Springfield, Illinois Tornado photos from the chase, narration by Dr. Bruce Lee ...
Spring peepers (file info)
A photochrom of St Isaac's Square in St Petersburg, Russia from the 1890s, as seen from the dome of St Isaac's Cathedral towards Marie Palace.
Spring
The three transition months September, October and November (for the southern hemisphere).
Squall ...
Spring & Summer
Apparent Temperature - See Heat Index.
Coastal Flooding - Prolonged strong onshore flow of wind and/or high astronomical tides causing a rise in sea level that floods coastal areas.
spring - The season of the year composing the transition period from winter to summer; the vernal season, during which the sun is approaching the summer solstice.
SPRING The season of the year which occurs as the sun approaches the summer solstice, and characterized by increasing temperatures in the mid-latitudes.
SPRING TIDE: Semi-monthly tide of increased height due to the new or full moon.
SQUALL LINE: A non-frontal band, or line, of thunderstorms.
STATIONARY FRONT: A transition zone between airmasses, with neither advancing upon the other.
Spring An issue of water from the earth; a natural fountain; a source of a reservoir of water.
Spring Tide A tide higher than normal which occurs around the time of the new and full moon.
Spring freeze date The date of occurrence in the spring of the last minimum at or below a temperature threshold.
Squall line Any nonfrontal line or band of active thunderstorms.
Spring tide
The tide when ranges between high and low water are greatest. It occurs near full and new moons.
Squall ...
Spring - The season between winter and summer. Spring officially begins in late March and lasts until late June.
Sprinkle - A very light shower of rain just barely wetting the ground.
Spring Meteorology Class. Northampton Community College, Bethlehem, Pa. USA
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the annual spring rise of streams in cold climates as a result of snow melt; freshet also refers to a flood caused by rain or melting snow.
Friction ...
OU football spring game: Good news for the offensive line
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Country music industry honors stars at show ...
ISO-ELASTIC SPRING: A spring which is designed to achieve a fixed spring constant over a wide temperature range. Usually, this involves the use of an alloy with high nickel content such as Ni-Span C.
Related term: spring tide
NEGATIVE VORTICITY ADVECTION
The advection of lower values of vorticity into an area.
Typical of late spring, early growing season. Lower litter and duff layers are drying and beginning to contribute to fire intensity.
400 - 600 ...
In Canada, a killing frost is described as a frost severe enough to destroy annual plants and new growth on trees (in the spring) or to end the growing season (in the fall).KnotA measure of speed. It is one nautical mile per hour (1.
For example, in the Northern Hemisphere, winter is said to begin on the winter solstice and end on the vernal equinox when spring begins, covering the months of December, January, and February.
Spring TideA tide higher than normal which occurs around the time of the new and full moon.
When these products break down they destroy stratospheric ozone, creating the Antarctic Ozone Hole in the Southern Hemisphere spring (Northern Hemisphere autumn).
Weighing-Type Precipitation GageA rain gage that weighs the rain or snow which falls into a bucket set on a platform of a spring or lever balance. The increasing weight of its contents plus the bucket are recorded on a chart.
Speeds are of the order 80-130 knots (40-65 m/s), but may be as high as 180 knots (90 m/s), and downstream of main continental land masses in late winter/early spring, in excess of 200 knots (100 m/s).
Currently, the most common measure of this period, “the average length of growing season,' is defined as the number of days between the average dates of the last killing frost (see frost) in spring and the first killing frost of autumn.
antarctic ozone hole"A phenomenon discovered in the mid-1980s that occurs in the winter-spring lower stratosphere over Antarctica.
- PALMER DIVIDE -- The ridge of land that extends from the Front Range of the Rockies in central Colorado, eastward toward the city of Limon It sits right in between the cities of Denver and Colorado Springs.
Back Door Cold FrontA cold front moving south or southwest along the Atlantic seaboard and Great Lakes; these are especially common during the spring months.
It typically lies north-south across the central and southern high Plains states during the spring and early summer, where it separates moist air from the Gulf of Mexico (to the east) and dry desert air from the southwestern states (to the west).
The force on a spring-loaded vane, or the pressure in a Pitot tube can also be used. Pressure sensors allow the design of a variety of anemometers whose data is easily telemetered.
The four astronomical seasons: Spring, Summer, Autumn or Fall, and Winter are generally defined by the position of the sun with respect to the Earth's equatorial plane.
Cold Air Funnels Cold air funnels are not uncommon in Minnesota, especially in the spring. They are always quite small in scale, short-lived, and hardly ever touch the ground.
It is constructed on the following principles: an aneroid capsule (Vidie capsule, which is a thin, disk-shaped box or capsule, usually metallic) is partially evacuated of gas, and is restrained from collapsing by an external or internal spring.
It is strongest during a Northern Hemisphere winter and early spring, centered over Iceland and southern Greenland, and is the dominate weather feature in the area.
A seasonal volume forecast, generally for a period centered around the time of spring snowmelt (e.g., April-July). The outlooks are in units of acre-feet and represent the expected volume of water to pass by a given point during a snowmelt season.
Usually considered the time period between the last killing frost in the spring and the first killing frost of the autumn. The frost-free growing season is between the first and last occurrence of 32°F temperatures in spring and autumn.
Equinoxes The first days of spring and autumn when day and night are of equal length at all latitudes (except the poles) and the noon sun is directly over the equator.
An external or internal spring prevents the capsule from collapsing. Changes in the size of this aneroid capsule are proportional to the difference between external and internal pressures, which in turn, ...
For example, in the Northern Hemisphere, from the vernal equinox to the summer solstice is Spring (March 21 to June21). From that solstice to the autumnal equinox is Summer (June21-September 22).
Equinox - the exact time the sun is directly above the equator. This happens twice per year, to start both spring and fall.
Freezing rain - rain that freezes after it hits the ground or other object and forms clear ice.
Ozone Hole- A thinning of the ozone layer over Antarctica, which occurs each spring.
Polar Air- A mass of very cold, very dry air that forms in polar regions.
Equinox - The point in time when the vertical rays of the Sun are striking the equator. In the Northern Hemisphere, March 20 or 21 is the vernal or spring equinox and September 22 or 23 is the aiitunnal equinox.
It is most active during the late fall to late spring. During the summer, it is weaker, retreating towards the North Pole and becoming almost nonexistent. During this time, the North Pacific High pressure system dominates.
In winter, it often rapidly develops and causes problems for a large portion of the eastern United States. In Spring, it helps with severe weather development in the Plains. Commonly develops from the LEE TROUGH east of the Rocky Mountains.
Equinox: the time when the sun crosses the earth's equator, making night and day of approximately equal length all over the earth and occurring about March 21 (the spring or vernal equinox) and September 22 (autumnal equinox).
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Vernal Equinox - the equinox when the sun approaches the Northern Hemisphere; typically called the first day of spring ...
Ozone Hole: A depletion of stratospheric ozone that occurs over the Antarctic continent each spring.
UPWELLING: The rising of cold water from the deeper areas of the ocean to the surface. This phenomena often occurs along the California coast during the spring and summer.
National Meteorological Center, Camp Springs, Maryland;
National Severe torms Forecast Center, Kansas City, Missouri; ...
(abbreviation LLJ) A region of relatively strong winds in the lower part of the atmosphere. Specifically, it often refers to a southerly wind maximum in the boundary layer, common over the Plains states (US) at night during the warm season (spring ...
groundwater The supply of fresh water found beneath the surface of the Earth (usually in aquifers) that often supplies wells and springs.
 See also: Weather, Water, Temperature, Air, Surface
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