UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 20 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 23.3 85 2.7 24.0 225 1 298.6 301.9 297.0 351.5 18.17 1 1000 67 25.8 23.4 87 2.4 24.0 180 1 299.0 302.3 297.2 352.7 18.41 2 956 462 22.4 21.7 96 0.7 21.9 197 6 299.4 302.5 296.7 350.0 17.34 3 927 733 26.8 13.8 45 13.0 18.1 209 9 306.5 308.5 294.0 338.9 10.76 4 925 752 26.8 13.8 45 13.0 18.1 210 9 306.7 308.7 294.1 339.2 10.78 5 896 1034 25.8 15.8 54 10.0 18.9 223 12 308.5 310.9 296.0 347.0 12.70 6 850 1496 22.2 14.2 60 8.0 16.8 245 17 309.4 311.7 295.8 346.1 12.07 7 765 2402 15.2 12.0 81 3.2 13.1 242 18 311.3 313.5 296.0 346.9 11.60 8 700 3151 11.0 5.0 66 6.0 7.4 240 19 314.7 316.2 294.1 339.2 7.84 9 681 3381 10.2 -0.8 46 11.0 4.3 239 20 316.3 317.3 292.6 333.1 5.30 10 671 3504 9.2 4.2 71 5.0 6.2 239 21 316.5 318.0 294.5 340.9 7.73 11 648 3793 7.0 -3.0 49 10.0 1.8 238 22 317.2 318.1 292.3 332.3 4.73 12 613 4247 3.2 1.9 91 1.3 2.5 236 24 317.9 319.3 294.5 340.7 7.18 13 602 4394 2.4 -1.5 75 3.9 0.3 236 24 318.6 319.7 293.6 336.9 5.70 14 582 4667 0.6 0.3 98 0.3 0.4 235 26 319.6 320.9 294.6 341.2 6.74 15 578 4723 1.2 -1.8 80 3.0 -0.4 234 26 320.9 322.1 294.3 339.7 5.81 16 545 5195 -2.3 -3.3 93 1.0 -2.8 233 28 322.2 323.3 294.3 340.1 5.51 17 541 5253 -0.3 -6.3 64 6.0 -3.2 232 28 325.3 326.1 294.3 339.9 4.42 18 500 5880 -5.3 -7.5 84 2.2 -6.3 230 31 326.6 327.4 294.6 341.1 4.36 19 496 5943 -5.9 -7.6 88 1.7 -6.7 230 31 326.6 327.5 294.6 341.1 4.36 20 454 6629 -9.5 -12.9 76 3.4 -10.9 230 33 330.5 331.1 294.6 341.2 3.12 21 429 7061 -13.7 -13.8 99 0.1 -13.7 230 34 330.5 331.1 294.6 341.0 3.07 22 424 7150 -13.7 -17.4 74 3.7 -15.0 230 35 331.6 332.1 294.2 339.6 2.30 23 418 7258 -14.3 -16.4 84 2.1 -15.0 230 35 332.2 332.7 294.6 341.0 2.54 24 415 7313 -14.3 -21.3 55 7.0 -16.5 230 35 332.9 333.2 294.0 338.9 1.68 25 411 7386 -14.9 -18.8 72 3.9 -16.2 230 35 333.0 333.5 294.4 340.4 2.11 26 408 7441 -15.3 -24.3 46 9.0 -17.9 230 36 333.2 333.5 293.8 337.9 1.31 27 400 7590 -16.1 -20.1 71 4.0 -17.4 230 36 334.1 334.5 294.6 340.9 1.94 28 398 7628 -15.9 -18.1 83 2.2 -16.7 230 36 334.8 335.3 295.0 343.0 2.31 29 392 7743 -15.7 -22.7 55 7.0 -17.8 231 36 336.5 336.8 294.8 342.2 1.57 30 383 7918 -16.9 -26.9 42 10.0 -19.5 233 36 337.2 337.4 294.6 341.3 1.10 31 377 8036 -17.7 -26.7 45 9.0 -20.1 234 36 337.7 337.9 294.8 341.9 1.14 32 363 8319 -20.3 -30.3 40 10.0 -22.5 237 36 337.9 338.0 294.6 341.0 0.85 33 349 8610 -21.9 -53.9 4 32.0 -25.4 239 36 339.5 339.5 294.3 339.8 0.07 34 326 9110 -24.9 -58.9 3 34.0 -27.9 244 36 342.1 342.1 294.8 342.2 0.04 35 310 9474 -27.3 -60.3 3 33.0 -29.9 248 36 343.7 343.7 295.3 343.8 0.04 36 300 9710 -29.5 -60.5 3 31.0 -31.8 250 36 343.8 343.8 295.3 344.0 0.04 37 250 10980 -39.5 -58.5 12 19.0 -40.5 250 36 347.3 347.4 296.1 347.6 0.06 38 247 11063 -40.3 -71.3 2 31.0 -41.3 251 36 347.3 347.4 296.1 347.4 0.01 39 200 12470 -51.5 -71.5 7 20.0 -51.9 265 36 351.2 351.2 296.9 351.3 0.01 40 186 12935 -55.5 -68.5 18 13.0 -55.7 266 36 352.1 352.1 297.1 352.2 0.02 41 167 13612 -60.5 -64.4 60 3.9 -60.6 268 35 354.8 354.8 297.7 355.0 0.04 42 161 13838 -62.5 -71.5 29 9.0 -62.6 269 35 355.1 355.2 297.7 355.2 0.02 43 150 14270 -65.5 -69.7 56 4.2 -65.5 270 35 357.2 357.3 298.2 357.3 0.02 44 149 14311 -65.9 -70.0 56 4.1 -66.0 272 34 357.2 357.2 298.2 357.3 0.02 45 138 14772 -69.1 -76.1 36 7.0 -69.1 292 28 359.5 359.5 298.6 359.6 0.01 46 131 15083 -69.5 -79.5 22 10.0 -69.5 305 24 364.2 364.2 299.5 364.2 0.01 47 120 15600 -74.1 -79.1 46 5.0 -74.1 328 16 365.0 365.0 299.7 365.0 0.01 48 100 16650 -78.5 -85.5 31 7.0 -78.5 15 1 376.1 376.1 301.6 376.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5813.00 m Freezing level: 566.69 mb = 4884.73 m = 16025.82 ft Wetbulb zero: 579.90 mb = 4696.59 m = 15408.57 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 72.18 % Est. max temperature: 36.73 C = 98.11 F Sfc-Lift cond lev (LCL): 968.64 mb = 346.77 m = 1137.68 ft T: 23.39 C 700-500 lapse rate: 5.97 C/km ThetaE index: 13.78 C Layer 956.0- 925.0 mb Conv cond level (CCL): 781.77 mb = 2215.75 m = 7269.43 ft Mean mixing ratio: 15.41 g/kg Conv temperature: 38.40 C = 101.12 F Cap Strength: 6.50 C Lifted Index: -1.39 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.30 C Lifted Index @700 mb: 1.14 C Showalter Index: -0.93 C Risk: Thunderstorms probable Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.50 C Cross Totals Index: 19.50 C K Index: 35.70 Risk: > 80 % chance of thunderstorms Sweat Index: 235.40 Risk: None Energy Index: -1.00 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 270.53 J/kg Max Up Vert Vel: 23.26 m/s Conv Inhibition (B-): 319.26 J/kg Cap Strength: 6.50 C Lift Cond Lev (LCL): 887.95 mb = 1112.86 m = 3651.06 ft Lev Free Conv (LFC): 642.95 mb = 3856.87 m = 12653.60 ft Equ Level (EL): 322.95 mb = 9177.77 m = 30110.44 ft B at Equ Level: 268.30 J/kg Max Parcel Lev (MPL): 172.95 mb = 13392.02 m = 43936.54 ft Wind level data Storm motion: 265 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 1007 6 225 1 0.7 0.7 | 88 14 -13.8 -0.5 1 1000 67 180 1 0.0 1.0 | 89 14 -14.5 -0.3 2 925 752 210 9 4.5 7.8 | 123 12 -10.0 6.5 3 850 1496 245 17 15.4 7.2 | 189 6 0.9 5.9 4 700 3151 240 19 16.5 9.5 | 193 8 2.0 8.2 5 500 5880 230 31 23.7 19.9 | 206 21 9.3 18.7 6 400 7590 230 36 27.6 23.1 | 211 25 13.1 21.9 7 300 9710 250 36 33.8 12.3 | 240 22 19.3 11.1 8 250 10980 250 36 33.8 12.3 | 240 22 19.3 11.1 9 200 12470 265 36 35.9 3.1 | 265 21 21.4 1.9 10 150 14270 270 35 35.0 -0.0 | 274 21 20.5 -1.3 11 100 16650 15 1 -0.3 -1.0 | 81 15 -14.7 -2.2 Wind Parameters Mean winds (0-6000m): 235.0 at 19.4 knts Storm direction: 265.0 at 14.5 knts Shear (0-3000m) pos: 2.3 neg: 1.3 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 105.5 deg Storm rel helicity (0-3000m) pos: 52.9 neg: 0.0 tot: 52.9 m^2/s^2 ave: 17.6 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 3.9 stream: 3.2 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 7.10 Bulk Shear: 38.08 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 ------------------------------------------------------------------------------- 500 197 3 98 14| 0.0 5.4 5.4| 20.0 0.0 20.0 40.1 0.93| 6.0 5.6 1000 211 6 109 12| 3.4 2.7 6.1| 38.2 0.0 38.2 38.2 0.90| 6.4 5.8 1500 226 9 121 9| 4.6 1.8 6.4| 51.9 0.0 51.9 34.6 0.88| 7.0 6.2 2000 233 11 133 8| 3.5 1.5 5.0| 52.3 0.0 52.3 26.1 0.86| 5.4 4.7 2500 236 12 143 7| 2.8 1.4 4.2| 52.6 0.0 52.6 21.0 0.84| 4.5 3.8 3000 237 13 152 7| 2.3 1.3 3.6| 52.9 0.0 52.9 17.6 0.82| 3.9 3.2 4000 238 15 167 7| 1.7 1.5 3.2| 57.0 0.0 57.0 14.3 0.75| 3.4 2.6 5000 237 17 179 8| 1.4 1.7 3.0| 60.2 0.0 60.2 12.0 0.66| 3.2 2.2 6000 235 19 188 10| 1.2 1.8 2.9| 61.9 0.0 61.9 10.3 0.59| 3.1 1.8 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20250420.00.gif