Monthly analysis differences reflect inter-seasonal variations. Contour intervals are 4 mb. Height Figure 1.1.2.1 Same as 1.1.1.1 except for 1000 mb heights in meters.
Vector length is proportional to speed.
Vector length is proportional to the magnitude of the mean vector wind error. Height Figure 1.1.4.1 Same as 1.1.2.1 except for mean analyzed 500 mb heights. Contours are 60 meter intervals . Wind Figure 1.1.5.1 Same as 1.1.3.1 except for 250 mb wind vectors and isotachs.