UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120912.upa.cvt Date: 1200Z 9 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 9 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 1011 19 28.4 19.4 58 9.0 22.1 20 3 300.6 303.2 294.8 342.1 14.16 1 1000 95 28.6 18.6 55 10.0 21.6 15 7 301.8 304.3 294.8 341.9 13.61 2 925 782 22.4 17.4 73 5.0 18.9 360 9 302.2 304.7 294.9 342.5 13.64 3 857 1441 16.4 16.1 98 0.3 16.2 54 5 302.6 305.1 295.0 342.7 13.55 4 850 1511 16.2 15.4 95 0.8 15.7 60 5 303.1 305.5 294.7 341.8 13.06 5 783 2207 12.4 12.4 100 0.0 12.4 71 9 306.2 308.4 294.6 341.2 11.64 6 762 2436 11.4 11.0 97 0.4 11.2 74 11 307.6 309.6 294.4 340.5 10.89 7 742 2659 11.8 8.2 79 3.6 9.6 77 12 310.3 312.1 294.0 338.7 9.24 8 700 3146 8.6 7.8 95 0.8 8.1 85 15 312.0 313.8 294.7 341.4 9.54 9 693 3229 8.0 7.6 97 0.4 7.8 86 15 312.2 314.0 294.7 341.6 9.50 10 662 3606 6.0 4.1 88 1.9 4.9 91 14 314.1 315.6 293.9 338.4 7.78 11 656 3680 5.8 2.4 79 3.4 3.9 92 14 314.7 316.0 293.4 336.5 6.95 12 644 3832 7.4 -19.6 13 27.0 -2.4 94 14 318.2 318.4 289.5 322.5 1.25 13 636 3935 6.8 -25.2 8 32.0 -3.4 95 14 318.6 318.8 289.2 321.3 0.78 14 627 4052 5.6 -6.4 42 12.0 -0.2 96 14 318.6 319.3 291.9 330.9 3.78 15 621 4131 5.6 -10.4 31 16.0 -1.4 97 14 319.4 320.0 291.3 328.7 2.79 16 617 4184 5.0 0.9 75 4.1 2.7 98 13 319.3 320.6 294.4 340.6 6.64 17 585 4616 1.6 0.6 93 1.0 1.0 104 13 320.3 321.6 294.8 342.3 6.85 18 565 4896 0.2 -1.8 86 2.0 -0.9 107 12 321.8 323.0 294.6 341.1 5.95 19 558 4996 0.2 -5.8 64 6.0 -2.7 109 12 323.0 323.9 293.7 337.6 4.45 20 555 5039 1.2 -13.8 32 15.0 -5.0 109 12 324.7 325.1 292.4 332.7 2.37 21 526 5469 -2.7 -7.0 72 4.3 -4.7 115 12 325.0 325.9 294.1 339.3 4.30 22 508 5745 -3.9 -6.1 85 2.2 -5.0 118 11 326.8 327.7 295.0 342.7 4.78 23 500 5870 -4.3 -7.9 76 3.6 -6.0 120 11 327.8 328.6 294.8 342.0 4.22 24 481 6176 -6.1 -13.1 58 7.0 -9.0 128 12 329.2 329.8 294.1 339.2 2.90 25 451 6678 -10.1 -10.4 98 0.3 -10.2 141 14 330.3 331.1 295.1 343.4 3.85 26 437 6921 -10.9 -15.9 67 5.0 -12.8 147 15 332.3 332.8 294.6 341.1 2.53 27 415 7318 -12.9 -15.0 84 2.1 -13.7 158 16 334.7 335.3 295.4 344.7 2.88 28 406 7486 -13.3 -17.6 70 4.3 -14.9 162 17 336.3 336.8 295.4 344.6 2.36 29 404 7524 -13.1 -19.1 61 6.0 -15.2 163 17 337.0 337.4 295.4 344.5 2.09 30 400 7600 -13.1 -20.1 56 7.0 -15.4 165 17 338.0 338.4 295.5 344.9 1.94 31 363 8329 -17.9 -26.9 45 9.0 -20.3 165 14 341.1 341.3 295.6 345.4 1.16 32 338 8857 -21.9 -31.9 40 10.0 -24.1 165 12 342.6 342.8 295.7 345.6 0.78 33 318 9301 -25.1 -33.1 47 8.0 -26.7 165 11 344.2 344.4 296.0 347.1 0.74 34 300 9720 -28.7 -35.7 51 7.0 -29.9 165 9 344.9 345.1 296.0 347.3 0.61 35 250 11000 -39.7 -44.4 61 4.7 -40.1 145 13 347.0 347.1 296.3 348.2 0.29 36 236 11390 -43.5 -46.6 71 3.1 -43.7 135 14 347.1 347.1 296.2 348.1 0.25 37 231 11533 -44.1 -53.1 36 9.0 -44.6 131 14 348.3 348.3 296.4 348.8 0.12 38 224 11738 -45.9 -56.9 28 11.0 -46.4 125 15 348.6 348.6 296.4 348.9 0.08 39 213 12071 -48.9 -55.9 44 7.0 -49.2 116 16 349.0 349.0 296.5 349.4 0.09 40 200 12480 -52.5 -61.5 33 9.0 -52.8 105 17 349.6 349.6 296.6 349.8 0.05 41 197 12577 -53.3 -65.3 22 12.0 -53.6 105 18 349.9 349.9 296.6 350.0 0.03 42 174 13364 -60.5 -63.4 69 2.9 -60.6 107 23 350.6 350.7 296.8 350.8 0.04 43 169 13545 -62.3 -65.9 62 3.6 -62.4 108 24 350.6 350.6 296.8 350.7 0.03 44 150 14270 -68.7 -72.9 55 4.2 -68.7 110 29 351.7 351.7 297.0 351.8 0.01 45 136 14847 -73.9 -77.7 56 3.8 -73.9 108 29 352.5 352.5 297.2 352.6 0.01 46 126 15289 -76.5 -82.5 38 6.0 -76.5 106 28 355.6 355.6 297.8 355.6 0.00 47 108 16167 -79.7 -90.7 15 11.0 -79.7 102 27 365.6 365.6 299.8 365.6 0.00 48 100 16600 -81.5 -91.5 17 10.0 -81.5 100 27 370.3 370.3 300.6 370.3 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5775.00 m Freezing level: 546.08 mb = 5171.53 m = 16966.76 ft Wetbulb zero: 648.56 mb = 3774.18 m = 12382.32 ft Precipitable water: 2.13 inches Sfc-500 mean rel hum: 77.50 % Est. max temperature: 30.39 C = 86.71 F Sfc-Lift cond lev (LCL): 887.13 mb = 1142.76 m = 3749.16 ft T: 19.12 C 700-500 lapse rate: 4.74 C/km ThetaE index: 4.05 C Layer 850.0- 700.0 mb Conv cond level (CCL): 847.12 mb = 1539.77 m = 5051.69 ft Mean mixing ratio: 13.65 g/kg Conv temperature: 31.05 C = 87.88 F Cap Strength: 2.41 C Lifted Index: 1.57 C Risk: Showers probable Lifted Index @300 mb: 4.03 C Lifted Index @700 mb: 0.26 C Showalter Index: 1.74 C Risk: Showers probable Total Totals Index: 40.20 C Risk: None Vertical Totals Index: 20.50 C Cross Totals Index: 19.70 C K Index: 35.10 Risk: > 80 % chance of thunderstorms Sweat Index: 205.80 Risk: None Energy Index: -0.05 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.16 J/kg Max Up Vert Vel: 3.51 m/s Conv Inhibition (B-): 14.40 J/kg Cap Strength: 2.35 C Lift Cond Lev (LCL): 863.37 mb = 1377.11 m = 4518.03 ft Lev Free Conv (LFC): 808.37 mb = 1936.93 m = 6354.69 ft Equ Level (EL): 758.37 mb = 2476.04 m = 8123.38 ft B at Equ Level: 5.34 J/kg Max Parcel Lev (MPL): 738.37 mb = 2700.25 m = 8858.98 ft Wind level data Storm motion: 114 at 8 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 1011 19 20 3 -1.0 -2.8 | 314 9 6.4 -6.1 1 1000 95 15 7 -1.8 -6.8 | 331 11 5.6 -10.0 2 925 782 360 9 -0.0 -9.0 | 329 14 7.4 -12.2 3 850 1511 60 5 -4.3 -2.5 | 332 7 3.1 -5.7 4 700 3146 85 15 -14.9 -1.3 | 59 9 -7.5 -4.6 5 500 5870 120 11 -9.5 5.5 | 137 3 -2.1 2.3 6 400 7600 165 17 -4.4 16.4 | 193 14 3.0 13.2 7 300 9720 165 9 -2.3 8.7 | 223 7 5.1 5.4 8 250 11000 145 13 -7.5 10.6 | 180 7 -0.0 7.4 9 200 12480 105 17 -16.4 4.4 | 97 9 -9.0 1.2 10 150 14270 110 29 -27.3 9.9 | 109 21 -19.8 6.7 11 100 16600 100 27 -26.6 4.7 | 94 19 -19.2 1.4 Wind Parameters Mean winds (0-6000m): 83.7 at 10.8 knts Storm direction: 113.7 at 8.1 knts Shear (0-3000m) pos: 2.5 neg: 0.9 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 100.0 deg Storm rel helicity (0-3000m) pos: 31.3 neg: -2.7 tot: 28.7 m^2/s^2 ave: 9.6 10^-3 m/s^2 rel: 0.54 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.38 Bulk Shear: 16.10 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 11 7 329 12| 0.0 5.5 5.5| 8.0 -0.5 7.5 14.9 0.50| 5.9 3.0 1000 8 8 330 13| 1.0 2.8 3.8| 12.7 -1.3 11.4 11.4 0.43| 4.9 2.1 1500 13 7 331 12| 2.3 1.8 4.1| 14.0 -2.7 11.3 7.5 0.26| 5.1 1.3 2000 25 7 336 11| 2.2 1.4 3.5| 19.3 -2.7 16.6 8.3 0.39| 4.6 1.8 2500 38 8 344 10| 2.3 1.1 3.4| 24.9 -2.7 22.3 8.9 0.48| 4.4 2.1 3000 51 8 355 9| 2.5 0.9 3.5| 31.3 -2.7 28.7 9.6 0.54| 4.2 2.3 4000 67 10 13 7| 2.1 0.7 2.8| 37.2 -2.7 34.6 8.6 0.57| 3.7 2.1 5000 76 11 26 6| 1.7 0.6 2.2| 40.5 -2.7 37.9 7.6 0.58| 3.3 1.9 6000 84 11 37 6| 1.5 0.5 1.9| 43.2 -2.7 40.5 6.8 0.61| 3.0 1.8 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251209.12.gif