UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042200.upa.cvt Date: 0000Z 22 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 22 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 26.0 23.7 87 2.3 24.3 100 1 298.4 301.8 297.2 352.5 18.59 1 1000 84 25.2 23.6 91 1.6 24.0 125 3 298.4 301.7 297.2 352.6 18.65 2 942 608 21.8 21.8 100 0.0 21.8 190 11 300.0 303.3 297.1 351.9 17.72 3 925 767 25.0 20.0 74 5.0 21.4 210 13 304.9 307.9 297.3 353.0 16.11 4 916 853 26.6 18.6 62 8.0 20.9 215 14 307.4 310.2 297.1 352.3 14.88 5 895 1058 25.4 17.4 61 8.0 19.8 228 16 308.2 310.8 296.8 350.9 14.11 6 850 1511 22.2 15.2 65 7.0 17.4 255 21 309.4 311.8 296.3 348.6 12.89 7 735 2757 12.6 10.2 85 2.4 11.0 240 22 312.1 314.1 295.5 345.0 10.70 8 700 3166 10.2 6.7 79 3.5 8.0 235 23 313.8 315.5 294.6 341.2 8.83 9 649 3791 6.4 0.4 65 6.0 3.1 243 23 316.3 317.5 293.2 335.6 6.08 10 625 4099 3.8 1.1 83 2.7 2.3 247 22 316.8 318.1 293.8 337.9 6.65 11 617 4204 3.6 -5.4 52 9.0 -0.7 248 22 317.7 318.5 292.0 331.1 4.15 12 596 4484 2.0 -1.8 76 3.8 0.0 252 22 319.0 320.1 293.6 337.1 5.63 13 593 4525 2.4 -6.6 51 9.0 -1.9 252 22 320.0 320.7 292.4 332.8 3.93 14 588 4594 2.2 -16.8 23 19.0 -5.0 253 22 320.5 320.9 290.7 326.4 1.74 15 563 4944 1.0 -30.0 8 31.0 -7.6 258 22 323.1 323.2 290.3 325.1 0.56 16 550 5132 0.0 -20.0 21 20.0 -7.0 260 22 324.1 324.4 291.5 329.0 1.42 17 545 5205 -0.7 -12.7 40 12.0 -5.7 261 22 324.1 324.6 292.5 333.0 2.64 18 544 5219 -1.1 -5.0 75 3.9 -3.0 261 22 323.8 324.7 294.3 339.7 4.85 19 528 5458 -1.5 -9.5 54 8.0 -5.1 264 21 326.1 326.8 293.8 337.9 3.52 20 500 5890 -4.1 -8.3 73 4.2 -6.1 270 21 328.0 328.9 294.7 341.8 4.09 21 495 5969 -4.5 -8.2 75 3.7 -6.2 270 21 328.5 329.3 294.9 342.5 4.17 22 473 6326 -5.9 -16.9 41 11.0 -10.1 270 21 331.1 331.5 294.0 338.6 2.15 23 453 6664 -8.1 -13.1 67 5.0 -10.2 270 20 332.4 333.0 295.0 343.1 3.08 24 418 7284 -12.1 -24.1 36 12.0 -15.7 270 19 335.0 335.3 294.3 339.7 1.30 25 414 7357 -12.7 -18.7 61 6.0 -14.8 270 19 335.2 335.6 295.0 342.7 2.11 26 411 7413 -12.5 -28.5 25 16.0 -16.7 270 19 336.1 336.3 294.1 339.4 0.89 27 407 7488 -12.7 -36.7 11 24.0 -17.7 270 19 336.8 336.9 293.9 338.4 0.40 28 400 7620 -13.5 -32.5 19 19.0 -18.0 270 19 337.4 337.6 294.3 339.8 0.62 29 397 7677 -14.1 -31.1 22 17.0 -18.2 270 19 337.4 337.5 294.3 340.1 0.72 30 380 8007 -16.7 -19.2 81 2.5 -17.6 271 19 338.2 338.7 295.8 346.1 2.20 31 367 8267 -18.7 -23.2 68 4.5 -20.0 271 19 338.9 339.3 295.4 344.8 1.61 32 363 8349 -18.9 -34.9 23 16.0 -22.1 272 19 339.7 339.8 294.7 341.8 0.54 33 361 8390 -19.1 -35.1 23 16.0 -22.3 272 19 340.0 340.1 294.8 342.1 0.54 34 331 9029 -23.3 -62.3 2 39.0 -26.7 273 19 342.8 342.8 295.0 342.9 0.03 35 300 9740 -29.1 -52.1 9 23.0 -31.3 275 19 344.4 344.4 295.4 344.8 0.10 36 265 10617 -36.3 -62.3 5 26.0 -37.7 289 16 346.3 346.3 295.8 346.4 0.03 37 250 11020 -39.5 -55.5 17 16.0 -40.5 295 15 347.3 347.4 296.1 347.7 0.08 38 228 11640 -45.1 -51.1 51 6.0 -45.4 291 15 348.1 348.1 296.3 348.7 0.15 39 226 11699 -45.3 -61.3 15 16.0 -45.9 290 15 348.6 348.6 296.4 348.8 0.04 40 224 11758 -45.9 -54.9 35 9.0 -46.3 290 15 348.6 348.6 296.4 349.0 0.10 41 222 11817 -45.9 -60.9 17 15.0 -46.4 290 15 349.5 349.5 296.5 349.7 0.05 42 217 11968 -47.3 -54.3 45 7.0 -47.6 289 15 349.6 349.6 296.7 350.1 0.11 43 214 12059 -48.1 -53.1 56 5.0 -48.3 288 15 349.8 349.8 296.7 350.3 0.13 44 210 12183 -49.1 -63.1 18 14.0 -49.5 287 15 350.1 350.1 296.7 350.3 0.04 45 207 12277 -49.7 -56.7 44 7.0 -50.0 287 15 350.6 350.6 296.8 351.0 0.09 46 200 12500 -51.5 -61.5 29 10.0 -51.8 285 15 351.2 351.2 297.0 351.4 0.05 47 198 12565 -51.9 -64.9 20 13.0 -52.2 283 15 351.6 351.6 297.0 351.7 0.03 48 188 12899 -54.5 -60.5 47 6.0 -54.6 271 14 352.6 352.7 297.3 352.9 0.06 49 184 13036 -55.3 -70.3 14 15.0 -55.5 266 13 353.5 353.5 297.4 353.6 0.02 50 158 13991 -62.5 -67.5 51 5.0 -62.6 232 10 357.1 357.1 298.1 357.2 0.03 51 150 14310 -64.5 -71.5 38 7.0 -64.6 220 9 359.0 359.0 298.5 359.0 0.02 52 141 14685 -68.1 -72.5 53 4.4 -68.1 231 8 359.1 359.1 298.5 359.1 0.02 53 135 14944 -69.7 -81.7 16 12.0 -69.8 239 7 360.7 360.7 298.8 360.7 0.00 54 100 16690 -79.1 -86.1 31 7.0 -79.1 295 3 374.9 374.9 301.4 374.9 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5806.00 m Freezing level: 550.00 mb = 5131.65 m = 16835.91 ft Wetbulb zero: 618.95 mb = 4178.15 m = 13707.66 ft Precipitable water: 2.17 inches Sfc-500 mean rel hum: 66.98 % Est. max temperature: 36.80 C = 98.23 F Sfc-Lift cond lev (LCL): 976.24 mb = 294.66 m = 966.73 ft T: 23.83 C 700-500 lapse rate: 5.25 C/km ThetaE index: 17.36 C Layer 916.0- 625.0 mb Conv cond level (CCL): 812.60 mb = 1896.59 m = 6222.32 ft Mean mixing ratio: 17.50 g/kg Conv temperature: 37.90 C = 100.22 F Cap Strength: 5.66 C Lifted Index: -2.01 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.05 C Lifted Index @700 mb: -1.07 C Showalter Index: -0.66 C Risk: Thunderstorms probable Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.30 C Cross Totals Index: 19.30 C K Index: 38.00 Risk: > 80 % chance of thunderstorms Sweat Index: 245.40 Risk: None Energy Index: -1.37 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 716.29 J/kg Max Up Vert Vel: 37.85 m/s Conv Inhibition (B-): 196.58 J/kg Cap Strength: 5.48 C Lift Cond Lev (LCL): 927.63 mb = 742.11 m = 2434.70 ft Lev Free Conv (LFC): 742.63 mb = 2668.19 m = 8753.79 ft Equ Level (EL): 192.63 mb = 12741.97 m = 41803.87 ft B at Equ Level: 713.62 J/kg Max Parcel Lev (MPL): 112.63 mb = 15998.00 m = 52486.25 ft Wind level data Storm motion: 276 at 15 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 6 100 1 -1.0 0.2 | 97 16 -15.6 1.8 1 1000 84 125 3 -2.5 1.7 | 101 17 -17.1 3.4 2 925 767 210 13 6.5 11.3 | 148 15 -8.1 12.9 3 850 1511 255 21 20.3 5.4 | 219 9 5.7 7.1 4 700 3166 235 23 18.8 13.2 | 196 15 4.2 14.9 5 500 5890 270 21 21.0 -0.0 | 255 7 6.4 1.7 6 400 7620 270 19 19.0 -0.0 | 249 5 4.4 1.7 7 300 9740 275 19 18.9 -1.7 | 270 4 4.3 0.0 8 250 11020 295 15 13.6 -6.3 | 12 5 -1.0 -4.7 9 200 12500 285 15 14.5 -3.9 | 3 2 -0.1 -2.2 10 150 14310 220 9 5.8 6.9 | 134 12 -8.8 8.6 11 100 16690 295 3 2.7 -1.3 | 92 12 -11.9 0.4 Wind Parameters Mean winds (0-6000m): 246.5 at 19.6 knts Storm direction: 276.5 at 14.7 knts Shear (0-3000m) pos: 3.7 neg: 1.2 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 101.0 deg Storm rel helicity (0-3000m) pos: 118.6 neg: -13.2 tot: 105.5 m^2/s^2 ave: 35.2 10^-3 m/s^2 rel: 0.64 Storm rel vorticity (0-3000m) horiz: 6.9 stream: 4.4 10^-3/s Energy-Hel index: 0.53 Bulk Rich Number: 13.84 Bulk Shear: 51.75 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 ------------------------------------------------------------------------------- 500 163 5 113 18| 9.3 0.0 9.3| 44.9 0.0 44.9 89.7 0.88| 10.8 9.5 1000 205 9 132 15| 8.3 0.0 8.3| 89.4 0.0 89.4 89.4 0.89| 11.5 10.2 1500 226 12 150 12| 7.5 0.0 7.5|118.6 0.0 118.6 79.1 0.90| 11.4 10.3 2000 236 14 164 10| 5.6 0.6 6.2|118.6 -3.4 115.2 57.6 0.81| 9.1 7.4 2500 239 16 174 10| 4.5 0.9 5.4|118.6 -7.8 110.8 44.3 0.72| 7.8 5.6 3000 239 17 180 10| 3.7 1.2 4.9|118.6 -13.2 105.5 35.2 0.64| 6.9 4.4 4000 239 18 187 11| 2.9 0.9 3.8|128.9 -14.5 114.4 28.6 0.63| 5.8 3.6 5000 242 19 193 11| 2.4 0.7 3.1|139.0 -14.5 124.5 24.9 0.64| 5.2 3.3 6000 246 20 200 10| 2.1 0.6 2.7|146.3 -14.5 131.7 22.0 0.65| 4.7 3.0 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250422.00.gif