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

For a list of Upper Air Locations, click here.


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 - 05/27/2019
TIME (EDT)2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM
SHOWALTER INDEX 7.027.287.877.57.717.488.029.2710.0610.8511.311.16
LIFTED INDEX 11.7311.7512.2912.1112.9112.7613.1714.615.4115.8315.4914.74
SWEAT INDEX 66.8566.5469.1973.6973.9464.9956.8659.8965.1168.8768.5472.82
K INDEX 24.4523.7623.0723.6222.0123.6222.0719.1415.8516.0616.5719.1
TOTALS TOTAL INDEX 41.140.940.0140.6740.240.8940.0237.8536.5335.0134.2534.35
LCL HEIGHT (Ft) 217623942813298926092308207619652414307735603500
LCL PRESSURE (mb) 909.78902.41888.52882.66895.42906.07914.39917.79901.45879.14863.52864.92
LCL TEMP (in C) 1.851.020.09-0.81-0.380.41.362.462.231.250.681.82
PRECIP WATER (in) 0.730.740.730.760.770.810.820.820.80.810.830.86
CAPE (J/Kg) 0.000.000.000.000.000.000.000.000.000.000.000.00
NCAPE (J/Kg) 000000000000
CINS (J/Kg) 0.000.000.000.000.000.000.000.000.000.000.000.00
LID STRENGTH (C) 12.412.713.812.91415.516.817.418.218.320.321.3
EQ LEVEL (Ft) ------------------------------------
LFC (Ft) ------------------------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 62.1-43.25-33.28-18.16-20.81-23.98-15.9-27.23-20.08-12.33-12.29-4.95
SRH ( 0 - 3Km) (m/s) 12.736.750.973.186.175.992.4116.2148.8190.6185.4190.6
STORM MOTION 297 at 28298 at 26299 at 25297 at 27296 at 26293 at 25292 at 24293 at 24290 at 21289 at 21295 at 18295 at 17
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 146633471112121111
3 KM SHEAR (Kts) 242119192325273634302421
6 KM SHEAR (Kts) 535456575756545553535049
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 625562495253624962526258626462586246624362496243
CRAVEN SIG SEVERE 000000000000
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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