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 - 04/13/2021
TIME (EDT)10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 PM
SHOWALTER INDEX 18.4217.4517.6117.6417.6517.7717.6817.8918.1518.4517.3517.04
LIFTED INDEX 19.6918.9318.4518.2218.0518.2218.1418.1318.5918.7218.1418.44
SWEAT INDEX 94.2690.7578.3172.4569.5571.9175.9578.3181.7983.6383.9987.54
K INDEX 0.12.230.911.191.461.452.582.433.773.745.045.57
TOTALS TOTAL INDEX 27.8830.0329.1129.2329.429.3829.3628.8528.1327.6929.4629.99
LCL HEIGHT (Ft) 231621922733330536693392347633053230285427292608
LCL PRESSURE (mb) 894.3898.15880.01861.23849.91859.02855.83862.25866.04877.57882.63886.96
LCL TEMP (in C) -8.89-8.15-8.8-9.49-9.77-9.06-8.83-8.51-8.18-7.58-7.51-7.55
PRECIP WATER (in) 0.330.350.340.330.340.360.370.390.40.40.390.4
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) 23.322.322.322.222.52323.32322.62221.123.5
EQ LEVEL (Ft) ------------------------------------
LFC (Ft) ------------------------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 43.8348.07-2.44-19.23-21.52-21.03-14.39-21.7212.2742.8356.2955.12
SRH ( 0 - 3Km) (m/s) 11.736.93627.79.62.98.211.637.438.949.852.3
STORM MOTION 325 at 38323 at 35294 at 9265 at 16264 at 18264 at 15272 at 13273 at 16325 at 14342 at 27346 at 32348 at 31
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 1211108778910111112
3 KM SHEAR (Kts) 13865324812111010
6 KM SHEAR (Kts) 302510797111011122121
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 000000000000
CRAVEN SIG SEVERE 000000000000
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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