UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025053112.upa.cvt Date: 1200Z 31 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:1200Z 31 MAY 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 29.4 27.4 89 2.0 27.9 0 0 301.9 306.2 300.8 371.2 23.35 1 1000 76 29.0 24.8 78 4.2 25.9 220 4 302.1 305.8 299.0 361.7 20.08 2 925 768 23.2 21.8 92 1.4 22.2 230 19 303.0 306.4 298.0 356.6 18.05 3 892 1085 20.8 20.2 96 0.6 20.4 239 20 303.7 306.9 297.5 354.1 16.94 4 888 1124 21.6 17.6 78 4.0 18.8 240 20 304.9 307.6 296.2 348.0 14.41 5 850 1504 20.0 15.2 74 4.8 16.7 250 20 307.1 309.5 295.7 345.9 12.89 6 803 1994 18.2 10.2 60 8.0 13.1 303 12 310.2 312.1 294.4 340.1 9.78 7 802 2004 18.2 10.2 60 8.0 13.1 304 11 310.3 312.2 294.4 340.3 9.79 8 735 2746 13.2 9.0 76 4.2 10.5 287 29 312.7 314.6 295.1 343.2 9.86 9 726 2850 13.2 4.2 54 9.0 7.9 281 32 313.8 315.2 293.3 336.1 7.14 10 700 3156 10.8 3.8 62 7.0 6.7 270 40 314.4 315.8 293.6 337.0 7.20 11 688 3300 10.2 1.2 54 9.0 5.2 270 47 315.3 316.5 292.9 334.5 6.08 12 597 4466 2.6 2.6 100 0.0 2.6 305 22 319.6 321.1 295.4 344.3 7.76 13 535 5350 -0.7 -1.4 95 0.7 -1.1 322 8 325.8 327.1 296.0 347.1 6.47 14 533 5380 -0.3 -2.1 88 1.8 -1.3 321 8 326.6 327.9 296.0 347.0 6.17 15 501 5874 -2.5 -5.3 81 2.8 -3.9 301 5 329.8 330.8 296.0 347.1 5.15 16 500 5890 -2.5 -5.0 83 2.5 -3.8 300 5 330.0 331.1 296.1 347.7 5.28 17 441 6877 -8.9 -9.7 94 0.8 -9.3 19 3 334.0 334.8 296.3 348.2 4.16 18 431 7055 -8.9 -13.9 67 5.0 -10.9 37 3 336.2 336.8 295.9 346.8 3.03 19 416 7329 -10.3 -14.9 69 4.6 -12.2 65 2 337.8 338.4 296.2 348.0 2.89 20 400 7630 -12.9 -15.8 79 2.9 -14.0 100 1 338.2 338.8 296.2 348.1 2.79 21 335 8957 -22.5 -23.0 96 0.5 -22.7 87 16 342.7 343.1 296.5 349.3 1.79 22 300 9760 -27.1 -31.6 66 4.5 -28.0 50 13 347.2 347.4 296.8 350.7 0.91 23 299 9784 -27.1 -32.0 63 4.9 -28.1 51 13 347.5 347.7 296.8 350.9 0.88 24 288 10054 -29.1 -33.3 67 4.2 -29.9 60 14 348.4 348.6 297.0 351.5 0.80 25 250 11050 -37.9 -40.8 74 2.9 -38.2 80 14 349.7 349.8 297.0 351.5 0.43 26 240 11329 -40.5 -42.3 83 1.8 -40.7 75 14 349.9 350.0 297.0 351.5 0.38 27 227 11704 -43.5 -46.0 76 2.5 -43.7 69 13 350.9 351.0 297.1 352.1 0.27 28 225 11764 -43.7 -50.7 46 7.0 -44.2 68 13 351.5 351.6 297.1 352.2 0.16 29 211 12190 -47.7 -51.9 62 4.2 -47.9 60 13 351.8 351.8 297.1 352.4 0.15 30 208 12284 -48.5 -56.5 39 8.0 -48.8 64 13 352.0 352.0 297.1 352.4 0.09 31 200 12540 -50.7 -57.7 43 7.0 -51.0 75 14 352.5 352.5 297.3 352.8 0.08 32 187 12973 -54.7 -61.7 42 7.0 -54.9 71 20 352.9 352.9 297.3 353.1 0.05 33 179 13251 -56.5 -65.5 31 9.0 -56.7 69 23 354.4 354.4 297.6 354.5 0.03 34 150 14350 -64.7 -77.7 15 13.0 -64.8 80 38 358.6 358.6 298.4 358.7 0.01 35 149 14391 -65.1 -78.1 15 13.0 -65.2 80 38 358.6 358.6 298.4 358.6 0.01 36 124 15489 -72.7 -82.7 21 10.0 -72.8 84 43 364.2 364.2 299.5 364.2 0.00 37 100 16730 -79.7 -85.7 36 6.0 -79.7 95 34 373.7 373.7 301.2 373.8 0.00 38 89 17388 -82.1 -88.1 35 6.0 -82.1 90 26 381.6 381.6 302.5 381.6 0.00 39 86 17583 -75.5 -86.5 16 11.0 -75.5 93 24 398.7 398.7 305.0 398.7 0.00 40 70 18760 -81.1 -90.1 20 9.0 -81.1 65 23 410.9 410.9 306.6 410.9 0.00 41 69 18841 -81.1 -90.1 20 9.0 -81.1 72 22 412.6 412.6 306.8 412.6 0.00 42 67 19008 -78.1 -90.1 13 12.0 -78.1 87 19 422.6 422.6 308.0 422.6 0.00 43 64 19275 -69.1 -90.1 3 21.0 -69.2 110 16 447.9 447.9 310.7 447.9 0.00 44 56 20062 -75.1 -91.1 7 16.0 -75.2 136 10 451.6 451.6 311.0 451.6 0.00 45 53 20382 -73.3 -91.3 5 18.0 -73.4 111 12 463.0 463.0 312.0 463.0 0.00 46 50 20730 -65.7 -90.7 2 25.0 -66.0 85 14 488.7 488.7 314.1 488.7 0.00 47 49 20853 -65.7 -90.7 2 25.0 -66.0 85 15 491.5 491.5 314.3 491.5 0.00 48 48 20978 -66.9 -90.9 2 24.0 -67.1 85 16 491.5 491.5 314.4 491.5 0.00 49 44 21505 -65.9 -91.9 1 26.0 -66.2 85 18 506.4 506.4 315.4 506.4 0.00 50 40 22097 -56.9 -88.9 1 32.0 -57.9 85 16 543.0 543.0 317.7 543.0 0.00 51 36 22763 -58.5 -89.5 1 31.0 -59.5 85 15 555.4 555.4 318.4 555.4 0.00 52 30 23920 -54.7 -86.7 1 32.0 -56.3 55 19 595.5 595.5 320.4 595.6 0.01 53 27 24591 -56.9 -87.9 1 31.0 -58.3 55 19 607.6 607.6 320.9 607.6 0.01 54 26 24831 -55.1 -88.1 1 33.0 -56.9 57 19 619.3 619.3 321.5 619.3 0.01 TRP 89 17388 -82.1 -88.1 35 6.0 -82.1 90 26 381.6 381.6 302.5 381.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5814.00 m Freezing level: 548.15 mb = 5162.34 m = 16936.59 ft Wetbulb zero: 553.37 mb = 5077.79 m = 16659.21 ft Precipitable water: 2.45 inches Sfc-500 mean rel hum: 79.04 % Est. max temperature: 34.18 C = 93.53 F Sfc-Lift cond lev (LCL): 979.86 mb = 256.63 m = 841.95 ft T: 27.49 C 700-500 lapse rate: 4.86 C/km ThetaE index: 31.08 C Layer 1000.0- 802.0 mb Conv cond level (CCL): 915.20 mb = 860.91 m = 2824.46 ft Mean mixing ratio: 19.04 g/kg Conv temperature: 30.78 C = 87.40 F Cap Strength: 0.43 C Lifted Index: -2.64 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.45 C Lifted Index @700 mb: -2.17 C Showalter Index: 1.93 C Risk: Showers probable Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 17.70 C K Index: 30.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 227.40 Risk: None Energy Index: 0.27 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1515.85 J/kg Max Up Vert Vel: 55.06 m/s Conv Inhibition (B-): 0.95 J/kg Cap Strength: 0.40 C Lift Cond Lev (LCL): 923.33 mb = 783.76 m = 2571.35 ft Lev Free Conv (LFC): 908.33 mb = 926.67 m = 3040.21 ft Equ Level (EL): 878.33 mb = 1219.18 m = 3999.90 ft B at Equ Level: 4.80 J/kg Max Parcel Lev (MPL): 818.33 mb = 1830.78 m = 6006.43 ft Wind level data Storm motion: 302 at 17 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 | 122 17 -14.5 8.9 1 1000 76 220 4 2.6 3.1 | 135 17 -11.9 12.0 2 975 305 225 16 11.3 11.3 | 171 20 -3.2 20.2 3 942 610 230 17 13.0 10.9 | 176 20 -1.5 19.9 4 925 768 230 19 14.6 12.2 | 180 21 0.1 21.1 5 910 914 235 20 16.4 11.5 | 185 20 1.9 20.4 6 850 1504 250 20 18.8 6.8 | 195 16 4.3 15.8 7 848 1524 250 20 18.8 6.8 | 195 16 4.3 15.8 8 789 2134 320 9 5.8 -6.9 | 103 9 -8.7 2.0 9 709 3048 270 39 39.0 -0.0 | 250 26 24.5 8.9 10 700 3156 270 40 40.0 -0.0 | 251 27 25.5 8.9 11 658 3658 270 65 65.0 -0.0 | 260 51 50.5 8.9 12 588 4572 310 15 11.5 -9.6 | 77 3 -3.0 -0.7 13 566 4877 345 10 2.6 -9.7 | 86 12 -11.9 -0.7 14 525 5486 315 7 4.9 -4.9 | 113 10 -9.5 4.0 15 500 5890 300 5 4.3 -2.5 | 122 12 -10.1 6.4 16 487 6096 300 5 4.3 -2.5 | 122 12 -10.1 6.4 17 401 7620 95 1 -1.0 0.1 | 120 18 -15.5 9.0 18 400 7630 100 1 -1.0 0.2 | 120 18 -15.5 9.1 19 326 9144 85 18 -17.9 -1.6 | 103 33 -32.4 7.4 20 300 9760 50 13 -10.0 -8.4 | 91 24 -24.4 0.6 21 264 10668 80 17 -16.7 -3.0 | 101 32 -31.2 6.0 22 250 11050 80 14 -13.8 -2.4 | 103 29 -28.3 6.5 23 211 12192 60 13 -11.3 -6.5 | 95 26 -25.7 2.4 24 200 12540 75 14 -13.5 -3.6 | 101 28 -28.0 5.3 25 166 13716 65 30 -27.2 -12.7 | 85 42 -41.7 -3.7 26 150 14350 80 38 -37.4 -6.6 | 93 52 -51.9 2.3 27 129 15240 80 45 -44.3 -7.8 | 91 59 -58.8 1.1 28 105 16459 100 33 -32.5 5.7 | 107 49 -47.0 14.7 29 100 16730 95 34 -33.9 3.0 | 104 50 -48.3 11.9 30 89 17388 90 26 -26.0 0.0 | 102 41 -40.5 8.9 31 76 18288 105 16 -15.5 4.1 | 114 33 -29.9 13.1 32 70 18760 65 23 -20.8 -9.7 | 89 35 -35.3 -0.8 33 58 19812 155 8 -3.4 7.3 | 132 24 -17.9 16.2 34 50 20730 85 14 -13.9 -1.2 | 105 29 -28.4 7.7 35 45 21336 85 18 -17.9 -1.6 | 103 33 -32.4 7.4 36 36 22860 85 15 -14.9 -1.3 | 105 30 -29.4 7.6 37 30 23920 55 19 -15.6 -10.9 | 86 30 -30.0 -2.0 38 27 24384 55 19 -15.6 -10.9 | 86 30 -30.0 -2.0 39 22 25298 70 19 -17.9 -6.5 | 94 32 -32.3 2.4 Wind Parameters Mean winds (0-6000m): 271.7 at 22.7 knts Storm direction: 301.7 at 17.0 knts Shear (0-3000m) pos: 3.1 neg: 7.5 tot: 10.6 10-3/s Storm rel Dir Shear (0-3000m): 130.6 deg Storm rel helicity (0-3000m) pos: 117.1 neg: -51.8 tot: 65.3 m^2/s^2 ave: 21.8 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 14.1 stream: -0.4 10^-3/s Energy-Hel index: 1.11 Bulk Rich Number: 39.93 Bulk Shear: 37.96 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 ------------------------------------------------------------------------------- 500 225 11 159 18| 0.0 17.1 17.1| 78.2 0.0 78.2 156.4 0.96| 17.7 17.0 1000 229 15 171 19| 2.3 8.6 10.8|102.7 0.0 102.7 102.7 0.94| 11.5 10.8 1500 235 17 178 18| 2.6 5.7 8.3|115.6 0.0 115.6 77.1 0.88| 9.2 8.1 2000 243 16 180 17| 4.6 4.3 8.9|117.1 -11.7 105.4 52.7 0.36| 11.4 4.1 2500 251 16 183 14| 3.7 4.7 8.3|117.1 -20.2 96.9 38.7 0.09| 12.5 1.2 3000 258 18 194 13| 3.1 7.5 10.6|117.1 -51.8 65.3 21.8 -0.03| 14.1 -0.4 4000 265 27 227 17| 4.3 8.1 12.4|298.2 -57.5 240.6 60.2 0.11| 16.8 1.8 5000 269 26 231 15| 6.5 6.5 13.0|352.0 -57.5 294.5 58.9 0.19| 18.0 3.4 6000 272 23 225 12| 5.4 5.6 11.0|368.2 -57.5 310.7 51.8 0.22| 15.6 3.4 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250531.12.gif