Climate Prediction Center

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Climate Diagnostics Bulletin

Tropical Highlights

Table of Atmospheric Indices (Table 1)

Table of Oceanic Indices (Table 2)

Time Series

Time-Longitude Sections

Mean & Anomaly Fields

Appendix 1: Outside Contributions

Table of Atmospheric Indices

MARCH 2024

	SLP ANOMALIES		TAHITI	850-hPa ZONAL WIND INDEX			200-hPa WIND INDEX	OLR Index
MONTH			minus	5N-5S	5N-5S	5N-5S	5N-5S	5N-5S
	TAHITI	DARWIN	DARWIN SOI	135E-180	175W-140W	135W-120W	165W-110W	160E-160W
MAR 24	0.6	0.0	0.4	1.0	0.2	0.0	0.4	0.3
FEB 24	-1.2	1.4	-1.4	0.1	-0.4	-0.9	-2.0	-1.1
JAN 24	0.4	-0.5	0.5	0.6	0.0	-0.6	-1.3	-0.0
DEC 23	0.2	0.6	-0.2	0.1	-0.9	-1.5	-1.6	-1.3
NOV 23	-0.1	1.3	-0.8	-0.5	-1.2	-1.1	-1.7	-1.2
OCT 23	1.2	2.1	-0.5	-0.6	-0.8	-1.2	-0.9	-0.6
SEP 23	-0.9	1.4	-1.3	0.1	-0.3	0.5	0.5	-0.8
AUG 23	0.2	1.7	-0.8	-0.3	-0.6	-0.1	-0.6	-0.3
JUL 23	0.2	0.7	-0.3	0.1	0.3	1.3	0.6	-0.7
JUN 23	0.3	-0.1	0.3	0.4	0.1	0.4	-0.4	-0.3
MAY 23	-0.3	1.6	-1.0	-0.4	0.4	0.6	1.3	-0.2
APR 23	-0.3	-0.8	0.2	0.3	0.5	0.2	1.1	0.6
MAR 23	0.4	0.1	0.2	0.2	0.7	0.2	1.0	1.4

TABLE 1. Atmospheric index values for the most recent 12 months. Indices are standardized by the mean annual standard deviation, except for the Tahiti and Darwin SLP anomalies which are in units of hPa. Positive (negative) values of 200-hPa zonal wind index imply westerly (easterly) anomalies. Positive (negative) values of 850-hPa zonal wind indices imply easterly (westerly) anomalies. Anomalies are departures from the 1991-2020 base period means.


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