UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121600.upa.cvt Date: 0000Z 16 DEC 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 16 DEC 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 1009 4 24.4 19.5 74 4.9 21.0 60 5 296.8 299.4 293.8 338.0 14.28 1 1000 84 23.8 17.8 69 6.0 19.7 45 22 297.0 299.3 292.9 334.3 12.93 2 925 765 21.4 15.4 69 6.0 17.4 50 24 301.2 303.4 293.4 336.4 11.98 3 885 1148 19.2 14.5 74 4.7 16.1 53 17 302.7 304.9 293.7 337.7 11.81 4 860 1395 20.0 10.0 53 10.0 13.7 51 11 306.1 307.7 292.6 333.2 9.00 5 850 1496 19.2 10.2 56 9.0 13.5 50 9 306.3 308.0 292.8 334.1 9.23 6 780 2229 13.2 8.9 75 4.3 10.5 74 6 307.4 309.2 293.2 335.4 9.22 7 706 3063 8.6 5.5 81 3.1 6.8 110 7 311.2 312.8 293.3 336.1 8.05 8 700 3134 9.4 3.4 66 6.0 5.9 110 9 312.9 314.2 293.0 334.7 7.00 9 697 3170 9.4 2.4 62 7.0 5.5 108 9 313.3 314.5 292.7 333.7 6.54 10 665 3559 9.2 -2.8 43 12.0 2.9 86 7 317.3 318.2 292.3 332.3 4.68 11 600 4399 2.0 -4.0 64 6.0 -1.0 48 4 318.4 319.4 292.7 333.7 4.74 12 584 4617 1.2 -11.8 37 13.0 -4.3 38 4 320.0 320.5 291.4 328.8 2.65 13 562 4925 -0.3 -9.3 51 9.0 -4.3 13 2 321.7 322.4 292.5 332.9 3.36 14 535 5317 -2.7 -17.7 30 15.0 -8.1 275 1 323.4 323.8 291.6 329.5 1.78 15 500 5850 -5.9 -12.9 58 7.0 -8.7 260 7 325.8 326.4 293.2 335.4 2.83 16 495 5929 -6.1 -14.1 53 8.0 -9.2 265 7 326.5 327.1 293.2 335.4 2.60 17 474 6267 -7.5 -24.5 24 17.0 -12.6 271 9 328.9 329.1 292.5 332.8 1.11 18 468 6365 -8.7 -17.7 48 9.0 -11.9 269 10 328.6 329.0 293.2 335.6 2.03 19 438 6874 -13.1 -17.1 72 4.0 -14.5 257 13 329.3 329.8 293.6 337.2 2.29 20 405 7467 -16.5 -21.4 66 4.9 -18.0 242 17 332.4 332.7 293.9 338.4 1.71 21 400 7560 -16.5 -24.5 50 8.0 -18.7 240 18 333.5 333.8 293.9 338.3 1.31 22 397 7617 -16.7 -25.7 46 9.0 -19.1 240 17 334.0 334.2 293.9 338.3 1.19 23 391 7731 -16.5 -30.5 29 14.0 -19.8 242 17 335.7 335.9 294.0 338.6 0.77 24 358 8390 -19.7 -57.7 2 38.0 -23.8 252 19 340.0 340.0 294.4 340.2 0.04 25 346 8643 -20.7 -58.7 2 38.0 -24.6 257 20 342.0 342.0 294.8 342.1 0.04 26 300 9680 -29.1 -48.1 14 19.0 -31.2 260 22 344.4 344.4 295.5 345.0 0.16 27 250 10950 -40.7 -53.7 23 13.0 -41.5 245 32 345.6 345.6 295.7 346.0 0.10 28 244 11115 -42.1 -55.1 23 13.0 -42.8 240 31 345.9 345.9 295.8 346.2 0.09 29 224 11689 -46.9 -55.9 35 9.0 -47.3 224 28 347.1 347.1 296.1 347.4 0.09 30 215 11959 -49.5 -52.9 67 3.4 -49.7 217 27 347.1 347.2 296.1 347.7 0.13 31 210 12113 -50.5 -58.5 38 8.0 -50.8 212 26 347.9 347.9 296.3 348.2 0.07 32 203 12334 -52.5 -58.5 48 6.0 -52.7 204 27 348.1 348.2 296.3 348.4 0.07 33 200 12430 -53.5 -59.5 48 6.0 -53.7 200 28 348.0 348.1 296.3 348.3 0.06 34 197 12527 -53.9 -63.9 28 10.0 -54.1 200 28 348.9 348.9 296.4 349.1 0.04 35 191 12724 -55.9 -65.9 28 10.0 -56.1 199 27 348.8 348.8 296.4 348.9 0.03 36 183 12994 -58.5 -61.7 66 3.2 -58.6 198 26 348.9 348.9 296.4 349.1 0.05 37 179 13132 -59.5 -72.5 17 13.0 -59.6 197 26 349.5 349.5 296.5 349.5 0.01 38 162 13747 -65.1 -68.5 63 3.4 -65.1 194 24 350.1 350.1 296.7 350.2 0.02 39 150 14210 -69.1 -75.1 41 6.0 -69.1 180 31 351.1 351.1 296.8 351.1 0.01 40 143 14495 -71.1 -79.1 30 8.0 -71.1 176 34 352.4 352.4 297.1 352.4 0.01 41 141 14579 -70.9 -83.9 13 13.0 -70.9 175 35 354.2 354.2 297.5 354.2 0.00 42 126 15239 -75.9 -85.9 19 10.0 -75.9 165 42 356.7 356.7 298.0 356.7 0.00 43 119 15571 -74.3 -89.3 8 15.0 -74.3 173 36 365.5 365.5 299.8 365.5 0.00 44 118 15621 -74.3 -89.3 8 15.0 -74.3 174 35 366.4 366.4 299.9 366.4 0.00 45 100 16570 -81.3 -91.3 17 10.0 -81.3 225 11 370.6 370.6 300.7 370.7 0.00 46 93 16975 -83.3 -92.3 19 9.0 -83.3 255 2 374.5 374.5 301.4 374.5 0.00 47 82 17679 -80.5 -91.5 14 11.0 -80.5 295 9 393.9 393.9 304.3 393.9 0.00 48 72 18404 -84.3 -92.3 23 8.0 -84.3 25 11 400.8 400.8 305.3 400.8 0.00 49 70 18560 -83.9 -91.9 23 8.0 -83.9 100 3 404.9 404.9 305.9 404.9 0.00 50 69 18640 -83.9 -92.9 19 9.0 -83.9 90 3 406.6 406.6 306.0 406.6 0.00 51 65 18976 -77.3 -89.3 13 12.0 -77.3 51 2 428.0 428.0 308.6 428.0 0.00 52 59 19533 -76.5 -89.5 11 13.0 -76.6 346 1 441.8 441.8 310.1 441.8 0.00 53 55 19941 -72.1 -90.1 5 18.0 -72.2 341 3 460.9 460.9 311.8 460.9 0.00 54 50 20500 -73.7 -90.7 6 17.0 -73.8 85 10 469.8 469.8 312.6 469.8 0.00 55 49 20618 -73.7 -90.7 6 17.0 -73.8 81 11 472.5 472.5 312.8 472.5 0.00 56 45 21118 -73.3 -92.3 4 19.0 -73.4 66 18 485.2 485.2 313.8 485.2 0.00 57 42 21528 -67.9 -91.9 2 24.0 -68.1 62 23 508.2 508.2 315.5 508.2 0.00 58 37 22297 -65.3 -92.3 1 27.0 -65.7 70 34 533.6 533.6 317.1 533.6 0.00 59 32 23201 -56.7 -88.7 1 32.0 -58.0 82 41 579.3 579.3 319.6 579.3 0.00 60 30 23610 -57.9 -87.9 1 30.0 -59.0 90 40 586.8 586.8 320.0 586.8 0.01 61 22 25581 -54.5 -86.5 1 32.0 -56.6 85 43 651.4 651.4 322.7 651.4 0.01 TRP 93 16975 -83.3 -92.3 19 9.0 -83.3 255 2 374.5 374.5 301.4 374.5 0.00 WND Sounding variables and indices 1000-500 mb thick: 5766.00 m Freezing level: 566.40 mb = 4863.23 m = 15955.28 ft Wetbulb zero: 616.17 mb = 4181.95 m = 13720.15 ft Precipitable water: 1.68 inches Sfc-500 mean rel hum: 59.72 % Est. max temperature: 33.73 C = 92.71 F Sfc-Lift cond lev (LCL): 939.36 mb = 630.45 m = 2068.37 ft T: 21.87 C 700-500 lapse rate: 5.63 C/km ThetaE index: 4.52 C Layer 860.0- 850.0 mb Conv cond level (CCL): 782.60 mb = 2200.58 m = 7219.67 ft Mean mixing ratio: 12.47 g/kg Conv temperature: 35.03 C = 95.06 F Cap Strength: 5.57 C Lifted Index: 2.69 C Risk: None Lifted Index @300 mb: 7.59 C Lifted Index @700 mb: 3.11 C Showalter Index: 3.46 C Risk: None Total Totals Index: 41.20 C Risk: None Vertical Totals Index: 25.10 C Cross Totals Index: 16.10 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 147.40 Risk: None Energy Index: 0.30 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.75 J/kg Max Up Vert Vel: 4.85 m/s Conv Inhibition (B-): 23447.41 J/kg Cap Strength: 5.49 C Lift Cond Lev (LCL): 878.33 mb = 1212.97 m = 3979.50 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 88 at 7 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 1009 4 60 5 -4.3 -2.5 | 314 3 2.3 -2.3 1 1000 84 45 22 -15.6 -15.6 | 30 18 -8.9 -15.4 2 975 305 45 25 -17.7 -17.7 | 32 21 -11.0 -17.5 3 942 610 45 25 -17.7 -17.7 | 32 21 -11.0 -17.5 4 925 765 50 24 -18.4 -15.4 | 38 19 -11.7 -15.2 5 909 914 55 22 -18.0 -12.6 | 42 17 -11.3 -12.4 6 850 1496 50 9 -6.9 -5.8 | 2 6 -0.2 -5.6 7 847 1524 50 9 -6.9 -5.8 | 2 6 -0.2 -5.6 8 788 2134 70 6 -5.6 -2.1 | 331 2 1.0 -1.9 9 707 3048 110 7 -6.6 2.4 | 182 3 0.1 2.6 10 700 3134 110 9 -8.5 3.1 | 151 4 -1.8 3.3 11 656 3658 80 6 -5.9 -1.0 | 318 1 0.8 -0.8 12 586 4572 40 4 -2.6 -3.1 | 305 5 4.1 -2.9 13 564 4877 20 2 -0.7 -1.9 | 286 6 6.0 -1.7 14 523 5486 230 1 0.8 0.6 | 264 7 7.4 0.8 15 500 5850 260 7 6.9 1.2 | 264 14 13.6 1.4 16 484 6096 275 8 8.0 -0.7 | 272 15 14.6 -0.5 17 400 7560 240 18 15.6 9.0 | 248 24 22.3 9.2 18 397 7620 240 17 14.7 8.5 | 248 23 21.4 8.7 19 323 9144 265 21 20.9 1.8 | 266 28 27.6 2.0 20 300 9680 260 22 21.7 3.8 | 262 29 28.3 4.0 21 260 10668 250 27 25.4 9.2 | 254 33 32.0 9.4 22 250 10950 245 32 29.0 13.5 | 249 38 35.7 13.7 23 207 12192 210 26 13.0 22.5 | 221 30 19.7 22.7 24 200 12430 200 28 9.6 26.3 | 212 31 16.2 26.5 25 162 13716 195 24 6.2 23.2 | 209 27 12.9 23.4 26 150 14210 180 31 0.0 31.0 | 192 32 6.7 31.2 27 126 15240 165 42 -10.9 40.6 | 174 41 -4.2 40.8 28 102 16459 195 20 5.2 19.3 | 211 23 11.8 19.5 29 100 16570 225 11 7.8 7.8 | 241 17 14.5 8.0 30 93 16975 255 2 1.9 0.5 | 265 9 8.6 0.7 31 73 18288 330 16 8.0 -13.9 | 313 20 14.7 -13.7 32 70 18560 100 3 -3.0 0.5 | 259 4 3.7 0.7 33 56 19812 315 1 0.7 -0.7 | 274 7 7.4 -0.5 34 50 20500 85 10 -10.0 -0.9 | 78 3 -3.3 -0.7 35 44 21336 60 20 -17.3 -10.0 | 47 14 -10.6 -9.8 36 34 22860 75 41 -39.6 -10.6 | 72 35 -32.9 -10.4 37 30 23610 90 40 -40.0 0.0 | 90 33 -33.3 0.2 38 25 24384 85 41 -40.8 -3.6 | 84 34 -34.2 -3.4 39 17 25908 85 46 -45.8 -4.0 | 84 39 -39.2 -3.8 Wind Parameters Mean winds (0-6000m): 58.3 at 8.9 knts Storm direction: 88.3 at 6.7 knts Shear (0-3000m) pos: 2.4 neg: 1.7 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): -132.9 deg Storm rel helicity (0-3000m) pos: 35.1 neg: -18.3 tot: 16.8 m^2/s^2 ave: 5.6 10^-3 m/s^2 rel: 0.18 Storm rel vorticity (0-3000m) horiz: 8.5 stream: 1.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.45 Bulk Shear: 25.92 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 45 23 31 18| 0.0 20.8 20.8| 18.5 0.0 18.5 36.9 0.64| 23.8 15.2 1000 47 23 34 19| 3.2 10.4 13.6| 35.1 -2.7 32.3 32.3 0.57| 15.5 8.9 1500 49 20 33 16| 2.1 3.5 5.6| 35.1 -16.9 18.1 12.1 0.28| 14.2 4.0 2000 50 17 30 13| 2.4 2.6 5.0| 35.1 -17.8 17.2 8.6 0.24| 11.4 2.7 2500 52 15 29 10| 2.4 2.1 4.4| 35.1 -18.2 16.8 6.7 0.21| 9.7 2.0 3000 55 13 30 9| 2.4 1.7 4.1| 35.1 -18.3 16.8 5.6 0.18| 8.5 1.5 4000 61 12 33 7| 1.8 1.8 3.6| 35.1 -19.9 15.1 3.8 0.09| 7.5 0.7 5000 60 10 23 5| 1.4 1.4 2.8| 35.1 -24.3 10.7 2.1 0.03| 6.5 0.2 6000 58 9 11 5| 1.3 1.0 2.3| 42.4 -30.9 11.6 1.9 0.01| 6.3 0.1 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251216.00.gif