ZCZC SWXALTPAV
TTAA00 KWNP 292128
Space Weather Message Code: ALTPAV
Serial Number: 862
Issue Time: 2003 Oct 29 2128 UTC
UPDATE ALERT: Altitude Update for Solar Radiation Alert
Alert Conditions Began: 2003 Oct 29 2105 UTC
Comment:
A solar proton event in progress may lead to excessive radiation doses to air travelers at Corrected Geomagnetic Latitudes above 35 degrees north or south.
See map at
http://www.cami.jccbi.gov/radiation.html
See article at
http://www.usatoday.com/weather/news...ar-storm_x.htm
Current recommended maximum flight altitude: 25 000 feet.
Solar radiation
Altitude effective dose rate
(feet) (millisieverts/hour) *
-------------------------------
20 000 >0.0049
30 000 >0.023
40 000 >0.062
50 000 >0.11
60 000 >0.17
70 000 >0.25
80 000 >0.36
-------------------------------
* Estimates for high-latitude locations. Dose rates are based on near real-time GOES satellite measurements and are recalculated every three minutes.
More information at
http://www.cami.jccbi.gov/radiation.html
25 000 feet