UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:0000Z 18 OCT 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 1014 6 26.2 23.4 85 2.8 24.2 0 0 298.2 301.5 296.8 351.0 18.15 1 1000 127 25.2 23.1 88 2.1 23.7 0 0 298.4 301.6 296.8 351.0 18.07 2 925 811 21.6 20.1 91 1.5 20.5 100 7 301.4 304.4 296.4 349.1 16.22 3 896 1087 19.4 19.4 100 0.0 19.4 100 9 301.9 304.8 296.4 349.1 16.02 4 850 1541 16.8 15.0 89 1.8 15.6 100 11 303.7 306.1 294.7 341.6 12.72 5 834 1703 15.6 15.0 96 0.6 15.2 100 11 304.1 306.5 295.0 342.7 12.97 6 792 2141 14.6 9.6 72 5.0 11.4 98 10 307.6 309.4 293.4 336.4 9.52 7 783 2238 15.0 4.0 48 11.0 8.7 98 10 309.0 310.3 291.5 329.1 6.52 8 773 2347 14.4 6.4 59 8.0 9.6 98 10 309.5 311.0 292.7 333.5 7.82 9 761 2479 14.4 -3.6 29 18.0 5.4 97 10 310.9 311.6 289.7 323.1 3.85 10 755 2546 13.4 6.4 63 7.0 9.2 97 10 310.5 312.0 293.1 335.2 8.01 11 745 2658 12.8 5.8 62 7.0 8.6 97 10 311.1 312.5 293.1 335.1 7.79 12 700 3180 10.2 -9.8 23 20.0 1.3 95 9 313.8 314.3 289.4 322.2 2.59 13 681 3408 9.0 1.0 57 8.0 4.6 99 9 314.9 316.1 292.8 334.0 6.05 14 621 4167 5.4 -8.6 36 14.0 -1.0 111 7 319.2 319.8 291.6 329.8 3.21 15 581 4707 1.4 -13.6 32 15.0 -4.7 120 6 320.7 321.1 291.3 328.4 2.30 16 563 4959 -0.9 -8.9 55 8.0 -4.5 124 5 320.9 321.5 292.3 332.3 3.46 17 539 5306 -1.7 -19.7 24 18.0 -7.9 130 4 323.9 324.2 291.5 329.1 1.49 18 500 5900 -5.3 -24.3 21 19.0 -11.1 140 3 326.6 326.8 291.8 330.4 1.07 19 483 6171 -6.7 -27.7 17 21.0 -12.5 126 5 328.1 328.3 292.0 331.0 0.81 20 477 6269 -7.5 -19.5 38 12.0 -11.6 121 5 328.3 328.6 292.9 334.3 1.71 21 465 6467 -8.1 -25.1 24 17.0 -13.1 111 6 329.9 330.2 292.7 333.8 1.07 22 423 7194 -13.9 -26.9 32 13.0 -17.3 73 10 331.6 331.8 293.1 335.2 1.00 23 412 7395 -12.9 -38.9 9 26.0 -18.0 62 12 335.4 335.4 293.4 336.6 0.32 24 400 7620 -14.3 -42.3 7 28.0 -19.2 50 13 336.4 336.4 293.6 337.3 0.23 25 362 8366 -19.9 -35.9 23 16.0 -22.9 57 16 338.7 338.8 294.4 340.6 0.49 26 343 8763 -21.9 -48.9 7 27.0 -25.3 61 17 341.2 341.2 294.7 341.7 0.13 27 341 8806 -22.1 -46.1 9 24.0 -25.4 61 17 341.5 341.5 294.8 342.2 0.18 28 300 9730 -30.1 -49.1 14 19.0 -32.0 70 21 343.0 343.0 295.1 343.6 0.15 29 285 10093 -33.5 -48.5 21 15.0 -34.9 60 20 343.2 343.2 295.3 343.8 0.16 30 250 11000 -40.9 -53.9 23 13.0 -41.7 35 19 345.3 345.3 295.7 345.7 0.10 31 233 11476 -44.9 -59.9 17 15.0 -45.5 29 18 346.2 346.2 295.8 346.4 0.05 32 200 12480 -53.5 -62.5 33 9.0 -53.7 15 17 348.0 348.1 296.3 348.2 0.04 33 196 12609 -54.7 -62.7 37 8.0 -54.9 11 16 348.2 348.2 296.3 348.3 0.04 34 188 12874 -56.9 -63.9 41 7.0 -57.1 3 14 348.8 348.8 296.4 348.9 0.04 35 177 13252 -59.1 -70.1 23 11.0 -59.2 352 12 351.2 351.2 296.9 351.3 0.02 36 175 13323 -59.1 -73.1 15 14.0 -59.3 349 11 352.4 352.4 297.1 352.4 0.01 37 150 14270 -66.5 -76.5 23 10.0 -66.5 320 5 355.5 355.5 297.8 355.6 0.01 38 122 15497 -75.3 -81.3 39 6.0 -75.3 1 6 361.1 361.1 298.9 361.1 0.00 39 114 15889 -76.9 -81.9 45 5.0 -76.9 14 6 365.2 365.2 299.7 365.2 0.00 40 103 16471 -78.3 -84.3 37 6.0 -78.3 34 7 373.3 373.3 301.1 373.3 0.00 41 100 16640 -78.5 -84.5 37 6.0 -78.5 40 7 376.1 376.1 301.6 376.1 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5773.00 m Freezing level: 570.04 mb = 4860.13 m = 15945.12 ft Wetbulb zero: 632.04 mb = 4021.69 m = 13194.36 ft Precipitable water: 1.84 inches Sfc-500 mean rel hum: 57.45 % Est. max temperature: 31.23 C = 88.21 F Sfc-Lift cond lev (LCL): 973.97 mb = 358.41 m = 1175.86 ft T: 23.98 C 700-500 lapse rate: 5.70 C/km ThetaE index: 13.65 C Layer 792.0- 773.0 mb Conv cond level (CCL): 914.92 mb = 906.12 m = 2972.79 ft Mean mixing ratio: 17.16 g/kg Conv temperature: 29.62 C = 85.31 F Cap Strength: 0.98 C Lifted Index: -2.39 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.82 C Lifted Index @700 mb: -0.43 C Showalter Index: 0.83 C Risk: Thunderstorms probable Total Totals Index: 42.40 C Risk: None Vertical Totals Index: 22.10 C Cross Totals Index: 20.30 C K Index: 17.10 Risk: < 20 % chance of thunderstorms Sweat Index: 205.00 Risk: None Energy Index: -2.12 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 677.95 J/kg Max Up Vert Vel: 36.82 m/s Conv Inhibition (B-): 6.46 J/kg Cap Strength: 0.98 C Lift Cond Lev (LCL): 938.36 mb = 685.16 m = 2247.88 ft Lev Free Conv (LFC): 893.36 mb = 1112.82 m = 3650.93 ft Equ Level (EL): 773.36 mb = 2342.87 m = 7686.49 ft B at Equ Level: 42.37 J/kg Wind level data Storm motion: 132 at 5 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 1014 6 0 0 -0.0 -0.0 | 312 5 3.9 -3.5 1 1000 127 0 0 -0.0 -0.0 | 312 5 3.9 -3.5 2 925 811 100 7 -6.9 1.2 | 53 4 -3.0 -2.3 3 850 1541 100 11 -10.8 1.9 | 77 7 -6.9 -1.6 4 700 3180 95 9 -9.0 0.8 | 62 6 -5.0 -2.7 5 500 5900 140 3 -1.9 2.3 | 301 2 2.0 -1.2 6 400 7620 50 13 -10.0 -8.4 | 27 13 -6.0 -11.8 7 300 9730 70 21 -19.7 -7.2 | 56 19 -15.8 -10.7 8 250 11000 35 19 -10.9 -15.6 | 20 20 -7.0 -19.1 9 200 12480 15 17 -4.4 -16.4 | 1 20 -0.5 -19.9 10 150 14270 320 5 3.2 -3.8 | 316 10 7.1 -7.3 11 100 16640 40 7 -4.5 -5.4 | 4 9 -0.6 -8.9 Wind Parameters Mean winds (0-6000m): 101.6 at 7.0 knts Storm direction: 131.6 at 5.2 knts Shear (0-3000m) pos: 1.4 neg: 0.2 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): 112.0 deg Storm rel helicity (0-3000m) pos: 15.2 neg: -2.5 tot: 12.8 m^2/s^2 ave: 4.3 10^-3 m/s^2 rel: 0.63 Storm rel vorticity (0-3000m) horiz: 2.6 stream: 1.7 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 138.59 Bulk Shear: 4.89 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 55 1 328 5| 4.0 0.0 4.0| 6.4 0.0 6.4 12.8 0.95| 4.5 4.3 1000 100 4 357 3| 4.2 0.0 4.2| 13.2 0.0 13.2 13.2 0.92| 5.5 5.0 1500 100 6 35 3| 2.8 0.9 3.7| 15.2 0.0 15.2 10.1 0.83| 4.6 3.8 2000 100 7 52 4| 2.1 0.6 2.7| 15.2 -0.7 14.5 7.2 0.76| 3.6 2.8 2500 99 8 58 4| 1.7 0.4 2.0| 15.2 -1.6 13.6 5.4 0.69| 3.0 2.1 3000 99 8 60 5| 1.4 0.2 1.6| 15.2 -2.5 12.8 4.3 0.63| 2.6 1.7 4000 99 8 61 5| 0.8 0.2 1.0| 15.8 -2.7 13.0 3.3 0.55| 2.4 1.3 5000 101 8 60 4| 0.5 0.1 0.6| 15.8 -3.0 12.8 2.6 0.43| 2.2 0.9 6000 102 7 55 4| 0.3 0.1 0.4| 15.8 -3.3 12.6 2.1 0.34| 2.1 0.7 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251018.00.gif