forecasting visibility. asos visibility sensor uses xenon flash light source and then measures how...

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Forecasting Visibility

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Page 1: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Forecasting Visibility

Page 2: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

ASOS Visibility Sensor

• Uses Xenon flash light source and then measures how much light is scatttered into sensor

Page 3: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Mie Scattering

Rayleigh Scattering

Page 4: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Offshore Flow and Enhanced Visibility

Page 5: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 6: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 7: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 8: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Radiation Fog

Page 9: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 10: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 11: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 12: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 13: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Radiation Fog From Above

Page 14: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 15: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 16: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Advection Fog

Page 17: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 18: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 19: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Upslope Fog

Page 20: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

Upslope Fog: Snoqualmie Pass

Page 21: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 22: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor
Page 23: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

• 000 FXUS62 KGSP 131857 AFDGSP AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 253 PM EDT THU APR 13 2006 .SHORT TERM /TONIGHT THROUGH SATURDAY/... NORTHWESTERLY FLOW ALOFT WILL REMAIN OVER THE AREA THRU FRIDAY. …. THERE IS THE POSSIBILITY THAT KAND/KCLT COULD HAVE A BRIEF PERIOD OF MVFR FOG AROUND SUNRISE FRI GIVEN THE FORECAST HYDROLAPSE. HOWEVER CROSSOVER TEMPS ARE WELL BELOW FORECAST LOW TEMPS...THEREFORE WILL LEAVE OUT FOR NOW. CANNOT RULE OUT SOME VFR CEILINGS FROM TIME TO TIME...BUT CHANCE NOT HIGH ENOUGH TO INCLUDE AT THIS TIME. && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && $$ SHORT TERM...RWH/CSH LONG TERM...CSH AVIATION...RWH

Page 24: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor

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Page 25: Forecasting Visibility. ASOS Visibility Sensor Uses Xenon flash light source and then measures how much light is scatttered into sensor