Weather Radar Cloverdale Indiana (2024)

FAQs

What rain doesn t show up on radar? ›

Rain Intensity and Droplet Size: Light rainfall or drizzle consists of tiny water droplets. These droplets might be too small for the radar to detect effectively. Since low-level moisture can lead to the formation of such fine droplets, the rain might be falling right under our noses but stay invisible to the radar.

Weather surveillance radars such as the WSR-88D can detect most precipitation within approximately 80 nautical miles (nm) of the radar, and intense rain or snow within approximately 140 nm. However, light rain, light snow, or drizzle from shallow cloud weather systems are not necessarily detected.

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The radar's computers will calculate the shift and determine whether the precipitation is moving toward or away from the radar, and how fast, then apply a corresponding color to those directions and speeds. Red is typically a target moving away from the radar, while green is applied to targets moving toward the radar.

Colors of doppler radar means : Red= Very Heavy Rain or Rain & Hail. Purple= Extremely heavy rain or hail.

Blue and green colors represent light-to-moderate rainfall. Yellow and orange colors show moderate-to-heavy precipitation, while red is very heavy rainfall and pink colors inside the red color represent hail of different sizes.

LiDAR has higher resolution and can provide more detailed and accurate measurements than radar.

On a weather radar map, a tornado is usually indicated by a smaller area of red surrounded by a larger area of green. However, modern radar systems can also indicate debris balls, a sign of a tornado on the ground.

The colors are typically a spectrum. The greens indicate light or moderate rainfall. Yellow, orange, and red indicate moderate to heavy rainfall and can also indicate hail. Whites or blues mean snowfall and pink indicates freezing rain, sleet, or a wintry mix.

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Black dots represent divergence centers. Arrow length is proportional to wind speed. Negative (positive) Doppler velocities represent flow toward (away from) the radar. (

Purple indicates “range folding”— where the radar cannot determine the radial velocity. Velocity image of a large-scale weather system. denotes the approx. location of the radar.

In addition, the radar image will not show echos from precipitation that lies outside the radar's beam, either because the precipitation is too high above the radar, or because it is so close to the Earth's surface that it lies beneath the radar's beam.

This is called "virga." As the water droplet falls through dry air and evaporates, it leaves streaks. Virga is also appropriately referred to as "fallstreaks" and "precipitation trails." As the precipitation falls through the dry column of air and evaporates, it cools the air around it.

Based on our observations, rain can cause false readings or interfere with the radar's ability to determine a vehicle's speed. Despite these challenges, radar devices are still used in rainy conditions, although officers may rely more on visual cues and other forms of speed measurement.

Well most radars have an invisible beam that circles around at different heights and angles in the sky. This tells us if things are falling out of the sky. At times, the beam coming out of the radar (depending on where the radar is) can miss low altitude clouds, fog, and depending on its location.