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 - 07/17/2019
TIME (EDT)11 PM12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM
SHOWALTER INDEX 5.445.685.635.344.934.394.434.514.414.444.123.68
LIFTED INDEX 3.663.623.53.313.343.353.774.074.384.454.193.87
SWEAT INDEX 132.58120.72115.63115.88114.42112.52111.79112.41114.21115.07116.36118.84
K INDEX 15.3213.8514.7714.6210.9711.1514.8917.7819.0719.9822.5116.4
TOTALS TOTAL INDEX 39.0238.9339.239.8240.6641.7741.6941.5341.6341.5642.1642.86
LCL HEIGHT (Ft) 17561472118698883875373569352282119752968
LCL PRESSURE (mb) 916.17926.05935.67942.28947.88950.1950.99952.7958.79949.74911.66878.08
LCL TEMP (in C) 15.4915.8516.216.3916.4316.2815.9315.8515.8516.2815.1413.95
PRECIP WATER (in) 1.021.021.031.031.011.061.121.141.161.111.121.15
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) 1011.311.812.212.412.211.61110.911.911.210.4
EQ LEVEL (Ft) ------------------------------------
LFC (Ft) ------------------------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) -33.31-30.15-33.77-46.32-34.32-32.47-33.35-20.78-17.95-6.24-4.01-7.24
SRH ( 0 - 3Km) (m/s) -60.6-53.9-50.5-49.9-37.3-10.8-11.3-32.5-39.6-44.1-32.8-9.4
STORM MOTION 308 at 25311 at 24313 at 23310 at 23310 at 22312 at 21316 at 20318 at 20316 at 20320 at 20320 at 21318 at 21
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 1199876664213
3 KM SHEAR (Kts) 151616151718181721202022
6 KM SHEAR (Kts) 202019192224262630313033
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 842784278430843084368424842784338439845472998448
CRAVEN SIG SEVERE 000000000000
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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