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 - 04/18/2024
TIME (EDT)12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PM9 PM10 PM11 PM
SHOWALTER INDEX 11.5410.89.869.199.18.518.347.837.466.88.329.33
LIFTED INDEX 11.1410.549.639.018.878.258.177.637.266.027.758.96
SWEAT INDEX 99.32104.6109.51116.24121.79118.03113.22114.08123.49119.19126.48127.16
K INDEX 0.561.354.787.948.9913.9714.9514.6612.9615.369.144.46
TOTALS TOTAL INDEX 40.1641.5143.144.5644.645.7845.6345.8845.6648.5944.5342.13
LCL HEIGHT (Ft) 386740724161404145354468490752886139314926652864
LCL PRESSURE (mb) 843.69836.78833.59838.01822.13824.07809.12795.92767.67867.53884.27877.83
LCL TEMP (in C) -7.19-8-7.79-7.32-8.53-8.14-9.22-9.76-11.72-4.18-4.22-5.76
PRECIP WATER (in) 0.230.230.250.260.250.260.260.250.230.290.240.21
CAPE (J/Kg) 5.713.875.199.927.078.687.838.370.0043.240.000.00
NCAPE (J/Kg) 0.010.010.010.010.010.010.010.0100.0300
CINS (J/Kg) -0.83-0.88-1.80-4.07-6.49-6.06-8.28-18.190.00-8.470.000.00
LID STRENGTH (C) 1413.11210.910.89.910.29.810.16.810.211.9
EQ LEVEL (Ft) 69807202792183998438886998169978---10405------
LFC (Ft) 55415622573062176579649376217982---5473------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) -4.881.549.487.16.247.677.2434.4654.081.17-14.47-55.07
SRH ( 0 - 3Km) (m/s) -66.1-16-4.9-29.3-31.1-59.2-69.40.560.5-118.2-170.8-205.1
STORM MOTION 283 at 49283 at 49284 at 50286 at 51287 at 52290 at 51292 at 50295 at 48297 at 48296 at 51295 at 52294 at 53
ENERGY HELICITY(EHI) 000000000-0.0300
1 KM SHEAR (Kts) 101212131212111115152125
3 KM SHEAR (Kts) 242420191821242621264045
6 KM SHEAR (Kts) 302728343940403938424446
UP VERT VELOCITY (m/s) 33344444---9------
WBZ (Ft) 90842462492492465225199279275220
CRAVEN SIG SEVERE 0.090.050.070.170.140.180.160.1700.9300
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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