Weather and Forecasting: Recent submissions
Now showing items 3001-3020 of 3043
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Operational Forecasting of Lake Effect Snowfall in Western and Central New York
(American Meteorological Society, 1987)Lake effect snowstorms frequently produce heavy snow in western and central New York State during the late fall and winter months when the waters of Lakes Erie and Ontario are relatively ice free. Mesoscale snowbands account ... -
The Interaction of Jet Streak Circulations during Heavy Snow Events along the East Coast of the United States
(American Meteorological Society, 1987)The interaction of transverse vertical circulations associated with two separate jet steak/trough systems is found to be a common feature of cyclogenetic events which produce heavy snow along the East Coast of the United ... -
A Moisture Budget Analysis of the Protracted Heat Wave in the Southern Plains during the Summer of 1980
(American Meteorological Society, 1987)Extreme heat and drought plagued much of the south central United States during the summer of 1980 in response to a quasi-stationary persistent anticyclone aloft. Numerous weather reporting stations in the Southern Plains ... -
Numerical Simulation of a Satellite-Observed Calm Zone in Montetey Bay, California
(American Meteorological Society, 1987)Satellite imagery from 18 April 1978 suggests the presence of a semicircular zone of calm or new-calm seas in Monterey Bay, California. It is hypothesized that sea breeze circulations account for the calm zone in the bay, ... -
The “Banana Belt” of the Coastal Regions of Southern Oregon and Northern California
(American Meteorological Society, 1987)The coastal regions of southern Oregon and northern California can be considerably warmer than locations to the north and south when air descends the substantial mountain barrier to the east. This paper describes the event ... -
On the Relationship between the Accuracy and Value of Forecasts in the Cost–Loss Ratio Situation
(American Meteorological Society, 1987)This paper explores the relationship between the quality and value of imperfect forecasts. It is assumed that these forecasts are produced by a primitive probabilistic forecasting system and that the decision-making problem ... -
The Variation of Track Forecast Difficulty among Tropical Cyclone Basins
(American Meteorological Society, 1987)Tropical cyclone track forecast error ranges widely among individual storms, as well as globally. To study its regional variability, structurally identical climatology-and-persistence (CLIPER) track forecast models were ... -
An Alternate Procedure for Analyzing Surface Geostraphic Winds and Pressure over Elevated Terrain
(American Meteorological Society, 1987)A methodology to analyze a flat surface geostrophic wind and pressure is presented which eliminates the arbitrariness of the standard reduction of surface pressure to mean sea level. The procedure utilizes a surface ... -
Winter Forecast Problems Associated with Light to Moderate Snow Events in the Mid-Atlantic States on 14 and 22 February 1986
(American Meteorological Society, 1987)Two cases of light and moderate snow events over the Washington, DC area are presented for 14 and 22 February 1986. These cases were selected since the upper-tropospheric and surface features were quite similar, yet ... -
Quantification of Uncertainity in Fire-Weather Forecasts: Some Results of Operational and Experimental Forecasting Programs
(American Meteorological Society, 1987)Fire-weather forecasts (FWFs) prepared by National Weather Service (NWS) forecasters on an operational basis are traditionally expressed in categorical terms. However, to make rational and optimal use of such forecasts, ... -
Cold Air Damming by the Front Range of the Colorado Rockies and its Relationship to Locally Heavy Snows
(American Meteorological Society, 1987)Heavy snowstorms occur regularly along Colorado's Front Range and cause significant economic and human consequences for the urban corridor from Denver to Fort Collins. This paper examines one type of winter storm that ... -
An Early Morning Dry Microburst in the Great Basin
(American Meteorological Society, 1987)No abstract available -
An Evaluation of Quantitative and Probability-of-Precipitation Forecasts during the 1984–85 Warm and Cold Seasons
(American Meteorological Society, 1987)Objective precipitation guidance has been evaluated for specific regions within the continental United States during the period 1984?85. Cold-season precipitation probability skills for seven locations range from 52% at ... -
The Relationship of Lightning to Surface Convergence at Kennedy Space Center: A Preliminary Study
(American Meteorological Society, 1987)Cloud-to-ground lightning is a significant meteorological problem at the Kennedy Space Center (KSC). Of particular importance is the growth of lightning-bearing clouds in the vicinity of KSC, for which warnings must be ... -
A Statistical Evaluation of Lid Strength on Deep Convection
(American Meteorological Society, 1987)A statistical analysis of the effects of lower-tropospheric inversions (called lids) on deep convection was made using a ?logistic? model and reports of deep convection for a six month period over the central two-thirds ... -
Aircraft Icing Environment in Low Ceiling Conditions near Washington, D.C.
(American Meteorological Society, 1987)Radiosonde temperature and humidity data were used to deduce the vertical distribution of clouds and aircraft icing conditions near Washington, D.C. when low ceilings occurred with surface temperatures near freezing. ... -
A Synoptic Overview of a Heavy Rain Event in Southern China
(American Meteorological Society, 1987)The meteorological events surrounding the heavy rains of 23?25 June 1983 in the Yangtze River Valley of China are investigated. The rains developed along a persistent quasi-stationary frontal boundary that separated warm, ... -
A Study of 500 mb Vorticity Maxima Crossing the East Coast of North America and Associated Surface Cyclogenesis
(American Meteorological Society, 1987)For assessment of the sufficiency of the approach of an upper-level vorticity maximum as a predictor of explosive surface cyclogenesis in the western Atlantic, a study was made of all 500-mb maxima which crossed the east ... -
The Use and Interpretation of Numerical Weather Prediction Model Output in Identifying Synoptic-Scale Environments Associated with Development of Mesoscale Convective Systems
(American Meteorological Society, 1987)An experiment is reported in which derived diagnostic parameters computed from Limited-area Fine-Mesh (LFM) model gridpoint data were examined to determine subjectively whether their availability in real time would assist ... -
Derechos: Widespread Convectively Induced Windstorms
(American Meteorological Society, 1987)The derecho, a widespread convectively induced windstorm, is identified and defined in terms of current nomenclature. A comprehensive dataset consisting of 70 derecho cases has been developed from the warm season months ...