Forecasting Visibility

Forecasting Visibility

Forecasting Visibility ASOS Visibility Sensor

Uses Xenon flash light source and then measures

how much light is scatttered into sensor

Rayleigh Scattering

Mie Scattering

Offshore Flow and Enhanced Visibility

Radiation

Fog

Radiation Fog From Above 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

Advection Fog

Upslope Fog

Upslope Fog: Snoqualmie Pass

Duststorms: An increasing forecasting problem

April 21, 1931: The Biggest Duststorm in NW History

Why increasing?

Drier conditions in western U.S More disturbance of soilsmore grazing,

more off-road vehicles, more mountain biking, more exploration for oil and another

resources. More dust coming from Asia.

LA Smog

The END

Recently Viewed Presentations

  • Inside the Earth

    Inside the Earth

    The Core. The core is split into two parts inner and outer. The outer core is made of melted iron.It is totally liquid and the inner core floats in it. The inner core is a solid sphere.It is the center...
  • Postwar 1 - Mustang Public Schools

    Postwar 1 - Mustang Public Schools

    Dr. Jonas Salk-developed the polio vaccine. ... The most popular was I Love Lucy. Other popular shows included Dragnet, Milton Berle (Uncle Miltie), Leave It To Beaver, and westerns such as Gunsmoke. ... Sam Phillips set up a Memphis recording...
  • Lofting - San Diego State University

    Lofting - San Diego State University

    Loft is the anchor and form factor of the primary structure, i.e skins, frames bulkheads, spars, ribs, stringers, longerons, etc. Lofting uses a combination of: Conics, Splines, Spines, Swepted Blends Surfaces, Multi-Section Surfaces. Warning: Lofting is an art, and coordination...
  • My Employees Are Not Coming to Work! How

    My Employees Are Not Coming to Work! How

    Lawyerly Disclaimer. The materials contained in this presentation were prepared by the law firm of Jackson Lewis P.C. for the participants' reference in connection with education seminars presented by Jackson Lewis P.C. Attendees should consult with counsel before taking any...
  • Možnosti zevního ovlivnění imunitního systému

    Možnosti zevního ovlivnění imunitního systému

    nízká exprese nádorových antigenů sialylace nádorové bb. neposkytují kostimulační signály → anergie T lymfocytů některé protinádorové látky mají stimulační účinky produkce faktorů inaktivujících T lymfocyty exprese FasL → apoptóza T lymfocytů inhibice funkce či životnosti dendritických bb.
  • Presentation: Building Your SSI Prevention Bundle

    Presentation: Building Your SSI Prevention Bundle

    This slide shows data from the Michigan Surgical Quality Collaborative, which noticed only 80 percent of patients were receiving proper types of antibiotics. In emergency cases—where patients tend to be a high risk for complications like wound infections— only 50...
  • EPICS Version 4  Normative V4 Team  presented by

    EPICS Version 4 Normative V4 Team presented by

    typeIdentifier-----typeIdentifier is a long whose bitfield value is used to uniquely identify a PVStructureinstance as an example of a data type. The first 16 bits (of 64) are reserved toidentify the normative types.
  • ARK Møre og Romsdal 2019 - Fylkesmannen

    ARK Møre og Romsdal 2019 - Fylkesmannen

    MATRIGMA. Dette er en ikke-verbal evnetest, en såkalt matrisetest som gir et mål på personens generelle evne i forhold til andre personer, ved at kandidaten stilles overfor et antall problemløsningsoppgaver bestående av geometriske figurer. Testen måler flytende intelligens, evne til...