SOUNDING STATION :

SKEW-T DIAGRAM

Brookhaven, NY   |   Albany, NY   |   Boston, MA

DESCRIPTION OF PARAMETERS

TP: Tropopause level (mb)    |    MW: Max wind level (mb)    |    FRZ: Lowest freezing level (mb) or BG for below ground    |    WB0: Wet bulb zero (mb) or BG    |    PW: Precipitable water (in)    |    RH: Mean RH surface to 500 mb (%)    |    MAXT: Estimated max temperature (C) using a 150mb layer    |    TH: 1000-500mb thickness (m)    |    L57: 700-500mb lapse rate (C/km)    |    LCL: Lift condensation level (mb) from surface data    |    LI: Lifted index (C) using 100 mean layer above surface    |    SI: Showalter index (C)    |    TT: Total totals index    |    KI: K index    |    SW: Sweat index    |    EI: Energy index

PARCEL
This is a parcel trajectory (the yellow line on the sounding) based on 100 mb mean layer.

CAPE: Convective available potential energy    |    CINH: Convective inhibition (open ended)    |    LCL: Lift condensation level (mb)    |    CAP: Cap strength (C)    |    LFC: Level free convection (mb)    |    EL: Equilibrium level (mb)    |    MPL: Maximum parcel level (mb)    |   

WIND
Wind parameters

STM: Estimated storm motion (knts) from 0-6000m AG mean layer, spd 75% of mean, dir 30 deg veer from mean. HEL: Storm relative helicity 0-3000m AG (total value)    |    SHR+: Positive shear magnitude 0-3000m AG (sum of veering shear values)    |    SRDS: Storm relative directional shear 0-3000m AG (directional difference of storm relative winds)    |    EHI: Energy helicity index (prop to positive helicity * CAPE)    |    BRN: Bulk Richardson number 500-6000m AG (prop to CAPE/bulk shear)    |    BSHR: Bulk shear value (magnitude of shear over layer)    |   

PHP Script Developed By Jim Wyman SOUTHERN MARYLAND WEATHER

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