Hail damage

Hail guards of stiff hardware cloth mounted in a removable frame are used to prevent hail damage to the relatively soft fins in hail-susceptible areas. If damaged just slighdy the performance is not impaired. 

Supercell storm Long-lived thunderstorm with an intense (vertical windspeeds of 30-50 m sec ), rotating updraft. Most prolific producer of large hail, damaging winds, and tornadoes. 

Injury to plants and vegetation is caused by a variety of factors, of which air pollution is only one. Drought, too much water, heat and cold, hail, insects, animals, disease, and poor soil conditions are some of the other causes of plant injury and possible plant damage (3). Estimates suggest that less than 5% of total crop losses are related to air pollution. Air pollution has a much greater impact on some geographic areas and crops than others. Crop failure can be caused by fumigation from a local air pollution source or by more widespread and more frequent exposure to adverse levels of pollution. 

Ice and hail, snow, etc. can cause a loss of off-site power. The reactor building was designed to withstand blast pressure of 1,000 Ibs/ft can withstand tornado missile impact (Sharp, 1986). A tornado could damage the reactor by hitting the river water pump houses similar to the flooding scenario. 

As tree fruit species are perennial crops, year-to-year influences are often detected. For example, factors in the previous year(s) (e.g. water or nutrient deficiency, hail storm damage, shoot deformation caused by aphids, too high or too low crop load) strongly influence the tree s performance in the next year (Tromp and Wertheim, 2005). Thus, a major objective of agronomic practices used is to buffer the orchard from stress and to keep trees in a balance/equilibrium between vegetative and generative activity. 

These four unfortunate guys may be interested in yet another acetylene connection — one that involves the idea of getting stoned. French researchers have found a way to reduce crop damage caused by hail. They have developed a gun equipped with a combustion chamber in which acetylene mixes with air to create an explosion the gun s hornlike barrel is aimed upward to send a shock wave into the clouds. A series of such shock waves breaks up the hail stones, ensuring that the crops below — and people — don t get stoned. 

Tube bundles exposed to rain, hail, and sun damage... 

Hail is a form of precipitation which can cause catastrophic damage in some regions - although usually only in a very limited area. In such locations quality fruit production is extremely risky without suitable measures to protect against hail. 

Leaves with white streaks or blotches. Causes Precipitation damage thrips. Excessive rain or hail can spot onion leaves. Spots are various sizes, and damage doesn t spread. Maintain good air circulation and make sure soil is well-drained to minimize problems. 

The introduction of the drug penicillin in 1941 was hailed as the dawn of a new era in medicine - an era in which infectious disease could be eradicated for all time. This early optimism proved ingenuous. Sixty years later, infectious diseases are on the rise, particularly in immunocompromised individuals [56]. The Centers for Disease Control has reported that as many as 58% of reported AIDS patients have contracted potentially fatal mycoses [56]. The CDC also reported that the U.S. death rate from infectious diseases increased 60% from 1980 to 1992 [57]. Heart disease and cancer are still the leading causes of death in the Western world. While the primary tissue damage associated with these diseases may be the... 

Reduced crop damage because of wind, hail, birds, and insects. 

With these caveats in mind, we present the temporal and spatial distributions of (reported) severe thunderstorm events in the contiguous United States (surmnarized in Table I). One expects a tornado-producing supercell storm also to have damaging hail and winds. However, only 4% of the tornadoes from 1955 through 1983 were accompanied by damaging wind reports, and another... 

FIGURE 1 Average monthly severe thunderstorm events reported in the contiguous United States during a recent 29-year period. Damaging wind events include assumed 100% occurrences coincident with hail and tornadoes. Likewise, hail events include assumed 100% occurrences coincident with tornadoes. [Data courtesy of J. T. Schaefer, Storm Prediction Center and from Kelly, D. L., Schaefer, J. T., and Doswell, C. A., Ill (1985). Monthly Weather Rev. 113,1997-2014.]... 

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