UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050400.upa.cvt Date: 0000Z 4 MAY 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 4 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 25.0 24.1 95 0.9 24.3 0 0 297.5 300.9 297.3 352.8 19.07 1 1000 72 23.8 23.4 98 0.4 23.5 0 0 297.0 300.3 296.7 350.2 18.41 2 999 81 23.8 23.3 97 0.5 23.5 354 0 297.0 300.3 296.7 350.1 18.32 3 982 232 25.8 23.0 85 2.8 23.8 253 1 300.5 303.9 297.5 354.3 18.30 4 942 599 23.6 20.0 80 3.6 21.1 205 2 301.9 304.8 296.3 348.5 15.82 5 925 759 22.4 20.8 91 1.6 21.3 210 2 302.2 305.3 297.1 352.3 16.95 6 850 1493 18.4 16.3 88 2.1 17.0 50 3 305.4 308.0 296.0 346.9 13.85 7 755 2500 12.0 12.0 100 0.0 12.0 95 9 309.0 311.2 295.4 344.7 11.76 8 713 2980 11.0 7.5 79 3.5 8.8 108 12 313.0 314.8 294.7 341.4 9.17 9 700 3134 10.0 7.3 83 2.7 8.3 110 12 313.6 315.3 294.8 342.1 9.21 10 608 4297 4.8 1.2 77 3.6 2.8 103 10 320.5 321.8 294.9 342.6 6.89 11 515 5636 -2.7 -7.7 68 5.0 -5.1 93 9 327.0 327.8 294.6 340.9 4.16 12 503 5823 -4.1 -5.9 87 1.8 -5.0 91 9 327.5 328.5 295.2 343.8 4.90 13 500 5870 -4.1 -6.4 84 2.3 -5.2 90 9 328.0 329.0 295.3 343.9 4.74 14 486 6094 -4.9 -10.9 63 6.0 -7.5 90 10 329.7 330.4 294.7 341.4 3.43 15 474 6289 -6.3 -9.3 79 3.0 -7.7 87 9 330.4 331.2 295.3 343.9 3.99 16 408 7449 -12.1 -18.1 61 6.0 -14.3 72 3 337.3 337.8 295.6 345.4 2.26 17 400 7600 -13.5 -17.6 71 4.1 -15.0 70 2 337.4 337.9 295.7 346.0 2.40 18 393 7734 -14.9 -17.8 78 2.9 -15.9 65 3 337.3 337.8 295.7 345.9 2.40 19 363 8329 -19.1 -21.2 83 2.1 -19.7 65 4 339.5 339.9 295.8 346.5 1.94 20 314 9392 -26.3 -30.1 70 3.8 -27.1 86 5 343.8 344.0 296.1 347.6 1.00 21 300 9720 -29.1 -32.0 76 2.9 -29.6 115 5 344.4 344.6 296.1 347.7 0.87 22 269 10492 -35.1 -39.0 67 3.9 -35.6 22 1 346.5 346.6 296.3 348.5 0.48 23 250 11000 -38.9 -46.9 43 8.0 -39.6 125 1 348.2 348.3 296.4 349.2 0.22 24 244 11166 -40.3 -49.3 38 9.0 -41.0 138 2 348.6 348.6 296.5 349.3 0.18 25 223 11773 -45.3 -48.8 68 3.5 -45.5 186 7 350.0 350.0 296.8 350.8 0.20 26 220 11863 -45.9 -52.9 45 7.0 -46.3 193 7 350.4 350.4 296.8 350.9 0.13 27 214 12047 -47.7 -51.4 66 3.7 -47.9 208 9 350.4 350.4 296.8 351.0 0.16 28 210 12171 -48.3 -52.8 60 4.5 -48.5 218 10 351.3 351.4 297.0 351.9 0.14 29 200 12490 -51.5 -57.5 49 6.0 -51.7 210 11 351.2 351.2 297.0 351.6 0.08 30 196 12621 -52.9 -58.9 48 6.0 -53.1 202 11 351.0 351.0 296.9 351.3 0.07 31 187 12922 -55.3 -68.3 18 13.0 -55.5 183 10 351.9 351.9 297.1 352.0 0.02 32 173 13413 -59.7 -68.7 30 9.0 -59.8 151 9 352.5 352.5 297.2 352.6 0.02 33 150 14290 -66.9 -76.9 23 10.0 -67.0 125 15 354.8 354.8 297.7 354.9 0.01 34 147 14412 -67.5 -78.5 19 11.0 -67.5 125 16 355.9 355.9 297.9 355.9 0.01 35 128 15230 -74.5 -78.2 56 3.7 -74.5 125 22 357.6 357.6 298.2 357.7 0.01 36 119 15651 -77.9 -81.8 53 3.9 -77.9 103 18 358.9 358.9 298.5 358.9 0.00 37 100 16630 -83.7 -88.7 41 5.0 -83.7 25 15 366.0 366.0 299.8 366.0 0.00 38 96 16855 -85.1 -90.1 40 5.0 -85.1 40 14 367.6 367.6 300.1 367.6 0.00 39 84 17594 -81.1 -87.1 36 6.0 -81.1 84 12 390.0 390.0 303.8 390.0 0.00 40 75 18228 -81.7 -88.7 29 7.0 -81.7 122 10 401.6 401.6 305.4 401.6 0.00 41 73 18381 -78.1 -88.1 18 10.0 -78.1 116 8 412.3 412.3 306.8 412.3 0.00 42 70 18620 -77.5 -88.5 15 11.0 -77.6 95 4 418.6 418.6 307.6 418.6 0.00 43 67 18871 -78.7 -89.7 15 11.0 -78.7 95 4 421.3 421.3 307.9 421.3 0.00 44 64 19135 -74.7 -89.7 8 15.0 -74.7 95 4 435.6 435.6 309.4 435.6 0.00 45 59 19609 -73.9 -89.9 7 16.0 -74.0 95 3 447.6 447.6 310.6 447.7 0.00 46 57 19811 -74.3 -91.3 6 17.0 -74.4 96 3 451.2 451.2 311.0 451.2 0.00 47 50 20590 -66.5 -90.5 2 24.0 -66.8 140 16 486.8 486.8 314.0 486.8 0.00 48 48 20840 -63.1 -90.1 1 27.0 -63.5 138 14 500.6 500.6 315.0 500.6 0.00 49 46 21102 -63.9 -89.9 2 26.0 -64.3 136 11 504.8 504.8 315.3 504.8 0.00 50 38 22285 -60.9 -89.9 1 29.0 -61.6 80 10 540.8 540.8 317.6 540.8 0.00 51 36 22627 -55.1 -87.1 1 32.0 -56.5 61 11 564.2 564.2 318.9 564.3 0.01 52 31 23589 -52.9 -85.9 1 33.0 -54.8 81 13 594.8 594.8 320.4 594.9 0.01 53 30 23800 -54.1 -86.1 1 32.0 -55.8 90 14 597.2 597.2 320.5 597.2 0.01 54 24 25213 -60.1 -89.1 1 29.0 -61.2 80 25 619.1 619.1 321.5 619.1 0.01 55 20 26370 -53.1 -87.1 1 34.0 -55.8 85 40 673.6 673.6 323.6 673.7 0.01 56 18 27054 -50.1 -85.1 1 35.0 -53.8 85 40 703.7 703.7 324.6 703.8 0.02 TRP 96 16855 -85.1 -90.1 40 5.0 -85.1 40 14 367.6 367.6 300.1 367.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 548.48 mb = 5153.83 m = 16908.68 ft Wetbulb zero: 575.15 mb = 4745.05 m = 15567.57 ft Precipitable water: 2.45 inches Sfc-500 mean rel hum: 83.37 % Est. max temperature: 32.61 C = 90.70 F Sfc-Lift cond lev (LCL): 995.34 mb = 113.22 m = 371.45 ft T: 24.23 C 700-500 lapse rate: 5.15 C/km ThetaE index: 10.91 C Layer 850.0- 700.0 mb Conv cond level (CCL): 886.04 mb = 1132.59 m = 3715.79 ft Mean mixing ratio: 17.20 g/kg Conv temperature: 31.39 C = 88.50 F Cap Strength: 1.35 C Lifted Index: -1.66 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.52 C Lifted Index @700 mb: -0.98 C Showalter Index: -0.02 C Risk: Thunderstorms probable Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 22.50 C Cross Totals Index: 20.40 C K Index: 36.10 Risk: > 80 % chance of thunderstorms Sweat Index: 210.60 Risk: None Energy Index: -0.65 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 457.51 J/kg Max Up Vert Vel: 30.25 m/s Conv Inhibition (B-): 31.07 J/kg Cap Strength: 1.34 C Lift Cond Lev (LCL): 925.46 mb = 754.63 m = 2475.78 ft Lev Free Conv (LFC): 830.46 mb = 1690.64 m = 5546.65 ft Equ Level (EL): 210.46 mb = 12156.58 m = 39883.30 ft B at Equ Level: 455.10 J/kg Max Parcel Lev (MPL): 110.46 mb = 16069.86 m = 52722.00 ft Wind level data Storm motion: 131 at 5 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 | 311 5 4.1 -3.6 1 1000 72 0 0 -0.0 -0.0 | 311 5 4.1 -3.6 2 974 305 205 2 0.8 1.8 | 289 5 4.9 -1.7 3 941 610 205 2 0.8 1.8 | 289 5 4.9 -1.7 4 925 759 210 2 1.0 1.7 | 290 5 5.1 -1.8 5 909 914 210 2 1.0 1.7 | 290 5 5.1 -1.8 6 850 1493 50 3 -2.3 -1.9 | 342 6 1.8 -5.5 7 847 1524 50 3 -2.3 -1.9 | 342 6 1.8 -5.5 8 788 2134 85 6 -6.0 -0.5 | 25 4 -1.9 -4.1 9 707 3048 110 13 -12.2 4.4 | 96 8 -8.1 0.9 10 700 3134 110 12 -11.3 4.1 | 94 7 -7.2 0.5 11 656 3658 120 9 -7.8 4.5 | 104 4 -3.7 0.9 12 587 4572 95 10 -10.0 0.9 | 65 6 -5.9 -2.7 13 565 4877 85 9 -9.0 -0.8 | 48 7 -4.9 -4.3 14 524 5486 95 9 -9.0 0.8 | 60 6 -4.9 -2.8 15 500 5870 90 9 -9.0 0.0 | 54 6 -4.9 -3.6 16 486 6096 90 10 -10.0 0.0 | 59 7 -5.9 -3.6 17 400 7600 70 2 -1.9 -0.7 | 333 5 2.2 -4.2 18 399 7620 65 3 -2.7 -1.3 | 344 5 1.4 -4.8 19 324 9144 65 5 -4.5 -2.1 | 5 6 -0.5 -5.7 20 300 9720 115 5 -4.5 2.1 | 17 2 -0.5 -1.4 21 262 10668 0 0 -0.0 -0.0 | 311 5 4.1 -3.6 22 250 11000 125 1 -0.8 0.6 | 312 4 3.3 -3.0 23 209 12192 220 10 6.4 7.7 | 249 11 10.5 4.1 24 200 12490 210 11 5.5 9.5 | 238 11 9.6 6.0 25 164 13716 130 8 -6.1 5.1 | 128 3 -2.0 1.6 26 150 14290 125 15 -12.3 8.6 | 122 10 -8.2 5.0 27 127 15240 125 22 -18.0 12.6 | 123 17 -13.9 9.1 28 103 16459 55 9 -7.4 -5.2 | 21 9 -3.3 -8.7 29 100 16630 25 15 -6.3 -13.6 | 8 17 -2.3 -17.1 30 96 16855 40 14 -9.0 -10.7 | 19 15 -4.9 -14.3 31 74 18288 125 10 -8.2 5.7 | 118 5 -4.1 2.2 32 70 18620 95 4 -4.0 0.3 | 358 3 0.1 -3.2 33 57 19812 95 3 -3.0 0.3 | 342 3 1.1 -3.3 34 50 20590 140 16 -10.3 12.3 | 145 11 -6.2 8.7 35 44 21336 135 9 -6.4 6.4 | 141 4 -2.3 2.8 36 35 22860 50 11 -8.4 -7.1 | 22 11 -4.3 -10.6 37 30 23800 90 14 -14.0 0.0 | 70 11 -9.9 -3.6 38 27 24384 85 16 -15.9 -1.4 | 67 13 -11.9 -4.9 39 22 25908 75 33 -31.9 -8.5 | 66 30 -27.8 -12.1 40 20 26370 85 40 -39.8 -3.5 | 79 36 -35.8 -7.0 41 15 27432 85 39 -38.9 -3.4 | 79 35 -34.8 -7.0 Wind Parameters Mean winds (0-6000m): 101.1 at 7.2 knts Storm direction: 131.1 at 5.4 knts Shear (0-3000m) pos: 2.0 neg: 0.5 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 142.7 deg Storm rel helicity (0-3000m) pos: 19.0 neg: -3.8 tot: 15.2 m^2/s^2 ave: 5.1 10^-3 m/s^2 rel: 0.52 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 2.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 59.64 Bulk Shear: 7.67 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 ------------------------------------------------------------------------------- 500 205 1 298 5| 0.0 2.1 2.1| 0.2 -3.6 -3.4 -6.8 -0.69| 3.3 -2.3 1000 206 2 293 5| 0.0 1.1 1.1| 0.2 -3.7 -3.5 -3.5 -0.54| 2.2 -1.2 1500 191 2 290 5| 0.0 1.0 1.0| 3.0 -3.8 -0.8 -0.5 0.08| 3.6 0.3 2000 104 3 331 3| 0.8 0.8 1.6| 7.2 -3.8 3.4 1.7 0.28| 3.5 1.0 2500 95 3 348 3| 1.5 0.6 2.1| 12.2 -3.8 8.4 3.3 0.44| 3.6 1.6 3000 101 5 11 3| 2.0 0.5 2.5| 19.0 -3.8 15.2 5.1 0.52| 3.8 2.0 4000 108 6 46 2| 1.2 0.5 1.7| 20.5 -5.2 15.3 3.8 0.41| 3.6 1.5 5000 104 7 53 3| 0.9 0.8 1.7| 20.9 -11.4 9.5 1.9 0.23| 3.3 0.8 6000 101 7 54 4| 0.9 0.7 1.6| 22.9 -12.3 10.6 1.8 0.24| 3.0 0.7 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20250504.00.gif