UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101612.upa.cvt Date: 1200Z 16 OCT 25 Searching for VVNB... Searching the city database file for: VVNB ... Date:1200Z 16 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 1012 6 28.4 23.4 74 5.0 24.7 40 1 300.5 303.9 297.5 353.9 18.19 1 1000 116 27.6 22.6 74 5.0 24.0 85 1 300.8 304.0 297.1 352.2 17.52 2 925 805 22.6 20.2 86 2.4 20.9 115 13 302.4 305.4 296.8 350.7 16.32 3 850 1538 19.0 13.0 68 6.0 15.0 105 17 306.0 308.1 294.2 339.5 11.14 4 769 2391 12.8 10.3 85 2.5 11.2 102 14 308.3 310.2 294.2 339.5 10.29 5 700 3179 9.8 1.8 57 8.0 5.4 100 11 313.3 314.5 292.5 332.9 6.24 6 677 3456 8.4 -3.6 43 12.0 2.4 101 10 314.8 315.6 291.3 328.6 4.33 7 635 3983 5.4 -6.6 42 12.0 -0.3 103 9 317.2 317.9 291.5 329.1 3.67 8 620 4178 4.0 -1.0 70 5.0 1.3 104 8 317.8 318.9 293.3 336.1 5.74 9 615 4243 4.0 -6.0 48 10.0 -0.8 104 8 318.5 319.3 292.1 331.4 3.97 10 592 4553 2.8 -9.2 41 12.0 -2.6 105 7 320.6 321.2 292.0 331.2 3.22 11 544 5233 -1.3 -12.3 43 11.0 -5.9 107 5 323.6 324.1 292.4 332.7 2.73 12 532 5410 -2.9 -5.1 85 2.2 -4.0 108 4 323.7 324.7 294.3 339.9 4.93 13 528 5470 -2.9 -11.9 50 9.0 -6.7 108 4 324.4 325.0 292.9 334.2 2.91 14 521 5576 -3.5 -14.5 42 11.0 -7.8 109 4 324.9 325.4 292.5 333.0 2.39 15 500 5900 -5.7 -6.2 96 0.5 -6.0 110 3 326.1 327.0 294.8 342.1 4.82 16 499 5916 -5.9 -5.9 100 0.0 -5.9 110 3 326.0 327.0 294.9 342.4 4.94 17 493 6010 -6.7 -6.9 98 0.2 -6.8 109 4 326.2 327.1 294.7 341.6 4.63 18 467 6430 -8.5 -16.5 52 8.0 -11.5 105 9 329.0 329.5 293.5 336.8 2.25 19 462 6513 -8.5 -27.5 20 19.0 -13.7 105 9 330.1 330.2 292.6 333.2 0.87 20 449 6734 -8.9 -13.0 72 4.1 -10.6 103 12 332.3 332.9 295.0 343.1 3.13 21 448 6751 -8.9 -15.9 57 7.0 -11.6 103 12 332.5 333.0 294.6 341.1 2.47 22 447 6768 -8.7 -31.7 14 23.0 -14.5 102 12 332.9 333.1 293.1 335.2 0.60 23 446 6786 -8.5 -26.5 22 18.0 -13.7 102 12 333.4 333.6 293.6 337.0 0.98 24 441 6873 -8.9 -18.9 44 10.0 -12.5 102 13 334.0 334.4 294.6 340.9 1.95 25 439 6908 -8.9 -24.9 26 16.0 -13.7 101 13 334.4 334.6 294.0 338.6 1.15 26 431 7049 -9.7 -20.7 40 11.0 -13.4 100 15 335.1 335.5 294.6 341.3 1.71 27 427 7121 -9.9 -36.9 9 27.0 -15.8 99 16 335.8 335.9 293.6 337.2 0.38 28 414 7358 -11.7 -41.7 6 30.0 -17.3 97 18 336.5 336.5 293.7 337.4 0.24 29 400 7620 -13.5 -41.5 7 28.0 -18.6 95 21 337.4 337.5 293.9 338.4 0.25 30 388 7851 -14.9 -45.9 5 31.0 -19.8 88 20 338.6 338.6 294.1 339.2 0.16 31 369 8230 -16.9 -25.9 46 9.0 -19.4 77 18 340.8 341.1 295.6 345.4 1.26 32 365 8312 -17.1 -41.1 11 24.0 -21.4 74 18 341.6 341.7 295.0 342.7 0.29 33 349 8647 -19.7 -33.7 28 14.0 -22.7 64 16 342.5 342.6 295.5 344.9 0.64 34 342 8797 -21.1 -44.1 11 23.0 -24.5 60 16 342.6 342.6 295.1 343.5 0.22 35 308 9561 -27.9 -33.9 56 6.0 -29.0 36 12 343.5 343.6 295.8 346.2 0.71 36 300 9750 -28.9 -40.9 31 12.0 -30.6 30 11 344.6 344.7 295.7 346.1 0.36 37 299 9774 -28.9 -41.9 27 13.0 -30.6 29 11 345.0 345.0 295.8 346.3 0.32 38 277 10313 -33.9 -37.3 71 3.4 -34.4 8 8 345.4 345.5 296.1 347.6 0.56 39 258 10805 -38.3 -41.4 73 3.1 -38.7 349 6 346.0 346.1 296.1 347.6 0.39 40 250 11020 -39.9 -44.6 61 4.7 -40.3 340 5 346.7 346.8 296.2 347.9 0.29 41 242 11242 -41.5 -49.5 42 8.0 -42.1 345 5 347.6 347.6 296.3 348.3 0.17 42 218 11945 -47.7 -51.6 64 3.9 -47.9 1 6 348.5 348.6 296.4 349.2 0.15 43 200 12510 -52.7 -58.7 48 6.0 -52.9 15 7 349.3 349.3 296.5 349.6 0.07 44 199 12542 -53.1 -60.1 42 7.0 -53.3 18 7 349.2 349.2 296.5 349.4 0.06 45 193 12738 -54.3 -65.3 25 11.0 -54.5 35 7 350.3 350.3 296.7 350.5 0.03 46 160 13909 -64.3 -68.7 55 4.4 -64.4 139 5 352.7 352.7 297.3 352.8 0.02 47 158 13985 -65.1 -70.1 50 5.0 -65.1 146 5 352.7 352.7 297.2 352.7 0.02 48 150 14300 -66.5 -74.5 32 8.0 -66.5 175 5 355.5 355.5 297.8 355.6 0.01 49 146 14463 -67.5 -75.5 31 8.0 -67.5 174 5 356.6 356.6 298.0 356.6 0.01 50 100 16670 -79.7 -85.7 36 6.0 -79.7 165 11 373.7 373.7 301.2 373.8 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5784.00 m Freezing level: 559.22 mb = 5017.13 m = 16460.20 ft Wetbulb zero: 639.35 mb = 3926.37 m = 12881.63 ft Precipitable water: 1.97 inches Sfc-500 mean rel hum: 63.56 % Est. max temperature: 33.34 C = 92.02 F Sfc-Lift cond lev (LCL): 941.52 mb = 648.52 m = 2127.68 ft T: 23.74 C 700-500 lapse rate: 5.70 C/km ThetaE index: 25.35 C Layer 1000.0- 635.0 mb Conv cond level (CCL): 862.60 mb = 1410.47 m = 4627.46 ft Mean mixing ratio: 16.88 g/kg Conv temperature: 33.31 C = 91.96 F Cap Strength: 1.41 C Lifted Index: -3.26 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.32 C Lifted Index @700 mb: -1.18 C Showalter Index: 1.28 C Risk: Showers probable Total Totals Index: 43.40 C Risk: None Vertical Totals Index: 24.70 C Cross Totals Index: 18.70 C K Index: 29.70 Risk: 40-60 % chance of thunderstorms Sweat Index: 193.00 Risk: None Energy Index: 0.46 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 629.15 J/kg Max Up Vert Vel: 35.47 m/s Conv Inhibition (B-): 32.60 J/kg Cap Strength: 1.41 C Lift Cond Lev (LCL): 910.90 mb = 938.13 m = 3077.83 ft Lev Free Conv (LFC): 815.90 mb = 1886.81 m = 6190.23 ft Equ Level (EL): 175.90 mb = 13317.33 m = 43691.49 ft B at Equ Level: 624.48 J/kg Max Parcel Lev (MPL): 105.90 mb = 16335.52 m = 53593.58 ft Wind level data Storm motion: 135 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 1012 6 40 1 -0.6 -0.8 | 322 7 4.5 -5.9 1 1000 116 85 1 -1.0 -0.1 | 321 7 4.2 -5.2 2 925 805 115 13 -11.8 5.5 | 93 7 -6.6 0.4 3 850 1538 105 17 -16.4 4.4 | 86 11 -11.3 -0.7 4 700 3179 100 11 -10.8 1.9 | 61 7 -5.7 -3.2 5 500 5900 110 3 -2.8 1.0 | 330 5 2.3 -4.1 6 400 7620 95 21 -20.9 1.8 | 78 16 -15.8 -3.3 7 300 9750 30 11 -5.5 -9.5 | 1 15 -0.3 -14.6 8 250 11020 340 5 1.7 -4.7 | 325 12 6.9 -9.8 9 200 12510 15 7 -1.8 -6.8 | 344 12 3.4 -11.9 10 150 14300 175 5 -0.4 5.0 | 271 5 4.7 -0.1 11 100 16670 165 11 -2.8 10.6 | 203 6 2.3 5.5 Wind Parameters Mean winds (0-6000m): 104.6 at 9.7 knts Storm direction: 134.6 at 7.3 knts Shear (0-3000m) pos: 2.4 neg: 0.6 tot: 3.0 10-3/s Storm rel Dir Shear (0-3000m): 102.3 deg Storm rel helicity (0-3000m) pos: 15.2 neg: -10.8 tot: 4.4 m^2/s^2 ave: 1.5 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 1.2 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 129.84 Bulk Shear: 4.85 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 98 4 341 5| 7.6 0.0 7.6| 8.3 -0.2 8.1 16.2 0.82| 7.9 6.4 1000 113 8 42 3| 7.1 0.0 7.1| 15.2 -0.6 14.6 14.6 0.76| 7.6 5.8 1500 110 10 72 5| 4.7 1.1 5.9| 15.2 -2.7 12.5 8.3 0.58| 6.2 3.6 2000 108 12 77 6| 3.6 0.6 4.2| 15.2 -5.6 9.6 4.8 0.47| 5.1 2.4 2500 107 12 77 7| 2.8 0.5 3.4| 15.2 -8.3 6.9 2.8 0.38| 4.4 1.7 3000 106 12 76 7| 2.4 0.6 3.0| 15.2 -10.8 4.4 1.5 0.30| 4.0 1.2 4000 105 12 72 7| 1.4 0.5 1.9| 15.2 -13.6 1.6 0.4 0.19| 3.4 0.7 5000 105 11 67 6| 0.9 0.4 1.2| 15.2 -16.3 -1.1 -0.2 0.08| 3.0 0.2 6000 105 10 58 5| 0.6 0.3 0.9| 16.1 -18.6 -2.6 -0.4 0.03| 2.8 0.1 Wrote GIF file: /home/apache/climate/data/raob//VVNB/skewt/VVNB.skewt.20251016.12.gif