UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042300.upa.cvt Date: 0000Z 23 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 23 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 1007 6 26.0 23.8 88 2.2 24.4 0 0 298.6 302.0 297.3 353.2 18.74 1 1000 64 25.6 23.8 90 1.8 24.3 0 0 298.8 302.2 297.4 353.8 18.88 2 958 442 22.6 22.4 99 0.2 22.5 288 7 299.4 302.7 297.1 352.3 18.08 3 934 664 24.6 19.6 74 5.0 21.1 246 11 303.6 306.5 296.6 349.8 15.55 4 925 750 27.0 18.0 58 9.0 20.6 230 13 306.9 309.6 296.5 349.6 14.18 5 903 963 26.2 17.2 58 9.0 19.9 244 15 308.2 310.8 296.6 350.0 13.80 6 850 1494 22.6 14.6 61 8.0 17.1 280 21 309.8 312.2 296.1 347.6 12.39 7 772 2324 16.6 10.6 68 6.0 12.7 280 22 312.0 314.0 295.3 344.2 10.46 8 708 3056 11.4 4.4 62 7.0 7.3 280 23 314.1 315.5 293.6 337.3 7.43 9 700 3151 11.0 3.0 58 8.0 6.4 280 23 314.7 316.0 293.3 336.0 6.80 10 690 3271 10.6 -2.4 40 13.0 3.8 279 23 315.5 316.4 291.8 330.3 4.65 11 686 3319 10.0 3.0 62 7.0 5.9 278 23 315.4 316.7 293.6 337.2 6.94 12 657 3676 7.0 2.0 70 5.0 4.2 274 22 315.9 317.2 293.6 337.2 6.75 13 634 3968 4.6 -2.4 60 7.0 1.0 271 22 316.4 317.4 292.4 332.6 5.06 14 581 4675 1.6 -28.4 9 30.0 -7.0 263 21 320.9 321.0 289.7 323.2 0.63 15 580 4689 1.4 -29.6 8 31.0 -7.2 263 21 320.8 320.9 289.6 322.9 0.57 16 571 4815 0.6 -27.4 10 28.0 -7.5 262 21 321.3 321.5 289.9 323.8 0.71 17 567 4871 -0.3 -7.3 59 7.0 -3.6 261 20 320.9 321.7 292.7 333.7 3.90 18 561 4956 -1.3 -5.7 72 4.4 -3.4 260 20 320.7 321.6 293.1 335.3 4.46 19 548 5142 -2.9 -5.7 81 2.8 -4.3 258 20 321.0 321.9 293.3 335.9 4.57 20 533 5363 -1.7 -35.7 5 34.0 -9.8 256 20 325.0 325.0 290.6 326.2 0.34 21 500 5870 -3.3 -42.3 3 39.0 -11.3 250 19 329.0 329.1 291.6 329.7 0.18 22 476 6258 -4.3 -45.3 2 41.0 -12.3 253 18 332.4 332.5 292.5 333.0 0.14 23 400 7600 -14.5 -40.5 9 26.0 -19.3 265 13 336.1 336.2 293.6 337.2 0.28 24 389 7811 -15.7 -48.7 4 33.0 -20.5 263 14 337.3 337.3 293.7 337.7 0.12 25 384 7909 -16.5 -30.5 29 14.0 -19.8 261 14 337.5 337.6 294.4 340.4 0.79 26 370 8187 -18.5 -30.5 34 12.0 -21.2 258 15 338.4 338.6 294.7 341.5 0.82 27 351 8579 -20.9 -45.9 9 25.0 -24.4 254 17 340.3 340.3 294.6 341.0 0.18 28 323 9188 -26.3 -32.3 57 6.0 -27.5 246 19 341.0 341.2 295.3 344.0 0.79 29 318 9301 -26.7 -32.7 57 6.0 -27.8 245 19 342.0 342.2 295.5 344.9 0.77 30 315 9369 -26.7 -50.7 8 24.0 -29.2 244 20 342.9 343.0 295.1 343.4 0.12 31 300 9720 -29.7 -43.7 24 14.0 -31.4 240 21 343.5 343.6 295.4 344.6 0.27 32 299 9744 -30.1 -44.1 24 14.0 -31.7 240 21 343.3 343.3 295.3 344.3 0.25 33 289 9984 -31.3 -57.3 6 26.0 -33.3 244 20 344.9 344.9 295.6 345.2 0.06 34 274 10358 -34.5 -49.5 20 15.0 -35.8 250 18 345.6 345.6 295.8 346.2 0.15 35 270 10460 -35.3 -43.3 44 8.0 -36.2 252 18 345.9 346.0 296.0 347.1 0.31 36 266 10563 -36.1 -49.1 25 13.0 -37.2 253 17 346.2 346.2 296.0 346.9 0.16 37 262 10668 -36.9 -41.3 64 4.4 -37.4 255 17 346.5 346.6 296.2 348.1 0.39 38 257 10801 -37.5 -49.5 28 12.0 -38.5 257 16 347.6 347.6 296.3 348.2 0.16 39 250 10990 -39.1 -49.1 34 10.0 -39.9 260 15 347.9 348.0 296.3 348.7 0.18 40 249 11018 -39.3 -49.3 34 10.0 -40.1 260 15 348.0 348.1 296.4 348.7 0.17 41 227 11645 -44.5 -49.5 57 5.0 -44.8 271 15 349.4 349.5 296.7 350.2 0.18 42 225 11704 -45.1 -54.1 36 9.0 -45.6 272 15 349.4 349.4 296.6 349.8 0.11 43 200 12480 -52.1 -54.5 75 2.4 -52.2 285 15 350.3 350.3 296.8 350.8 0.12 44 190 12810 -55.3 -56.7 84 1.4 -55.4 291 14 350.3 350.3 296.8 350.7 0.09 45 185 12979 -56.5 -59.1 72 2.6 -56.6 294 14 351.0 351.0 296.9 351.3 0.07 46 181 13118 -57.7 -62.5 54 4.8 -57.8 297 14 351.3 351.3 297.0 351.5 0.05 47 167 13621 -61.5 -64.3 69 2.8 -61.6 307 12 353.1 353.1 297.3 353.3 0.04 48 154 14120 -64.7 -71.7 38 7.0 -64.8 317 11 355.9 355.9 297.9 356.0 0.02 49 150 14280 -65.9 -71.9 43 6.0 -66.0 320 11 356.6 356.6 298.0 356.6 0.02 50 134 14959 -70.3 -74.4 55 4.1 -70.4 331 8 360.4 360.4 298.8 360.5 0.01 51 118 15706 -75.3 -80.2 46 4.9 -75.3 344 4 364.6 364.6 299.6 364.6 0.01 52 100 16660 -77.9 -84.9 31 7.0 -77.9 0 0 377.2 377.2 301.8 377.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5806.00 m Freezing level: 568.33 mb = 4852.15 m = 15918.92 ft Wetbulb zero: 627.29 mb = 4053.80 m = 13299.71 ft Precipitable water: 1.88 inches Sfc-500 mean rel hum: 54.96 % Est. max temperature: 37.07 C = 98.73 F Sfc-Lift cond lev (LCL): 975.73 mb = 280.17 m = 919.20 ft T: 23.88 C 700-500 lapse rate: 5.26 C/km ThetaE index: 19.63 C Layer 850.0- 686.0 mb Conv cond level (CCL): 793.79 mb = 2084.10 m = 6837.51 ft Mean mixing ratio: 16.93 g/kg Conv temperature: 38.86 C = 101.95 F Cap Strength: 5.91 C Lifted Index: -0.98 C Risk: Thunderstorms probable Lifted Index @300 mb: -2.30 C Lifted Index @700 mb: -0.09 C Showalter Index: 0.55 C Risk: Thunderstorms probable Total Totals Index: 43.80 C Risk: None Vertical Totals Index: 25.90 C Cross Totals Index: 17.90 C K Index: 32.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 236.20 Risk: None Energy Index: -3.33 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 644.81 J/kg Max Up Vert Vel: 35.91 m/s Conv Inhibition (B-): 249.59 J/kg Cap Strength: 5.88 C Lift Cond Lev (LCL): 909.50 mb = 899.55 m = 2951.24 ft Lev Free Conv (LFC): 704.50 mb = 3097.41 m = 10161.98 ft Equ Level (EL): 174.50 mb = 13346.61 m = 43787.55 ft B at Equ Level: 638.45 J/kg Wind level data Storm motion: 299 at 14 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 1007 6 0 0 -0.0 -0.0 | 119 14 -12.5 6.8 1 1000 64 0 0 -0.0 -0.0 | 119 14 -12.5 6.8 2 925 750 230 13 10.0 8.4 | 171 15 -2.5 15.2 3 850 1494 280 21 20.7 -3.6 | 249 9 8.2 3.2 4 700 3151 280 23 22.7 -4.0 | 254 11 10.2 2.8 5 500 5870 250 19 17.9 6.5 | 202 14 5.4 13.3 6 400 7600 265 13 13.0 1.1 | 183 8 0.5 8.0 7 300 9720 240 21 18.2 10.5 | 198 18 5.7 17.3 8 250 10990 260 15 14.8 2.6 | 194 10 2.3 9.4 9 200 12480 285 15 14.5 -3.9 | 214 4 2.0 2.9 10 150 14280 320 11 7.1 -8.4 | 73 6 -5.4 -1.6 11 100 16660 0 0 -0.0 -0.0 | 119 14 -12.5 6.8 Wind Parameters Mean winds (0-6000m): 268.7 at 19.0 knts Storm direction: 298.7 at 14.2 knts Shear (0-3000m) pos: 2.0 neg: 3.0 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 135.4 deg Storm rel helicity (0-3000m) pos: 68.0 neg: -5.9 tot: 62.1 m^2/s^2 ave: 20.7 10^-3 m/s^2 rel: 0.61 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 4.0 10^-3/s Energy-Hel index: 0.27 Bulk Rich Number: 20.73 Bulk Shear: 31.11 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 ------------------------------------------------------------------------------- 500 276 4 126 11| 0.0 8.6 8.6| 9.5 -5.9 3.6 7.1 0.27| 11.0 3.0 1000 234 8 153 13| 0.0 8.1 8.1| 35.5 -5.9 29.6 29.6 0.47| 12.5 5.9 1500 253 12 172 10| 4.0 5.4 9.4| 65.8 -5.9 59.9 39.9 0.62| 12.4 7.7 2000 264 14 189 8| 3.0 4.2 7.2| 66.5 -5.9 60.6 30.3 0.62| 9.4 5.8 2500 269 16 203 8| 2.4 3.5 5.8| 67.3 -5.9 61.4 24.5 0.62| 7.7 4.7 3000 271 17 214 8| 2.0 3.0 4.9| 68.0 -5.9 62.1 20.7 0.61| 6.5 4.0 4000 273 18 224 8| 1.5 2.3 3.8| 68.1 -16.8 51.3 12.8 0.47| 5.4 2.5 5000 271 19 225 9| 1.2 2.0 3.2| 68.1 -29.7 38.4 7.7 0.34| 4.8 1.6 6000 269 19 222 10| 1.0 1.7 2.7| 68.1 -41.5 26.6 4.4 0.24| 4.3 1.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250423.00.gif