UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101300.upa.cvt Date: 0000Z 13 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 13 OCT 25 Station: VTBC WMO ident: 48480 Latitude: 12.60 Longitude: 102.12 Elevation: 4.00 ------------------------------------------------------------------------------- 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 4 24.6 18.6 69 6.0 20.5 0 0 297.1 299.5 293.3 336.1 13.50 1 1006 22 24.8 24.4 98 0.4 24.5 14 0 297.4 301.0 297.5 353.9 19.47 2 1000 75 24.6 23.6 94 1.0 23.9 55 1 297.8 301.1 297.0 351.9 18.65 3 982 235 25.4 23.0 87 2.4 23.7 166 1 300.1 303.4 297.4 353.8 18.30 4 925 761 22.0 20.7 92 1.3 21.1 345 6 301.8 304.9 297.0 351.5 16.84 5 850 1494 18.6 16.6 88 2.0 17.2 355 20 305.6 308.3 296.2 347.9 14.12 6 831 1688 17.6 14.5 82 3.1 15.5 12 17 306.6 308.9 295.4 344.4 12.59 7 700 3138 9.6 8.6 93 1.0 9.0 120 9 313.1 315.0 295.3 344.3 10.08 8 680 3378 8.0 7.5 97 0.5 7.7 127 8 313.9 315.8 295.2 343.8 9.62 9 636 3930 7.0 2.4 72 4.6 4.4 129 7 318.9 320.3 294.7 341.7 7.18 10 630 4008 7.2 2.2 70 5.0 4.3 128 7 320.0 321.3 295.0 342.8 7.14 11 534 5348 -2.3 -2.7 97 0.4 -2.5 140 6 324.1 325.2 295.1 343.3 5.88 12 532 5378 -1.7 -4.6 81 2.9 -3.1 140 6 325.1 326.2 294.8 342.0 5.12 13 500 5870 -4.3 -6.3 86 2.0 -5.3 150 8 327.8 328.8 295.2 343.8 4.78 14 494 5965 -4.7 -7.7 79 3.0 -6.1 152 8 328.4 329.3 295.0 343.0 4.34 15 464 6457 -7.9 -12.6 69 4.7 -9.8 166 7 330.4 331.0 294.6 341.1 3.13 16 440 6869 -11.1 -12.2 92 1.1 -11.6 178 5 331.4 332.1 295.1 343.1 3.41 17 436 6939 -10.5 -13.6 78 3.1 -11.8 180 5 333.0 333.7 295.2 343.7 3.07 18 425 7136 -11.1 -21.1 43 10.0 -14.4 186 4 334.7 335.0 294.5 340.7 1.67 19 418 7264 -12.1 -16.1 72 4.0 -13.6 190 3 335.0 335.5 295.3 344.2 2.61 20 400 7600 -14.5 -19.5 66 5.0 -16.2 200 2 336.1 336.6 295.1 343.4 2.04 21 379 8007 -17.3 -20.1 79 2.8 -18.2 240 3 337.7 338.1 295.5 345.0 2.05 22 355 8495 -20.1 -27.1 54 7.0 -21.9 290 2 340.3 340.5 295.4 344.6 1.17 23 343 8749 -22.5 -25.9 74 3.4 -23.4 317 2 340.4 340.7 295.6 345.4 1.35 24 312 9439 -27.5 -31.6 68 4.1 -28.3 30 3 342.8 342.9 295.7 346.1 0.87 25 300 9720 -29.5 -36.5 51 7.0 -30.6 60 5 343.8 343.9 295.7 346.0 0.56 26 298 9768 -29.7 -38.7 41 9.0 -31.0 60 5 344.2 344.3 295.7 346.0 0.45 27 295 9839 -30.5 -35.2 63 4.7 -31.3 60 5 344.0 344.2 295.8 346.6 0.65 28 275 10332 -34.5 -37.8 72 3.3 -35.0 60 6 345.2 345.3 296.0 347.3 0.54 29 269 10486 -35.7 -39.8 66 4.1 -36.2 60 7 345.7 345.8 296.1 347.4 0.45 30 267 10537 -35.5 -44.5 39 9.0 -36.4 60 7 346.7 346.8 296.1 347.8 0.27 31 266 10563 -35.7 -44.7 39 9.0 -36.6 60 7 346.8 346.8 296.1 347.9 0.27 32 250 10990 -39.5 -45.5 53 6.0 -40.0 75 9 347.3 347.4 296.3 348.4 0.26 33 248 11045 -40.1 -46.1 53 6.0 -40.6 73 9 347.2 347.3 296.3 348.3 0.25 34 241 11239 -41.5 -51.5 33 10.0 -42.2 65 9 348.0 348.0 296.3 348.6 0.14 35 209 12185 -50.3 -51.5 87 1.2 -50.4 26 11 348.7 348.7 296.5 349.4 0.16 36 202 12406 -52.3 -54.2 80 1.9 -52.4 29 10 349.0 349.0 296.5 349.5 0.12 37 200 12470 -52.7 -56.0 67 3.3 -52.8 30 10 349.3 349.3 296.5 349.7 0.10 38 198 12535 -53.3 -54.5 87 1.2 -53.4 32 10 349.4 349.4 296.6 349.9 0.12 39 194 12667 -54.1 -63.1 32 9.0 -54.3 36 11 350.1 350.1 296.7 350.3 0.04 40 187 12902 -56.1 -59.2 68 3.1 -56.2 43 13 350.6 350.6 296.8 350.9 0.07 41 150 14270 -67.5 -71.6 56 4.1 -67.5 70 19 353.8 353.8 297.5 353.9 0.02 42 121 15526 -77.9 -82.6 46 4.7 -77.9 53 18 357.2 357.2 298.1 357.2 0.00 43 112 15963 -81.1 -85.8 45 4.7 -81.1 65 16 359.2 359.2 298.5 359.2 0.00 44 100 16600 -80.1 -84.0 52 3.9 -80.1 95 34 373.0 373.0 301.1 373.0 0.00 45 72 18469 -79.5 -86.5 30 7.0 -79.5 78 18 411.0 411.0 306.6 411.0 0.00 46 70 18630 -78.5 -86.5 26 8.0 -78.5 80 24 416.4 416.4 307.3 416.5 0.00 47 63 19237 -73.1 -89.1 7 16.0 -73.2 80 21 441.1 441.1 310.0 441.1 0.00 48 56 19922 -75.5 -89.5 9 14.0 -75.6 82 20 450.7 450.7 310.9 450.7 0.00 49 50 20590 -67.3 -91.3 2 24.0 -67.5 90 34 484.9 484.9 313.8 484.9 0.00 50 47 20967 -63.7 -90.7 1 27.0 -64.1 85 33 502.2 502.2 315.1 502.2 0.00 51 30 23760 -58.1 -88.1 1 30.0 -59.2 80 51 586.2 586.3 320.0 586.3 0.01 52 28 24195 -57.3 -87.3 1 30.0 -58.6 80 53 600.2 600.2 320.6 600.2 0.01 53 27 24425 -57.7 -87.7 1 30.0 -59.0 80 54 605.3 605.3 320.9 605.3 0.01 54 23 25448 -52.8 -85.2 1 32.3 -55.3 80 65 648.0 648.0 322.6 648.1 0.01 55 22 25736 -51.5 -84.5 1 33.0 -54.4 82 64 660.3 660.3 323.1 660.4 0.01 TRP 112 15963 -81.1 -85.8 45 4.7 -81.1 65 16 359.2 359.2 298.5 359.2 0.00 WND 23 25448 -52.8 -85.2 1 32.3 -55.3 80 65 648.0 648.0 322.6 648.1 0.01 Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 557.24 mb = 5023.45 m = 16480.94 ft Wetbulb zero: 569.31 mb = 4829.05 m = 15843.16 ft Precipitable water: 2.47 inches Sfc-500 mean rel hum: 86.69 % Est. max temperature: 32.75 C = 90.96 F Sfc-Lift cond lev (LCL): 923.38 mb = 776.23 m = 2546.66 ft T: 21.93 C 700-500 lapse rate: 5.09 C/km ThetaE index: 12.05 C Layer 925.0- 630.0 mb Conv cond level (CCL): 903.03 mb = 969.40 m = 3180.42 ft Mean mixing ratio: 17.61 g/kg Conv temperature: 30.44 C = 86.78 F Cap Strength: 0.94 C Lifted Index: -2.15 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.39 C Lifted Index @700 mb: -1.61 C Showalter Index: -0.60 C Risk: Thunderstorms probable Total Totals Index: 43.80 C Risk: None Vertical Totals Index: 22.90 C Cross Totals Index: 20.90 C K Index: 38.50 Risk: > 80 % chance of thunderstorms Sweat Index: 247.20 Risk: None Energy Index: -0.89 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 814.48 J/kg Max Up Vert Vel: 40.36 m/s Conv Inhibition (B-): 19.98 J/kg Cap Strength: 0.94 C Lift Cond Lev (LCL): 934.21 mb = 673.92 m = 2211.01 ft Lev Free Conv (LFC): 819.21 mb = 1808.93 m = 5934.74 ft Equ Level (EL): 169.21 mb = 13522.23 m = 44363.72 ft B at Equ Level: 813.86 J/kg Max Parcel Lev (MPL): 89.21 mb = 17249.70 m = 56592.80 ft Wind level data Storm motion: 110 at 6 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 4 0 0 -0.0 -0.0 | 290 6 5.9 -2.2 1 1000 75 55 1 -0.8 -0.6 | 299 6 5.1 -2.8 2 974 305 215 1 0.6 0.8 | 282 7 6.5 -1.4 3 941 610 330 3 1.5 -2.6 | 303 9 7.4 -4.8 4 925 761 345 6 1.6 -5.8 | 317 11 7.5 -8.0 5 909 914 350 8 1.4 -7.9 | 324 12 7.3 -10.1 6 850 1494 355 20 1.7 -19.9 | 341 23 7.6 -22.1 7 847 1524 355 20 1.7 -19.9 | 341 23 7.6 -22.1 8 788 2134 60 10 -8.7 -5.0 | 21 8 -2.8 -7.2 9 707 3048 115 10 -9.1 4.2 | 123 4 -3.2 2.0 10 700 3138 120 9 -7.8 4.5 | 141 3 -1.9 2.3 11 657 3658 135 7 -4.9 4.9 | 199 3 1.0 2.8 12 587 4572 115 7 -6.3 3.0 | 150 1 -0.4 0.8 13 565 4877 140 6 -3.9 4.6 | 220 3 2.0 2.4 14 524 5486 140 6 -3.9 4.6 | 220 3 2.0 2.4 15 500 5870 150 8 -4.0 6.9 | 202 5 1.9 4.7 16 486 6096 155 8 -3.4 7.3 | 207 6 2.5 5.1 17 400 7600 200 2 0.7 1.9 | 273 7 6.6 -0.3 18 399 7620 200 3 1.0 2.8 | 265 7 6.9 0.6 19 324 9144 360 2 -0.0 -2.0 | 305 7 5.9 -4.2 20 300 9720 60 5 -4.3 -2.5 | 341 5 1.6 -4.7 21 262 10668 60 7 -6.1 -3.5 | 2 6 -0.2 -5.7 22 250 10990 75 9 -8.7 -2.3 | 32 5 -2.8 -4.5 23 209 12192 25 11 -4.6 -10.0 | 354 12 1.3 -12.2 24 200 12470 30 10 -5.0 -8.7 | 355 11 0.9 -10.9 25 164 13716 70 19 -17.9 -6.5 | 54 15 -12.0 -8.7 26 150 14270 70 19 -17.9 -6.5 | 54 15 -12.0 -8.7 27 127 15240 45 19 -13.4 -13.4 | 26 17 -7.5 -15.6 28 112 15963 65 16 -14.5 -6.8 | 44 12 -8.6 -9.0 29 103 16459 95 19 -18.9 1.7 | 88 13 -13.0 -0.5 30 100 16600 95 34 -33.9 3.0 | 92 28 -28.0 0.8 31 74 18288 75 12 -11.6 -3.1 | 47 8 -5.7 -5.3 32 70 18630 80 24 -23.6 -4.2 | 70 19 -17.7 -6.4 33 57 19812 80 18 -17.7 -3.1 | 66 13 -11.8 -5.3 34 50 20590 90 34 -34.0 0.0 | 86 28 -28.1 -2.2 35 44 21336 80 32 -31.5 -5.6 | 73 27 -25.6 -7.7 36 35 22860 95 44 -43.8 3.8 | 92 38 -37.9 1.6 37 30 23760 80 51 -50.2 -8.9 | 76 46 -44.3 -11.0 38 27 24384 80 54 -53.2 -9.4 | 76 49 -47.3 -11.6 39 23 25448 80 65 -64.0 -11.3 | 77 60 -58.1 -13.5 40 20 25908 85 63 -62.8 -5.5 | 82 57 -56.9 -7.7 41 19 26213 85 60 -59.8 -5.2 | 82 54 -53.9 -7.4 Wind Parameters Mean winds (0-6000m): 80.4 at 8.4 knts Storm direction: 110.4 at 6.3 knts Shear (0-3000m) pos: 2.1 neg: 0.4 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): -174.7 deg Storm rel helicity (0-3000m) pos: 105.1 neg: -2.1 tot: 103.0 m^2/s^2 ave: 34.3 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 9.2 stream: 5.3 10^-3/s Energy-Hel index: 0.47 Bulk Rich Number: 67.09 Bulk Shear: 12.14 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 ------------------------------------------------------------------------------- 500 267 1 287 7| 0.0 2.4 2.4| 3.4 -2.1 1.4 2.7 0.07| 5.9 0.4 1000 343 3 308 9| 4.6 1.2 5.8| 21.8 -2.1 19.7 19.7 0.48| 7.6 3.6 1500 351 7 323 12| 6.6 0.8 7.4| 42.1 -2.1 40.1 26.7 0.45| 8.6 3.8 2000 0 10 333 13| 3.4 0.6 4.0| 91.9 -2.1 89.8 44.9 0.52| 10.7 5.6 2500 11 10 341 12| 2.5 0.5 3.0| 99.7 -2.1 97.6 39.0 0.53| 10.0 5.3 3000 24 10 350 11| 2.1 0.4 2.5|105.1 -2.1 103.0 34.3 0.57| 9.2 5.3 4000 47 9 6 9| 1.3 0.4 1.6|108.5 -2.3 106.2 26.5 0.58| 7.6 4.4 5000 64 9 18 6| 0.9 0.3 1.3|109.3 -2.6 106.7 21.3 0.56| 6.5 3.7 6000 80 8 33 4| 1.0 0.3 1.2|109.6 -3.8 105.8 17.6 0.52| 5.7 3.0 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251013.00.gif