Sounding Index Descriptions


-STANDARD-

FRZLowest freezing level (mb) or BG for below ground
WB0Wet bulb zero (mb) or BG for below ground
PWPrecipitable water (in)
RHAverage relative humidity from surface to 500 mb (%)
MAXTMaximum estimated forecast temperature (C) using a 150mb layer
TH1000-500 mb thickness (m)
L57700-500 mb lapse rate (C/km)
LCLLifting condensation level (mb) using parcel choice
LILifted index @ 500 mb (C) using parcel choice
SIShowalter index (C)
TTTotal totals index (C)
KIK index
SWSWEAT index
EIEnergy index (cal)

-PARCEL- : Thermodynamic Parameters

CAPEConvective available potential energy (J/kg) using parcel choice
CINHConvective inhibition (J/kg) using parcel choice
LCLLifting condensation level (mb) using parcel choice
CAPCap strength (C) using parcel choice
LFCLevel of free convection (mb) using parcel choice
ELEquilibrium level (mb) using parcel choice
MPLMaximum parcel level (mb) using parcel choice

-WIND- : Kinematic Parameters

STMEstimated storm motion (knts) from 0-6 km AGL mean layer, spd 75% of mean, dir 30 deg veer from mean
HEL0-3 km AGL storm relative helicity
SHR+0-3 km AGL positive shear magnitude (sum of veering shear values)
SRDS0-3 km AGL storm relative directional shear (directional difference of storm relative winds)
EHI0-3 km AGL energy helicity index
BRNBulk Richardson number
BSHR0-6 km AGL bulk shear value (kts)
n/a
      MODEL GRIDDED SOUNDING PLOTTING (Ver 5.52-LINUX-X11)

Current filename: /home/data/models/gfs/2009270000F015.gfs
Reading from grid file:/home/data/models/gfs/2009270000F015.gfs
Searching file for grids...
VAR_make_datatype: no ltype: 10
VAR_make_datatype: no ltype: 220
VAR_make_datatype: no ltype: 220
VAR_make_datatype: no ltype: 220
VAR_make_datatype: no ltype: 10
Date: 15 hour GFS valid 15Z SUN 27 SEP 20
Station: 58.49,24.35
Latitude:   58.49
Longitude:  24.35
-------------------------------------------------------------------------------
LEV PRES  HGHT  TEMP  DEWP  RH  DD   WETB DIR SPD THETA THE-V THE-W THE-E   W
     mb     m     C     C    %   C     C  deg knt   K     K     K     K    g/kg
-------------------------------------------------------------------------------
SFC 1012    21  19.0  12.2  64  6.9  14.8  86   8 291.2 292.8 287.5 316.3  8.84
  1 1000   119  19.4  11.0  58  8.4  14.3  92  17 292.5 294.0 287.5 316.1  8.24
  2  950   559  17.0   7.7  54  9.3  11.7 116  25 294.5 295.7 286.9 314.6  6.95
  3  900  1020  17.2  -0.4  30 17.6   8.2 141  20 299.2 300.0 285.9 311.6  4.11
  4  850  1504  13.8  -1.0  36 14.8   6.4 126  18 300.6 301.4 286.5 313.3  4.19
  5  800  2012  10.1   0.2  50  9.9   5.1 114  21 301.9 302.8 287.6 316.6  4.86
  6  750  2544   5.8   1.3  73  4.5   3.5 114  22 302.9 303.9 288.7 319.9  5.62
  7  700  3105   1.5  -2.1  77  3.6  -0.2 121  21 304.2 305.0 288.2 318.5  4.70
  8  650  3698  -2.5  -8.0  66  5.5  -4.8 126  22 306.2 306.8 287.5 316.2  3.22
  9  600  4328  -6.7 -12.7  62  6.0  -8.9 126  22 308.4 308.8 287.4 316.0  2.39
 10  550  5001 -10.6 -21.7  39 11.1 -13.7 123  20 311.5 311.7 287.3 315.6  1.22
 11  500  5729 -14.1 -32.5  19 18.4 -17.7 118  16 315.8 315.9 287.9 317.6  0.50
 12  450  6520 -19.0 -38.4  16 19.4 -22.0  96  15 319.4 319.4 288.9 320.5  0.31
 13  400  7387 -25.0 -36.8  33 11.8 -26.7  78  16 322.5 322.6 290.0 324.0  0.41
 14  350  8342 -32.6 -38.3  57  5.6 -33.3  59  14 324.7 324.8 290.6 326.2  0.40
 15  300  9408 -41.4 -45.3  66  3.9 -41.6  55  15 327.0 327.1 291.1 327.9  0.22
 16  250 10618 -50.7 -56.7  49  5.9 -50.9  59  14 330.7 330.7 292.0 330.9  0.07
 17  200 12041 -59.0 -62.4  64  3.4 -59.1  48  12 339.3 339.3 294.2 339.5  0.04
 18  150 13854 -56.7 -75.0   8 18.3 -56.9 265   5 372.4 372.4 301.0 372.5  0.01
 19  100 16430 -56.1 -83.9   2 27.8 -56.6 239  10 419.4 419.4 307.6 419.4  0.00
 20   50 20791 -58.8 -86.4   2 27.6 -59.5 319   0 504.9 504.9 315.3 504.9  0.00
TRP                                             0                              
WND                                             0                              

Sounding variables and indices
1000-500 mb thick:      5610.05 m
Freezing level:          680.88 mb =  3331.63 m = 10930.42 ft
Wetbulb zero:            702.91 mb =  3071.27 m = 10076.24 ft
Precipitable water:        0.90 inches
Sfc-500 mean rel hum:     52.70 %
Est. max temperature:     28.14 C =   82.66 F
Sfc-Lift cond lev (LCL): 913.40 mb =   893.84 m =  2932.50 ft T:   17.14 C
700-500 lapse rate:        5.96 C/km
ThetaE index:              4.74 C Layer 1000.0- 850.0 mb
Conv cond level (CCL):   727.44 mb =  2792.48 m =  9161.58 ft
  Mean mixing ratio:       6.99 g/kg
  Conv temperature:       31.31 C =   88.37 F
Cap Strength:              6.43 C
Lifted Index:              5.34 C Risk: None
Lifted Index @300 mb:      9.10 C
Lifted Index @700 mb:      3.44 C
Showalter Index:           6.13 C Risk: None
Total Totals Index:       41.11 C Risk: None
  Vertical Totals Index:  27.96 C
  Cross Totals Index:     13.15 C
K Index:                  23.39   Risk: 20-40 % chance of thunderstorms
Sweat Index:              52.45   Risk: None
Energy Index:              0.94   Risk: None

Parcel Indices
Parcel: using 100 mb layer
CAPE (B+):                22.06 J/kg
Max Up Vert Vel:           6.64 m/s
Conv Inhibition (B-):  20611.64 J/kg
Cap Strength:              6.43 C
Lift Cond Lev (LCL):     827.79 mb =  1725.87 m =  5662.22 ft
Lev Free Conv (LFC):      -1.00 mb = -9999.00 m = -9999.00 ft

Wind Parameters
Mean winds (0-6000m):            120.9 at   20.4 knts
Storm direction:                 150.9 at   15.3 knts
Shear (0-3000m)              pos:    3.2 neg:    1.7 tot:    4.9 10-3/s
Storm rel Dir Shear (0-3000m):      71.0 deg
Storm rel helicity (0-3000m) pos:  104.0 neg:  -10.9 tot:   93.1 m^2/s^2
                             ave:   31.0 10^-3 m/s^2 rel:   0.50
Storm rel vorticity (0-3000m) horiz:    7.8 stream:    3.9 10^-3/s
Energy-Hel index:          0.01
Bulk Rich Number:          4.26
Bulk Shear:                5.18 m/s
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Parcel Type
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Most Unstable Effective Inflow
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GFS
2017081200
WLD
-300 60
-102 102
42 42
15
850
temp
ml
severe
58.49
24.35
https://climate.cod.edu/data/forecast