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NOTE!  Normal observations are at 0Z or 12Z.
SOUNDING STATION :       RAP STATION :    

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SKEW-T DIAGRAM
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)

LATEST RAP RUN
RAP (RAPID REFRESH) RUN Ver 1.4 - LATEST MODEL RUN FOR KSAW - 09/22/2017
TIME (EDT)12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 PM10 PM11 PM
SHOWALTER INDEX -6.2-4.12-6.24-5.99-5.59-4.6-3.27-2.28-0.770.641.131.78
LIFTED INDEX -5.74-4.76-6.49-6.33-6.11-5.55-5.38-4.99-4.42-4.08-3.99-3.2
SWEAT INDEX 480.86470.78526.51469.21457.31402.96348.82323.45266.02234.64228.92215.03
K INDEX 32.1721.7126.0135.5732.2132.632.4429.7727.5426.4925.5524.51
TOTALS TOTAL INDEX 5653.4255.9154.1853.752.7551.8851.3749.6147.6346.6745.7
LCL HEIGHT (Ft) 238327883090291422611814253625942132185416151379
LCL PRESSURE (mb) 893.88878.17869.01877.28898.24913.33889.67886.45901.83911.49919.36926.95
LCL TEMP (in C) 18.5618.7318.8419.2419.4319.7319.4519.6520.0220.0920.1320.35
PRECIP WATER (in) 1.421.191.411.771.721.731.651.521.411.351.321.26
CAPE (J/Kg) 1464.121595.572058.332429.482030.171852.842273.562265.682098.541938.661996.981929.67
NCAPE (J/Kg) 0.190.210.230.260.230.220.260.260.250.230.240.23
CINS (J/Kg) -282.78-328.45-205.66-45.15-110.06-128.08-118.89-166.36-215.65-246.32-247.49-279.64
LID STRENGTH (C) 0.72.900.400.45.612.615.315.11418.9
EQ LEVEL (Ft) 363393637839153395213880237317374423732137194368983672036509
LFC (Ft) 105101132010367853994349601899292299462940193189439
BULK RICHARDSON 88.8851.27108.76123.2127.5116.2831.8739.6541.3352.7277.3593.64
BRN SHEAR (m/s) 16.531.118.919.773.8113.871.357.150.836.825.820.6
SRH ( 0 - 1Km) (m/s) 50.3451.1255.1789.0565.9977.488.46114.66104.6687.6858.6714.22
SRH ( 0 - 3Km) (m/s) 136.5262.8278118.581.3106.3138.8222.5270.2276.8262.7220.7
STORM MOTION 254 at 13237 at 12236 at 15254 at 32264 at 34267 at 33273 at 30276 at 24276 at 18272 at 14257 at 10219 at 8
ENERGY HELICITY(EHI) 1.252.623.581.81.031.231.973.153.543.353.282.66
1 KM SHEAR (Kts) 182024191515161922242830
3 KM SHEAR (Kts) 262324313945393632282317
6 KM SHEAR (Kts) 182215203534252325252322
UP VERT VELOCITY (m/s) 535562686259656563606160
WBZ (Ft) 853597659777981397989801980797869783978397809777
CRAVEN SIG SEVERE 13.5718.0715.8925.0136.5832.4329.2626.8327.0124.9523.6521.85
SUPERCELL COMPOSITE (SCP) 05.86.802.23.1000000
SIG TORNADO (STP) 00.40.500.81.1000000

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