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 KABR - 09/17/2024
TIME (EDT)1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM
SHOWALTER INDEX -2.11-2.38-2.41-3.19-4.1-4.82-4.58-3.45-0.780-0.63-0.99
LIFTED INDEX -3.31-3.75-3.03-2.45-2.86-3.22-2.98-2.39-1.99-1.55-1.82-2.59
SWEAT INDEX 385.39395.5391.54406401.73375.84310.89343.09228.76242.68282.89197.32
K INDEX 28.9430.0531.2930.5929.1230.1632.3430.8728.4527.9529.0728.82
TOTALS TOTAL INDEX 51.235252.1952.2753.3854.8654.5652.9650.249.1750.0149.96
LCL HEIGHT (Ft) 204220372119207019521788163114111383189726293320
LCL PRESSURE (mb) 895.04894.91891.97893.31897.13902.69908.53913.96915.6898.57874.28850.75
LCL TEMP (in C) 1716.7216.1715.8315.815.9116.216.5616.6416.3615.8415.29
PRECIP WATER (in) 1.331.361.361.381.361.341.371.341.321.231.211.26
CAPE (J/Kg) 988.00937.76713.27604.46552.13506.90497.69500.15487.01522.84592.99783.63
NCAPE (J/Kg) 0.140.140.110.10.090.090.080.080.080.090.10.12
CINS (J/Kg) -272.37-274.60-312.97-350.73-408.88-453.75-452.18-452.33-445.00-469.22-457.57-364.89
LID STRENGTH (C) 64.17.45.42.21.72.26.99.89.58.23.8
EQ LEVEL (Ft) 344213408633387326443260032512326113258432736327443306834260
LFC (Ft) 120311218312588130221337513500133321312412931129391301412532
BULK RICHARDSON 41.6934.5823.3721.5518.8917.38---15.04---24.5248.5372.17
BRN SHEAR (m/s) 23.727.130.52829.229.2---33.3---21.312.210.9
SRH ( 0 - 1Km) (m/s) 3.42-2.09-15.53-11.56-10.67-6.74-7.319.4533.9748.7622.95-4.72
SRH ( 0 - 3Km) (m/s) 219.9254.3262.9245.5242.6229.2215.7210.2212.8130.148.423.2
STORM MOTION 166 at 11165 at 10154 at 10152 at 8148 at 8152 at 8147 at 9151 at 6160 at 4189 at 4171 at 5148 at 8
ENERGY HELICITY(EHI) 1.361.491.170.930.840.730.670.660.650.430.180.11
1 KM SHEAR (Kts) 323433333230272524211510
3 KM SHEAR (Kts) 119647111414151387
6 KM SHEAR (Kts) 181817191916131416201919
UP VERT VELOCITY (m/s) 434237343231313130313338
WBZ (Ft) 949594929489948694839483949294659474947194749468
CRAVEN SIG SEVERE 9.168.696.245.915.44.183.333.64.015.385.87.66
SUPERCELL COMPOSITE (SCP) 2.73.12.61.81.71.41.200000.2
SIG TORNADO (STP) 00-0.1000000000

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