UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042800.upa.cvt Date: 0000Z 28 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 28 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 1012 6 26.8 25.0 90 1.8 25.5 50 1 298.9 302.6 298.2 357.6 20.08 1 1000 109 25.4 24.4 94 1.0 24.7 55 1 298.5 302.1 297.8 355.7 19.59 2 955 514 22.4 22.4 100 0.0 22.4 96 5 299.5 302.8 297.2 352.5 18.14 3 925 793 21.6 21.6 100 0.0 21.6 125 7 301.4 304.7 297.5 353.9 17.83 4 853 1496 19.0 16.7 87 2.3 17.4 68 5 305.7 308.4 296.2 348.2 14.16 5 850 1526 19.0 15.8 82 3.2 16.8 65 5 306.0 308.5 295.8 346.3 13.40 6 795 2099 16.4 12.3 77 4.1 13.7 20 8 309.2 311.3 295.2 343.8 11.38 7 710 3053 10.4 2.4 58 8.0 5.9 304 14 312.7 314.0 292.4 332.8 6.42 8 700 3171 9.2 7.8 91 1.4 8.3 295 15 312.7 314.5 294.8 342.1 9.54 9 698 3195 9.0 7.7 92 1.3 8.2 294 15 312.7 314.5 294.8 342.1 9.50 10 623 4125 2.8 -3.2 65 6.0 -0.2 272 14 315.9 316.9 292.1 331.4 4.85 11 583 4660 1.4 -15.6 27 17.0 -5.1 260 13 320.4 320.7 290.8 326.9 1.95 12 547 5170 -1.7 -30.7 9 29.0 -9.4 247 12 322.6 322.7 290.1 324.5 0.54 13 500 5880 -5.5 -27.5 16 22.0 -11.6 230 11 326.3 326.5 291.5 329.2 0.80 14 496 5943 -5.9 -21.9 27 16.0 -11.0 231 11 326.6 326.9 292.0 331.3 1.33 15 480 6200 -7.7 -32.7 11 25.0 -13.6 237 11 327.5 327.6 291.5 329.3 0.51 16 473 6315 -8.7 -27.7 20 19.0 -13.8 240 11 327.6 327.8 291.9 330.6 0.83 17 472 6331 -8.7 -19.7 41 11.0 -12.3 240 12 327.8 328.1 292.7 333.7 1.70 18 465 6447 -9.1 -34.1 11 25.0 -14.7 243 12 328.7 328.8 291.8 330.4 0.46 19 451 6684 -10.1 -32.1 15 22.0 -15.3 248 12 330.3 330.4 292.4 332.5 0.57 20 437 6927 -12.1 -36.1 12 24.0 -17.1 254 12 330.8 330.9 292.3 332.3 0.40 21 432 7015 -12.9 -21.9 47 9.0 -15.7 256 12 330.9 331.2 293.4 336.3 1.53 22 422 7194 -14.1 -31.1 22 17.0 -18.0 260 13 331.5 331.7 292.8 334.0 0.68 23 417 7285 -14.5 -20.5 60 6.0 -16.4 263 13 332.2 332.5 294.0 338.5 1.79 24 404 7525 -16.3 -18.5 83 2.2 -17.0 268 13 332.9 333.3 294.4 340.6 2.20 25 400 7600 -17.1 -19.6 81 2.5 -17.9 270 13 332.8 333.2 294.3 339.9 2.02 26 394 7713 -17.9 -18.0 99 0.1 -17.9 270 13 333.2 333.6 294.7 341.4 2.36 27 379 8003 -20.1 -27.1 54 7.0 -21.8 271 14 334.0 334.2 293.8 338.0 1.09 28 378 8022 -20.3 -27.3 54 7.0 -22.0 271 14 334.0 334.2 293.8 337.9 1.08 29 372 8141 -20.5 -25.5 64 5.0 -21.8 271 14 335.2 335.5 294.3 339.9 1.29 30 371 8161 -20.5 -21.8 89 1.3 -20.9 271 14 335.5 335.9 294.8 341.9 1.80 31 341 8780 -24.7 -25.6 92 0.9 -24.9 273 15 338.0 338.3 295.1 343.1 1.40 32 332 8974 -26.3 -28.0 86 1.7 -26.7 273 16 338.4 338.6 295.0 342.6 1.15 33 319 9262 -28.7 -42.7 25 14.0 -30.4 274 16 338.9 339.0 294.3 340.0 0.28 34 318 9284 -28.9 -40.9 31 12.0 -30.5 274 16 339.0 339.0 294.4 340.3 0.34 35 316 9329 -28.5 -30.2 85 1.7 -28.8 274 16 340.1 340.3 295.2 343.8 0.98 36 300 9700 -31.3 -32.7 87 1.4 -31.6 275 17 341.3 341.4 295.4 344.4 0.82 37 271 10409 -36.1 -39.6 70 3.5 -36.5 269 24 344.4 344.5 295.8 346.1 0.45 38 250 10960 -40.7 -43.5 74 2.8 -40.9 265 29 345.6 345.6 295.9 346.9 0.33 39 241 11208 -42.5 -44.4 82 1.9 -42.6 266 29 346.5 346.6 296.1 347.7 0.31 40 230 11522 -44.7 -50.7 51 6.0 -45.0 267 29 347.8 347.8 296.3 348.5 0.16 41 215 11969 -48.9 -51.6 73 2.7 -49.0 268 29 348.1 348.1 296.3 348.7 0.15 42 207 12217 -50.7 -56.7 49 6.0 -50.9 269 29 349.0 349.0 296.5 349.4 0.09 43 200 12440 -52.5 -58.5 48 6.0 -52.7 270 29 349.6 349.6 296.6 349.9 0.07 44 182 13044 -57.7 -62.5 54 4.8 -57.8 272 34 350.7 350.7 296.8 350.9 0.05 45 152 14160 -66.3 -72.3 43 6.0 -66.4 275 43 354.5 354.5 297.6 354.6 0.01 46 150 14240 -66.7 -72.7 42 6.0 -66.7 275 44 355.2 355.2 297.7 355.2 0.01 47 125 15320 -73.3 -80.3 34 7.0 -73.3 266 35 362.2 362.2 299.1 362.3 0.01 48 100 16600 -79.9 -84.9 43 5.0 -79.9 255 23 373.4 373.4 301.1 373.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5771.00 m Freezing level: 566.74 mb = 4890.44 m = 16044.54 ft Wetbulb zero: 624.91 mb = 4099.53 m = 13449.73 ft Precipitable water: 2.12 inches Sfc-500 mean rel hum: 63.79 % Est. max temperature: 33.07 C = 91.52 F Sfc-Lift cond lev (LCL): 986.38 mb = 229.63 m = 753.36 ft T: 24.51 C 700-500 lapse rate: 5.43 C/km ThetaE index: 21.14 C Layer 853.0- 700.0 mb Conv cond level (CCL): 962.03 mb = 449.55 m = 1474.88 ft Mean mixing ratio: 18.52 g/kg Conv temperature: 27.20 C = 80.96 F Cap Strength: 0.29 C Lifted Index: -4.00 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -5.10 C Lifted Index @700 mb: -2.48 C Showalter Index: -1.18 C Risk: Thunderstorms probable Total Totals Index: 45.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.50 C Cross Totals Index: 21.30 C K Index: 38.90 Risk: > 80 % chance of thunderstorms Sweat Index: 210.60 Risk: None Energy Index: -3.28 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1688.59 J/kg Max Up Vert Vel: 58.11 m/s Conv Inhibition (B-): 0.00 J/kg Cap Strength: 0.28 C Lift Cond Lev (LCL): 956.03 mb = 504.65 m = 1655.65 ft Lev Free Conv (LFC): 951.03 mb = 550.54 m = 1806.20 ft Equ Level (EL): 901.03 mb = 1020.69 m = 3348.69 ft B at Equ Level: 16.11 J/kg Wind level data Storm motion: 306 at 8 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 1012 6 50 1 -0.8 -0.6 | 119 8 -7.0 3.8 1 1000 109 55 1 -0.8 -0.6 | 119 8 -7.0 3.9 2 925 793 125 7 -5.7 4.0 | 125 15 -11.9 8.4 3 850 1526 65 5 -4.5 -2.1 | 102 11 -10.7 2.3 4 700 3171 295 15 13.6 -6.3 | 285 8 7.4 -1.9 5 500 5880 230 11 8.4 7.1 | 191 12 2.2 11.5 6 400 7600 270 13 13.0 -0.0 | 237 8 6.8 4.4 7 300 9700 275 17 16.9 -1.5 | 255 11 10.7 2.9 8 250 10960 265 29 28.9 2.5 | 253 24 22.7 7.0 9 200 12440 270 29 29.0 -0.0 | 259 23 22.8 4.4 10 150 14240 275 44 43.8 -3.8 | 269 38 37.6 0.6 11 100 16600 255 23 22.2 6.0 | 237 19 16.0 10.4 Wind Parameters Mean winds (0-6000m): 275.5 at 10.2 knts Storm direction: 305.5 at 7.6 knts Shear (0-3000m) pos: 1.0 neg: 3.5 tot: 4.5 10-3/s Storm rel Dir Shear (0-3000m): -167.5 deg Storm rel helicity (0-3000m) pos: 9.4 neg: -64.8 tot: -55.4 m^2/s^2 ave: -18.5 10^-3 m/s^2 rel: -0.67 Storm rel vorticity (0-3000m) horiz: 6.1 stream: -4.1 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 81.70 Bulk Shear: 20.67 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 85 2 116 10| 4.0 0.0 4.0| 1.0 -2.0 -1.0 -2.0 -0.13| 4.2 -0.5 1000 116 4 122 12| 3.1 0.0 3.1| 9.4 -9.0 0.4 0.4 -0.00| 5.1 -0.0 1500 107 5 118 12| 2.0 1.4 3.5| 9.4 -19.9 -10.5 -7.0 -0.23| 4.9 -1.1 2000 88 5 110 12| 1.5 2.4 3.9| 9.4 -34.6 -25.2 -12.6 -0.43| 5.0 -2.2 2500 58 6 96 11| 1.2 3.1 4.4| 9.4 -49.9 -40.5 -16.2 -0.57| 5.5 -3.1 3000 11 7 71 8| 1.0 3.5 4.5| 9.4 -64.8 -55.4 -18.5 -0.67| 6.1 -4.1 4000 304 9 293 1| 0.8 2.6 3.3| 9.4 -81.2 -71.8 -17.9 -0.73| 5.7 -4.2 5000 287 10 243 4| 0.6 1.8 2.4| 9.4 -94.0 -84.5 -16.9 -0.75| 5.1 -3.9 6000 276 10 229 5| 0.5 1.4 1.9| 10.7-105.5 -94.8 -15.8 -0.75| 4.7 -3.5 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250428.00.gif