National Weather Service - Reno, NV
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Reno, Nevada
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Weather Definition
Predominant Weather (Wx)
Is the expected weather (precipitating or non-precipitating) valid at the indicated hour.  The weather element includes type, probability, and intensity information.






Weather Type Codes
Meaning
<NoWx> No weather expected. No rain, snow, fog, etc.
<Iso T>,
<Iso –TRW>
Isolated thunderstorms expected, covering about 10-25% of the area. Implies thunderstorms will occur.
<Sct T>,
<Sct –TRW>

Scattered thunderstorms expected, covering 25-50% of the area. Implies thunderstorms will occur.

<Num T>,
<Num –TRW>
Numerous thunderstorms expected, covering 50-75% of the area. Implies thunderstorms will occur.
<Iso –RW> Isolated showers, covering 10-25% of the area. Implies showers will occur.
<Sct –RW> Scattered showers, covering 25-50% of the area. Implies showers will occur.
<Num –RW> Numerous showers, covering 50-75% of the area. Implies showers will occur.
<Wide –RW> Widespread showers, covering greater than 75% of the area. Implies showers will occur.
<Schc T>,
<Schc –TRW>
A slight chance of thunderstorms, 10-25% chance of thunderstorms occurring. Implies uncertainty on whether or not thunderstorms will occur.
<Chc T>,
<Chc –TRW>
A chance of thunderstorms, 25-50% chance of thunderstorms occurring. Implies uncertainty on whether or not thunderstorms will occur.
<Lkly T>,
<Lkly –TRW>
Thunderstorms are likely, 50-75% chance of thunderstorms occurring. Implies uncertainty on whether or not thunderstorms will occur.
<Schc –RW> A slight chance of showers, 10-25% chance of showers occurring. Implies uncertainty.
<Chc –RW> A chance of showers, 25-50% chance of showers occurring. Implies uncertainty.
<Lkly –RW> Showers are likely, 50-75% chance of showers occurring. Implies uncertainty.
<Iso –SW> Isolated snow showers, covering 10-25% of the area. Implies showers will occur.
<Sct –SW> Scattered snow showers, covering 25-50% of the area. Implies showers will occur.
<Num –SW> Numerous snow showers, covering 50-75% of the area. Implies showers will occur.
<Wide –SW> Widespread snow showers, covering greater than 75% of the area.
<Schc –SW> A slight chance of snow showers, 10-25% chance of showers occurring. Implies uncertainty.
<Chc –SW> A chance of snow showers, 25-50% chance of showers occurring. Implies uncertainty.
<Lkly –SW> Snow showers are likely, 50-75% chance of showers occurring. Implies uncertainty.
<Schc –R, R>,
<Schc –S, S>
A slight chance of rain (snow), 10-25% chance of rain (snow) occurring.
<Chc –R, R>,
<Chc –S, S>
A chance of rain (snow), 25-50% chance of rain (snow) occurring.
<Lkly –R, R>,
<Lkly –S, S>
Rain (snow) is likely, 50-75% chance of rain (snow) occurring.
<Def –R, R>,
<Def –S, S>
Rain or snow, greater than 75% chance of occurring.
<Areas BD> Areas of blowing dust.
<Patchy F> Localized areas of fog.
<Areas F> Areas of fog, more widespread than patchy.
<Areas ZF> Areas of freezing fog.
<Areas K> Areas of smoke.
 


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National Oceanic and Atmospheric Administration
National Weather Service
Reno Weather Forecast Office
2350 Raggio Pkwy
Reno, NV 89512-3900

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