UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025060512.upa.cvt Date: 1200Z 5 JUN 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 5 JUN 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 1006 4 29.0 26.4 86 2.6 27.0 0 0 301.6 305.7 300.0 366.9 22.02 1 955 468 24.8 24.0 95 0.8 24.2 217 7 301.9 305.6 299.0 361.2 20.04 2 925 750 23.4 21.4 89 2.0 22.0 245 6 303.2 306.5 297.8 355.5 17.61 3 901 980 23.0 19.4 80 3.6 20.4 276 6 305.1 308.1 297.2 352.7 15.93 4 850 1489 21.0 14.0 64 7.0 16.3 285 9 308.1 310.4 295.3 344.2 11.91 5 842 1571 20.8 12.8 60 8.0 15.5 286 9 308.8 310.9 294.9 342.5 11.10 6 700 3140 10.2 7.6 84 2.6 8.6 280 3 313.8 315.6 295.0 343.0 9.40 7 690 3260 9.2 8.4 95 0.8 8.7 280 3 314.0 315.9 295.6 345.3 10.09 8 661 3616 8.4 4.5 76 3.9 6.1 280 1 316.9 318.5 294.8 342.2 8.02 9 659 3641 8.6 3.6 71 5.0 5.6 280 1 317.4 318.9 294.6 341.3 7.54 10 572 4801 2.2 -0.5 82 2.7 0.7 279 2 323.1 324.3 295.3 344.0 6.47 11 550 5118 0.6 -3.5 74 4.1 -1.5 249 3 324.8 325.9 294.9 342.5 5.38 12 539 5280 0.2 -10.8 43 11.0 -4.7 245 4 326.2 326.8 293.5 336.7 3.11 13 500 5880 -3.3 -6.7 77 3.4 -5.0 170 4 329.0 329.9 295.4 344.6 4.64 14 495 5960 -3.7 -6.8 79 3.1 -5.2 165 4 329.5 330.4 295.6 345.1 4.65 15 454 6639 -7.3 -13.3 62 6.0 -9.8 144 5 333.2 333.8 295.2 343.7 3.02 16 446 6778 -6.7 -17.7 41 11.0 -10.8 142 5 335.7 336.1 295.1 343.2 2.13 17 429 7080 -8.7 -20.7 37 12.0 -12.8 136 5 336.9 337.2 295.0 343.0 1.71 18 400 7620 -12.3 -22.3 43 10.0 -15.5 125 5 339.0 339.3 295.5 344.8 1.60 19 381 7990 -14.7 -24.7 42 10.0 -17.6 113 7 340.6 340.9 295.7 345.6 1.36 20 347 8689 -20.3 -23.4 76 3.1 -21.2 99 9 342.2 342.6 296.3 348.4 1.67 21 345 8731 -20.5 -23.6 76 3.1 -21.4 98 10 342.5 342.9 296.3 348.6 1.65 22 318 9329 -24.7 -35.7 35 11.0 -26.7 87 12 344.8 344.9 296.0 347.0 0.57 23 307 9584 -26.3 -30.1 70 3.8 -27.1 83 15 346.0 346.2 296.6 349.9 1.02 24 300 9750 -27.5 -32.5 62 5.0 -28.5 80 16 346.6 346.8 296.6 349.8 0.83 25 294 9895 -28.5 -38.5 38 10.0 -30.0 347.2 347.3 296.4 349.1 0.47 TRP WND Sounding variables and indices 1000-500 mb thick: 5822.64 m Freezing level: 536.77 mb = 5314.57 m = 17436.05 ft Wetbulb zero: 564.95 mb = 4901.30 m = 16080.18 ft Precipitable water: 2.37 inches Sfc-500 mean rel hum: 75.47 % Est. max temperature: 35.16 C = 95.28 F Sfc-Lift cond lev (LCL): 969.41 mb = 334.53 m = 1097.51 ft T: 26.01 C 700-500 lapse rate: 4.93 C/km ThetaE index: 24.38 C Layer 955.0- 700.0 mb Conv cond level (CCL): 884.27 mb = 1144.08 m = 3753.48 ft Mean mixing ratio: 19.55 g/kg Conv temperature: 33.46 C = 92.22 F Cap Strength: 1.03 C Lifted Index: -3.79 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -4.49 C Lifted Index @700 mb: -3.06 C Showalter Index: 1.84 C Risk: Showers probable Total Totals Index: 41.60 C Risk: None Vertical Totals Index: 24.30 C Cross Totals Index: 17.30 C K Index: 35.70 Risk: > 80 % chance of thunderstorms Sweat Index: 190.00 Risk: None Energy Index: 0.05 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 949.40 J/kg Max Up Vert Vel: 43.58 m/s Conv Inhibition (B-): 30.21 J/kg Cap Strength: 1.02 C Lift Cond Lev (LCL): 931.84 mb = 684.92 m = 2247.10 ft Lev Free Conv (LFC): 796.84 mb = 2039.20 m = 6690.19 ft Wind level data Storm motion: 308 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 1006 4 0 0 -0.0 -0.0 | 128 6 -4.7 3.7 1 1000 0 285 146 141.0 -37.8 | 284 141 136.4 -34.1 2 969 305 210 7 3.5 6.1 | 173 10 -1.2 9.8 3 939 610 225 6 4.2 4.2 | 177 8 -0.4 7.9 4 925 750 245 6 5.4 2.5 | 187 6 0.8 6.2 5 908 914 275 6 6.0 -0.5 | 203 3 1.3 3.2 6 850 1489 285 9 8.7 -2.3 | 251 4 4.0 1.4 7 847 1524 285 9 8.7 -2.3 | 251 4 4.0 1.4 8 788 2134 295 9 8.2 -3.8 | 272 4 3.5 -0.1 9 708 3048 300 3 2.6 -1.5 | 137 3 -2.1 2.2 10 700 3140 280 3 3.0 -0.5 | 152 4 -1.7 3.2 11 657 3658 280 1 1.0 -0.2 | 134 5 -3.7 3.5 12 587 4572 335 3 1.3 -2.7 | 106 4 -3.4 1.0 13 566 4877 255 2 1.9 0.5 | 147 5 -2.7 4.2 14 525 5486 240 5 4.3 2.5 | 177 6 -0.3 6.2 15 500 5880 170 4 -0.7 3.9 | 145 9 -5.3 7.6 16 486 6096 155 5 -2.1 4.5 | 141 11 -6.8 8.2 17 400 7620 125 5 -4.1 2.9 | 127 11 -8.7 6.6 18 400 7620 120 6 -5.2 3.0 | 124 12 -9.8 6.7 19 326 9144 90 11 -11.0 0.0 | 103 16 -15.7 3.7 20 300 9750 80 16 -15.8 -2.8 | 93 20 -20.4 0.9 Wind Parameters Mean winds (0-6000m): 278.5 at 7.9 knts Storm direction: 308.5 at 5.9 knts Shear (0-3000m) pos: 1.1 neg: 24.3 tot: 25.4 10-3/s Storm rel Dir Shear (0-3000m): -144.0 deg Storm rel helicity (0-3000m) pos: 9.3 neg: -2268.1 tot: -2258.8 m^2/s^2 ave: -752.9 10^-3 m/s^2 rel: -0.59 Storm rel vorticity (0-3000m) horiz: 33.3 stream: -19.7 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 4.42 Bulk Shear: 214.88 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 ------------------------------------------------------------------------------- 500 278 48 274 43| 0.0 145.6 145.6| 0.5-2266.6-2266.0 -4532.1 -0.67|182.9-121.9 1000 275 27 266 22| 3.1 72.8 75.9| 5.4-2266.6-2261.2 -2261.2 -0.63| 94.7-59.3 1500 276 20 264 15| 2.9 48.5 51.5| 8.0-2266.6-2258.6 -1505.7 -0.60| 64.1-38.6 2000 278 17 264 12| 2.4 36.4 38.8| 9.1-2266.6-2257.5 -1128.7 -0.59| 48.4-28.7 2500 280 15 264 10| 1.7 29.1 30.8| 9.3-2267.2-2257.9 -903.1 -0.59| 39.3-23.1 3000 281 13 262 9| 1.1 24.3 25.4| 9.3-2268.1-2258.8 -752.9 -0.59| 33.3-19.7 4000 281 10 253 6| 0.9 18.4 19.3| 9.8-2269.7-2259.9 -565.0 -0.58| 25.4 -14.9 5000 283 9 246 4| 0.9 14.7 15.6| 12.7-2271.0-2258.3 -451.7 -0.56| 20.9 -11.7 6000 278 8 232 4| 0.8 12.7 13.4| 15.5-2281.3-2265.8 -377.6 -0.55| 18.2 -10.0 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250605.12.gif