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 - 12/21/2024
TIME (EST)6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM
SHOWALTER INDEX 20.218.9617.6115.7114.713.9113.4710.569.089.028.578.44
LIFTED INDEX 29.0128.4127.6426.7726.4426.1926.3425.0223.4522.0320.6720.56
SWEAT INDEX 91.0585.882.4483.2387.7985.83234.3798.6395.3696.73100.14101.02
K INDEX -0.450.47-1.09-2.84-5.43-7.43-8.06-2.97-1.10.66-0.6113.1
TOTALS TOTAL INDEX 20.1221.9423.7226.9128.7630.2331.636.9139.1438.9339.5339.76
LCL HEIGHT (Ft) 11629871069137116221965210622002345238823222122
LCL PRESSURE (mb) 941.38945.91941.77931.01922.65911.21905.41900.58895.15892.89893.7900.16
LCL TEMP (in C) -13.07-13.01-12.34-13.05-13.32-13.07-12.68-12.06-11.49-10.84-10.18-9.52
PRECIP WATER (in) 0.360.360.340.330.320.310.330.320.330.330.390.5
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) 29.328.527.325.925.124.926.622.217.11516.614.2
EQ LEVEL (Ft) ------------------------------------
LFC (Ft) ------------------------------------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 111.76110.33111.98110.46102.5890.38106.97131.91131.14114.53107.66106.55
SRH ( 0 - 3Km) (m/s) 334.6384.5377.8357.4308.9269284282.9208.9165.5169.4168.2
STORM MOTION 331 at 14337 at 17337 at 19338 at 22337 at 23336 at 23332 at 25327 at 27323 at 28319 at 26318 at 28320 at 29
ENERGY HELICITY(EHI) 000000000000
1 KM SHEAR (Kts) 272622171412121315161717
3 KM SHEAR (Kts) 343638434747433836343439
6 KM SHEAR (Kts) 555961646864706659575657
UP VERT VELOCITY (m/s) ------------------------------------
WBZ (Ft) 000000000000
CRAVEN SIG SEVERE 000000000000
SUPERCELL COMPOSITE (SCP) 000000000000
SIG TORNADO (STP) 000000000000

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