UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042712.upa.cvt Date: 1200Z 27 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 27 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 1008 6 28.0 24.7 82 3.3 25.6 130 5 300.5 304.1 298.4 358.7 19.79 1 1000 74 27.4 24.6 85 2.8 25.3 130 7 300.5 304.2 298.5 358.9 19.84 2 961 426 24.0 23.9 99 0.1 23.9 156 7 300.6 304.2 298.5 358.8 19.79 3 925 762 23.4 22.0 92 1.4 22.4 180 7 303.2 306.6 298.2 357.6 18.28 4 919 819 23.2 21.6 91 1.6 22.1 184 7 303.6 306.9 298.1 357.0 17.95 5 863 1369 20.8 19.8 94 1.0 20.1 225 7 306.6 309.8 298.3 358.0 17.08 6 850 1501 20.8 17.7 82 3.1 18.6 235 7 307.9 310.8 297.4 353.8 15.16 7 833 1676 20.2 16.5 79 3.7 17.6 236 7 309.1 311.8 297.2 352.6 14.32 8 807 1950 21.0 11.0 53 10.0 14.4 238 8 312.8 314.7 295.4 344.5 10.27 9 765 2411 18.8 3.8 37 15.0 9.9 240 8 315.2 316.5 293.3 335.9 6.58 10 700 3165 12.2 3.2 54 9.0 6.9 245 9 316.0 317.3 293.7 337.8 6.90 11 639 3921 5.6 0.9 72 4.7 3.0 264 11 316.8 318.1 293.6 337.2 6.41 12 607 4339 3.0 -1.4 73 4.4 0.7 275 12 318.5 319.6 293.5 336.8 5.70 13 596 4488 4.8 -5.2 48 10.0 -0.2 278 12 322.3 323.1 293.4 336.6 4.36 14 549 5155 1.4 -11.6 37 13.0 -4.3 296 13 325.9 326.5 293.2 335.6 2.87 15 500 5900 -4.9 -15.9 42 11.0 -9.1 315 15 327.1 327.5 293.0 334.7 2.21 16 481 6202 -7.9 -15.9 53 8.0 -10.9 299 15 327.0 327.5 293.0 334.9 2.30 17 454 6648 -10.5 -32.5 15 22.0 -15.6 274 14 329.2 329.3 292.0 331.2 0.55 18 448 6750 -11.5 -30.5 19 19.0 -16.1 268 14 329.2 329.3 292.2 331.7 0.67 19 445 6801 -11.7 -15.8 72 4.1 -13.2 265 14 329.6 330.1 293.9 338.2 2.51 20 426 7134 -13.1 -15.6 81 2.5 -14.0 247 14 331.9 332.5 294.6 341.2 2.67 21 420 7241 -13.5 -15.8 83 2.3 -14.3 241 13 332.8 333.3 294.8 342.0 2.66 22 405 7516 -15.1 -27.1 35 12.0 -18.3 225 13 334.2 334.4 293.8 337.9 1.02 23 400 7610 -16.1 -27.1 38 11.0 -18.9 220 13 334.1 334.3 293.8 337.9 1.04 24 380 7995 -18.9 -20.8 85 1.9 -19.5 228 15 335.3 335.7 294.8 342.1 1.92 25 363 8335 -21.3 -22.6 89 1.3 -21.7 235 16 336.5 336.9 295.0 342.7 1.72 26 326 9122 -26.7 -28.2 87 1.5 -27.1 252 20 339.6 339.8 295.3 343.8 1.15 27 311 9462 -27.9 -32.9 62 5.0 -28.8 259 22 342.5 342.7 295.6 345.5 0.77 28 301 9696 -29.9 -36.9 51 7.0 -31.0 264 23 342.9 343.0 295.5 345.0 0.54 29 300 9720 -30.1 -37.1 50 7.0 -31.2 265 23 343.0 343.1 295.5 345.0 0.53 30 285 10082 -33.5 -38.4 61 4.9 -34.1 259 24 343.2 343.3 295.5 345.1 0.49 31 264 10615 -37.1 -40.8 68 3.7 -37.5 251 26 345.5 345.6 296.0 347.1 0.41 32 250 10990 -39.7 -43.8 65 4.1 -40.1 245 27 347.0 347.1 296.3 348.3 0.31 33 200 12470 -51.9 -56.9 55 5.0 -52.1 265 35 350.6 350.6 296.8 351.0 0.09 34 172 13429 -60.1 -65.1 52 5.0 -60.2 262 33 352.5 352.5 297.2 352.6 0.04 35 150 14270 -66.1 -70.8 52 4.7 -66.1 260 31 356.2 356.2 298.0 356.3 0.02 36 141 14643 -68.9 -72.9 56 4.0 -68.9 357.7 357.7 298.2 357.7 0.01 37 124 15404 -72.9 -76.9 54 4.0 -72.9 363.8 363.8 299.4 363.8 0.01 38 116 15794 -74.1 -82.1 28 8.0 -74.1 368.6 368.6 300.3 368.6 0.00 39 115 15844 -74.1 -82.1 28 8.0 -74.1 369.5 369.5 300.5 369.5 0.00 40 114 15895 -74.5 -82.5 28 8.0 -74.5 369.7 369.7 300.5 369.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5826.00 m Freezing level: 538.11 mb = 5320.43 m = 17455.28 ft Wetbulb zero: 598.69 mb = 4451.72 m = 14605.19 ft Precipitable water: 2.20 inches Sfc-500 mean rel hum: 62.26 % Est. max temperature: 34.66 C = 94.39 F Sfc-Lift cond lev (LCL): 961.39 mb = 422.65 m = 1386.63 ft T: 24.04 C 700-500 lapse rate: 6.25 C/km ThetaE index: 22.09 C Layer 850.0- 700.0 mb Conv cond level (CCL): 898.00 mb = 1021.28 m = 3350.63 ft Mean mixing ratio: 19.20 g/kg Conv temperature: 32.25 C = 90.05 F Cap Strength: 3.17 C Lifted Index: -4.74 C Risk: Severe thunderstorms probable Lifted Index @300 mb: -6.04 C Lifted Index @700 mb: -0.53 C Showalter Index: -3.25 C Risk: Severe thunderstorms possible Total Totals Index: 48.30 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.70 C Cross Totals Index: 22.60 C K Index: 34.40 Risk: 60-80 % chance of thunderstorms Sweat Index: 241.40 Risk: None Energy Index: -3.67 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2134.98 J/kg Max Up Vert Vel: 65.34 m/s Conv Inhibition (B-): 125.76 J/kg Cap Strength: 3.12 C Lift Cond Lev (LCL): 939.30 mb = 627.09 m = 2057.37 ft Lev Free Conv (LFC): 704.30 mb = 3112.97 m = 10213.04 ft Equ Level (EL): 134.30 mb = 14931.07 m = 48985.85 ft B at Equ Level: 2114.93 J/kg Wind level data Storm motion: 295 at 7 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 1008 6 130 5 -3.8 3.2 | 121 12 -10.5 6.3 1 1000 74 130 7 -5.4 4.5 | 122 14 -12.0 7.6 2 925 762 180 7 0.0 7.0 | 147 12 -6.7 10.1 3 850 1501 235 7 5.7 4.0 | 173 7 -0.9 7.1 4 700 3165 245 9 8.2 3.8 | 192 7 1.5 6.9 5 500 5900 315 15 10.6 -10.6 | 332 9 4.0 -7.6 6 400 7610 220 13 8.4 10.0 | 187 13 1.7 13.0 7 300 9720 265 23 22.9 2.0 | 253 17 16.3 5.1 8 250 10990 245 27 24.5 11.4 | 231 23 17.8 14.5 9 200 12470 265 35 34.9 3.1 | 258 29 28.2 6.1 10 150 14270 260 31 30.5 5.4 | 251 25 23.9 8.4 Wind Parameters Mean winds (0-6000m): 264.7 at 9.8 knts Storm direction: 294.7 at 7.3 knts Shear (0-3000m) pos: 2.0 neg: 0.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 69.5 deg Storm rel helicity (0-3000m) pos: 36.8 neg: 0.0 tot: 36.8 m^2/s^2 ave: 12.3 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 2.9 stream: 2.2 10^-3/s Energy-Hel index: 0.45 Bulk Rich Number: 76.45 Bulk Shear: 27.93 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 ------------------------------------------------------------------------------- 500 144 7 129 14| 3.9 0.0 3.9| 14.2 0.0 14.2 28.5 0.71| 5.7 4.1 1000 162 7 138 13| 3.6 0.0 3.6| 26.1 0.0 26.1 26.1 0.76| 5.2 4.0 1500 180 7 146 12| 3.3 0.0 3.3| 32.7 0.0 32.7 21.8 0.72| 5.0 3.6 2000 196 7 154 11| 2.7 0.0 2.7| 34.0 0.0 34.0 17.0 0.73| 3.9 2.9 2500 207 7 161 10| 2.3 0.0 2.3| 35.4 0.0 35.4 14.2 0.74| 3.3 2.4 3000 216 7 166 9| 2.0 0.0 2.0| 36.8 0.0 36.8 12.3 0.75| 2.9 2.2 4000 229 8 176 8| 1.9 0.0 1.9| 43.7 0.0 43.7 10.9 0.79| 2.7 2.2 5000 246 9 192 7| 1.8 0.0 1.8| 51.8 0.0 51.8 10.4 0.83| 2.8 2.3 6000 265 10 218 5| 1.7 0.0 1.7| 61.2 -3.0 58.2 9.7 0.77| 2.9 2.2 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250427.12.gif