Weather and Forecasting: Recent submissions
Now showing items 2681-2700 of 3043
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Prediction of Central Arizona Convection. Part I: Evaluation of the NGM and Eta Model Precipitation Forecasts
(American Meteorological Society, 1994)The utility of numerical model guidance produced by the National Meteorological Center has been evaluated for the forecast of convection over central Arizona during the summer monsoon season. Model output from the Nested ... -
Analysis and Simulation of a Winter Storm over Utah
(American Meteorological Society, 1994)The evolution of a major winter storm over Utah during 6?7 January 1992 is analyzed using surface and upper-air observations and satellite imagery. A mesoscale model is used to deduce the dynamical processes that took place ... -
Anchorage Windstorm of 1 December 1992
(American Meteorological Society, 1994)On 1 December 1992 a strong downslope windstorm with an atypical damage pattern hit Anchorage. Downslope windstorms are common in Anchorage from September through April. Typically damaging winds from these storms are ... -
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On the Weights for an Ensemble-Averaged 6–10-Day Forecast
(American Meteorological Society, 1994)A scheme to optimally weight the members of an ensemble of forecasts is discussed in the framework of calculating an as accurate as possible ensemble average. Results show, relative to a single member, a considerably ... -
A Sea-Ice Albedo Experiment with the NMC Medium Range Forecast Model
(American Meteorological Society, 1994)The sea-ice albedo treatment currently used in the National Meteorological Center Medium Range Forecast Model was a carryover from earlier models. A more modern treatment is shown to improve forecast skill marginally, as ... -
Assimilation of ERS-1 Altimeter Wave Heights in an Operational Numerical Wave Model
(American Meteorological Society, 1994)Observed significant wave heights (SWH) from ERS-1 have been received and evaluated at the Norwegian Meteorological Institute (DNMI) since August 1991. The observations were found to be of high quality. Since January 1992 ... -
Observed and Modeled Wind and Water-Level Response from Tropical Storm Marco (1990)
(American Meteorological Society, 1994)The Hurricane Research Division (HRD) analyzes surface wind fields in tropical storms and hurricanes using surface wind observations and aircraft flight-level wind measurements in the vicinity of the storms. The analyzed ... -
Wind Profiler Observations of Tropical Storm Flo at Saipan
(American Meteorological Society, 1994)Wind profiler and serial sounding observations extending to the upper troposphere are used to analyze Tropical Storm Flo (1990) as it passed within 115 km of the experimental site on Saipan. These data resolve details of ... -
Cold Fronts over Southeastern Australia: Their Representation in an Operational Numerical Weather Prediction Model
(American Meteorological Society, 1994)The aim of this paper is to assess the ability of a numerical weather prediction model to simulate cold fronts over southeastern Australia. A total of nine summertime fronts is studied with the research version of the ... -
Real-Time Forecasting of the Western Australian Summertime Trough: Evaluation of a New Regional Model
(American Meteorological Society, 1994)The real-time prediction of the location, strength, and structure of the summertime heat trough is a major forecasting problem over Western Australia. Maximum temperatures, wind strength and direction along the west coast, ... -
An Operational System for Generating Cloud Drift Winds in the Australian Region and Their Impact on Numerical Weather Prediction
(American Meteorological Society, 1994)The Australian Bureau of Meteorology has, since June 1992, produced cloud drift wind data for operational use. These data are used in the analysis cycle of the local operational numerical weather prediction system. This ... -
Autumnal Return of Tropical Air to the Gulf of Mexico's Coastal Plain
(American Meteorological Society, 1994)The return of tropical air from the Gulf of Mexico is examined in the autumnal cool season. Results from the thermodynamic equilibrium model of Betts and Ridgway are used to calculate the equilibrium equivalent potential ... -
The Operational Recognition of Supercell Thunderstorm Environments and Storm Structures
(American Meteorological Society, 1994)Supercell thunderstorm forecasting and detection is discussed, in light of the disastrous weather events that often accompany supercells. The emphasis is placed on using a scientific approach to evaluate supercell potential ... -
The Preconvective Environment of Summer Thunderstorms over the Florida Panhandle
(American Meteorological Society, 1994)The preconvective environment of summer thunderstorms over the Florida Panhandle is investigated. Geostationary satellite imagery as well as surface and radiosonde data were examined during the summers of 1990 and 1991. ... -
On the Incidence of Tornadoes in California
(American Meteorological Society, 1994)Climatological analyses of tornado occurrence in the state of California for the period 1950?1992 are presented. In constructing these analyses, the official historical record of California tornadoes was supplemented and ... -
Convective and Rotational Parameters Associated with Three Tornado Episodes in Northern and Central California
(American Meteorological Society, 1994)An overview of the synoptic and subsynoptic controls on three tornado episodes (seven tornadoes) in northern and central California during December 1992 is presented and compared to the ?prototype? documented for the 24 ... -
The New NMC Mesoscale Eta Model: Description and Forecast Examples
(American Meteorological Society, 1994)In mid-1994 a new version of the Eta Model will begin producing operational forecast guidance down to mesoscale ranges. This version will have a horizontal resolution of approximately 30 km and about 50 layers in the ... -
The Value of NDBC Observations during March 1993's “Storm of the Century”
(American Meteorological Society, 1994)National Data Buoy Center (NDBC) observations from the western Gulf of Mexico provided several early indications of more rapid cyclogenesis on 12 March 1993 than was forecast by numerical weather prediction (NWP) models. ... -
An Algorithm for Forecasting Mountain Wave–Related Turbulence in the Stratosphere
(American Meteorological Society, 1994)A global mountain wave parameterization for prediction of wave-related displacements and turbulence is described. The parameterization is used with input from National Meteorological Center analyses of wind and temperature ...