:Product: 19971231GEOA.txt :Issued: 1997 Dec 31 0330 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # GEOALERT WWA365 UGEOA 20401 71231 0330/ 9935/ 11311 21311 30311 99999 UGEOE 20401 71231 0330/ 30/00 99999 UGEOI 20401 71231 0330/ 30/// 10056 21010 30140 40285 50000 61607 71704 80003 90430 99999 UGEOR 20401 71231 0330/ 30/24 31103 18124 20000 30000 44316 50160 60008 35522 04000 18126 20000 30000 47503 50220 60007 41021 04000 18130 20000 30000 44312 50050 60011 21629 01000 99999 PLAIN STRATWARM ALERT/TUESDAY/STRATWARM EXISTS. MINOR WARMING FURTHER OVER THE POLAR REGION , CANADA AND CENTRAL/NORTHEAST SIBERIA. TEMPERATURE GRADIENT REVERSED BETWEEN 60N AND THE POLE FROM 30 HPA UPWARDS INTO THE UPPER STRATOSPHERE. THE WARMING OVER CENTRAL EUROPE CONTINUES.