WXForecasting.com
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 - 06/19/2018
TIME (EDT)11 PM12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM
SHOWALTER INDEX 13.0312.1511.6410.349.789.989.739.729.7910.710.6810.5
LIFTED INDEX 13.491313.0211.8210.7110.6710.710.7310.3410.7810.8310.37
SWEAT INDEX 7771.6784.38103.75114.0693.5993.293.6280.1769.1469.7371.22
K INDEX -20.3-19.87-18.25-14.91-20.53-14.45-5.7-3.1-2.46-4.3-4.42-2.32
TOTALS TOTAL INDEX 27.0228.6629.4431.4632.3432.1532.6532.7332.931.4431.5431.94
LCL HEIGHT (Ft) 27442595248719371239777716636642131318112116
LCL PRESSURE (mb) 884.92889.59892.51911.23936.2951.29953.14956.71956.21934.34918.15907.88
LCL TEMP (in C) 7.937.997.728.4810.1210.4510.4310.3610.249.9110.2411
PRECIP WATER (in) 0.520.560.60.680.750.740.760.790.780.770.750.75
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) 17.615.914.510.18.410.912.514.916.419.620.620.4
EQ LEVEL (Ft) ------------------------------------
LFC (Ft) ------------------------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) -94.89-84.84-82.05-76.53-60.35-51.83-39.6-32.67-24.97-22.66-27.53-31.88
SRH ( 0 - 3Km) (m/s) -82.3-69.3-50.9-33.5-5.553.816.77.14.7-17.9-29.3-34.7
STORM MOTION 327 at 32333 at 29339 at 27340 at 25333 at 24332 at 22340 at 21340 at 21344 at 19347 at 19349 at 18350 at 18
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 1816141413141197667
3 KM SHEAR (Kts) 12964324107757
6 KM SHEAR (Kts) 333231292829282725262729
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 978397809777978398049798979898047362980498137371
CRAVEN SIG SEVERE 000000000000
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

* Move Mouse Over Colored Cells For Further Details

PHP Script Developed By Jim Wyman
 SOUTHERN MARYLAND WEATHER
www.somdweather.com