| 21. | A WSR-88D Doppler Weather Radar was commissioned in March 1994.
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| 22. | A number of ground based Weather radar systems can detect areas of severe turbulence.
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| 23. | Efforts to develop forward-looking and side-looking weather radars were unsuccessful.
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| 24. | The new system, called terminal Doppler weather radar, emits electromagnetic energy like all radars.
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| 25. | A " tornado warning " means a tornado has been sighted by weather radar.
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| 26. | In some cases, the hatch shows up on weather radar.
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| 27. | Tropical cyclones far from land are tracked by weather satellites capturing Doppler weather radar.
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| 28. | Landspouts form during the growth stage of convective clouds by stretching Doppler weather radar.
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| 29. | Weather radar measures the density and height of the clouds.
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| 30. | Doppler weather radar was used from Charleston, South Carolina.
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