MONTH EP NP PNA EATL/

WRUS

SCAND
JAN 00 0.6 --- -1.0 0.0 -1.5
DEC 99 0.9 --- -1.6 -1.1 1.2
NOV 99 0.5 --- 0.3 -0.5 0.6
OCT 99 0.8 --- -0.5 -1.1 0.2
SEP 99 --- --- -0.5 0.2 0.6
AUG 99 --- --- 0.5 --- -0.8
JULY 99 0.4 -2.3 --- --- ---
JUNE 99 0.8 0.1 --- --- ---
MAY 99 0.6 -0.2 -1.0 1.6 -0.6
APR 99 1.1 -0.5 -0.4 0.0 0.0
MAR 99 0.0 -1.0 0.9 -1.1 -0.2
FEB 99 2.1 --- 0.0 0.3 -1.7
JAN 99 1.2 --- -0.3 -0.7 0.0

Standardized amplitudes of selected Northern Hemisphere teleconnection patterns for the most recent thirteen months. Pattern names and abbreviations are: East Pacific pattern (EP); North Pacific pattern (NP); Pacific/ North American pattern (PNA); East Atlantic/ Western Russia pattern (EATL/ WRUS- called Eurasia-2 pattern by Barnston and Livezey, 1987, Mon. Wea. Rev., 6, 1083-1126); and Scandinavia pattern (SCAND- called Eurasia-1 pattern by Barnston and Livezey 1987). No value is plotted when a pattern does not appear as a leading mode in that month.