Weather and Forecasting: Recent submissions
Now showing items 1881-1900 of 3043
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Retrieval of High-Resolution Wind Fields over the Southern Korean Peninsula Using the Doppler Weather Radar Network
(American Meteorological Society, 2009)The performance of a radar network for retrieving high-resolution wind fields over South Korea is examined. The network consists of a total of 18 operational radars. All of the radars possess the Doppler capability and ... -
A Technique to Determine the Radius of Maximum Wind of a Tropical Cyclone
(American Meteorological Society, 2008)A simple technique is developed that enables the radius of maximum wind of a tropical cyclone to be estimated from satellite cloud data. It is based on the characteristic cloud and wind structure of the eyewall of a tropical ... -
Communicating Uncertainty in Weather Forecasts: A Survey of the U.S. Public
(American Meteorological Society, 2008)Weather forecasts are inherently uncertain, and meteorologists have information about weather forecast uncertainty that is not readily available to most forecast users. Yet effectively communicating forecast uncertainty ... -
QuikSCAT Impacts on Coastal Forecasts and Warnings: Operational Utility of Satellite Ocean Surface Vector Wind Data
(American Meteorological Society, 2008)This study reports on the operational utility of ocean surface vector wind (SVW) data from Quick Scatterometer (QuikSCAT) observations in the National Oceanic and Atmospheric Administration (NOAA) National Weather Service ... -
Estimating Maximum Surface Winds from Hurricane Reconnaissance Measurements
(American Meteorological Society, 2009)Radial profiles of surface winds measured by the Stepped Frequency Microwave Radiometer (SFMR) are compared to radial profiles of flight-level winds to determine the slant ratio of the maximum surface wind speed to the ... -
The Regime Dependence of Optimally Weighted Ensemble Model Consensus Forecasts of Surface Temperature
(American Meteorological Society, 2008)Previous methods for creating consensus forecasts weight individual ensemble members based upon their relative performance over the previous N days, implicitly making a short-term persistence assumption about the underlying ... -
The Gridding of MOS
(American Meteorological Society, 2009)Model output statistics (MOS) guidance forecasts have been produced at stations and provided to National Weather Service forecasters and private entities for over three decades. As the numerical weather prediction models ... -
Reply
(American Meteorological Society, 2008)Veerasamy has made several comments concerning the results and methods presented in a recent article by the authors titled ?Reexamination of Tropical Cyclone Wind?Pressure Relationships.? One comment concerns the terminology ... -
NWS Tornado Warnings with Zero or Negative Lead Times
(American Meteorological Society, 2009)During a 5-yr period of study from 2000 to 2004, slightly more than 10% of all National Weather Service (NWS) tornado warnings were issued either simultaneously as the tornado formed (i.e., with zero lead time) or minutes ... -
Rapid Sampling of Severe Storms by the National Weather Radar Testbed Phased Array Radar
(American Meteorological Society, 2008)A key advantage of the National Weather Radar Testbed Phased Array Radar (PAR) is the capability to adaptively scan storms at higher temporal resolution than is possible with the Weather Surveillance Radar-1988 Doppler ... -
Numerical Simulations of Wind Wave Growth under a Coastal Wind Jet through the Kanmon Strait
(American Meteorological Society, 2008)The development of a coastal wind jet flowing through the Kanmon Strait and the associated wind wave growth are investigated from a case study on 24?26 July 1999. This study presents a realistic example of fetch-limited ... -
Operational Implementation of COSMIC Observations into NCEP’s Global Data Assimilation System
(American Meteorological Society, 2008)The next generation of NCEP?s Global Data Assimilation System became operational on 1 May 2007. This system incorporates the assimilation of global positioning system (GPS) radio occultation (RO) profiles from the Constellation ... -
Comments on “Reexamination of Tropical Cyclone Wind–Pressure Relationship”
(American Meteorological Society, 2008)In their study on the wind?pressure relationship (WPR) that exists in tropical cyclones, Knaff and Zehr presented results of the use of the Dvorak Atlantic WPR for estimating central pressure and maximum wind speed of ... -
A Simple Seasonal Forecast Update of Tropical Cyclone Activity
(American Meteorological Society, 2008)A simple method based on the cumulative number of tropical cyclones (TCs) up to a given month in the early season is proposed to update the seasonal prediction of the annual number of TCs in a given ocean basin. For the ... -
Suitability of the Weather Research and Forecasting (WRF) Model to Predict the June 2005 Fire Weather for Interior Alaska
(American Meteorological Society, 2008)Standard indices used in the National Fire Danger Rating System (NFDRS) and Fosberg fire-weather indices are calculated from Weather Research and Forecasting (WRF) model simulations and observations in interior Alaska for ... -
A Two-Season Impact Study of NOAA Polar-Orbiting Satellites in the NCEP Global Data Assimilation System
(American Meteorological Society, 2008)Observing system experiments (OSEs) during two seasons are used to quantify the important contributions made to forecast quality from the use of the National Oceanic and Atmospheric Administration?s (NOAA) polar-orbiting ... -
Impact of Atmospheric Infrared Sounder Data on the Numerical Simulation of a Historical Mumbai Rain Event
(American Meteorological Society, 2008)In this paper, the three-dimensional variational data assimilation scheme (3DVAR) in the fifth-generation Pennsylvania State University?National Center for Atmospheric Research (Penn State?NCAR) Mesoscale Model (MM5) is ... -
Hydrometeorological Short-Range Ensemble Forecasts in Complex Terrain. Part I: Meteorological Evaluation
(American Meteorological Society, 2008)This paper addresses the question of whether it is better to include lower-resolution members of a nested suite of numerical precipitation forecasts to increase ensemble size, or to utilize high-resolution members only to ... -
Statistical Modeling of Downslope Windstorms in Boulder, Colorado
(American Meteorological Society, 2008)Downslope windstorms are of major concern to those living in and around Boulder, Colorado, often striking with little warning, occasionally bringing clear-air wind gusts of 35?50 m s?1 or higher, and producing widespread ... -
Evaluation of Short-Range Quantitative Precipitation Forecasts from a Time-Lagged Multimodel Ensemble
(American Meteorological Society, 2009)Short-range quantitative precipitation forecasts (QPFs) and probabilistic QPFs (PQPFs) are investigated for a time-lagged multimodel ensemble forecast system. One of the advantages of such an ensemble forecast system is ...