UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101500.upa.cvt Date: 0000Z 15 OCT 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 15 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 25.0 23.0 89 2.0 23.6 0 0 297.5 300.7 296.4 349.1 17.82 1 1000 75 24.8 23.3 91 1.5 23.8 175 1 298.0 301.3 296.9 351.1 18.30 2 972 326 25.8 21.7 78 4.1 22.8 170 3 301.4 304.5 297.0 351.6 17.05 3 925 762 22.4 20.7 90 1.7 21.2 95 5 302.2 305.3 297.1 352.0 16.84 4 862 1374 18.6 17.1 91 1.5 17.6 111 8 304.4 307.1 296.0 347.3 14.38 5 850 1495 18.0 15.8 87 2.2 16.5 115 8 305.0 307.5 295.5 345.0 13.40 6 818 1823 16.2 15.5 96 0.7 15.7 117 8 306.5 309.0 296.1 347.5 13.67 7 775 2283 15.0 10.1 72 4.9 11.9 123 8 309.9 311.8 294.5 340.7 10.07 8 700 3139 10.2 5.8 74 4.4 7.5 140 5 313.8 315.4 294.2 339.6 8.29 9 642 3853 6.0 3.7 85 2.3 4.6 135 4 316.9 318.4 294.7 341.5 7.80 10 550 5105 -0.5 -6.5 64 6.0 -3.4 145 3 323.5 324.3 293.7 337.6 4.28 11 502 5829 -5.3 -7.5 84 2.2 -6.3 171 2 326.2 327.1 294.5 340.7 4.34 12 500 5860 -4.7 -9.4 70 4.7 -6.8 175 2 327.3 328.1 294.3 339.9 3.75 13 456 6583 -8.5 -15.5 57 7.0 -11.2 247 2 331.3 331.8 294.3 340.0 2.51 14 419 7236 -13.5 -13.9 97 0.4 -13.6 278 3 333.0 333.6 295.2 343.8 3.12 15 400 7590 -14.7 -18.1 75 3.4 -15.9 295 3 335.9 336.4 295.3 344.0 2.30 16 358 8419 -19.7 -24.7 64 5.0 -21.1 310 4 340.0 340.3 295.6 345.3 1.44 17 338 8841 -23.5 -26.7 75 3.2 -24.3 319 4 340.5 340.7 295.6 345.2 1.27 18 304 9606 -28.5 -39.5 34 11.0 -30.1 354 6 343.9 344.0 295.6 345.5 0.41 19 300 9700 -29.3 -38.3 41 9.0 -30.6 360 6 344.1 344.2 295.7 345.9 0.47 20 281 10166 -33.5 -36.4 75 2.9 -33.9 7 6 344.5 344.7 296.0 346.9 0.60 21 258 10763 -37.9 -45.9 43 8.0 -38.7 21 6 346.6 346.6 296.1 347.6 0.24 22 250 10980 -39.7 -45.7 53 6.0 -40.2 35 6 347.0 347.1 296.2 348.1 0.26 23 241 11229 -42.1 -46.9 59 4.8 -42.5 40 8 347.1 347.1 296.2 348.0 0.23 24 226 11660 -45.5 -58.5 22 13.0 -46.0 49 11 348.3 348.3 296.3 348.6 0.06 25 208 12206 -50.7 -58.7 38 8.0 -51.0 60 15 348.6 348.6 296.4 348.8 0.07 26 200 12460 -52.5 -63.5 25 11.0 -52.8 55 18 349.6 349.6 296.6 349.8 0.04 27 185 12958 -57.3 -60.9 63 3.6 -57.4 53 21 349.7 349.7 296.6 350.0 0.06 28 181 13096 -58.3 -66.3 35 8.0 -58.5 53 22 350.3 350.3 296.7 350.4 0.03 29 174 13343 -60.9 -65.4 55 4.5 -61.0 52 24 350.0 350.0 296.7 350.1 0.03 30 150 14250 -67.9 -72.9 49 5.0 -67.9 60 26 353.1 353.1 297.3 353.2 0.01 31 147 14371 -68.5 -74.5 42 6.0 -68.5 58 24 354.1 354.1 297.5 354.2 0.01 32 127 15234 -75.7 -78.6 64 2.9 -75.7 45 13 356.3 356.3 298.0 356.3 0.01 33 105 16323 -80.3 -85.3 43 5.0 -80.3 85 12 367.4 367.4 300.1 367.4 0.00 34 100 16600 -78.1 -85.1 31 7.0 -78.1 65 11 376.8 376.8 301.7 376.8 0.00 35 87 17381 -83.5 -87.2 52 3.7 -83.5 65 20 381.3 381.3 302.5 381.3 0.00 36 80 17852 -78.1 -86.1 26 8.0 -78.1 68 17 401.7 401.7 305.5 401.7 0.00 37 70 18610 -79.1 -87.1 26 8.0 -79.1 75 37 415.2 415.2 307.2 415.2 0.00 38 61 19406 -71.3 -89.3 5 18.0 -71.4 92 22 449.2 449.2 310.8 449.2 0.00 39 50 20600 -64.1 -91.1 1 27.0 -64.4 90 40 492.4 492.4 314.4 492.4 0.00 40 48 20851 -63.1 -90.1 1 27.0 -63.5 92 39 500.6 500.6 315.0 500.6 0.00 TRP 87 17381 -83.5 -87.2 52 3.7 -83.5 65 20 381.3 381.3 302.5 381.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5785.00 m Freezing level: 557.08 mb = 5008.40 m = 16431.57 ft Wetbulb zero: 588.72 mb = 4554.01 m = 14940.79 ft Precipitable water: 2.33 inches Sfc-500 mean rel hum: 79.76 % Est. max temperature: 32.15 C = 89.87 F Sfc-Lift cond lev (LCL): 979.46 mb = 258.36 m = 847.62 ft T: 25.53 C 700-500 lapse rate: 5.48 C/km ThetaE index: 7.93 C Layer 775.0- 642.0 mb Conv cond level (CCL): 891.53 mb = 1081.88 m = 3549.44 ft Mean mixing ratio: 17.15 g/kg Conv temperature: 30.90 C = 87.63 F Cap Strength: 1.25 C Lifted Index: -2.32 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.78 C Lifted Index @700 mb: -0.84 C Showalter Index: 0.08 C Risk: Thunderstorms probable Total Totals Index: 43.20 C Risk: None Vertical Totals Index: 22.70 C Cross Totals Index: 20.50 C K Index: 34.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 207.60 Risk: None Energy Index: -1.05 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 775.35 J/kg Max Up Vert Vel: 39.38 m/s Conv Inhibition (B-): 24.09 J/kg Cap Strength: 1.25 C Lift Cond Lev (LCL): 922.21 mb = 788.26 m = 2586.13 ft Lev Free Conv (LFC): 857.21 mb = 1422.30 m = 4666.29 ft Equ Level (EL): 787.21 mb = 2149.60 m = 7052.40 ft B at Equ Level: 25.28 J/kg Max Parcel Lev (MPL): 97.21 mb = 16758.95 m = 54982.77 ft Wind level data Storm motion: 158 at 3 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 | 338 3 1.3 -3.2 1 1000 75 175 1 -0.1 1.0 | 331 3 1.2 -2.2 2 974 305 175 3 -0.3 3.0 | 282 1 1.0 -0.2 3 941 610 105 3 -2.9 0.8 | 33 3 -1.6 -2.4 4 925 762 95 5 -5.0 0.4 | 53 5 -3.7 -2.8 5 909 914 95 6 -6.0 0.5 | 60 5 -4.7 -2.7 6 850 1495 115 8 -7.3 3.4 | 92 6 -5.9 0.2 7 847 1524 115 8 -7.3 3.4 | 92 6 -5.9 0.2 8 788 2134 120 8 -6.9 4.0 | 98 6 -5.6 0.8 9 708 3048 140 6 -3.9 4.6 | 119 3 -2.5 1.4 10 700 3139 140 5 -3.2 3.8 | 108 2 -1.9 0.6 11 657 3658 130 4 -3.1 2.6 | 70 2 -1.8 -0.6 12 586 4572 155 3 -1.3 2.7 | 355 0 0.0 -0.5 13 565 4877 155 3 -1.3 2.7 | 355 0 0.0 -0.5 14 524 5486 125 2 -1.6 1.1 | 9 2 -0.3 -2.1 15 500 5860 175 2 -0.2 2.0 | 317 2 1.1 -1.2 16 485 6096 225 1 0.7 0.7 | 321 3 2.0 -2.5 17 400 7590 295 3 2.7 -1.3 | 318 6 4.0 -4.5 18 398 7620 295 3 2.7 -1.3 | 318 6 4.0 -4.5 19 324 9144 325 4 2.3 -3.3 | 331 7 3.6 -6.5 20 300 9700 360 6 -0.0 -6.0 | 352 9 1.3 -9.2 21 261 10668 15 6 -1.6 -5.8 | 2 9 -0.2 -9.0 22 250 10980 35 6 -3.4 -4.9 | 15 8 -2.1 -8.1 23 208 12192 60 15 -13.0 -7.5 | 47 16 -11.7 -10.7 24 200 12460 55 18 -14.7 -10.3 | 45 19 -13.4 -13.5 25 163 13716 50 26 -19.9 -16.7 | 43 27 -18.6 -19.9 26 150 14250 60 26 -22.5 -13.0 | 53 27 -21.2 -16.2 27 126 15240 45 13 -9.2 -9.2 | 32 15 -7.9 -12.4 28 102 16459 90 12 -12.0 0.0 | 73 11 -10.7 -3.2 29 100 16600 65 11 -10.0 -4.6 | 48 12 -8.7 -7.9 30 87 17381 65 20 -18.1 -8.5 | 55 20 -16.8 -11.7 31 74 18288 70 15 -14.1 -5.1 | 57 15 -12.8 -8.3 32 70 18610 75 37 -35.7 -9.6 | 70 37 -34.4 -12.8 33 57 19812 100 15 -14.8 2.6 | 87 13 -13.5 -0.6 34 50 20600 90 40 -40.0 0.0 | 85 39 -38.7 -3.2 35 46 21031 95 38 -37.9 3.3 | 90 37 -36.5 0.1 Wind Parameters Mean winds (0-6000m): 127.8 at 4.6 knts Storm direction: 157.8 at 3.5 knts Shear (0-3000m) pos: 1.0 neg: 0.7 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 139.6 deg Storm rel helicity (0-3000m) pos: 9.5 neg: -0.9 tot: 8.6 m^2/s^2 ave: 2.9 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 2.9 stream: 1.2 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 610.80 Bulk Shear: 1.27 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 ------------------------------------------------------------------------------- 500 163 2 329 1| 3.1 0.0 3.1| 0.3 -0.8 -0.5 -1.1 0.02| 5.8 0.1 1000 117 3 46 2| 1.5 2.1 3.6| 2.8 -0.9 1.9 1.9 0.21| 5.3 1.1 1500 112 5 65 3| 1.9 1.4 3.3| 6.8 -0.9 5.9 3.9 0.37| 4.5 1.7 2000 114 6 76 4| 1.5 1.0 2.5| 7.6 -0.9 6.7 3.4 0.39| 3.5 1.4 2500 116 6 82 4| 1.2 0.8 2.0| 8.7 -0.9 7.8 3.1 0.41| 3.1 1.3 3000 119 6 87 4| 1.0 0.7 1.7| 9.5 -0.9 8.6 2.9 0.41| 2.9 1.2 4000 123 6 88 3| 0.7 0.5 1.2| 9.5 -1.8 7.7 1.9 0.26| 2.5 0.7 5000 126 5 86 3| 0.6 0.4 1.0| 9.5 -1.9 7.6 1.5 0.22| 2.2 0.5 6000 128 5 81 2| 0.6 0.5 1.0| 9.6 -2.7 6.9 1.2 0.12| 2.2 0.3 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251015.00.gif