UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050300.upa.cvt Date: 0000Z 3 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 3 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 26.0 25.0 94 1.0 25.3 0 0 298.5 302.1 298.1 357.3 20.16 1 1000 76 25.8 24.0 90 1.8 24.5 175 2 299.0 302.4 297.7 354.8 19.11 2 975 300 25.8 21.8 79 4.0 22.9 175 5 301.1 304.3 297.0 351.4 17.10 3 925 763 22.8 20.3 86 2.5 21.0 170 7 302.6 305.6 296.9 351.2 16.42 4 879 1208 21.0 18.2 84 2.8 19.1 157 5 305.2 308.0 296.7 350.4 15.13 5 850 1498 19.0 17.8 93 1.2 18.2 150 4 306.0 308.9 297.0 351.8 15.26 6 778 2254 13.8 13.7 99 0.1 13.7 115 4 308.3 310.7 296.0 347.0 12.78 7 700 3143 10.2 7.7 84 2.5 8.6 120 6 313.8 315.6 295.1 343.2 9.47 8 673 3471 9.0 5.1 77 3.9 6.6 111 5 316.0 317.6 294.7 341.8 8.22 9 566 4884 -0.7 -0.9 99 0.2 -0.8 68 3 320.6 321.9 294.6 341.0 6.34 10 537 5304 -2.9 -2.9 100 0.0 -2.9 90 3 322.8 324.0 294.7 341.6 5.76 11 518 5590 -4.1 -5.5 90 1.4 -4.8 103 4 324.7 325.7 294.6 340.9 4.91 12 513 5667 -3.7 -7.1 77 3.4 -5.3 105 5 326.1 327.0 294.5 340.7 4.38 13 500 5870 -4.7 -6.6 87 1.9 -5.6 110 7 327.3 328.2 295.0 342.9 4.67 14 471 6337 -8.3 -8.8 96 0.5 -8.5 108 8 328.5 329.3 294.9 342.5 4.18 15 467 6403 -7.7 -11.3 75 3.6 -9.2 109 9 330.0 330.7 294.7 341.8 3.45 16 426 7111 -12.5 -13.0 96 0.5 -12.7 119 10 332.7 333.4 295.3 344.1 3.30 17 400 7590 -15.1 -16.5 89 1.4 -15.6 125 11 335.4 335.9 295.4 344.6 2.63 18 396 7666 -15.5 -17.1 88 1.6 -16.1 124 11 335.8 336.3 295.4 344.7 2.53 19 390 7781 -15.9 -20.9 65 5.0 -17.5 123 11 336.8 337.1 295.1 343.4 1.85 20 380 7976 -17.3 -19.1 86 1.8 -17.9 120 10 337.4 337.9 295.6 345.3 2.22 21 357 8441 -20.3 -25.3 64 5.0 -21.7 114 9 339.5 339.8 295.4 344.5 1.37 22 333 8954 -22.7 -26.9 69 4.2 -23.8 108 8 343.0 343.3 296.1 347.7 1.27 23 300 9710 -28.9 -32.6 70 3.7 -29.6 115 5 344.6 344.8 296.1 347.8 0.82 24 293 9879 -30.5 -33.1 78 2.6 -31.0 123 5 344.7 344.9 296.1 347.8 0.80 25 264 10613 -35.3 -41.3 54 6.0 -36.0 157 3 348.1 348.2 296.5 349.7 0.39 26 250 10990 -38.7 -43.7 59 5.0 -39.2 265 4 348.5 348.6 296.6 349.8 0.32 27 200 12480 -51.7 -59.7 38 8.0 -52.0 275 5 350.9 350.9 296.9 351.2 0.06 28 194 12677 -53.7 -61.7 37 8.0 -53.9 289 5 350.8 350.8 296.8 351.0 0.05 29 167 13623 -61.7 -66.7 51 5.0 -61.8 357 4 352.8 352.8 297.3 352.9 0.03 30 164 13735 -62.5 -66.6 58 4.1 -62.6 6 4 353.3 353.3 297.4 353.4 0.03 31 150 14280 -67.1 -72.1 49 5.0 -67.1 80 5 354.5 354.5 297.6 354.6 0.02 32 132 15038 -73.3 -80.3 34 7.0 -73.3 99 6 356.6 356.6 298.0 356.7 0.00 33 123 15447 -76.3 -82.3 38 6.0 -76.3 107 6 358.4 358.4 298.4 358.5 0.00 34 100 16620 -82.1 -86.1 50 4.0 -82.1 0 0 369.1 369.1 300.4 369.1 0.00 35 88 17329 -85.7 -88.6 59 2.9 -85.7 38 7 375.6 375.6 301.5 375.6 0.00 36 74 18292 -81.1 -88.1 30 7.0 -81.1 91 16 404.4 404.4 305.8 404.4 0.00 37 71 18527 -76.1 -85.1 23 9.0 -76.2 97 16 419.9 419.9 307.7 419.9 0.00 38 71 18527 -76.3 -85.3 23 9.0 -76.3 97 16 419.4 419.4 307.6 419.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5794.00 m Freezing level: 573.72 mb = 4782.25 m = 15689.60 ft Wetbulb zero: 577.51 mb = 4719.89 m = 15485.01 ft Precipitable water: 2.53 inches Sfc-500 mean rel hum: 89.26 % Est. max temperature: 33.36 C = 92.05 F Sfc-Lift cond lev (LCL): 993.95 mb = 129.70 m = 425.51 ft T: 25.80 C 700-500 lapse rate: 5.46 C/km ThetaE index: 10.81 C Layer 778.0- 537.0 mb Conv cond level (CCL): 863.59 mb = 1360.65 m = 4464.01 ft Mean mixing ratio: 17.21 g/kg Conv temperature: 33.20 C = 91.76 F Cap Strength: 1.59 C Lifted Index: -2.49 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.67 C Lifted Index @700 mb: -0.95 C Showalter Index: -2.38 C Risk: Severe thunderstorms possible Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 22.50 C K Index: 39.00 Risk: > 80 % chance of thunderstorms Sweat Index: 228.60 Risk: None Energy Index: -1.84 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 767.31 J/kg Max Up Vert Vel: 39.17 m/s Conv Inhibition (B-): 44.08 J/kg Cap Strength: 1.58 C Lift Cond Lev (LCL): 918.00 mb = 829.20 m = 2720.44 ft Lev Free Conv (LFC): 813.00 mb = 1878.33 m = 6162.42 ft Equ Level (EL): 173.00 mb = 13400.15 m = 43963.20 ft B at Equ Level: 762.46 J/kg Max Parcel Lev (MPL): 93.00 mb = 17022.22 m = 55846.50 ft Wind level data Storm motion: 152 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 | 332 3 1.6 -2.9 1 1000 76 175 2 -0.2 2.0 | 305 2 1.4 -1.0 2 974 305 175 5 -0.4 5.0 | 209 2 1.1 2.0 3 941 610 170 7 -1.2 6.9 | 185 4 0.3 3.9 4 925 763 170 7 -1.2 6.9 | 185 4 0.3 3.9 5 909 914 165 6 -1.6 5.8 | 180 3 0.0 2.8 6 850 1498 150 4 -2.0 3.5 | 140 1 -0.4 0.5 7 847 1524 150 4 -2.0 3.5 | 140 1 -0.4 0.5 8 789 2134 115 4 -3.6 1.7 | 59 2 -2.1 -1.3 9 708 3048 115 6 -5.4 2.5 | 84 4 -3.9 -0.4 10 700 3143 120 6 -5.2 3.0 | 91 4 -3.6 0.1 11 657 3658 105 4 -3.9 1.0 | 50 3 -2.3 -1.9 12 587 4572 15 3 -0.8 -2.9 | 352 6 0.8 -5.8 13 565 4877 70 3 -2.8 -1.0 | 18 4 -1.3 -4.0 14 524 5486 100 3 -3.0 0.5 | 30 3 -1.4 -2.4 15 500 5870 110 7 -6.6 2.4 | 84 5 -5.0 -0.6 16 486 6096 105 8 -7.7 2.1 | 82 6 -6.2 -0.9 17 400 7590 125 11 -9.0 6.3 | 114 8 -7.4 3.4 18 398 7620 125 11 -9.0 6.3 | 114 8 -7.4 3.4 19 324 9144 105 7 -6.8 1.8 | 78 5 -5.2 -1.1 20 300 9710 115 5 -4.5 2.1 | 74 3 -3.0 -0.8 21 262 10668 160 3 -1.0 2.8 | 284 1 0.5 -0.1 22 250 10990 265 4 4.0 0.3 | 295 6 5.5 -2.6 23 209 12192 280 4 3.9 -0.7 | 304 7 5.5 -3.6 24 200 12480 275 5 5.0 -0.4 | 297 7 6.5 -3.4 25 164 13716 5 4 -0.3 -4.0 | 350 7 1.2 -6.9 26 150 14280 80 5 -4.9 -0.9 | 41 5 -3.4 -3.8 27 127 15240 105 6 -5.8 1.6 | 72 4 -4.2 -1.4 28 103 16459 115 4 -3.6 1.7 | 59 2 -2.1 -1.3 29 100 16620 0 0 -0.0 -0.0 | 332 3 1.6 -2.9 30 73 18288 95 17 -16.9 1.5 | 85 15 -15.4 -1.5 31 65 18898 105 12 -11.6 3.1 | 91 10 -10.0 0.2 Wind Parameters Mean winds (0-6000m): 122.1 at 4.5 knts Storm direction: 152.1 at 3.3 knts Shear (0-3000m) pos: 1.1 neg: 1.0 tot: 2.1 10-3/s Storm rel Dir Shear (0-3000m): 111.1 deg Storm rel helicity (0-3000m) pos: 1.0 neg: -4.0 tot: -3.0 m^2/s^2 ave: -1.0 10^-3 m/s^2 rel: -0.46 Storm rel vorticity (0-3000m) horiz: 2.6 stream: -1.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 418.53 Bulk Shear: 1.83 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 ------------------------------------------------------------------------------- 500 174 4 228 2| 6.5 0.0 6.5| 0.0 -2.4 -2.4 -4.7 -0.75| 6.7 -5.0 1000 171 5 197 2| 3.2 0.6 3.8| 0.0 -3.1 -3.1 -3.1 -0.65| 4.5 -2.9 1500 167 5 190 2| 2.2 1.0 3.2| 0.0 -3.4 -3.4 -2.3 -0.61| 3.7 -2.2 2000 160 5 178 2| 1.6 1.2 2.9| 0.0 -3.8 -3.8 -1.9 -0.62| 3.3 -2.0 2500 153 5 154 1| 1.3 1.1 2.4| 0.4 -4.0 -3.6 -1.4 -0.54| 2.9 -1.6 3000 145 5 131 2| 1.1 1.0 2.1| 1.0 -4.0 -3.0 -1.0 -0.46| 2.6 -1.2 4000 136 5 105 2| 0.8 1.0 1.8| 1.3 -7.5 -6.2 -1.6 -0.52| 2.6 -1.3 5000 127 4 83 2| 0.9 0.9 1.8| 4.1 -11.3 -7.1 -1.4 -0.42| 2.7 -1.1 6000 122 4 75 2| 1.1 0.8 1.9| 7.9 -11.4 -3.4 -0.6 -0.22| 2.7 -0.6 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250503.00.gif