UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122300.upa.cvt Date: 0000Z 23 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 23 DEC 25 Station: VVTS WMO ident: 48900 Latitude: 10.82 Longitude: 106.67 Elevation: 19.00 ------------------------------------------------------------------------------- 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 19 26.2 24.4 90 1.8 24.9 325 1 298.6 302.1 297.7 355.2 19.41 1 1000 84 25.4 23.8 91 1.6 24.2 320 3 298.5 302.0 297.4 353.6 18.88 2 925 767 21.0 20.7 98 0.3 20.8 295 1 300.8 303.9 296.7 350.3 16.84 3 885 1150 19.0 18.0 94 1.0 18.3 24 3 302.5 305.3 295.8 346.4 14.84 4 875 1248 20.0 16.0 78 4.0 17.2 47 4 304.6 307.0 295.3 343.9 13.18 5 850 1499 19.0 13.0 68 6.0 15.0 105 5 306.0 308.1 294.2 339.5 11.14 6 849 1509 19.0 13.0 68 6.0 15.0 104 5 306.2 308.2 294.3 339.7 11.16 7 763 2418 12.4 10.2 86 2.2 11.0 55 5 308.5 310.5 294.3 339.8 10.30 8 756 2496 12.8 9.4 80 3.4 10.7 51 5 309.8 311.6 294.3 339.8 9.84 9 741 2664 12.6 6.6 67 6.0 9.0 41 5 311.3 312.9 293.6 336.9 8.28 10 725 2848 11.4 7.3 76 4.1 8.9 31 5 312.0 313.7 294.1 339.4 8.89 11 718 2929 11.6 -0.4 43 12.0 5.2 27 5 313.0 314.0 291.5 329.3 5.18 12 700 3141 9.8 3.8 66 6.0 6.3 15 5 313.3 314.7 293.3 335.8 7.20 13 695 3201 9.4 6.4 82 3.0 7.6 17 5 313.5 315.2 294.4 340.6 8.71 14 677 3419 8.8 2.8 66 6.0 5.4 23 7 315.2 316.6 293.6 337.0 6.93 15 655 3693 7.8 1.8 66 6.0 4.4 31 9 317.1 318.4 293.9 338.3 6.67 16 653 3718 7.8 1.8 66 6.0 4.4 32 9 317.4 318.7 294.0 338.6 6.69 17 549 5126 -2.5 -2.5 100 0.0 -2.5 73 18 321.3 322.4 294.3 340.1 5.81 18 542 5228 -0.9 -4.9 74 4.0 -2.9 76 19 324.4 325.3 294.4 340.5 4.91 19 524 5498 -2.7 -5.8 79 3.1 -4.2 84 20 325.4 326.3 294.6 341.0 4.74 20 512 5682 -3.7 -9.7 63 6.0 -6.4 89 22 326.3 327.0 293.9 338.3 3.58 21 500 5870 -3.3 -21.3 23 18.0 -9.4 95 23 329.0 329.3 292.8 334.0 1.40 22 496 5933 -2.5 -29.5 10 27.0 -10.1 94 23 330.8 330.9 292.6 333.2 0.67 23 474 6291 -3.7 -47.7 2 44.0 -12.0 90 23 333.6 333.6 292.8 334.0 0.11 24 433 6995 -9.9 -50.9 2 41.0 -16.3 82 23 334.5 334.5 293.0 334.8 0.08 25 400 7600 -14.1 -54.1 2 40.0 -19.4 75 23 336.7 336.7 293.6 336.9 0.06 26 356 8474 -21.1 -57.1 2 36.0 -24.8 57 21 338.7 338.7 294.0 338.9 0.05 27 330 9031 -24.3 -62.3 2 38.0 -27.5 45 20 341.7 341.7 294.7 341.8 0.03 28 300 9720 -29.1 -63.1 2 34.0 -31.4 30 19 344.4 344.4 295.4 344.5 0.03 29 281 10182 -32.1 -58.1 6 26.0 -34.0 59 15 346.6 346.6 295.9 346.8 0.05 30 267 10538 -35.3 -53.3 14 18.0 -36.7 81 13 347.0 347.0 296.1 347.4 0.10 31 250 10990 -39.5 -50.5 30 11.0 -40.3 110 9 347.3 347.4 296.2 348.0 0.15 32 248 11045 -39.9 -50.9 30 11.0 -40.7 113 9 347.5 347.6 296.2 348.1 0.14 33 242 11211 -41.7 -45.9 64 4.2 -42.1 123 9 347.3 347.3 296.3 348.3 0.26 34 211 12123 -50.1 -51.4 86 1.3 -50.1 178 7 348.1 348.1 296.4 348.7 0.16 35 204 12342 -52.1 -55.1 70 3.0 -52.2 192 7 348.3 348.3 296.4 348.7 0.11 36 200 12470 -52.7 -61.7 33 9.0 -52.9 200 7 349.3 349.3 296.5 349.5 0.05 37 195 12633 -54.3 -60.3 48 6.0 -54.5 195 7 349.3 349.3 296.5 349.5 0.06 38 173 13392 -59.1 -70.1 23 11.0 -59.3 170 9 353.5 353.5 297.4 353.6 0.02 39 150 14270 -66.9 -76.9 23 10.0 -67.0 140 11 354.8 354.8 297.7 354.9 0.01 40 108 16174 -83.7 -85.8 69 2.1 -83.7 172 6 358.0 358.0 298.3 358.1 0.00 41 104 16383 -84.5 -87.3 61 2.8 -84.5 176 6 360.4 360.4 298.8 360.4 0.00 42 100 16600 -84.9 -88.1 56 3.2 -84.9 180 5 363.7 363.7 299.4 363.7 0.00 TRP 100 16600 -84.9 -88.1 56 3.2 -84.9 180 5 363.7 363.7 299.4 363.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5786.00 m Freezing level: 574.24 mb = 4784.13 m = 15695.78 ft Wetbulb zero: 586.60 mb = 4588.19 m = 15052.95 ft Precipitable water: 2.07 inches Sfc-500 mean rel hum: 78.64 % Est. max temperature: 33.14 C = 91.66 F Sfc-Lift cond lev (LCL): 983.41 mb = 230.57 m = 756.45 ft T: 24.46 C 700-500 lapse rate: 4.80 C/km ThetaE index: 15.67 C Layer 1000.0- 849.0 mb Conv cond level (CCL): 937.60 mb = 648.49 m = 2127.58 ft Mean mixing ratio: 17.73 g/kg Conv temperature: 28.02 C = 82.43 F Cap Strength: 0.87 C Lifted Index: -0.98 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.70 C Lifted Index @700 mb: -1.29 C Showalter Index: 3.68 C Risk: None Total Totals Index: 38.60 C Risk: None Vertical Totals Index: 22.30 C Cross Totals Index: 16.30 C K Index: 29.30 Risk: 40-60 % chance of thunderstorms Sweat Index: 189.00 Risk: None Energy Index: -1.00 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 679.56 J/kg Max Up Vert Vel: 36.87 m/s Conv Inhibition (B-): 0.63 J/kg Cap Strength: 0.82 C Lift Cond Lev (LCL): 945.95 mb = 570.83 m = 1872.78 ft Lev Free Conv (LFC): 930.95 mb = 710.87 m = 2332.21 ft Equ Level (EL): 880.95 mb = 1189.77 m = 3903.40 ft B at Equ Level: 14.92 J/kg Wind level data Storm motion: 110 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 1009 19 325 1 0.6 -0.8 | 295 8 6.9 -3.2 1 1000 84 320 3 1.9 -2.3 | 299 10 8.3 -4.7 2 925 767 295 1 0.9 -0.4 | 291 8 7.3 -2.8 3 850 1499 105 5 -4.8 1.3 | 305 2 1.5 -1.1 4 700 3141 15 5 -1.3 -4.8 | 325 9 5.1 -7.2 5 500 5870 95 23 -22.9 2.0 | 89 17 -16.5 -0.3 6 400 7600 75 23 -22.2 -6.0 | 62 18 -15.9 -8.3 7 300 9720 30 19 -9.5 -16.5 | 9 19 -3.1 -18.8 8 250 10990 110 9 -8.5 3.1 | 109 2 -2.1 0.7 9 200 12470 200 7 2.4 6.6 | 244 10 8.8 4.2 10 150 14270 140 11 -7.1 8.4 | 173 6 -0.7 6.1 11 100 16600 180 5 0.0 5.0 | 247 7 6.4 2.6 Wind Parameters Mean winds (0-6000m): 80.3 at 9.0 knts Storm direction: 110.3 at 6.8 knts Shear (0-3000m) pos: 1.1 neg: 1.2 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 32.6 deg Storm rel helicity (0-3000m) pos: 11.3 neg: -5.6 tot: 5.7 m^2/s^2 ave: 1.9 10^-3 m/s^2 rel: 0.15 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 0.5 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 46.20 Bulk Shear: 14.71 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 ------------------------------------------------------------------------------- 500 315 2 297 9| 0.0 0.9 0.9| 1.4 -2.1 -0.7 -1.5 -0.08| 3.3 -0.3 1000 319 2 297 9| 0.9 0.4 1.4| 5.7 -2.7 3.0 3.0 0.25| 3.0 0.8 1500 34 3 312 7| 2.3 0.3 2.6| 10.4 -3.2 7.2 4.8 0.24| 4.6 1.1 2000 76 3 313 5| 1.7 0.7 2.4| 11.3 -3.2 8.0 4.0 0.28| 4.1 1.1 2500 70 4 319 5| 1.4 1.0 2.4| 11.3 -3.6 7.7 3.1 0.23| 3.8 0.9 3000 59 4 324 5| 1.1 1.2 2.4| 11.3 -5.6 5.7 1.9 0.15| 3.5 0.5 4000 45 5 332 6| 1.5 0.9 2.4| 28.1 -6.3 21.8 5.5 0.34| 3.6 1.2 5000 58 7 352 6| 2.1 0.7 2.9| 57.4 -6.3 51.2 10.2 0.50| 3.9 1.9 6000 80 9 33 5| 2.5 0.6 3.1| 94.5 -8.3 86.1 14.4 0.58| 4.2 2.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251223.00.gif