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/2109160600F009.gfs
Reading from grid file:/home/data/models/gfs/2109160600F009.gfs
Searching file for grids...
VAR_make_datatype: no ltype: 10
VAR_make_datatype: no ltype: 10
Date: 9 hour GFS valid 15Z THU 16 SEP 21
Station: 58.49,29.3
Latitude:   58.49
Longitude:  29.30
-------------------------------------------------------------------------------
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 1010    88  10.5   2.4  57  8.1   6.6  78   3 282.8 283.6 279.3 295.4  4.49
  1 1000   169  10.3  -0.3  48 10.6   5.5  80   5 283.5 284.1 278.7 294.1  3.75
  2  950   593   6.3  -1.6  57  7.9   2.8  75   5 283.6 284.2 278.4 293.7  3.56
  3  900  1032   2.1  -2.4  72  4.5   0.2  67   4 283.6 284.2 278.4 293.7  3.55
  4  850  1490  -2.3  -3.3  93  0.9  -2.7  55   4 283.7 284.3 278.5 293.7  3.53
  5  800  1970  -1.7 -13.7  39 12.0  -5.5 322   6 289.3 289.6 278.7 294.3  1.65
  6  750  2484  -1.4 -22.1  19 20.7  -7.0 315  11 295.1 295.2 280.4 297.8  0.87
  7  700  3032  -3.2 -21.1  23 18.0  -8.2 312  14 299.0 299.2 282.3 302.2  1.01
  8  650  3616  -5.0 -29.7  12 24.7 -10.6 313  17 303.3 303.4 283.4 305.0  0.50
  9  600  4241  -7.8 -22.3  30 14.5 -11.8 314  20 307.1 307.3 285.5 310.6  1.06
 10  550  4913 -11.8 -18.5  57  6.7 -13.7 308  28 310.1 310.4 287.2 315.4  1.62
 11  500  5636 -16.6 -24.8  49  8.2 -18.5 312  33 312.8 313.0 287.5 316.3  1.03
 12  450  6420 -21.3 -33.8  32 12.5 -23.4 310  36 316.5 316.6 288.2 318.2  0.49
 13  400  7278 -27.3 -39.1  32 11.8 -28.7 309  38 319.5 319.6 288.9 320.7  0.32
 14  350  8225 -34.7 -46.4  29 11.7 -35.6 318  44 322.0 322.0 289.6 322.6  0.17
 15  300  9282 -43.2 -50.3  46  7.1 -43.6 309  56 324.5 324.5 290.3 325.0  0.13
 16  250 10482 -53.5 -55.6  77  2.1 -53.6 300  57 326.5 326.5 290.8 326.8  0.08
 17  200 11898 -56.4 -63.4  41  7.0 -56.5 306  44 343.5 343.5 295.2 343.6  0.04
 18  150 13746 -53.9 -79.9   3 26.0 -54.3 300  27 377.2 377.2 301.8 377.3  0.00
 19  100 16342 -55.6 -83.9   2 28.3 -56.1 276  13 420.3 420.3 307.7 420.3  0.00
TRP                                             0                              
WND                                             0                              

Sounding variables and indices
1000-500 mb thick:      5466.67 m
Freezing level:          876.56 mb =  1247.02 m =  4091.22 ft
Wetbulb zero:            896.66 mb =  1062.18 m =  3484.80 ft
Precipitable water:        0.45 inches
Sfc-500 mean rel hum:     43.67 %
Est. max temperature:     11.34 C =   52.41 F
Sfc-Lift cond lev (LCL): 892.73 mb =  1097.39 m =  3600.33 ft T:    1.43 C
700-500 lapse rate:        5.16 C/km
ThetaE index:              1.71 C Layer 1000.0- 900.0 mb
Conv cond level (CCL):   610.94 mb =  4100.02 m = 13451.35 ft
  Mean mixing ratio:       3.66 g/kg
  Conv temperature:       33.94 C =   93.09 F
Cap Strength:             15.64 C
Lifted Index:             16.72 C Risk: None
Lifted Index @300 mb:     21.77 C
Lifted Index @700 mb:      9.94 C
Showalter Index:          16.84 C Risk: None
Total Totals Index:       27.60 C Risk: None
  Vertical Totals Index:  14.28 C
  Cross Totals Index:     13.33 C
K Index:                  -6.98   Risk: None
Sweat Index:              40.25   Risk: None
Energy Index:              4.75   Risk: None

Parcel Indices
Parcel: using 100 mb layer
CAPE (B+):                 1.03 J/kg
Max Up Vert Vel:           1.44 m/s
Conv Inhibition (B-):  16403.32 J/kg
Cap Strength:             16.59 C
Lift Cond Lev (LCL):     845.72 mb =  1530.14 m =  5020.09 ft
Lev Free Conv (LFC):      -1.00 mb = -9999.00 m = -9999.00 ft

Wind Parameters
Mean winds (0-6000m):            315.9 at   15.8 knts
Storm direction:                 345.9 at   11.9 knts
Shear (0-3000m)              pos:    0.0 neg:    2.8 tot:    2.8 10-3/s
Storm rel Dir Shear (0-3000m):     105.2 deg
Storm rel helicity (0-3000m) pos:   25.8 neg:   -7.6 tot:   18.2 m^2/s^2
                             ave:    6.1 10^-3 m/s^2 rel:   0.54
Storm rel vorticity (0-3000m) horiz:    3.7 stream:    2.0 10^-3/s
Energy-Hel index:          0.00
Bulk Rich Number:          0.02
Bulk Shear:               46.47 m/s
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GFS
2017081706
WLD
-300 60
-102 102
42 42
9
850
temp
ml
severe
58.49
29.3
https://climate.cod.edu/data/forecast