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Climate Diagnostics Bulletin
Climate Diagnostics Bulletin - Home Climate Diagnostics Bulletin - Tropics Climate Diagnostics Bulletin - Forecast

 

  Extratropical Highlights

  Table of Indices  (Table 3)

  Global Surface Temperature  E1

  Temperature Anomalies (Land Only)  E2

  Global Precipitation  E3

  Regional Precip Estimates (a)  E4

  Regional Precip Estimates (b)  E5

  U.S. Precipitation  E6

  Northern Hemisphere

  Southern Hemisphere

  Stratosphere

  Appendix 2: Additional Figures

Table of Teleconnection Indices

JULY 2017

MONTH NAO EA WP EP-NP PNA TNH EATL/WRUS SCAND POLEUR
JUL 17 1.3 1.8 0.5 0.0 1.3 --- -0.6 0.0 -0.1
JUN 17 0.4 2.0 -0.8 0.5 1.2 --- 0.3 -1.4 -0.1
MAY 17 -1.7 0.5 0.7 -0.7 -0.2 --- 1.5 0.9 0.5
APR 17 1.7 -0.6 -0.4 1.0 0.1 --- 0.7 -1.4 -1.4
MAR 17 0.4 1.0 -2.1 -1.0 0.0 --- -1.0 -1.0 0.7
FEB 17 0.7 0.6 -0.1 0.2 -0.1 -0.1 1.1 0.7 -0.4
JAN 17 0.0 -1.1 0.6 0.4 -0.3 -0.3 0.6 0.2 1.0
DEC 16 0.4 0.9 1.0 --- -0.7 0.9 1.5 -1.2 -1.1
NOV 16 -0.3 -0.4 1.0 -1.4 1.4 --- -0.9 -0.1 -2.8
OCT 16 1.0 0.4 0.5 -0.8 1.5 --- -1.3 1.1 -2.9
SEP 16 0.7 3.5 -1.7 -1.4 0.1 --- 0.1 -1.0 -1.3
AUG 16 -2.2 2.1 -0.4 -0.4 -0.9 --- -3.3 -0.4 2.4
JUL 16 -1.7 1.8 -1.4 -0.4 0.5 --- -1.0 -0.7 -0.2

TABLE E1.  Standardized amplitudes of selected Northern Hemisphere teleconnection patterns for the most recent thirteen months (computational procedures are described in Fig. E7). Pattern names and abbreviations are North Atlantic Oscillation (NAO); East Atlantic pattern (EA); West Pacific pattern (WP); East-Pacific - North Pacific pattern (EP-NP); Pacific/North American pattern (PNA); Tropical/Northern Hemisphere pattern (TNH); East Atlantic/Western Russia pattern (EATL/WRUS-called Eurasia-2 pattern by Barnston and Livezey, 1987, Mon. Wea. Rev., 115, 1083-1126); Scandanavia pattern (SCAND-called Eurasia-1 pattern by Barnston and Livezey 1987); and Polar Eurasia pattern (POLEUR). No value is plotted for calendar months in which the pattern does not appear as a leading mode.


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