Surface weather charts

FIGURE 4-21 A surface weather chart for 1200 GMT (700 EST), March 5, 1964, showing information available at each observation station. The chart also shows high- and low-pressure areas, fronts, and isobars constructed by interpolation between stations. (900 or 1000 millibars need to be added as appropriate to values see text. Adapted from FAA, 1965). 

Of the collection sites are shown in Figure 1. The corresponding meteorological data for each storm are obtained from the several ESSA Weather Bureau stations also shown in Figure 1. For each storm, vertical cross sections of the atmosphere are constructed from the available radiosonde data, and the synoptic conditions are taken from the surface, 500 mbars, 300 mbars, and other facsimile charts. 

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