UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041512.upa.cvt Date: 1200Z 15 APR 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:1200Z 15 APR 25 Station: VTUN WMO ident: 48431 Latitude: 14.97 Longitude: 102.83 Elevation: 181.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 52 SFC 985 181 32.4 20.4 49 12.0 23.7 140 2 306.9 309.8 297.4 353.5 15.50 2 925 751 27.2 18.2 58 9.0 20.8 130 1 307.1 309.8 296.7 350.4 14.36 3 859 1401 21.2 17.0 77 4.2 18.2 70 1 307.4 310.1 296.8 350.7 14.34 4 850 1493 20.6 16.5 77 4.1 17.8 60 1 307.7 310.4 296.7 350.1 14.03 5 700 3145 10.4 7.1 80 3.3 8.3 45 3 314.0 315.7 294.8 342.3 9.08 6 687 3301 9.4 7.0 85 2.4 7.9 49 3 314.6 316.3 295.1 343.2 9.19 7 535 5342 -1.9 -6.3 72 4.4 -4.0 142 5 324.4 325.3 294.1 339.1 4.47 8 530 5417 -2.1 -9.1 59 7.0 -5.3 144 5 325.0 325.7 293.6 337.1 3.62 9 500 5880 -4.7 -8.9 72 4.2 -6.6 150 5 327.3 328.1 294.4 340.4 3.90 10 478 6233 -6.1 -9.3 78 3.2 -7.5 146 6 329.8 330.6 295.1 343.2 3.96 11 463 6482 -6.9 -12.9 62 6.0 -9.4 149 5 331.8 332.5 294.9 342.4 3.06 12 456 6601 -6.7 -16.7 45 10.0 -10.5 150 5 333.5 334.0 294.7 341.5 2.27 13 434 6985 -9.3 -24.3 28 15.0 -13.9 154 5 335.0 335.2 294.2 339.5 1.23 14 428 7092 -10.1 -17.1 57 7.0 -12.7 155 5 335.3 335.8 295.2 343.6 2.34 15 411 7403 -12.1 -25.1 33 13.0 -15.9 158 4 336.6 336.9 294.6 341.1 1.21 16 400 7610 -13.9 -23.9 43 10.0 -16.9 160 4 336.9 337.2 294.8 342.0 1.39 17 378 8037 -17.1 -19.8 79 2.7 -18.0 103 3 338.2 338.6 295.7 345.7 2.10 18 362 8360 -18.9 -25.9 54 7.0 -20.8 67 4 340.0 340.3 295.4 344.7 1.28 19 306 9588 -28.3 -30.5 81 2.2 -28.7 245 24 343.5 343.8 296.0 347.3 0.99 20 302 9682 -28.3 -31.2 76 2.9 -28.9 225 27 344.8 345.0 296.3 348.4 0.94 21 300 9730 -28.9 -32.2 73 3.3 -29.5 215 29 344.6 344.8 296.2 347.9 0.86 22 287 10046 -31.3 -36.0 63 4.7 -32.0 217 34 345.6 345.7 296.2 348.0 0.62 23 279 10246 -33.1 -36.0 75 2.9 -33.6 218 38 345.8 346.0 296.3 348.3 0.63 24 277 10297 -33.5 -37.7 66 4.2 -34.1 218 39 346.0 346.1 296.2 348.1 0.54 25 273 10399 -34.5 -37.9 71 3.4 -35.0 219 40 346.0 346.1 296.2 348.1 0.53 26 263 10659 -35.9 -39.7 68 3.8 -36.4 220 45 347.6 347.7 296.5 349.5 0.46 27 250 11010 -38.9 -42.8 66 3.9 -39.3 225 43 348.2 348.3 296.5 349.6 0.35 28 200 12500 -50.9 -55.4 59 4.5 -51.1 205 32 352.2 352.2 297.2 352.6 0.10 29 160 13907 -63.3 -67.7 55 4.4 -63.4 170 55 354.4 354.4 297.6 354.5 0.03 30 153 14180 -65.0 -69.4 54 4.4 -65.0 110 106 356.1 356.2 298.0 356.2 0.02 31 150 14300 -65.7 -70.1 54 4.4 -65.7 110 89 356.9 356.9 298.1 357.0 0.02 32 145 14506 -66.3 -73.3 37 7.0 -66.4 105 77 359.3 359.3 298.6 359.4 0.01 33 110 16125 -79.7 -84.7 43 5.0 -79.7 50 13 363.7 363.7 299.4 363.7 0.00 34 107 16282 -79.7 -84.7 43 5.0 -79.7 44 9 366.6 366.6 299.9 366.6 0.00 TRP WND 153 14180 -65.0 -69.4 54 4.4 -65.0 110 106 356.1 356.2 298.0 356.2 0.02 Sounding variables and indices 1000-500 mb thick: 5828.00 m Freezing level: 560.56 mb = 4999.04 m = 16400.84 ft Wetbulb zero: 586.16 mb = 4596.89 m = 15081.47 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 73.78 % Est. max temperature: 33.83 C = 92.90 F Sfc-Lift cond lev (LCL): 828.50 mb = 1710.95 m = 5613.28 ft T: 19.25 C 700-500 lapse rate: 5.52 C/km ThetaE index: 8.42 C Layer 850.0- 687.0 mb Conv cond level (CCL): 775.59 mb = 2272.54 m = 7455.74 ft Mean mixing ratio: 14.69 g/kg Conv temperature: 36.23 C = 97.21 F Cap Strength: 1.86 C Lifted Index: -2.26 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.26 C Lifted Index @700 mb: -0.58 C Showalter Index: -1.79 C Risk: Thunderstorms probable Total Totals Index: 46.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.30 C Cross Totals Index: 21.20 C K Index: 38.50 Risk: > 80 % chance of thunderstorms Sweat Index: 205.00 Risk: None Energy Index: -1.91 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 432.55 J/kg Max Up Vert Vel: 29.41 m/s Conv Inhibition (B-): 50.15 J/kg Cap Strength: 1.86 C Lift Cond Lev (LCL): 816.21 mb = 1838.16 m = 6030.64 ft Lev Free Conv (LFC): 721.21 mb = 2891.03 m = 9484.89 ft Equ Level (EL): 221.21 mb = 11826.99 m = 38802.00 ft B at Equ Level: 430.46 J/kg Max Parcel Lev (MPL): 121.21 mb = 15556.38 m = 51037.37 ft Wind level data Storm motion: 139 at 2 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 ---------------------------------------------------------- 0 985 181 140 2 -1.3 1.5 | 271 0 0.1 -0.0 1 940 610 140 1 -0.6 0.8 | 317 1 0.7 -0.8 2 925 751 130 1 -0.8 0.6 | 327 1 0.6 -0.9 3 908 914 125 1 -0.8 0.6 | 331 1 0.5 -1.0 4 850 1493 60 1 -0.9 -0.5 | 347 2 0.5 -2.0 5 847 1524 60 1 -0.9 -0.5 | 347 2 0.5 -2.0 6 788 2134 65 2 -1.8 -0.8 | 11 2 -0.5 -2.4 7 708 3048 40 3 -1.9 -2.3 | 9 4 -0.6 -3.8 8 700 3145 45 3 -2.1 -2.1 | 12 4 -0.8 -3.7 9 657 3658 60 2 -1.7 -1.0 | 9 3 -0.4 -2.5 10 587 4572 115 3 -2.7 1.3 | 79 1 -1.4 -0.3 11 566 4877 135 4 -2.8 2.8 | 131 2 -1.5 1.3 12 525 5486 145 5 -2.9 4.1 | 149 3 -1.5 2.6 13 500 5880 150 5 -2.5 4.3 | 158 3 -1.2 2.8 14 486 6096 145 6 -3.4 4.9 | 148 4 -2.1 3.4 15 400 7610 160 4 -1.4 3.8 | 179 2 -0.0 2.2 16 399 7620 150 2 -1.0 1.7 | 240 0 0.3 0.2 17 325 9144 335 7 3.0 -6.3 | 331 9 4.3 -7.9 18 300 9730 215 29 16.6 23.8 | 219 29 18.0 22.2 19 262 10668 220 45 28.9 34.5 | 223 45 30.3 32.9 20 250 11010 225 43 30.4 30.4 | 228 43 31.8 28.9 21 209 12192 235 40 32.8 22.9 | 238 40 34.1 21.4 22 200 12500 205 32 13.5 29.0 | 208 31 14.9 27.5 23 165 13716 210 21 10.5 18.2 | 215 20 11.8 16.7 24 153 14180 110 106 -99.6 36.3 | 109 104 -98.3 34.7 25 150 14300 110 89 -83.6 30.4 | 109 87 -82.3 28.9 26 128 15240 85 32 -31.9 -2.8 | 82 31 -30.5 -4.3 27 105 16459 40 7 -4.5 -5.4 | 25 8 -3.2 -6.9 Wind Parameters Mean winds (0-6000m): 108.7 at 2.7 knts Storm direction: 138.7 at 2.0 knts Shear (0-3000m) pos: 0.1 neg: 0.6 tot: 0.7 10-3/s Storm rel Dir Shear (0-3000m): 100.9 deg Storm rel helicity (0-3000m) pos: 1.0 neg: -0.2 tot: 0.8 m^2/s^2 ave: 0.3 10^-3 m/s^2 rel: 0.35 Storm rel vorticity (0-3000m) horiz: 0.9 stream: 0.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1176.05 Bulk Shear: 0.37 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 ------------------------------------------------------------------------------- 500 140 1 316 1| 0.0 1.0 1.0| 0.0 0.0 0.0 0.1 0.25| 1.1 0.3 1000 131 1 329 1| 0.0 0.8 0.8| 0.2 0.0 0.2 0.2 0.43| 0.9 0.4 1500 114 1 344 1| 0.0 0.7 0.7| 0.3 -0.0 0.3 0.2 0.39| 0.9 0.3 2000 96 1 357 1| 0.2 0.6 0.8| 0.8 -0.0 0.8 0.4 0.51| 0.9 0.4 2500 82 1 4 2| 0.2 0.6 0.8| 0.8 -0.0 0.7 0.3 0.41| 0.9 0.4 3000 69 2 7 2| 0.1 0.6 0.7| 1.0 -0.2 0.8 0.3 0.35| 0.9 0.3 4000 67 2 10 2| 0.3 0.4 0.7| 1.7 -0.3 1.4 0.4 0.38| 1.0 0.4 5000 87 2 28 2| 0.6 0.3 0.9| 3.0 -0.3 2.7 0.5 0.53| 1.1 0.6 6000 109 3 62 1| 0.5 0.2 0.8| 3.7 -0.7 2.9 0.5 0.47| 1.1 0.5 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20250415.12.gif