Weather and Forecasting: Recent submissions
Now showing items 2481-2500 of 3043
-
History of Operational Use of Weather Radar by U.S. Weather Services. Part II: Development of Operational Doppler Weather Radars
(American Meteorological Society, 1998)The second part of a history of the use of storm surveillance radars by operational military and civil weather services in the United States is presented. This part describes the genesis and evolution of two operational ... -
History of Operational Use of Weather Radar by U.S. Weather Services. Part I: The Pre-NEXRAD Era
(American Meteorological Society, 1998)The first part of a history of the use of storm surveillance radars by operational military and civil weather services in the United States is presented. The history of radar meteorological research is long and distinguished ... -
Budget Cutting and the Value of Weather Services
(American Meteorological Society, 1998)The authors discuss the relationship between budget-cutting exercises and knowledge of the value of weather services. The complex interaction between quality (accuracy) and value of weather forecasts prevents theoretical ... -
A Preliminary Investigation of Temperature Errors in Operational Forecasting Models
(American Meteorological Society, 1998)Temperatures taken from model output (FOUS reports) routinely transmitted by the National Centers for Environmental Prediction are tabulated to determine errors during three months in the summer of 1996. These short-term ... -
Development of an Objective Scheme to Estimate Tropical Cyclone Intensity from Digital Geostationary Satellite Infrared Imagery
(American Meteorological Society, 1998)The standard method for estimating the intensity of tropical cyclones is based on satellite observations (Dvorak technique) and is utilized operationally by tropical analysis centers around the world. The technique relies ... -
Improving Nowcasts of Road Surface Temperature by a Backpropagation Neural Network
(American Meteorological Society, 1998)Accurate numerical prediction of road ice is important in cutting winter road maintenance costs, reducing environmental damage from oversalting, and providing safer roads for road users. In this paper, the error of road ... -
A Neural Network for Damaging Wind Prediction
(American Meteorological Society, 1998)A neural network is developed to diagnose which circulations detected by the National Severe Storms Laboratory?s Mesocyclone Detection Algorithm yield damaging wind. In particular, 23 variables characterizing the circulations ... -
Local-Domain Mesoscale Analysis and Forecast Model Support for the 1996 Centennial Olympic Games
(American Meteorological Society, 1998)The National Weather Service (NWS) developed the Olympic Weather Support System (OWSS) to provide specialized operational weather support for the 1996 Centennial Olympic Games in Atlanta. Operational implementation of the ... -
Eta Model Storm-Relative Winds Associated with Tornadic and Nontornadic Supercells
(American Meteorological Society, 1998)A conceptual model for sustained low-level mesocyclones is tested as a tornado forecast tool with observations and forecasts from the operational Eta Model. In the conceptual model, a balance between low-level storm inflow ... -
A Diagnostic Study of Three Heavy Precipitation Episodes in the Western Mediterranean Region
(American Meteorological Society, 1998)A diagnostic evaluation of three project ANOMALIA case studies involving heavy precipitation in the western Mediterranean region has been carried out. The evaluation shows the unique characteristics of each event, as well ... -
Evaluation and Application of Conditional Symmetric Instability, Equivalent Potential Vorticity, and Frontogenetic Forcing in an Operational Forecast Environment
(American Meteorological Society, 1998)The related fields of equivalent potential temperature (?e), geostrophic momentum (Mg), equivalent potential vorticity (EPV), and frontogenetic forcing were computed, analyzed, and evaluated for two mid-Atlantic states ... -
Assessment of Quantitative Precipitation Forecasts
(American Meteorological Society, 1998)This paper reports on an assessment of quantitative precipitation forecasts (QPFs) issued by the Arkansas?Red Basin River Forecast Center during the period May?June 1995. Assessment procedures involved spatial statistical ... -
A Multivariate Frequency-Domain Approach to Long-Lead Climatic Forecasting
(American Meteorological Society, 1998)Guided by the increasing awareness and detectability of spatiotemporally organized climatic variability at interannual and longer timescales, the authors motivate the paradigm of a climate system that exhibits excitations ... -
Gridded Climatic Monthly Frequencies of Precipitation Amount for 1-, 3-, and 6-h Periods over the Conterminous United States
(American Meteorological Society, 1998)Gridded fields of monthly mean relative frequency for ≥0.10 (2.5), ≥0.25 (6.4), ≥0.50 (12.7), ≥1.00 (25.4), and ≥2.00 (50.8) in. (mm) of precipitation have been developed for 1-, 3-, and 6-h periods over the conterminous ... -
Forecasting Applications of High-Resolution Satellite Cloud Composite Climatologies
(American Meteorological Society, 1998)In this paper, the authors describe experimental forecasting tools developed from high-resolution satellite cloud composites. The satellite data were extracted from the new 5-km, hourly, global satellite database called ... -
The Early History of Probability Forecasts: Some Extensions and Clarifications
(American Meteorological Society, 1998)Heretofore it has been widely accepted that the contributions of W. E. Cooke in 1906 represented the first works related to the explicit treatment of uncertainty in weather forecasts. Recently, however, it has come to light ... -
PICTURE OF THE QUARTER: Nighttime Detection of Low-Level Thunderstorm Outflow Using a GOES Multispectral Image Product
(American Meteorological Society, 1997)No abstract available. -
On the Absence of Population Bias in the Tornado Climatology of Southwestern Ontario
(American Meteorological Society, 1997)Rural population densities and tornado incidence (confirmed and probable categories) are compared for noncoastal regions in the southwestern Ontario peninsula. No apparent relationship is found between rural population ... -
Effects of Radar Sampling on Single-Doppler Velocity Signatures of Mesocyclones and Tornadoes
(American Meteorological Society, 1997)Simulated WSR-88D (Weather Surveillance Radar-1988 Doppler) radar data were used to investigate the effects of discrete azimuthal sampling on Doppler velocity signatures of modeled mesocyclones and tornadoes at various ... -
The Moberly, Missouri, Tornado of 4 July 1995
(American Meteorological Society, 1997)Tornadic storms that occurred over northeastern Kansas and northern Missouri on 4 July 1995 are examined by combining the latest in National Weather Service technology with more routine datasets. The analysis provides an ...