UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122712.upa.cvt Date: 1200Z 27 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 27 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 1012 19 27.0 22.4 76 4.6 23.7 150 3 299.1 302.2 296.4 349.0 17.09 1 1000 107 26.0 21.7 77 4.3 22.9 140 5 299.1 302.2 296.1 347.5 16.56 2 929 753 20.6 19.9 96 0.7 20.1 239 5 300.0 302.9 295.9 346.7 15.94 3 925 790 20.6 20.0 96 0.6 20.2 245 5 300.4 303.3 296.1 347.6 16.11 4 850 1520 17.6 14.5 82 3.1 15.5 15 15 304.6 306.9 294.6 341.3 12.31 5 816 1869 15.8 13.0 83 2.8 14.0 30 13 306.3 308.4 294.6 341.2 11.62 6 808 1953 16.4 10.4 68 6.0 12.6 33 12 307.8 309.6 293.7 337.6 9.85 7 723 2890 9.2 9.1 99 0.1 9.2 73 7 309.8 311.7 294.5 340.6 10.09 8 700 3159 8.4 7.1 92 1.3 7.6 85 5 311.8 313.5 294.3 339.8 9.08 9 693 3242 8.2 6.5 89 1.7 7.2 84 5 312.5 314.1 294.3 339.7 8.80 10 636 3948 6.0 0.0 65 6.0 2.7 76 5 317.7 318.9 293.6 336.9 6.03 11 580 4697 1.0 -5.0 64 6.0 -2.0 68 5 320.4 321.3 293.1 335.2 4.55 12 561 4964 -0.9 -5.5 71 4.6 -3.1 65 5 321.2 322.1 293.3 336.0 4.53 13 541 5254 -1.3 -16.3 31 15.0 -7.0 62 5 324.1 324.5 291.9 330.8 1.98 14 537 5313 -2.1 -7.1 69 5.0 -4.4 61 5 323.8 324.6 293.7 337.6 4.18 15 534 5358 -1.5 -27.5 12 26.0 -9.0 61 5 325.0 325.2 291.0 327.7 0.75 16 520 5569 -2.5 -11.5 50 9.0 -6.4 58 5 326.3 326.9 293.4 336.6 3.05 17 500 5880 -3.7 -25.7 16 22.0 -10.4 55 5 328.5 328.7 292.2 331.9 0.94 18 481 6185 -4.9 -31.9 10 27.0 -11.9 66 5 330.7 330.8 292.4 332.8 0.55 19 476 6267 -5.5 -19.5 32 14.0 -10.4 69 5 331.0 331.3 293.6 337.0 1.71 20 463 6484 -6.5 -33.5 10 27.0 -13.1 77 6 332.3 332.4 292.9 334.2 0.49 21 431 7040 -10.5 -32.5 15 22.0 -15.8 98 6 334.1 334.2 293.4 336.3 0.58 22 428 7094 -10.9 -23.9 33 13.0 -14.8 100 6 334.3 334.6 294.1 339.0 1.30 23 409 7441 -13.5 -26.5 33 13.0 -17.1 114 7 335.3 335.5 294.1 339.2 1.07 24 407 7478 -13.5 -35.5 14 22.0 -18.2 115 7 335.8 335.9 293.7 337.5 0.46 25 400 7610 -14.3 -33.3 18 19.0 -18.6 120 7 336.4 336.5 294.0 338.6 0.58 26 397 7667 -14.9 -24.9 42 10.0 -17.7 117 7 336.3 336.6 294.6 341.0 1.28 27 378 8036 -15.9 -38.9 12 23.0 -20.3 95 7 339.8 339.8 294.6 341.1 0.35 28 357 8463 -18.3 -38.3 16 20.0 -22.1 71 6 342.2 342.2 295.2 343.7 0.39 29 300 9730 -29.3 -37.3 46 8.0 -30.6 355 5 344.1 344.2 295.8 346.1 0.52 30 297 9802 -29.9 -37.9 46 8.0 -31.1 4 5 344.2 344.3 295.8 346.2 0.49 31 250 11010 -39.7 -51.7 27 12.0 -40.5 165 5 347.0 347.1 296.1 347.6 0.13 32 246 11120 -40.5 -51.5 30 11.0 -41.2 166 6 347.5 347.5 296.2 348.0 0.14 33 237 11371 -42.3 -59.3 14 17.0 -43.1 167 10 348.5 348.5 296.3 348.7 0.05 34 236 11400 -42.5 -57.5 18 15.0 -43.2 168 10 348.6 348.6 296.4 348.9 0.07 35 223 11778 -45.9 -50.3 61 4.4 -46.2 170 15 349.1 349.1 296.6 349.8 0.17 36 219 11897 -46.7 -57.7 27 11.0 -47.1 171 17 349.6 349.6 296.6 349.9 0.07 37 211 12142 -48.9 -54.9 50 6.0 -49.1 173 20 349.9 350.0 296.7 350.4 0.11 38 207 12267 -49.7 -60.7 26 11.0 -50.1 173 22 350.6 350.6 296.8 350.8 0.05 39 200 12490 -51.7 -59.7 38 8.0 -52.0 175 25 350.9 350.9 296.9 351.2 0.06 40 196 12621 -52.9 -65.9 19 13.0 -53.2 174 26 351.0 351.0 296.9 351.1 0.03 41 189 12854 -54.9 -59.4 57 4.5 -55.0 171 27 351.5 351.5 297.0 351.8 0.07 42 186 12956 -55.9 -62.9 41 7.0 -56.1 170 28 351.5 351.5 297.0 351.7 0.04 43 180 13164 -57.7 -60.9 67 3.2 -57.8 168 29 351.8 351.8 297.1 352.1 0.06 44 175 13342 -58.9 -67.9 30 9.0 -59.0 166 30 352.7 352.7 297.3 352.8 0.02 45 162 13821 -63.3 -72.3 28 9.0 -63.4 160 33 353.2 353.2 297.3 353.2 0.01 46 154 14131 -65.9 -69.4 61 3.5 -66.0 157 35 353.9 353.9 297.5 354.0 0.02 47 150 14290 -67.5 -72.4 50 4.9 -67.5 155 36 353.8 353.8 297.5 353.9 0.01 48 145 14494 -69.3 -77.3 30 8.0 -69.4 152 35 354.1 354.1 297.5 354.2 0.01 49 123 15456 -78.3 -84.3 37 6.0 -78.3 135 33 354.8 354.8 297.7 354.8 0.00 50 110 16088 -82.3 -88.3 35 6.0 -82.3 124 31 358.8 358.8 298.5 358.8 0.00 51 100 16620 -83.7 -88.7 41 5.0 -83.7 115 29 366.0 366.0 299.8 366.0 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5773.00 m Freezing level: 570.00 mb = 4837.57 m = 15871.09 ft Wetbulb zero: 603.56 mb = 4373.53 m = 14348.69 ft Precipitable water: 2.06 inches Sfc-500 mean rel hum: 73.80 % Est. max temperature: 31.77 C = 89.19 F Sfc-Lift cond lev (LCL): 946.79 mb = 586.27 m = 1923.44 ft T: 21.99 C 700-500 lapse rate: 4.45 C/km ThetaE index: 10.00 C Layer 850.0- 723.0 mb Conv cond level (CCL): 903.61 mb = 991.95 m = 3254.40 ft Mean mixing ratio: 16.24 g/kg Conv temperature: 29.42 C = 84.95 F Cap Strength: 1.20 C Lifted Index: 0.26 C Risk: Showers probable Lifted Index @300 mb: 0.59 C Lifted Index @700 mb: -1.40 C Showalter Index: 2.55 C Risk: Showers probable Total Totals Index: 39.50 C Risk: None Vertical Totals Index: 21.30 C Cross Totals Index: 18.20 C K Index: 34.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 209.00 Risk: None Energy Index: -1.76 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 117.17 J/kg Max Up Vert Vel: 15.31 m/s Conv Inhibition (B-): 26.46 J/kg Cap Strength: 1.20 C Lift Cond Lev (LCL): 928.11 mb = 760.87 m = 2496.25 ft Lev Free Conv (LFC): 773.11 mb = 2325.32 m = 7628.90 ft Equ Level (EL): 503.11 mb = 5830.88 m = 19129.94 ft B at Equ Level: 115.15 J/kg Max Parcel Lev (MPL): 313.11 mb = 9418.54 m = 30900.36 ft Wind level data Storm motion: 76 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 1012 19 150 3 -1.5 2.6 | 223 5 3.5 3.8 1 1000 107 140 5 -3.2 3.8 | 200 5 1.8 5.1 2 925 790 245 5 4.5 2.1 | 251 10 9.6 3.3 3 850 1520 15 15 -3.9 -14.5 | 355 13 1.2 -13.3 4 700 3159 85 5 -5.0 -0.4 | 184 1 0.1 0.8 5 500 5880 55 5 -4.1 -2.9 | 330 2 0.9 -1.6 6 400 7610 120 7 -6.1 3.5 | 168 5 -1.0 4.7 7 300 9730 355 5 0.4 -5.0 | 304 7 5.5 -3.7 8 250 11010 165 5 -1.3 4.8 | 212 7 3.7 6.1 9 200 12490 175 25 -2.2 24.9 | 186 26 2.9 26.1 10 150 14290 155 36 -15.2 32.6 | 163 35 -10.2 33.9 11 100 16620 115 29 -26.3 12.3 | 122 25 -21.2 13.5 Wind Parameters Mean winds (0-6000m): 46.3 at 6.9 knts Storm direction: 76.3 at 5.2 knts Shear (0-3000m) pos: 1.0 neg: 0.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): -123.4 deg Storm rel helicity (0-3000m) pos: 115.5 neg: -2.9 tot: 112.6 m^2/s^2 ave: 37.5 10^-3 m/s^2 rel: 0.73 Storm rel vorticity (0-3000m) horiz: 8.7 stream: 6.4 10^-3/s Energy-Hel index: 0.08 Bulk Rich Number: 8.51 Bulk Shear: 13.77 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 ------------------------------------------------------------------------------- 500 166 5 214 7| 4.1 0.0 4.1| 7.8 -2.9 4.9 9.9 0.24| 7.7 1.9 1000 214 5 235 10| 5.4 0.0 5.4| 31.7 -2.9 28.8 28.8 0.61| 8.6 5.2 1500 348 7 312 9| 5.9 0.0 5.9| 99.6 -2.9 96.8 64.5 0.82| 12.3 10.0 2000 15 9 340 8| 3.5 0.0 3.5|110.2 -2.9 107.4 53.7 0.79| 10.7 8.4 2500 24 9 350 7| 2.0 0.0 2.0|114.4 -2.9 111.5 44.6 0.75| 9.6 7.3 3000 26 9 351 7| 1.0 0.0 1.0|115.5 -2.9 112.6 37.5 0.73| 8.7 6.4 4000 36 8 356 5| 0.6 0.1 0.7|115.7 -2.9 112.8 28.2 0.73| 6.8 5.0 5000 43 7 360 4| 0.5 0.1 0.6|115.7 -2.9 112.9 22.6 0.73| 5.5 4.0 6000 46 7 359 4| 0.4 0.2 0.6|115.8 -2.9 113.0 18.8 0.71| 4.7 3.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251227.12.gif