The general pattern of anomalies is again similar in the Pacific sector where negative anomalies dominant the Gulf of Alaska and the southern U.S., while there are positive anomalies across broad areas of Canada. Both the observed and predicted zonal wind anomalies in the region of the subtropical jet in the eastern Pacific and across the southern U.S. are stronger than they were in December. Precipitation Anomaly over the continental United States expressed as a percentage of normal. The contour interval is 20 m. Figure 2. The contour interval is 40 m. Figure 3.
Blue colors represent negative anomalies, greens, yellows, orange, and reds positive anomalies.
Percent of normal precipitation in the United States. Verification Figure 6. The contour interval is 30 m. Figure 7. Percentage of Normal Precipitation over the United States for December 1997. The contour interval is 30 m. Figure 10.