UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101806.upa.cvt Date: 0600Z 18 OCT 25 Searching for VTSH... Searching the city database file for: VTSH ... Date:0600Z 18 OCT 25 Station: VTSH WMO ident: 48568 Latitude: 7.20 Longitude: 100.60 Elevation: 5.00 ------------------------------------------------------------------------------- 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 1008 5 24.4 14.4 54 10.0 17.9 120 4 296.9 298.7 290.7 326.7 10.28 1 1007 15 30.4 24.4 70 6.0 25.9 108 5 302.9 306.5 298.8 360.7 19.45 2 1006 24 29.0 24.7 78 4.3 25.8 96 5 301.6 305.3 298.8 360.3 19.84 3 1002 63 27.8 23.9 79 3.9 24.9 49 8 300.8 304.3 298.0 356.6 18.96 4 1000 82 27.6 23.8 80 3.8 24.8 25 9 300.8 304.2 298.0 356.3 18.88 5 974 316 25.4 23.0 87 2.4 23.6 52 4 300.8 304.2 297.7 355.1 18.46 6 925 771 23.4 18.9 76 4.5 20.2 140 5 303.2 306.0 296.1 347.8 15.02 7 850 1506 19.0 14.9 77 4.1 16.3 140 8 306.0 308.4 295.3 344.0 12.64 8 725 2856 11.0 8.7 86 2.3 9.6 125 12 311.5 313.4 294.7 341.6 9.79 9 708 3054 10.0 8.0 87 2.0 8.8 125 13 312.5 314.4 294.8 342.1 9.56 10 700 3149 10.0 5.2 72 4.8 7.1 120 14 313.6 315.1 293.9 338.3 7.95 11 665 3575 8.4 2.4 66 6.0 4.9 124 13 316.4 317.7 293.9 338.1 6.86 12 617 4191 4.8 -3.2 56 8.0 0.7 122 13 319.1 320.1 293.0 334.9 4.90 13 533 5373 -1.7 -4.3 82 2.6 -3.0 121 12 325.0 326.0 294.8 342.2 5.23 14 524 5508 -2.3 -10.3 54 8.0 -5.8 120 11 325.8 326.5 293.6 337.0 3.33 15 505 5801 -4.1 -8.0 74 3.9 -5.9 116 11 327.1 327.9 294.6 341.0 4.15 16 500 5880 -4.3 -11.3 58 7.0 -7.3 115 11 327.8 328.4 294.0 338.7 3.23 17 486 6104 -5.3 -16.3 42 11.0 -9.5 130 9 329.2 329.7 293.6 336.9 2.20 18 474 6300 -6.7 -13.7 57 7.0 -9.5 149 8 329.9 330.4 294.2 339.5 2.80 19 471 6349 -6.7 -19.7 35 13.0 -11.2 154 8 330.5 330.8 293.4 336.5 1.70 20 461 6517 -7.9 -12.9 67 5.0 -9.9 170 7 331.0 331.6 294.7 341.6 3.08 21 448 6739 -8.3 -20.3 37 12.0 -12.4 191 6 333.2 333.6 294.1 339.3 1.70 22 424 7165 -11.5 -16.3 68 4.8 -13.3 232 5 334.4 334.9 295.1 343.3 2.53 23 422 7201 -11.5 -21.5 43 10.0 -14.7 235 5 334.9 335.2 294.5 340.7 1.63 24 415 7329 -12.1 -15.3 77 3.2 -13.3 248 4 335.7 336.3 295.6 345.6 2.81 25 402 7572 -13.9 -16.1 83 2.2 -14.7 271 3 336.4 337.0 295.7 346.0 2.71 26 400 7610 -14.3 -16.8 81 2.5 -15.2 275 3 336.4 336.9 295.6 345.5 2.57 27 364 8318 -18.1 -22.6 68 4.5 -19.5 165 2 340.5 340.9 295.9 346.8 1.71 28 352 8567 -19.9 -23.5 73 3.6 -21.0 140 3 341.4 341.7 296.0 347.4 1.63 29 344 8737 -21.1 -29.1 49 8.0 -23.0 123 3 342.0 342.2 295.7 345.8 1.00 30 315 9379 -26.1 -29.2 75 3.1 -26.8 86 5 343.8 344.0 296.1 347.9 1.08 31 305 9611 -27.5 -34.5 51 7.0 -28.7 92 6 345.0 345.1 296.1 347.6 0.67 32 300 9730 -28.3 -35.3 51 7.0 -29.5 95 7 345.5 345.6 296.2 348.0 0.63 33 277 10297 -32.7 -40.7 45 8.0 -33.7 92 6 347.1 347.2 296.3 348.7 0.39 34 251 10983 -38.7 -39.4 93 0.7 -38.8 62 6 348.1 348.2 296.7 350.1 0.50 35 250 11010 -38.7 -39.6 91 0.9 -38.8 60 6 348.5 348.6 296.7 350.5 0.49 36 230 11577 -43.3 -49.3 52 6.0 -43.7 53 10 349.9 350.0 296.8 350.7 0.19 37 214 12057 -47.7 -48.1 96 0.4 -47.7 47 13 350.4 350.4 296.9 351.3 0.23 38 200 12500 -51.5 -57.5 49 6.0 -51.7 50 14 351.2 351.2 297.0 351.6 0.08 39 170 13534 -60.5 -63.0 72 2.5 -60.6 8 14 353.0 353.0 297.3 353.2 0.05 40 151 14260 -67.5 -71.2 59 3.7 -67.5 337 16 353.1 353.1 297.3 353.2 0.02 41 150 14300 -67.7 -71.1 62 3.4 -67.7 335 16 353.5 353.5 297.4 353.5 0.02 42 143 14586 -70.3 -75.0 50 4.7 -70.4 348 17 353.8 353.8 297.4 353.8 0.01 43 122 15514 -78.1 -79.5 80 1.4 -78.1 30 21 356.0 356.0 297.9 356.0 0.01 44 119 15656 -79.7 -82.2 66 2.5 -79.7 36 21 355.6 355.6 297.8 355.6 0.00 45 110 16100 -82.1 -85.5 56 3.4 -82.1 55 22 359.2 359.2 298.5 359.2 0.00 46 107 16254 -82.9 -83.8 86 0.9 -82.9 61 22 360.5 360.5 298.8 360.5 0.00 47 100 16630 -85.1 -85.8 88 0.7 -85.1 80 22 363.3 363.3 299.4 363.3 0.00 48 99 16685 -85.5 -86.5 84 1.0 -85.5 363.6 363.6 299.4 363.6 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 554.97 mb = 5063.69 m = 16612.96 ft Wetbulb zero: 601.88 mb = 4391.39 m = 14407.28 ft Precipitable water: 2.23 inches Sfc-500 mean rel hum: 73.88 % Est. max temperature: 33.29 C = 91.92 F Sfc-Lift cond lev (LCL): 870.31 mb = 1300.78 m = 4267.61 ft T: 20.23 C 700-500 lapse rate: 5.24 C/km ThetaE index: 19.07 C Layer 1006.0- 708.0 mb Conv cond level (CCL): 862.45 mb = 1379.60 m = 4526.18 ft Mean mixing ratio: 17.02 g/kg Conv temperature: 33.12 C = 91.61 F Cap Strength: 1.86 C Lifted Index: -2.15 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.13 C Lifted Index @700 mb: -1.21 C Showalter Index: 0.90 C Risk: Thunderstorms probable Total Totals Index: 42.50 C Risk: None Vertical Totals Index: 23.30 C Cross Totals Index: 19.20 C K Index: 33.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 205.80 Risk: None Energy Index: -1.03 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 542.37 J/kg Max Up Vert Vel: 32.94 m/s Conv Inhibition (B-): 39.93 J/kg Cap Strength: 1.86 C Lift Cond Lev (LCL): 909.12 mb = 921.54 m = 3023.39 ft Lev Free Conv (LFC): 804.12 mb = 1976.99 m = 6486.09 ft Equ Level (EL): 184.12 mb = 13026.33 m = 42736.78 ft B at Equ Level: 538.54 J/kg Wind level data Storm motion: 153 at 8 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1008 5 120 4 -3.5 2.0 | 359 5 0.1 -5.0 1 1000 82 25 9 -3.8 -8.2 | 1 15 -0.3 -15.1 2 975 305 50 4 -3.1 -2.6 | 357 10 0.5 -9.5 3 942 610 120 5 -4.3 2.5 | 10 5 -0.8 -4.5 4 925 771 140 5 -3.2 3.8 | 354 3 0.3 -3.1 5 910 914 155 6 -2.5 5.4 | 326 2 1.0 -1.5 6 850 1506 140 8 -5.1 6.1 | 63 2 -1.6 -0.8 7 848 1524 135 8 -5.7 5.7 | 58 2 -2.1 -1.3 8 789 2134 125 9 -7.4 5.2 | 65 4 -3.8 -1.8 9 708 3048 125 13 -10.6 7.5 | 94 7 -7.1 0.5 10 700 3149 120 14 -12.1 7.0 | 90 9 -8.6 0.0 11 657 3658 125 13 -10.6 7.5 | 94 7 -7.1 0.5 12 587 4572 120 13 -11.3 6.5 | 87 8 -7.7 -0.5 13 566 4877 125 14 -11.5 8.0 | 98 8 -7.9 1.1 14 525 5486 120 11 -9.5 5.5 | 76 6 -6.0 -1.5 15 500 5880 115 11 -10.0 4.6 | 70 7 -6.4 -2.3 16 486 6096 130 9 -6.9 5.8 | 71 4 -3.3 -1.2 17 400 7610 275 3 3.0 -0.3 | 318 10 6.5 -7.2 18 399 7620 235 2 1.6 1.1 | 318 8 5.2 -5.8 19 325 9144 80 3 -3.0 -0.5 | 355 7 0.6 -7.5 20 300 9730 95 7 -7.0 0.6 | 28 7 -3.4 -6.3 21 262 10668 90 6 -6.0 0.0 | 19 7 -2.4 -7.0 22 250 11010 60 6 -5.2 -3.0 | 9 10 -1.6 -10.0 23 209 12192 45 14 -9.9 -9.9 | 21 18 -6.3 -16.9 24 200 12500 50 14 -10.7 -9.0 | 24 17 -7.2 -16.0 25 165 13716 360 14 -0.0 -14.0 | 350 21 3.6 -21.0 26 150 14300 335 16 6.8 -14.5 | 334 24 10.3 -21.5 27 127 15240 20 20 -6.8 -18.8 | 7 26 -3.3 -25.7 28 103 16459 70 23 -21.6 -7.9 | 51 23 -18.1 -14.8 29 100 16630 80 22 -21.7 -3.8 | 59 21 -18.1 -10.8 Wind Parameters Mean winds (0-6000m): 123.0 at 10.4 knts Storm direction: 153.0 at 7.8 knts Shear (0-3000m) pos: 0.9 neg: 1.5 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 94.3 deg Storm rel helicity (0-3000m) pos: 9.6 neg: -4.1 tot: 5.5 m^2/s^2 ave: 1.8 10^-3 m/s^2 rel: 0.13 Storm rel vorticity (0-3000m) horiz: 5.6 stream: 0.7 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 37.28 Bulk Shear: 14.55 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 48 6 3 11| 0.0 2.0 2.0| 4.9 -2.4 2.5 5.0 0.08| 18.7 1.4 1000 94 5 16 7| 2.8 1.0 3.8| 5.0 -4.0 1.0 1.0 -0.02| 12.3 -0.2 1500 121 6 23 4| 1.9 1.2 3.1| 5.7 -4.0 1.6 1.1 0.06| 9.0 0.5 2000 125 7 31 4| 1.4 1.4 2.8| 5.9 -4.1 1.8 0.9 0.06| 7.3 0.4 2500 125 7 40 4| 1.1 1.5 2.6| 7.5 -4.1 3.4 1.4 0.10| 6.2 0.6 3000 125 8 52 4| 0.9 1.5 2.4| 9.6 -4.1 5.5 1.8 0.13| 5.6 0.7 4000 124 9 68 5| 0.7 1.2 1.9| 10.4 -5.4 5.0 1.3 0.11| 4.6 0.5 5000 124 10 75 5| 0.6 1.0 1.6| 13.2 -7.3 5.9 1.2 0.11| 3.9 0.5 6000 123 10 76 5| 0.6 0.7 1.3| 13.4 -12.1 1.3 0.2 0.04| 3.7 0.2 Wrote GIF file: /home/apache/climate/data/raob//VTSH/skewt/VTSH.skewt.20251018.06.gif