:Product: 19981218GEOA.txt
:Issued: 1998 Dec 18 0330 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Environment Center and the U.S. Air Force.
#
GEOALERT WWA352
UGEOA 20401 81218 0330/ 9935/
11181 20183 30181
99999
UGEOE 20401 81218 0330/ 17/05
07402 0745/ 07492 23211 36503 02002 34627 98409
14122 1418/ 14222 17201 36102 09601 35128 98409
14582 1458/ 14582 9//99 01302 0//// ///// 9////
17462 1753/ 17572 16410 01102 03101 17017 98415
18092 1815/ 18372 14500 01902 0//// 36616 98408
99999
UGEOI 20401 81218 0330/ 17///
10093 21461 30000 40010 50100 65907 71604 80106 90460
99999
UGEOR 20401 81218 0330/ 17/24 18106
18406 20000 30000 43212 50030 60003 35926 01000
18408 20000 30300 44212 50180 60006 36517 15100
18409 20100 30710 45223 50190 60016 35028 17100
18410 20000 30000 47301 50050 60002 40424 02000
18414 20000 30000 41001 50000 60001 13425 01000
18415 20000 30620 42012 50010 60005 17219 16000
99999
PLAIN
STRATWARM ALERT/THURSDAY/STRATWARM EXISTS.
MAJOR WARMING EXISTS.
A STRONG ANTICYCLONE AND A VERY INTENSE WARMING OVER THE SI-
BERIAN/CANADIAN ARCTIC DOMINATE THE POLAR REGION AND DISPLA-
CE THE VORTEX CENTRE TO THE CENTRAL URAL AREA. MEAN ZONAL
WIND AT 60N IS FROM EAST AT 10HPA AND ABOVE IN THE UPPER
STRATOSPHERE AND THE TEMPERATURE GRADIENT REVERSED BETWEEN
60N AND THE POLE IN THE WHOLE STRATOSPHERE.