Bulletin of the American Meteorological Society, Volumen35

air mass Air Weather Service aircraft altitude American Meteorological Society analysis anticyclones associated atmosphere average balloon California Chairman charts circulation climatic climatology Cloud Seeding Committee computed correlation crachin curve cyclonic dew point difference effect equation error feet field flight forecast front gradient horizontal hygrometer indicated instruments isobars jet stream June knots Laboratory lapse rate latitude layer maps maximum mean measurements Meteor method miles minutes normal North nuclei observations obtained occur paper patterns perature period precipitation present pressure radar radiation radiosonde rainfall rawin record region reported Research sample shown in FIGURE shows silver iodide snow soil moisture soundings squall line stations storm synoptic temperature thunderstorms tion tornado trajectories tropopause turbulence U. S. Weather Bureau University values variation velocity vertical Washington wave Weather Service wind shear wind speed winter zonal