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 - 09/21/2024
TIME (EDT)10 PM11 PM12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM
SHOWALTER INDEX -0.59-0.99-2.54-2.8-2-0.04-0.431.172.820.810.682.23
LIFTED INDEX -1.66-1.85-2.54-2.45-2.38-1.63-1.53-0.720.30.783.476.22
SWEAT INDEX 326.88344.75261.95262.21210.26104.67123.7165.8475.65137.94149.78135.25
K INDEX 24.2225.6626.425.6124.5122.8824.1622.3820.7925.3825.9623.57
TOTALS TOTAL INDEX 5252.554.755.2254.2450.9651.7348.5544.9749.4649.546.78
LCL HEIGHT (Ft) 394332892915289828652611220418621668154517362986
LCL PRESSURE (mb) 826.96848.76860.42860.3861.99869.57883.64894.53901.9907901.94861.46
LCL TEMP (in C) 10.1410.5210.7310.199.629.539.619.579.379.058.696.27
PRECIP WATER (in) 0.90.890.910.840.80.80.870.850.80.830.80.75
CAPE (J/Kg) 298.91327.60283.38210.36230.45194.5180.2593.4542.490.000.000.00
NCAPE (J/Kg) 0.070.070.060.050.050.050.030.040.03000
CINS (J/Kg) -357.69-353.92-445.80-545.42-568.81-616.80-707.29-709.82-713.730.000.000.00
LID STRENGTH (C) 6.650.411.75.86.812.413.75.64.57.9
EQ LEVEL (Ft) 284312920728376282142792928001221772121419664---------
LFC (Ft) 134481300213601141091404514040142341422314505---------
BULK RICHARDSON ------------------------------------
BRN SHEAR (m/s) ------------------------------------
SRH ( 0 - 1Km) (m/s) 61.7185.58102.85101.7268.7631.428.6-43.79-57.49-96.68-267.65-287.53
SRH ( 0 - 3Km) (m/s) 232.3221.1185.9163.8126.116811610.2-83.3-1.7-58.6-228.3
STORM MOTION 265 at 16270 at 17278 at 18281 at 16281 at 17280 at 20277 at 21277 at 26281 at 28284 at 31279 at 35282 at 38
ENERGY HELICITY(EHI) 0.430.450.330.220.180.20.060.01-0.02000
1 KM SHEAR (Kts) 1317181914981114233639
3 KM SHEAR (Kts) 322624272825232723152325
6 KM SHEAR (Kts) 484443414145454546414141
UP VERT VELOCITY (m/s) 24252320211912139---------
WBZ (Ft) 821182118202819381968184819081848193820882268241
CRAVEN SIG SEVERE 7.397.426.274.444.864.511.862.161.01000
SUPERCELL COMPOSITE (SCP) 1.41.41.10.60.40.5000000
SIG TORNADO (STP) 0.10.20.20.10.10000000

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