Abstract: Many studies of tornado?severe local storms outbreaks have called attention to the role of the jet stream. In fact, the jet has become an accepted part of a climatological model for tornado occurrences in the central and ...

Abstract: The central and eastern United States is divided into 157 overlapping square cells. Within each cell, the tornadoes that occurred from 1916 to 1964 are summed in 1-hr increments. The resulting histograms are subjected to ...

Abstract: Statistical problems that may be encountered in fitting autoregressive-moving average (ARMA) processes to meteorological time series are described. Techniques that lead to an increased likelihood of choosing the most ...

Abstract: No abstract available.

Abstract: Abrupt spring and autumnal changes in the daily temperature range, from low winter values to higher nonwinter values, were noted in the Minneapolis-St. Paul temperature record. Since this feature was even more evident in ...

Abstract: A little noticed but remarkably consistent and agriculturally favorable climatic period existed for approximately 18 years, beginning in the mid-1950s in the U.S. Corn Belt and perhaps even earlier in Minnesota. The full ...

Abstract: The frequency that clear days (0.0 sky cover) occur within each week of the year was determined for 14 North-Central region stations. A remarkably consistent and nearly region-wide feature of a high frequency of clear days ...

Abstract: In order to better estimate urban influence on local climate, mean temperature series were corrected for biases and heterogeneities. Annual, January and July mean temperatures for 21 stations in and around Minneapolis-St. ...

Abstract: An analysis of air temperature and radiation regimes an days with and without a snow cover at the St. Paul, Minnesota, climatological observatory was made based on a 16 December-15 March 23-yr temperature record and a solar ...