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 - 10/05/2023
TIME (EDT)8 PM9 PM10 PM11 PM12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM
SHOWALTER INDEX 3.120.530.44-0.84-1.17-1.46-1.442.293.220.412.867.7
LIFTED INDEX 2.690.39-0.55-0.82-1.98-2.44-1.67-0.371.54-0.351.714.44
SWEAT INDEX 159.96260.92267.77277.34280.58281.1277.84141.02109.22244.26157.12146.79
K INDEX 23.0131.2331.9134.1830.4123.9824.8420.1118.3522.8920.811.32
TOTALS TOTAL INDEX 48.0752.6752.8554.2255.556.6556.8150.5449.1154.450.4240.58
LCL HEIGHT (Ft) 54494579267110221004964139617221562131916371755
LCL PRESSURE (mb) 782.06810.96874.48929.93930.15930.96916.66907.2912.72921.14912.02908.7
LCL TEMP (in C) 1.643.187.9511.311.4511.47108.768.648.467.546.41
PRECIP WATER (in) 0.640.80.880.980.780.710.640.610.520.610.550.41
CAPE (J/Kg) 21.98110.83168.94190.83317.00321.46216.91148.405.77110.5440.4922.80
NCAPE (J/Kg) 0.010.040.040.040.060.060.050.0400.030.020.02
CINS (J/Kg) -29.13-37.31-52.23-28.33-61.64-75.37-111.22-130.01-157.84-43.99-53.30-82.83
LID STRENGTH (C) 3.52.311.43.67.96.28.910.52.74.48.7
EQ LEVEL (Ft) 138481755020522227572310023065225512170217683187501463012965
LFC (Ft) 89397449555657936310637195681040311968770964498275
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 61.7383.7362.5388.06151.71147.8316.44-57.06-721.17-48.82-29.91
SRH ( 0 - 3Km) (m/s) 91.1108.877.827.8100.2185.6115.9-59-57.5-23.7-156-120.8
STORM MOTION 303 at 24292 at 26288 at 28294 at 31308 at 32312 at 31300 at 42294 at 47292 at 48295 at 47295 at 52298 at 55
ENERGY HELICITY(EHI) 0.010.080.080.030.20.370.16-0.050-0.02-0.04-0.02
1 KM SHEAR (Kts) 111913212626242325252431
3 KM SHEAR (Kts) 232427343233313230353337
6 KM SHEAR (Kts) 364132223442383947565358
UP VERT VELOCITY (m/s) 61418192425201731497
WBZ (Ft) 512151215121610560966090512451304242424842573447
CRAVEN SIG SEVERE 0.412.342.782.165.556.954.242.980.143.191.10.68
SUPERCELL COMPOSITE (SCP) 0000.10.61.10.300000
SIG TORNADO (STP) 0000.20.50.5000000

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