UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120900.upa.cvt Date: 0000Z 9 DEC 25 Searching for VTBC... Searching the city database file for: VTBC ... Date:0000Z 9 DEC 25 Station: VTBC WMO ident: 48480 Latitude: 12.60 Longitude: 102.12 Elevation: 4.00 ------------------------------------------------------------------------------- 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 4 22.0 15.0 64 7.0 17.5 40 6 294.2 296.1 290.2 324.8 10.66 1 1000 97 21.6 14.6 64 7.0 17.1 35 13 294.8 296.6 290.2 324.9 10.50 2 939 640 17.8 13.1 74 4.7 14.8 36 17 296.2 298.1 290.4 325.5 10.14 3 927 750 19.8 11.8 60 8.0 14.8 39 16 299.4 301.1 290.9 327.0 9.42 4 925 769 19.6 11.6 60 8.0 14.6 40 16 299.4 301.0 290.7 326.7 9.31 5 850 1493 15.0 10.3 73 4.7 12.1 75 10 301.9 303.6 291.5 329.4 9.29 6 765 2375 8.6 7.1 90 1.5 7.7 100 8 304.2 305.7 291.5 329.1 8.30 7 760 2430 9.8 2.8 62 7.0 5.9 97 8 306.1 307.2 290.2 324.8 6.17 8 751 2529 10.0 0.0 50 10.0 4.8 91 8 307.3 308.3 289.7 323.0 5.10 9 740 2652 14.0 -20.0 8 34.0 1.5 84 7 313.0 313.2 287.6 316.5 1.05 10 733 2732 14.6 -27.4 4 42.0 1.0 79 7 314.5 314.6 287.6 316.4 0.55 11 700 3121 13.4 -22.6 7 36.0 0.6 65 7 317.3 317.5 288.9 320.4 0.89 12 674 3438 12.0 -22.0 8 34.0 -0.2 79 7 319.2 319.4 289.5 322.6 0.97 13 578 4701 2.6 -27.4 9 30.0 -6.4 98 8 322.6 322.7 290.3 325.0 0.70 14 520 5549 -1.3 -47.3 2 46.0 -10.1 106 16 327.8 327.8 291.2 328.2 0.10 15 500 5860 -3.7 -37.7 5 34.0 -11.4 110 18 328.5 328.6 291.6 329.7 0.30 16 428 7066 -10.9 -43.9 5 33.0 -16.8 107 19 334.3 334.3 293.0 335.0 0.18 17 400 7580 -14.5 -48.5 4 34.0 -19.6 105 20 336.1 336.2 293.4 336.6 0.12 18 349 8597 -22.7 -50.7 6 28.0 -25.9 114 22 338.4 338.5 294.0 338.9 0.10 19 311 9433 -28.7 -58.7 4 30.0 -31.0 125 20 341.4 341.4 294.7 341.6 0.04 20 300 9690 -30.3 -51.3 11 21.0 -32.3 130 18 342.7 342.7 295.1 343.1 0.11 21 257 10771 -38.3 -41.5 72 3.2 -38.7 142 11 346.4 346.5 296.2 347.9 0.39 22 251 10933 -39.5 -47.5 42 8.0 -40.2 136 8 346.9 347.0 296.1 347.8 0.21 23 250 10960 -39.7 -45.7 53 6.0 -40.2 135 8 347.0 347.1 296.2 348.1 0.26 24 237 11324 -42.9 -49.9 46 7.0 -43.3 141 9 347.6 347.6 296.3 348.3 0.17 25 229 11556 -44.1 -61.1 13 17.0 -44.8 145 9 349.2 349.2 296.5 349.3 0.04 26 200 12450 -52.5 -63.5 25 11.0 -52.8 155 11 349.6 349.6 296.6 349.8 0.04 27 175 13297 -59.9 -64.6 54 4.7 -60.0 139 12 351.1 351.1 296.9 351.2 0.04 28 169 13513 -61.3 -70.3 29 9.0 -61.4 134 13 352.3 352.3 297.1 352.3 0.02 29 153 14121 -67.1 -71.8 51 4.7 -67.1 126 20 352.5 352.5 297.2 352.6 0.02 30 150 14240 -68.1 -72.2 56 4.1 -68.1 125 22 352.8 352.8 297.3 352.8 0.01 31 144 14484 -70.3 -73.3 64 3.0 -70.3 126 26 353.1 353.1 297.3 353.1 0.01 32 133 14954 -73.1 -83.1 20 10.0 -73.1 128 32 356.2 356.2 298.0 356.2 0.00 33 122 15455 -77.1 -87.1 19 10.0 -77.1 126 37 357.8 357.8 298.2 357.8 0.00 34 100 16580 -83.5 -91.5 23 8.0 -83.5 90 39 366.4 366.4 299.9 366.4 0.00 35 96 16808 -84.9 -92.9 23 8.0 -84.9 90 36 368.0 368.0 300.2 368.0 0.00 36 79 17884 -86.7 -93.7 27 7.0 -86.7 90 24 385.3 385.3 303.1 385.3 0.00 37 71 18471 -86.3 -92.3 33 6.0 -86.3 90 18 398.1 398.1 304.9 398.1 0.00 38 70 18550 -84.1 -92.1 23 8.0 -84.1 90 17 404.5 404.5 305.8 404.5 0.00 39 66 18882 -77.3 -88.3 16 11.0 -77.3 74 17 426.1 426.1 308.4 426.1 0.00 40 60 19434 -73.5 -89.5 7 16.0 -73.6 48 18 446.4 446.4 310.5 446.4 0.00 41 56 19840 -70.9 -89.9 4 19.0 -71.0 30 19 461.2 461.2 311.9 461.2 0.00 TRP 96 16808 -84.9 -92.9 23 8.0 -84.9 368.0 368.0 300.2 368.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5763.00 m Freezing level: 539.33 mb = 5266.22 m = 17277.40 ft Wetbulb zero: 680.80 mb = 3353.92 m = 11003.55 ft Precipitable water: 1.05 inches Sfc-500 mean rel hum: 34.65 % Est. max temperature: 29.28 C = 84.70 F Sfc-Lift cond lev (LCL): 911.91 mb = 891.07 m = 2923.43 ft T: 18.82 C 700-500 lapse rate: 6.24 C/km ThetaE index: 12.98 C Layer 765.0- 700.0 mb Conv cond level (CCL): 788.24 mb = 2124.57 m = 6970.28 ft Mean mixing ratio: 10.11 g/kg Conv temperature: 31.34 C = 88.41 F Cap Strength: 10.98 C Lifted Index: 9.70 C Risk: None Lifted Index @300 mb: 12.86 C Lifted Index @700 mb: 10.74 C Showalter Index: 7.82 C Risk: None Total Totals Index: 32.70 C Risk: None Vertical Totals Index: 18.70 C Cross Totals Index: 14.00 C K Index: -7.00 Risk: None Sweat Index: 161.60 Risk: None Energy Index: 0.30 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.35 J/kg Max Up Vert Vel: 6.53 m/s Conv Inhibition (B-): 12052.45 J/kg Cap Strength: 10.97 C Lift Cond Lev (LCL): 873.81 mb = 1256.49 m = 4122.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 109 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 4 40 6 -3.9 -4.6 | 333 8 3.7 -7.2 1 1000 97 35 13 -7.5 -10.6 | 360 13 0.1 -13.3 2 976 305 35 16 -9.2 -13.1 | 6 16 -1.7 -15.7 3 942 610 35 17 -9.8 -13.9 | 8 17 -2.2 -16.6 4 925 769 40 16 -10.3 -12.3 | 11 15 -2.8 -14.9 5 909 914 40 15 -9.6 -11.5 | 9 14 -2.1 -14.1 6 850 1493 75 10 -9.7 -2.6 | 22 6 -2.2 -5.2 7 847 1524 75 10 -9.7 -2.6 | 22 6 -2.2 -5.2 8 787 2134 115 8 -7.3 3.4 | 199 1 0.3 0.7 9 706 3048 60 7 -6.1 -3.5 | 347 6 1.4 -6.1 10 700 3121 65 7 -6.3 -3.0 | 348 6 1.2 -5.6 11 655 3658 90 7 -7.0 0.0 | 349 3 0.5 -2.6 12 586 4572 100 7 -6.9 1.2 | 337 2 0.6 -1.4 13 564 4877 95 10 -10.0 0.9 | 54 3 -2.5 -1.8 14 523 5486 105 16 -15.5 4.1 | 101 8 -7.9 1.5 15 500 5860 110 18 -16.9 6.2 | 111 10 -9.4 3.5 16 485 6096 110 17 -16.0 5.8 | 111 9 -8.5 3.2 17 400 7580 105 20 -19.3 5.2 | 102 12 -11.8 2.5 18 398 7620 105 20 -19.3 5.2 | 102 12 -11.8 2.5 19 323 9144 120 23 -19.9 11.5 | 126 15 -12.4 8.9 20 300 9690 130 18 -13.8 11.6 | 145 11 -6.3 8.9 21 261 10668 145 12 -6.9 9.8 | 185 7 0.6 7.2 22 250 10960 135 8 -5.7 5.7 | 212 4 1.9 3.0 23 208 12192 155 10 -4.2 9.1 | 207 7 3.3 6.4 24 200 12450 155 11 -4.6 10.0 | 201 8 2.9 7.3 25 163 13716 130 13 -10.0 8.4 | 157 6 -2.4 5.7 26 150 14240 125 22 -18.0 12.6 | 134 14 -10.5 10.0 27 126 15240 130 37 -28.3 23.8 | 135 30 -20.8 21.1 28 102 16459 105 36 -34.8 9.3 | 104 28 -27.3 6.7 29 100 16580 90 39 -39.0 0.0 | 85 32 -31.5 -2.6 30 96 16808 31 70 18550 90 17 -17.0 0.0 | 74 10 -9.5 -2.6 32 54 19812 20 19 -6.5 -17.9 | 357 21 1.0 -20.5 33 51 20117 25 12 -5.1 -10.9 | 350 14 2.4 -13.5 Wind Parameters Mean winds (0-6000m): 79.3 at 10.6 knts Storm direction: 109.3 at 8.0 knts Shear (0-3000m) pos: 2.8 neg: 2.6 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 14.8 deg Storm rel helicity (0-3000m) pos: 32.8 neg: -2.6 tot: 30.2 m^2/s^2 ave: 10.1 10^-3 m/s^2 rel: 0.36 Storm rel vorticity (0-3000m) horiz: 6.3 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.63 Bulk Shear: 13.11 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 35 14 3 14| 0.0 11.0 11.0| 20.1 0.0 20.1 40.3 0.63| 11.1 7.1 1000 37 15 6 15| 1.9 5.5 7.4| 26.2 -1.4 24.9 24.9 0.52| 7.9 4.1 1500 42 14 9 13| 3.8 3.7 7.5| 31.4 -1.4 30.0 20.0 0.43| 7.9 3.4 2000 50 13 12 11| 4.1 2.7 6.9| 32.7 -1.4 31.4 15.7 0.41| 7.3 3.0 2500 57 12 15 9| 3.3 2.5 5.8| 32.8 -1.4 31.4 12.6 0.43| 6.7 2.9 3000 59 11 14 9| 2.8 2.6 5.4| 32.8 -2.6 30.2 10.1 0.36| 6.3 2.2 4000 64 10 12 7| 2.5 2.0 4.5| 33.2 -2.8 30.4 7.6 0.32| 5.2 1.7 5000 70 10 14 6| 2.1 1.7 3.8| 35.2 -2.9 32.3 6.5 0.36| 4.7 1.7 6000 79 11 32 5| 2.2 1.4 3.6| 43.2 -2.9 40.4 6.7 0.39| 4.6 1.8 Wrote GIF file: /home/apache/climate/data/raob//VTBC/skewt/VTBC.skewt.20251209.00.gif