Weather and Forecasting: Recent submissions

Now showing items 2761-2780 of 3043

    • Multiscale Review of the Development and Early Evolution of the 9 April 1991 Derecho 

      Duke, James W.; Rogash, Joseph A. (American Meteorological Society, 1992)
      A case study was conducted of the development and early evolution of a severe squall line that occurred 9 April 1991. The squall line formed near the border between Arkansas and Tennessee, then raced toward the northeast ...

    • Trends in Severe Local Storm Watch Verification at the National Severe Storms Forecast Center 

      Anthony, Richard W.; Leftwich, Preston W. (American Meteorological Society, 1992)
      Trends of tornado and severe thunderstorm watch verification for the period 1967?1990 are presented. Over the past 10 years the annual number of reported severe thunderstorm events has increased substantially. In comparison, ...

    • Severe Local Storms Forecasting 

      Johns, Robert H.; Doswell, Charles A. (American Meteorological Society, 1992)
      Knowledge of severe local storms has been increasing rapidly in recent years as a result of both observational studies and numerical modeling experiments. This paper reviews that knowledge as it relates to development of ...

    • Early Severe Thunderstorm Forecasting and Research by the United States weather Bureau 

      Galway, Joseph O. (American Meteorological Society, 1992)
      In the early nineteenth century, fragmentary weather observing networks were established in portions of the United States, primarily to constitute a climatological history. The invention of the telegraph in 1833 and its ...

    • Operations of the National Severe Storms Forecast Center 

      Ostby, Frederick P. (American Meteorological Society, 1992)
      The National Severe Storms Forecast Center in Kansas City, Missouri, is composed of several operational forecasting units, all national in scope. It includes the Severe Local Storms Unit (SELS), the National Aviation Weather ...

    • Editorial 

      Unknown author (American Meteorological Society, 1992)

    • Comparisons of LFM and NGM Lifted-Index Calculations 

      Petersen, Ralph A. (American Meteorological Society, 1992)
      Several different forms of lifted index (LI) calculations are available from the Limited-Area Fine Mesh Model (LFM) and Nested-Grid Model (NGM) run operationally at the National Meteorological Center (NMC). The differences ...

    • A Neural Network Short-Term Forecast of Significant Thunderstorms 

      McCann, Donald W. (American Meteorological Society, 1992)
      Case studies are the typical means by which meteorologists pass on their knowledge of how to solve a particular weather-forecasting problem to other forecasters. A case study helps others recognize an important pattern and ...

    • An Evaluation of the Darwin Area Forecast Experiment Storm Occurrence Forecasts 

      Keenan, T.; Potts, R.; Stevenson, T. (American Meteorological Society, 1992)
      Results from real-time forecasting the occurrence of storm activity during ?break? and ?transition? season flow within two 10-km-radius circles for periods up to 3 h in the tropics near Darwin, Australia (12°S, 131°E), are ...

    • Evaluation of a Nonprobabilistic Weather Forecasting Experiment 

      Colucci, Stephen J.; Knappenberger, Paul C.; Kelly Ceppa, T. (American Meteorological Society, 1992)
      The results of experimental real-time nonprobabilistic weather forecasting at the University of Virginia during the period 1983?1988 are described. During the fall (September to December) and spring (January to May) ...

    • Temperature Forecast Biases Associated with Snow Cover in the Northeast 

      Wojcik, Gary S.; Wilks, Daniel S. (American Meteorological Society, 1992)
      The sensitivity of temperature forecast biases to the presence or absence of snow cover is investigated for the December?March periods of 1985?1986 and 1986?87 at ten stations in the northeastern United States. Forecast ...

    • Toward the Improvement of Aircraft-Icing Forecasts for the Continental United States 

      Schultz, Paul; Politovich, Marcia K. (American Meteorological Society, 1992)
      An automated procedure is developed for detecting and forecasting atmospheric conditions conductive to aircraft icing over the continental United States. The procedure uses gridded output from the Nested-Grid Model, and ...

    • Real-Time Airborne Analysis of Aircraft Data Supporting Operational Hurricane Forecasting 

      Griffin, Joseph S.; Burpee, Robert W.; Marks, Frank D.; Franklin, James L. (American Meteorological Society, 1992)
      The Hurricane Research Division has developed a technique for real-time airborne analysis of aircraft data from reconnaissance and research flights in tropical cyclones. The technique uses an onboard workstation that ...

    • Verification of Mesoscale Forecasts Made during MAP'88 and MAP'89 

      Jincai, Ding; Doswell, Charles A.; Burgess, Donald W.; Foster, Michael P.; Branick, Michael L. (American Meteorological Society, 1992)
      Two experimental forecasting projects, each called Mesoscale Applications Project (MAP), were conducted jointly by the National Severe Storms Laboratory and the National Weather Service Forecast Office at Norman, Oklahoma, ...

    • Forecasts of North Pacific Maritime Cyclones with the Navy Operational Global Atmospheric Prediction System 

      Harr, Patrick A.; Elsberry, Russell L.; Hogan, Timothy F.; Clune, William M. (American Meteorological Society, 1992)
      Seventy-two-hour forecasts of sea level cyclones from the Navy Operational Global Atmospheric Prediction System are examined. Cyclones that formed over the North Pacific region of maximum cyclogenesis frequency are included ...

    • Predicting Atlantic Seasonal Hurricane Activity 6–11 Months in Advance 

      Gray, William M.; Landsea, Christopher W.; Mielke, Paul W.; Berry, Kenneth J. (American Meteorological Society, 1992)
      A surprisingly strong long-range predictive signal exists for Atlantic-basin seasonal tropical cyclone activity. This predictive skill is related to two measures of West African rainfall in the prior year and to the phase ...

    • Current Techniques for Real-Time Evaluation of Conditional Symmetric Instability 

      Snook, John S. (American Meteorological Society, 1992)
      Banded cloudiness and precipitation are sometimes observed in convectively stable environments. These observations are often attributed to conditional symmetric instability (CSI). High-resolution operational instruments ...

    • Seasonal and Geographic Variations in Quantitative Precipitation Prediction by NMC's Nested-Grid Model and Medium-Range Forecast Model 

      Junker, Norman W.; Hoke, James E.; Sullivan, Bruce E.; Brill, Keith F.; Hughes, Francis J. (American Meteorological Society, 1992)
      This paper assesses the performance of the National Meteorological Center (NMC) Nested-Grid Model (NGM) during a period from March 1988 through March 1990, and the NMC medium-range forecast model (MRF) in two 136-day tests, ...

    • Editorial 

      Unknown author (American Meteorological Society, 1992)

    • Forecaster Workstation Design: Concepts and Issues 

      Doswell, Charles A. (American Meteorological Society, 1992)
      Some basic ideas about designing a meteorological workstation for operational weather forecasting are presented, in part as a complement to the recently published discussion of workstation design by R. R. Hoffman. Scientific ...