UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 21 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 1009 6 26.6 24.1 86 2.5 24.8 130 3 299.0 302.5 297.6 354.6 19.05 1 1000 88 25.6 23.8 90 1.8 24.3 145 9 298.8 302.2 297.4 353.8 18.88 2 946 576 22.2 22.2 100 0.0 22.2 184 19 300.1 303.4 297.3 353.1 18.09 3 925 773 25.0 21.1 79 3.9 22.2 200 23 304.9 308.1 298.0 356.5 17.28 4 924 783 25.0 21.0 78 4.0 22.1 200 23 305.0 308.2 298.0 356.3 17.19 5 916 859 24.8 21.5 82 3.3 22.4 203 23 305.5 308.9 298.5 359.2 17.90 6 871 1301 23.2 17.2 69 6.0 19.0 221 20 308.3 311.0 297.0 351.6 14.32 7 850 1514 21.4 16.7 75 4.7 18.1 230 19 308.6 311.2 297.0 351.6 14.21 8 700 3167 9.4 8.2 92 1.2 8.6 245 27 312.9 314.8 295.1 343.2 9.80 9 696 3215 9.0 8.1 94 0.9 8.5 245 27 313.0 314.8 295.1 343.3 9.79 10 650 3779 5.6 5.6 100 0.0 5.6 242 29 315.3 317.0 295.0 342.9 8.82 11 552 5097 -3.3 -4.9 89 1.6 -4.1 234 35 319.8 320.8 293.2 335.4 4.82 12 549 5140 -2.3 -9.3 59 7.0 -5.4 234 35 321.5 322.2 292.5 332.9 3.44 13 515 5647 -4.7 -7.5 81 2.8 -6.0 231 37 324.6 325.4 294.0 338.6 4.23 14 511 5708 -4.7 -8.4 75 3.7 -6.4 231 37 325.3 326.1 294.0 338.5 3.97 15 509 5739 -4.3 -18.3 33 14.0 -9.3 231 37 326.1 326.5 292.3 332.3 1.78 16 507 5770 -4.5 -12.5 54 8.0 -7.8 231 38 326.3 326.8 293.3 336.0 2.89 17 505 5801 -4.5 -18.5 33 14.0 -9.5 230 38 326.6 327.0 292.4 332.7 1.76 18 502 5848 -4.7 -11.7 58 7.0 -7.7 230 38 326.9 327.6 293.7 337.5 3.11 19 500 5880 -4.5 -14.5 46 10.0 -8.5 230 38 327.6 328.0 293.3 336.1 2.49 20 497 5928 -4.5 -18.5 33 14.0 -9.5 230 38 328.1 328.5 292.9 334.3 1.79 21 494 5975 -4.7 -10.7 63 6.0 -7.3 230 38 328.4 329.1 294.3 340.1 3.43 22 491 6023 -4.5 -20.5 27 16.0 -10.0 230 37 329.3 329.6 293.0 334.6 1.52 23 489 6056 -4.9 -10.9 63 6.0 -7.5 230 37 329.2 329.8 294.5 340.7 3.41 24 487 6088 -4.7 -17.7 35 13.0 -9.5 231 37 329.8 330.2 293.4 336.6 1.95 25 485 6120 -4.9 -18.9 32 14.0 -9.9 231 37 329.9 330.3 293.3 336.1 1.77 26 478 6235 -5.9 -10.9 68 5.0 -8.1 231 36 330.1 330.8 294.8 341.9 3.48 27 461 6518 -8.1 -10.7 82 2.6 -9.2 232 35 330.8 331.5 295.1 343.3 3.67 28 400 7610 -14.7 -18.8 71 4.1 -16.1 235 29 335.9 336.3 295.2 343.6 2.17 29 391 7782 -15.9 -20.5 68 4.6 -17.4 237 29 336.5 336.9 295.1 343.4 1.91 30 365 8298 -18.9 -50.9 4 32.0 -23.0 245 28 339.2 339.2 294.2 339.6 0.10 31 353 8546 -20.3 -48.3 6 28.0 -24.1 248 28 340.6 340.6 294.6 341.1 0.14 32 337 8888 -22.5 -45.5 10 23.0 -25.7 253 28 342.1 342.2 295.0 342.9 0.19 33 328 9086 -24.3 -34.3 39 10.0 -26.2 256 28 342.3 342.4 295.4 344.7 0.64 34 308 9541 -27.9 -61.9 2 34.0 -30.4 262 27 343.5 343.5 295.2 343.6 0.03 35 300 9730 -29.3 -49.3 13 20.0 -31.4 265 27 344.1 344.1 295.4 344.7 0.14 36 269 10496 -35.1 -64.1 4 29.0 -36.7 280 29 346.5 346.5 295.9 346.7 0.03 37 260 10731 -36.7 -43.7 48 7.0 -37.4 285 30 347.6 347.6 296.4 348.8 0.31 38 250 11000 -39.1 -48.1 38 9.0 -39.8 290 31 347.9 348.0 296.4 348.7 0.20 39 232 11506 -43.7 -52.7 36 9.0 -44.2 292 25 348.5 348.5 296.4 349.0 0.12 40 226 11682 -43.9 -67.9 5 24.0 -44.7 292 23 350.8 350.8 296.8 350.9 0.02 41 206 12297 -48.5 -74.5 3 26.0 -49.0 294 15 353.0 353.0 297.3 353.0 0.01 42 200 12490 -50.3 -75.3 4 25.0 -50.8 295 13 353.1 353.1 297.3 353.1 0.01 43 150 14310 -65.3 -79.3 13 14.0 -65.4 355 5 357.6 357.6 298.2 357.6 0.00 44 141 14683 -68.5 -79.5 19 11.0 -68.5 9 5 358.4 358.4 298.4 358.4 0.01 45 110 16135 -77.1 -85.1 27 8.0 -77.1 68 5 368.6 368.6 300.3 368.6 0.00 46 100 16680 -77.9 -85.9 26 8.0 -77.9 90 5 377.2 377.2 301.8 377.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5792.00 m Freezing level: 588.34 mb = 4607.98 m = 15117.87 ft Wetbulb zero: 593.38 mb = 4513.76 m = 14808.73 ft Precipitable water: 2.44 inches Sfc-500 mean rel hum: 84.99 % Est. max temperature: 36.09 C = 96.96 F Sfc-Lift cond lev (LCL): 973.46 mb = 324.43 m = 1064.39 ft T: 23.95 C 700-500 lapse rate: 5.12 C/km ThetaE index: 15.93 C Layer 871.0- 696.0 mb Conv cond level (CCL): 948.53 mb = 552.46 m = 1812.52 ft Mean mixing ratio: 18.20 g/kg Conv temperature: 27.64 C = 81.74 F Cap Strength: 3.49 C Lifted Index: -3.17 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.36 C Lifted Index @700 mb: -2.43 C Showalter Index: -2.12 C Risk: Severe thunderstorms possible Total Totals Index: 47.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.90 C Cross Totals Index: 21.20 C K Index: 41.40 Risk: > 80 % chance of thunderstorms Sweat Index: 276.40 Risk: None Energy Index: -3.06 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1219.89 J/kg Max Up Vert Vel: 49.39 m/s Conv Inhibition (B-): 124.55 J/kg Cap Strength: 3.53 C Lift Cond Lev (LCL): 935.14 mb = 677.33 m = 2222.18 ft Lev Free Conv (LFC): 770.14 mb = 2354.04 m = 7723.12 ft Equ Level (EL): 180.14 mb = 13151.74 m = 43148.24 ft B at Equ Level: 1213.13 J/kg Wind level data Storm motion: 262 at 20 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 1009 6 130 3 -2.3 1.9 | 87 22 -22.0 -1.0 1 1000 88 145 9 -5.2 7.4 | 100 25 -24.9 4.5 2 925 773 200 23 7.9 21.6 | 148 22 -11.8 18.7 3 850 1514 230 19 14.6 12.2 | 151 11 -5.1 9.3 4 700 3167 245 27 24.5 11.4 | 209 10 4.8 8.5 5 500 5880 230 38 29.1 24.4 | 204 23 9.4 21.5 6 400 7610 235 29 23.8 16.6 | 196 14 4.1 13.7 7 300 9730 265 27 26.9 2.4 | 274 7 7.2 -0.5 8 250 11000 290 31 29.1 -10.6 | 325 16 9.4 -13.5 9 200 12490 295 13 11.8 -5.5 | 43 12 -7.9 -8.4 10 150 14310 355 5 0.4 -5.0 | 68 21 -19.3 -7.9 11 100 16680 90 5 -5.0 0.0 | 83 25 -24.7 -2.9 Wind Parameters Mean winds (0-6000m): 231.6 at 26.6 knts Storm direction: 261.6 at 19.9 knts Shear (0-3000m) pos: 4.7 neg: 0.0 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 115.8 deg Storm rel helicity (0-3000m) pos: 195.2 neg: -0.8 tot: 194.5 m^2/s^2 ave: 64.8 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 6.1 10^-3/s Energy-Hel index: 1.37 Bulk Rich Number: 15.52 Bulk Shear: 78.59 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 ------------------------------------------------------------------------------- 500 165 12 111 24| 16.2 0.0 16.2|109.4 0.0 109.4 218.9 0.94| 18.2 17.2 1000 190 17 129 21| 11.0 0.0 11.0|170.4 0.0 170.4 170.4 0.87| 15.8 13.7 1500 201 18 136 19| 6.8 0.0 6.8|172.7 -0.8 171.9 114.6 0.70| 13.2 9.2 2000 210 18 141 17| 5.7 0.0 5.7|180.0 -0.8 179.2 89.6 0.72| 10.6 7.6 2500 217 19 147 15| 5.1 0.0 5.1|187.5 -0.8 186.7 74.7 0.74| 9.1 6.7 3000 223 20 154 13| 4.7 0.0 4.7|195.2 -0.8 194.5 64.8 0.75| 8.1 6.1 4000 229 22 166 12| 3.5 0.6 4.1|198.0 -1.2 196.8 49.2 0.70| 6.8 4.7 5000 232 24 177 12| 2.8 1.0 3.8|198.0 -4.3 193.6 38.7 0.62| 5.9 3.7 6000 232 27 185 14| 2.4 1.1 3.5|198.0 -11.0 187.0 31.2 0.55| 5.4 3.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250421.00.gif