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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 - 11/19/2017
TIME (EST)9 PM10 PM11 PM12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM
SHOWALTER INDEX 16.6116.5516.7216.8617.3717.1917.1616.2114.9814.9215.6816.44
LIFTED INDEX 16.2416.0716.3416.7217.0717.1817.0316.1414.9514.5615.4116.27
SWEAT INDEX 104.18103.59102.98102.5698.9496.1298.2100.6899.4294.0498.1399.47
K INDEX -2.18-4.5-7.11-7.67-7.68-7.71-10.33-10.06-8.01-7.74-8.27-8.9
TOTALS TOTAL INDEX 31.3331.9231.6631.4630.5331.131.3333.2535.7336.0634.6433.12
LCL HEIGHT (Ft) 1318972897838906959103010851130121413551361
LCL PRESSURE (mb) 920.78933.21935.99937.67936.19935.03932.48931.53930.64928.14924.13924.02
LCL TEMP (in C) -4.86-4.1-4.19-4.52-5-5.64-6.43-7.07-7.69-8.41-9.18-9.5
PRECIP WATER (in) 0.250.240.230.230.230.230.220.210.190.190.190.19
CAPE (J/Kg) 2.2411.4213.0910.1211.185.123.722.100.115.705.322.74
NCAPE (J/Kg) 0.010.010.010.010.010.010.01000.010.010
CINS (J/Kg) -0.84-0.73-0.74-0.73-0.72-0.74-0.75-0.75-0.76-0.76-0.77-0.86
LID STRENGTH (C) 18.818.71919.720.220.721.419.818.218.219.120.1
EQ LEVEL (Ft) 478755505799589359305538541353364638539253905338
LFC (Ft) 347629452908288629042944303330123253321732583397
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) -29.91-21.274.1711.57.37-7.16-35.64-60.21-68.6-24.134.4749.1
SRH ( 0 - 3Km) (m/s) -135.9-118.6-70.9-47.9-43.2-32.7-41.4-54.6-58.1-64.8-41-32.7
STORM MOTION 313 at 39317 at 40322 at 40325 at 40323 at 40314 at 41305 at 42299 at 43297 at 45304 at 44316 at 41321 at 40
ENERGY HELICITY(EHI) 0-0.01-0.01000000000
1 KM SHEAR (Kts) 222322211920202121202120
3 KM SHEAR (Kts) 161515161615171925282828
6 KM SHEAR (Kts) 353536373836404339313338
UP VERT VELOCITY (m/s) 255453320332
WBZ (Ft) 000000000000
CRAVEN SIG SEVERE 0.040.210.240.190.220.090.080.0500.090.090.05
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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