UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042412.upa.cvt Date: 1200Z 24 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 24 APR 25 Station: VVNB WMO ident: 48820 Latitude: 21.02 Longitude: 105.80 Elevation: 6.00 ------------------------------------------------------------------------------- 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 1004 6 28.0 24.4 81 3.6 25.3 105 7 300.8 304.4 298.4 358.3 19.51 1 1000 45 28.0 24.4 81 3.6 25.3 105 7 301.1 304.7 298.5 358.9 19.59 2 960 407 24.6 23.4 93 1.2 23.8 100 7 301.2 304.8 298.3 357.9 19.21 3 947 528 25.8 21.6 78 4.2 22.8 98 7 303.6 306.9 297.8 355.4 17.40 4 928 706 24.4 21.4 83 3.0 22.2 95 7 304.0 307.2 298.0 356.3 17.55 5 925 735 24.6 21.2 81 3.4 22.1 95 7 304.5 307.7 298.0 356.3 17.39 6 888 1093 22.8 20.3 86 2.5 21.0 158 10 306.2 309.4 298.2 357.6 17.13 7 877 1203 25.0 18.0 65 7.0 20.0 177 11 309.6 312.4 297.7 355.1 14.97 8 861 1365 24.6 15.6 57 9.0 18.4 205 12 310.8 313.2 296.8 350.7 13.06 9 850 1478 23.8 16.8 65 7.0 18.9 225 13 311.1 313.8 297.7 354.9 14.31 10 730 2789 14.0 9.6 75 4.4 11.2 272 18 314.2 316.2 295.8 346.3 10.34 11 717 2941 14.2 5.2 55 9.0 8.8 278 18 316.0 317.5 294.4 340.5 7.76 12 700 3144 12.6 3.6 54 9.0 7.3 285 19 316.4 317.8 294.0 338.9 7.10 13 666 3560 10.2 -0.8 46 11.0 4.2 285 20 318.3 319.3 293.2 335.7 5.42 14 543 5220 -2.9 -6.0 79 3.1 -4.4 285 25 321.8 322.7 293.4 336.6 4.50 15 523 5516 -4.5 -10.5 63 6.0 -7.1 285 26 323.4 324.0 292.9 334.3 3.29 16 500 5870 -6.1 -8.7 82 2.6 -7.3 285 27 325.6 326.4 294.0 338.8 3.97 17 492 5996 -6.7 -8.9 84 2.2 -7.7 284 27 326.4 327.2 294.2 339.6 3.97 18 471 6336 -8.7 -9.9 91 1.2 -9.2 280 26 328.0 328.8 294.6 340.9 3.83 19 408 7440 -14.1 -18.3 70 4.2 -15.6 267 23 334.8 335.2 295.0 342.6 2.22 20 400 7590 -15.1 -18.7 74 3.6 -16.3 265 23 335.4 335.8 295.1 343.1 2.19 21 354 8504 -20.9 -23.0 83 2.1 -21.5 273 24 339.5 339.8 295.7 345.7 1.70 22 339 8823 -22.5 -28.5 58 6.0 -23.9 277 24 341.5 341.8 295.6 345.6 1.08 23 332 8976 -23.3 -42.3 16 19.0 -26.1 278 24 342.5 342.5 295.2 343.6 0.28 24 331 8999 -23.5 -47.5 9 24.0 -26.6 278 24 342.5 342.5 295.1 343.1 0.16 25 328 9065 -24.1 -33.1 43 9.0 -25.9 279 24 342.6 342.7 295.6 345.3 0.72 26 321 9222 -25.5 -32.5 52 7.0 -26.9 280 25 342.8 342.9 295.7 345.7 0.78 27 319 9268 -25.7 -33.7 47 8.0 -27.2 281 25 343.1 343.2 295.7 345.8 0.70 28 318 9290 -25.7 -47.7 11 22.0 -28.3 281 25 343.4 343.4 295.3 344.1 0.16 29 308 9521 -27.7 -46.7 15 19.0 -29.9 283 25 343.7 343.8 295.4 344.5 0.19 30 305 9592 -28.3 -37.3 42 9.0 -29.7 284 25 343.9 344.0 295.7 345.9 0.51 31 300 9710 -29.1 -44.1 22 15.0 -30.9 285 25 344.4 344.4 295.6 345.4 0.25 32 298 9758 -29.5 -47.5 16 18.0 -31.4 285 25 344.5 344.5 295.6 345.2 0.18 33 294 9853 -30.3 -44.3 24 14.0 -32.0 284 24 344.7 344.7 295.7 345.7 0.25 34 290 9950 -31.3 -33.7 79 2.4 -31.7 284 24 344.6 344.7 296.1 347.5 0.77 35 285 10073 -32.3 -34.1 84 1.8 -32.6 284 23 344.9 345.0 296.1 347.8 0.75 36 277 10272 -33.7 -36.8 74 3.1 -34.1 283 22 345.7 345.8 296.2 348.0 0.59 37 273 10374 -34.5 -44.5 36 10.0 -35.5 282 22 346.0 346.0 296.0 347.0 0.27 38 271 10425 -35.1 -42.1 49 7.0 -35.9 282 22 345.8 345.9 296.0 347.2 0.35 39 270 10450 -35.1 -78.1 0 43.0 -36.7 282 22 346.2 346.2 295.8 346.2 0.00 40 265 10580 -36.3 -48.3 28 12.0 -37.4 282 21 346.3 346.3 296.0 347.0 0.18 41 262 10659 -36.9 -62.9 5 26.0 -38.2 281 21 346.5 346.5 295.9 346.7 0.03 42 259 10738 -37.7 -51.7 22 14.0 -38.7 281 20 346.5 346.5 296.0 347.0 0.13 43 257 10791 -37.9 -69.9 2 32.0 -39.2 281 20 347.0 347.0 296.0 347.0 0.01 44 255 10845 -38.3 -53.3 19 15.0 -39.3 281 20 347.2 347.2 296.1 347.6 0.11 45 254 10872 -38.7 -42.5 67 3.8 -39.1 280 20 347.0 347.0 296.3 348.4 0.36 46 252 10926 -39.1 -42.6 69 3.5 -39.5 280 19 347.1 347.2 296.3 348.6 0.36 47 250 10980 -39.5 -43.6 65 4.1 -39.9 280 19 347.3 347.4 296.3 348.6 0.32 48 228 11605 -44.5 -45.7 88 1.2 -44.6 276 21 349.0 349.0 296.7 350.1 0.28 49 200 12470 -51.5 -53.7 77 2.2 -51.6 270 23 351.2 351.2 297.0 351.8 0.13 50 199 12503 -51.7 -54.1 75 2.4 -51.8 270 23 351.4 351.4 297.0 351.9 0.12 51 195 12634 -52.5 -57.1 57 4.6 -52.7 270 22 352.2 352.2 297.2 352.5 0.09 52 188 12869 -54.7 -57.5 71 2.8 -54.8 270 21 352.3 352.3 297.2 352.7 0.09 53 185 12972 -55.5 -62.5 41 7.0 -55.6 270 21 352.7 352.7 297.3 352.9 0.05 54 171 13469 -58.9 -69.9 23 11.0 -59.0 270 19 355.0 355.0 297.7 355.1 0.02 55 161 13845 -61.3 -66.0 54 4.7 -61.4 270 17 357.2 357.2 298.2 357.3 0.03 56 150 14280 -64.9 -69.9 50 5.0 -65.0 270 15 358.3 358.3 298.4 358.4 0.02 57 142 14612 -67.5 -72.5 49 5.0 -67.5 263 15 359.4 359.4 298.6 359.5 0.01 58 116 15808 -75.1 -82.1 33 7.0 -75.1 238 16 366.7 366.7 299.9 366.7 0.00 59 111 16064 -73.7 -83.7 20 10.0 -73.7 233 16 374.0 374.0 301.2 374.0 0.00 60 100 16670 -76.3 -86.3 19 10.0 -76.3 220 17 380.3 380.3 302.3 380.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5825.00 m Freezing level: 570.23 mb = 4852.20 m = 15919.11 ft Wetbulb zero: 605.47 mb = 4334.49 m = 14220.58 ft Precipitable water: 2.31 inches Sfc-500 mean rel hum: 68.17 % Est. max temperature: 38.17 C = 100.71 F Sfc-Lift cond lev (LCL): 953.41 mb = 467.93 m = 1535.18 ft T: 25.21 C 700-500 lapse rate: 6.86 C/km ThetaE index: 19.19 C Layer 730.0- 543.0 mb Conv cond level (CCL): 797.50 mb = 2027.24 m = 6650.96 ft Mean mixing ratio: 18.37 g/kg Conv temperature: 39.63 C = 103.33 F Cap Strength: 4.72 C Lifted Index: -5.65 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -4.51 C Lifted Index @700 mb: 0.10 C Showalter Index: -4.83 C Risk: Severe thunderstorms possible Total Totals Index: 52.80 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 29.90 C Cross Totals Index: 22.90 C K Index: 37.70 Risk: > 80 % chance of thunderstorms Sweat Index: 330.60 Risk: Showers and thunderstorms possible Energy Index: -3.13 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1691.19 J/kg Max Up Vert Vel: 58.16 m/s Conv Inhibition (B-): 183.78 J/kg Cap Strength: 4.68 C Lift Cond Lev (LCL): 914.14 mb = 838.64 m = 2751.42 ft Lev Free Conv (LFC): 689.14 mb = 3274.63 m = 10743.40 ft Equ Level (EL): 159.14 mb = 13916.14 m = 45656.07 ft B at Equ Level: 1690.23 J/kg Wind level data Storm motion: 307 at 13 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 1000 45 105 7 -6.8 1.8 | 119 20 -17.5 9.8 1 925 735 95 7 -7.0 0.6 | 116 20 -17.7 8.6 2 850 1478 225 13 9.2 9.2 | 175 17 -1.6 17.2 3 700 3144 285 19 18.4 -4.9 | 248 8 7.6 3.1 4 500 5870 285 27 26.1 -7.0 | 266 15 15.3 1.0 5 400 7590 265 23 22.9 2.0 | 231 16 12.2 10.0 6 300 9710 285 25 24.1 -6.5 | 263 13 13.4 1.5 7 250 10980 280 19 18.7 -3.3 | 239 9 8.0 4.7 8 200 12470 270 23 23.0 -0.0 | 237 15 12.3 8.0 9 150 14280 270 15 15.0 -0.0 | 208 9 4.3 8.0 10 100 16670 220 17 10.9 13.0 | 181 21 0.2 21.0 Wind Parameters Mean winds (0-6000m): 276.7 at 17.9 knts Storm direction: 306.7 at 13.4 knts Storm rel Dir Shear (0-3000m): -167.6 deg Energy-Hel index: 1.46 Bulk Rich Number: 20.62 Bulk Shear: 82.03 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 ------------------------------------------------------------------------------- 500 102 7 118 20| | | 1000 106 7 120 20| | | 1500 142 9 133 22| | | 2000 192 10 154 20| | | 2500 222 11 169 17| | | 3000 242 12 181 14| | | 4000 264 14 200 10| | | 5000 273 16 216 9| | | 6000 277 18 230 9| | | Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250424.12.gif