Weather radar for longview tx

Weather radar for longview tx DEFAULT

The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities.

The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination.

The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable.

The time of Civil Sunset minus the time of Civil Sunrise.

The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.

Sours: https://www.wunderground.com/weather/us/tx/longview

Powerhouse Storm Set for West; Severe Weather Threat the Next Several Days

This Afternoon

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind around 15 mph.

Tonight

A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 68. South wind around 5 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind around 5 mph.

Monday

Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph.

Monday Night

Mostly clear, with a low around 65.

Tuesday

Mostly sunny, with a high near 87.

Tuesday Night

A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66.

Wednesday

Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.

Wednesday Night

A 20 percent chance of showers before 1am. Partly cloudy, with a low around 55.

Thursday

A 20 percent chance of showers. Mostly sunny, with a high near 71.

Thursday Night

Mostly clear, with a low around 51.

Friday

Sunny, with a high near 69.

Sours: https://forecast.weather.gov/zipcity.php?inputstring=Longview,TX&Go2=Go
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Longview Doppler Radar Loop

Clear Air dBZ ScalePrecipitation dBZ Scale
Rainrate - inches per hour

The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan. "Reflectivity" is the amount of transmitted power returned to the radar receiver. Reflectivity (designated by the letter Z) covers a wide range of signals (from very weak to very strong). So, a more convenient number for calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used.

The dBZ values increase as the strength of the signal returned to the radar increases. Each reflectivity image you see includes one of two color scales. One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). The other scale (near left) represents dBZ values when the radar is in precipitation mode (dBZ values from 5 to 75). Notice the color on each scale remains the same in both operational modes, only the values change. The value of the dBZ depends upon the mode the radar is in at the time the image was created.

The scale of dBZ values is also related to the intensity of rainfall. Typically, light rain is occurring when the dBZ value reaches 20. The higher the dBZ, the stronger the rainrate. Depending on the type of weather occurring and the area of the U.S., forecasters use a set of rainrates which are associated to the dBZ values.

These values are estimates of the rainfall per hour, updated each volume scan, with rainfall accumulated over time. Hail is a good reflector of energy and will return very high dBZ values. Since hail can cause the rainfall estimates to be higher than what is actually occurring, steps are taken to prevent these high dBZ values from being converted to rainfall.

Sours: https://www.weatherwx.com/radar_loop/tx/longview.html
VERIFY: Did a viral post capture tornado in Longview

Longview Doppler Radar

Clear Air dBZ ScalePrecipitation dBZ Scale
Rainrate - inches per hour

The colors are the different echo intensities (reflectivity) measured in dBZ (decibels of Z) during each elevation scan. "Reflectivity" is the amount of transmitted power returned to the radar receiver. Reflectivity (designated by the letter Z) covers a wide range of signals (from very weak to very strong). So, a more convenient number for calculations and comparison, a decibel (or logarithmic) scale (dBZ), is used.

The dBZ values increase as the strength of the signal returned to the radar increases. Each reflectivity image you see includes one of two color scales. One scale (far left) represents dBZ values when the radar is in clear air mode (dBZ values from -28 to +28). The other scale (near left) represents dBZ values when the radar is in precipitation mode (dBZ values from 5 to 75). Notice the color on each scale remains the same in both operational modes, only the values change. The value of the dBZ depends upon the mode the radar is in at the time the image was created.

The scale of dBZ values is also related to the intensity of rainfall. Typically, light rain is occurring when the dBZ value reaches 20. The higher the dBZ, the stronger the rainrate. Depending on the type of weather occurring and the area of the U.S., forecasters use a set of rainrates which are associated to the dBZ values.

These values are estimates of the rainfall per hour, updated each volume scan, with rainfall accumulated over time. Hail is a good reflector of energy and will return very high dBZ values. Since hail can cause the rainfall estimates to be higher than what is actually occurring, steps are taken to prevent these high dBZ values from being converted to rainfall.

Sours: https://www.weatherwx.com/radar/tx/longview.html

Longview tx radar for weather

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