:Product: 19990226GEOA.txt :Issued: 1999 Feb 26 0330 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # GEOALERT WWA057 UGEOA 20401 90226 0330/ 9935/ 11261 20261 30261 99999 UGEOE 20401 90226 0330/ 25/00 99999 UGEOI 20401 90226 0330/ 25/// 10066 21200 30080 40010 50000 62407 71604 80004 90070 99999 UGEOR 20401 90226 0330/ 25/24 26104 18467 20000 30000 41001 50000 60002 44915 00000 18470 20000 30100 43312 50040 60009 23223 02000 18471 20000 30100 42012 50020 60011 12630 02000 18472 20000 30100 42012 50010 60004 15030 01000 99999 PLAIN STRATWARM ALERT/THURSDAY/STRATWARM EXISTS. AN INTENSE WARMING, CENTERED OVER THE SIBERIAN ARCTIC, COVERS THE WHOLE POLAR REGION, SIBERIA, ALASKA AND WESTERN CANADA AT 10HPA. A LOCAL WARMING EXISTS OVER CENTRAL AND EASTERN EURO- PE, SPREADING NORTHEASTWARDS. THE COLD CENTER SOUTH OF ICELAND IS WEAKENING. MEAN ZONAL WIND AT 60N IS WEAKENING IN THE LOWER AND MIDDLE STRATOSPHERE AND REACHED EASTERLY DIRECTION IN THE UPPER STRATOSPHERE. TEMPERATURE GRADIENT REVERSED BETWEEN 60N AND THE POLE AT 50HPA AND ABOVE IN THE MIDDLE AND UPPER STRATOSPHERE. FINAL WARMING IN PROGRESS.