NOAA Weather Alert Codes
| 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 | Continued Alert | |
| 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
|
|
|
ALTPX2
|
WOXX32
|
ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu |
S2
|
|
|
ALTPX3
|
WOXX32
|
ALERT: Proton Event 10MeV Integral Flux exceeded 1000pfu |
S3
|
|
|
ALTPX4
|
WOXX32
|
ALERT: Proton Event 10MeV Integral Flux exceeded 10000pfu |
S4
|
|
|
ALTPX5
|
WOXX32
|
ALERT: Proton Event 10MeV Integral Flux exceeded 100000pfu |
S5
|
|
|
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 | ||
|
SUMPC0
|
WOXX31
|
SUMMARY: Proton Event 100MeV Integral Flux exceeded 1pfu | ||
* WMO ID – WMO header identifiers appear on messages from NWS Systems, but not on SWPC messages.
Updated: February 15; 2001, Nov 24, 2004, October 1, 2007. October 26, 2010
