UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121100.upa.cvt Date: 0000Z 11 DEC 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 11 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 24.0 19.7 77 4.3 21.0 60 5 296.4 299.0 293.9 338.1 14.46 1 1001 75 24.0 17.0 65 7.0 19.3 42 13 297.1 299.3 292.4 332.5 12.26 2 1000 84 24.0 17.0 65 7.0 19.3 40 14 297.1 299.4 292.4 332.7 12.28 3 937 650 19.4 16.1 81 3.3 17.2 41 17 298.0 300.3 292.8 334.0 12.37 4 925 761 20.4 15.4 73 5.0 17.1 45 16 300.2 302.4 293.2 335.3 11.98 5 923 780 20.6 15.6 73 5.0 17.2 46 16 300.6 302.8 293.4 336.3 12.16 6 850 1491 17.4 15.9 91 1.5 16.4 90 15 304.4 306.9 295.4 344.6 13.49 7 829 1705 15.6 15.6 100 0.0 15.6 97 14 304.7 307.2 295.6 345.1 13.57 8 700 3129 8.6 7.7 94 0.9 8.0 125 12 312.0 313.8 294.6 341.2 9.47 9 562 4917 0.0 -4.8 70 4.8 -2.4 155 11 322.1 323.0 293.7 337.7 4.77 10 502 5809 -7.7 -7.7 100 0.0 -7.7 150 12 323.3 324.1 293.7 337.4 4.27 11 500 5840 -6.9 -7.9 93 1.0 -7.4 150 12 324.6 325.5 294.0 338.6 4.22 12 499 5856 -6.1 -9.0 80 2.9 -7.4 150 12 325.8 326.6 294.0 338.8 3.88 13 489 6015 -6.5 -12.5 62 6.0 -8.9 150 12 327.2 327.8 293.7 337.3 2.99 14 427 7070 -10.7 -24.7 31 14.0 -14.9 163 10 334.8 335.0 294.1 339.2 1.21 15 400 7570 -14.7 -26.7 35 12.0 -17.9 170 9 335.9 336.1 294.3 339.8 1.08 16 380 7956 -17.7 -27.7 41 10.0 -20.2 165 8 336.9 337.1 294.5 340.7 1.03 17 346 8654 -20.9 -38.9 18 18.0 -24.0 153 6 341.7 341.8 295.1 343.2 0.38 18 300 9690 -29.9 -47.9 16 18.0 -31.8 205 6 343.2 343.3 295.3 343.9 0.17 19 280 10177 -34.1 -48.1 23 14.0 -35.4 188 6 344.0 344.1 295.4 344.8 0.18 20 250 10960 -39.9 -58.9 11 19.0 -40.9 185 7 346.7 346.8 296.0 347.0 0.05 21 224 11699 -46.9 -60.9 19 14.0 -47.4 200 9 347.1 347.1 296.0 347.3 0.05 22 215 11969 -48.9 -54.9 50 6.0 -49.1 205 9 348.1 348.1 296.3 348.5 0.10 23 200 12440 -53.1 -59.1 48 6.0 -53.3 205 13 348.7 348.7 296.4 349.0 0.07 24 197 12537 -54.1 -60.1 48 6.0 -54.2 203 13 348.6 348.6 296.4 348.9 0.06 25 187 12867 -56.7 -64.7 36 8.0 -56.9 197 14 349.6 349.6 296.6 349.8 0.03 26 175 13282 -60.5 -64.7 58 4.2 -60.6 189 16 350.1 350.1 296.7 350.2 0.04 27 150 14220 -68.5 -73.4 49 4.9 -68.5 170 17 352.1 352.1 297.1 352.1 0.01 28 119 15573 -78.9 -83.9 44 5.0 -78.9 147 26 357.1 357.1 298.1 357.1 0.00 29 112 15917 -80.9 -88.9 25 8.0 -80.9 145 26 359.6 359.6 298.6 359.6 0.00 30 107 16176 -78.3 -89.3 15 11.0 -78.3 142 26 369.2 369.2 300.4 369.2 0.00 31 100 16560 -80.3 -91.3 14 11.0 -80.3 110 13 372.6 372.6 301.0 372.6 0.00 32 88 17272 -84.5 -92.5 23 8.0 -84.5 120 7 378.0 378.0 301.9 378.0 0.00 33 79 17873 -80.3 -90.3 17 10.0 -80.3 31 12 398.6 398.6 305.0 398.6 0.00 34 70 18550 -83.1 -90.1 29 7.0 -83.1 5 15 406.6 406.6 306.1 406.6 0.00 35 68 18711 -83.7 -90.7 28 7.0 -83.7 13 15 408.7 408.7 306.3 408.7 0.00 36 57 19719 -73.3 -91.3 5 18.0 -73.4 62 17 453.4 453.4 311.2 453.5 0.00 37 55 19932 -67.1 -91.1 2 24.0 -67.3 69 18 472.3 472.3 312.8 472.3 0.00 38 50 20510 -65.7 -89.7 2 24.0 -66.0 85 20 488.7 488.7 314.1 488.7 0.00 39 44 21290 -64.1 -90.1 2 26.0 -64.5 92 25 510.8 510.8 315.7 510.8 0.00 TRP 88 17272 -84.5 -92.5 23 8.0 -84.5 120 7 378.0 378.0 301.9 378.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5756.00 m Freezing level: 562.00 mb = 4916.83 m = 16131.13 ft Wetbulb zero: 593.52 mb = 4472.45 m = 14673.23 ft Precipitable water: 2.10 inches Sfc-500 mean rel hum: 85.59 % Est. max temperature: 31.52 C = 88.73 F Sfc-Lift cond lev (LCL): 947.63 mb = 551.60 m = 1809.69 ft T: 20.20 C 700-500 lapse rate: 5.72 C/km ThetaE index: 7.77 C Layer 700.0- 500.0 mb Conv cond level (CCL): 785.66 mb = 2157.03 m = 7076.77 ft Mean mixing ratio: 12.37 g/kg Conv temperature: 34.63 C = 94.34 F Cap Strength: 3.86 C Lifted Index: 2.34 C Risk: None Lifted Index @300 mb: 7.70 C Lifted Index @700 mb: 2.78 C Showalter Index: -1.94 C Risk: Thunderstorms probable Total Totals Index: 47.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.30 C Cross Totals Index: 22.80 C K Index: 39.30 Risk: > 80 % chance of thunderstorms Sweat Index: 232.80 Risk: None Energy Index: -1.25 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.26 J/kg Max Up Vert Vel: 5.70 m/s Conv Inhibition (B-): 12330.16 J/kg Cap Strength: 3.87 C Lift Cond Lev (LCL): 889.98 mb = 1094.27 m = 3590.07 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 142 at 9 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 | 352 10 1.3 -9.7 1 1000 84 40 14 -9.0 -10.7 | 11 18 -3.4 -17.9 2 975 305 35 15 -8.6 -12.3 | 9 20 -3.0 -19.5 3 941 610 40 17 -10.9 -13.0 | 15 21 -5.3 -20.2 4 925 761 45 16 -11.3 -11.3 | 17 19 -5.7 -18.5 5 909 914 55 15 -12.3 -8.6 | 23 17 -6.7 -15.8 6 850 1491 90 15 -15.0 0.0 | 53 12 -9.4 -7.2 7 847 1524 90 15 -15.0 0.0 | 53 12 -9.4 -7.2 8 788 2134 115 11 -10.0 4.6 | 60 5 -4.4 -2.5 9 707 3048 125 11 -9.0 6.3 | 76 4 -3.4 -0.9 10 700 3129 125 12 -9.8 6.9 | 86 4 -4.2 -0.3 11 656 3658 130 10 -7.7 6.4 | 70 2 -2.1 -0.7 12 585 4572 155 9 -3.8 8.2 | 241 2 1.8 1.0 13 563 4877 155 11 -4.6 10.0 | 199 3 1.0 2.8 14 522 5486 155 13 -5.5 11.8 | 181 5 0.1 4.6 15 500 5840 150 12 -6.0 10.4 | 173 3 -0.4 3.2 16 484 6096 150 12 -6.0 10.4 | 173 3 -0.4 3.2 17 400 7570 170 9 -1.6 8.9 | 247 4 4.0 1.7 18 397 7620 170 9 -1.6 8.9 | 247 4 4.0 1.7 19 323 9144 145 4 -2.3 3.3 | 320 5 3.3 -3.9 20 300 9690 205 6 2.5 5.4 | 282 8 8.1 -1.7 21 261 10668 170 7 -1.2 6.9 | 274 4 4.4 -0.3 22 250 10960 185 7 0.6 7.0 | 272 6 6.2 -0.2 23 208 12192 210 10 5.0 8.7 | 262 11 10.6 1.5 24 200 12440 205 13 5.5 11.8 | 247 12 11.1 4.6 25 163 13716 180 17 0.0 17.0 | 210 11 5.6 9.8 26 150 14220 170 17 -3.0 16.7 | 195 10 2.7 9.6 27 126 15240 150 26 -13.0 22.5 | 154 17 -7.4 15.4 28 102 16459 140 26 -16.7 19.9 | 139 17 -11.1 12.8 29 100 16560 110 13 -12.2 4.4 | 68 7 -6.6 -2.7 30 88 17272 120 7 -6.1 3.5 | 7 4 -0.5 -3.7 31 73 18288 330 16 8.0 -13.9 | 327 25 13.6 -21.0 32 70 18550 5 15 -1.3 -14.9 | 349 23 4.3 -22.1 33 56 19812 65 17 -15.4 -7.2 | 34 17 -9.8 -14.3 34 50 20510 85 20 -19.9 -1.7 | 58 17 -14.3 -8.9 35 42 21336 95 27 -26.9 2.4 | 77 22 -21.3 -4.8 36 39 21641 95 30 -29.9 2.6 | 79 25 -24.3 -4.5 Wind Parameters Mean winds (0-6000m): 112.0 at 12.1 knts Storm direction: 142.0 at 9.1 knts Shear (0-3000m) pos: 3.3 neg: 2.0 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 82.5 deg Storm rel helicity (0-3000m) pos: 72.7 neg: -3.0 tot: 69.7 m^2/s^2 ave: 23.2 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 6.2 stream: 3.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.48 Bulk Shear: 33.55 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 38 14 10 19| 0.0 12.1 12.1| 22.0 -3.0 18.9 37.9 0.41| 13.1 5.4 1000 42 15 14 19| 3.2 6.1 9.2| 44.8 -3.0 41.8 41.8 0.50| 10.1 5.1 1500 53 15 22 17| 4.7 4.0 8.8| 68.2 -3.0 65.2 43.5 0.59| 9.4 5.5 2000 64 15 29 16| 4.3 3.0 7.4| 71.4 -3.0 68.4 34.2 0.53| 8.5 4.5 2500 72 14 34 14| 3.7 2.4 6.2| 72.0 -3.0 69.0 27.6 0.51| 7.2 3.7 3000 79 13 38 12| 3.3 2.0 5.3| 72.7 -3.0 69.7 23.2 0.51| 6.2 3.2 4000 91 13 46 10| 2.6 1.5 4.2| 73.5 -3.5 70.0 17.5 0.47| 5.2 2.5 5000 102 12 53 8| 2.4 1.2 3.7| 73.8 -4.8 69.0 13.8 0.41| 4.7 1.9 6000 112 12 65 6| 2.0 1.1 3.1| 73.8 -6.2 67.6 11.3 0.36| 4.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251211.00.gif