagnetic K-index of 5 expected WARNING: Geomagnetic K-index of 6 expected WARNING: Geomagnetic K-index of 7 or greater expected |
G1 G2 G3 or greater |
Extended Warning Extended Warning Extended Warning Extended Warning |
| ALTK04 ALTK05 ALTK06 ALTK07 ALTK08 ALTK09 |
WOXX13 WOXX11 WOXX12 WOXX14 WOXX15 WOXX16 |
ALERT: Geomagnetic K-index of 4 ALERT: Geomagnetic K-index of 5 ALERT: Geomagnetic K-index of 6 ALERT: Geomagnetic K-index of 7 ALERT: Geomagnetic K-index of 8 ALERT: Geomagnetic K-index of 9 |
G1 G2 G3 G4 G5 |
|
| WATA20 WATA30 WATA50 WATA99 |
WOXX20 WOXX21 WOXX22 WOXX23 |
WATCH: Geomagnetic A-index of 20 or greater predicted WATCH: Geomagnetic A-index of 30 or greater predicted WATCH: Geomagnetic A-index of 50 or greater predicted WATCH: Geomagnetic A-index of 100 or greater predicted |
||
| Electron Flux Alert | ||||
| ALTEF3 |
WOXX30 |
ALERT: Electron 2MeV Integral Flux exceeded 1000pfu | ||
| Proton Flux Warnings, Event Alerts, and Event Summaries | ||||
| WARPX1 |
WOXX32 |
WARNING: Proton 10MeV Integral Flux above 10pfu expected | S1 to S5 |
Extended Warning |
| ALTPX1 |
WOXX32 |
ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu | S1 |
Continued Alert |
| ALTPX2 |
WOXX32 |
ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu | S2 |
Continued Alert |
| ALTPX3 |
WOXX32 |
ALERT: Proton Event 10MeV Integral Flux exceeded 1000pfu | S3 |
Continued Alert |
| ALTPX4 |
WOXX32 |
ALERT: Proton Event 10MeV Integral Flux exceeded 10000pfu | S4 |
Continued Alert |
| ALTPX5 |
WOXX32 |
ALERT: Proton Event 10MeV Integral Flux exceeded 100000pfu | S5 |
Continued Alert |
|
SUMPX1 |
WOXX32 |
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu |
S1 |
|
|
SUMPX2 |
WOXX32 |
SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu |
S2 |
|
|
SUMPX3 |
WOXX32 |
SUMMARY: Proton Event 10MeV Integral Flux exceeded 1000pfu |
S3 |
|
|
SUMPX4 |
WOXX32 |
SUMMARY: Proton Event 10MeV Integral Flux exceeded 10000pfu |
S4 |
|
|
SUMPX5 |
WOXX32 |
SUMMARY: Proton Event 10MeV Integral Flux exceeded 100000pfu |
S5 |
|
| WARPC0 |
WOXX31 |
WARNING: Proton 100MeV Integral Flux above 1pfu expected | Extended Warning |
|
| ALTPC0 |
WOXX31 |
ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu | Continued Alert |
|
| SUMPC0 |
WOXX31 |
SUMMARY: Proton Event 100MeV Integral Flux exceeded 1pfu | ||
| Stratospheric Warming Alert | ||||
| ALTSTR |
WOXX40 |
ALERT: STRATWARM | ||
Space Environment Center, Boulder Colorado
www.sec.noaa.gov/alerts/
February 15, 2001