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 - 04/26/2024
TIME (EDT)12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 AM
SHOWALTER INDEX 4.674.043.093.146.28.547.726.73.946.484.944.6
LIFTED INDEX 4.644.965.997.429.129.5810.2510.7610.499.299.168.87
SWEAT INDEX 168.54164.64190.2200.82189.31152.05157.87171207.1187.47209.62196.97
K INDEX 23.9124.9927.1930.3326.4222.1224.5325.4329.5825.5528.0527.44
TOTALS TOTAL INDEX 44.8345.7346.6545.741.2337.9938.9240.1343.7140.9642.9243.06
LCL HEIGHT (Ft) 2876259828061552784588455605563416545366
LCL PRESSURE (mb) 864.44873865.58906.88932.15938.9941.44935.34937.84941.22936.43942.11
LCL TEMP (in C) 6.226.385.357.468.418.478.257.627.357.867.998.6
PRECIP WATER (in) 0.890.941.021.161.111.091.161.131.171.091.141.11
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) 7.69.410.310.51616.616.414.911.31311.910.2
EQ LEVEL (Ft) ---------------3316------------------
LFC (Ft) ---------------3041------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 4.8538.125.45-1.6755.5290.9395.87104.495.94142.58106.8796.8
SRH ( 0 - 3Km) (m/s) 206.1231.3237.8232.3213.3334.2335251122.8305208.488.7
STORM MOTION 147 at 18159 at 16155 at 19152 at 17187 at 15209 at 18202 at 15196 at 18183 at 26195 at 31194 at 25192 at 24
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 293030272520192022222020
3 KM SHEAR (Kts) 15221914138221824201632
6 KM SHEAR (Kts) 192017121716202830323536
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 710470958214821482147089818781697065816970507044
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