UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102000.upa.cvt Date: 0000Z 20 OCT 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 20 OCT 25 Station: VTUN WMO ident: 48431 Latitude: 14.97 Longitude: 102.83 Elevation: 181.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 82 SFC 988 181 25.0 22.1 84 2.9 22.9 30 3 299.2 302.3 296.5 349.4 17.19 2 925 767 23.0 18.5 76 4.5 19.8 70 19 302.8 305.5 295.8 346.2 14.64 3 881 1191 21.0 16.4 75 4.6 17.8 75 17 305.0 307.5 295.6 345.1 13.44 4 850 1501 18.6 14.9 79 3.7 16.1 80 14 305.6 308.0 295.1 343.5 12.64 5 773 2310 12.8 12.8 100 0.0 12.8 89 10 307.8 310.1 295.4 344.4 12.11 6 700 3139 7.2 7.2 100 0.0 7.2 90 12 310.5 312.2 294.0 338.5 9.15 7 695 3198 7.0 7.0 100 0.0 7.0 92 12 310.9 312.6 294.0 338.8 9.09 8 693 3222 6.6 4.7 88 1.9 5.5 92 12 310.7 312.2 292.9 334.6 7.75 9 683 3342 8.2 3.7 73 4.5 5.6 96 11 313.8 315.2 293.5 336.7 7.33 10 661 3612 7.0 3.2 77 3.8 4.8 103 9 315.4 316.8 293.9 338.3 7.31 11 648 3776 7.2 -1.8 53 9.0 2.4 107 9 317.4 318.4 292.8 334.0 5.18 12 624 4086 5.2 -1.8 61 7.0 1.5 114 9 318.5 319.6 293.3 335.8 5.38 13 577 4724 2.6 -10.4 38 13.0 -3.1 116 8 322.7 323.3 292.4 332.7 3.00 14 557 5009 0.6 -13.4 34 14.0 -5.1 101 7 323.6 324.1 292.2 331.9 2.44 15 541 5242 -0.9 -8.9 55 8.0 -4.6 93 8 324.5 325.3 293.4 336.6 3.61 16 537 5302 -0.7 -16.7 29 16.0 -6.8 91 8 325.5 325.9 292.3 332.1 1.93 17 523 5513 -2.3 -10.3 54 8.0 -5.8 86 8 326.0 326.7 293.6 337.2 3.34 18 512 5682 -2.7 -22.7 20 20.0 -9.2 92 8 327.5 327.8 292.2 331.8 1.20 19 500 5870 -3.7 -17.7 33 14.0 -8.9 100 8 328.5 328.9 293.1 335.1 1.90 20 461 6504 -7.9 -12.9 67 5.0 -9.9 108 8 331.0 331.6 294.7 341.6 3.08 21 442 6828 -9.9 -20.9 40 11.0 -13.5 110 8 332.5 332.8 293.9 338.3 1.64 22 434 6968 -10.9 -15.9 67 5.0 -12.8 111 9 333.0 333.5 294.8 341.9 2.55 23 416 7292 -11.7 -29.7 21 18.0 -16.3 113 9 336.0 336.2 294.0 338.9 0.78 24 401 7571 -13.9 -23.9 43 10.0 -16.9 115 9 336.7 337.0 294.7 341.7 1.38 25 400 7590 -13.7 -25.7 36 12.0 -17.1 115 9 337.2 337.4 294.7 341.5 1.18 26 393 7724 -13.7 -29.7 25 16.0 -17.8 113 10 338.9 339.1 294.8 342.0 0.83 27 348 8638 -20.5 -39.5 17 19.0 -23.8 92 8 341.7 341.8 295.1 343.1 0.36 28 300 9720 -28.9 -47.9 14 19.0 -31.0 50 3 344.6 344.7 295.6 345.3 0.17 29 282 10160 -31.5 -50.5 14 19.0 -33.3 132 3 347.1 347.1 296.1 347.6 0.13 30 250 11000 -38.9 -53.9 19 15.0 -39.9 260 7 348.2 348.3 296.3 348.7 0.10 31 235 11422 -42.5 -57.5 18 15.0 -43.3 255 8 349.0 349.0 296.5 349.3 0.07 32 222 11803 -45.9 -49.8 65 3.9 -46.2 250 9 349.5 349.5 296.7 350.3 0.18 33 209 12203 -49.1 -65.1 14 16.0 -49.6 245 10 350.6 350.6 296.8 350.7 0.03 34 200 12490 -51.5 -56.4 56 4.9 -51.7 260 10 351.2 351.2 297.0 351.6 0.09 35 197 12588 -52.3 -55.4 69 3.1 -52.4 258 10 351.5 351.5 297.0 351.9 0.11 36 192 12753 -53.9 -66.9 19 13.0 -54.2 255 10 351.5 351.5 297.0 351.6 0.02 37 188 12888 -55.1 -67.1 21 12.0 -55.4 252 10 351.7 351.7 297.0 351.8 0.02 38 151 14250 -66.5 -71.5 49 5.0 -66.5 226 8 354.9 354.9 297.7 354.9 0.02 39 150 14290 -66.7 -71.7 49 5.0 -66.7 225 8 355.2 355.2 297.7 355.3 0.02 40 148 14371 -67.7 -73.7 42 6.0 -67.7 222 8 354.8 354.8 297.7 354.9 0.01 41 143 14577 -68.7 -79.7 19 11.0 -68.8 213 8 356.6 356.6 298.0 356.6 0.00 42 133 15006 -72.3 -78.3 40 6.0 -72.3 196 9 357.6 357.6 298.2 357.7 0.01 43 112 15995 -80.3 -86.3 36 6.0 -80.3 191 8 360.7 360.7 298.8 360.7 0.00 44 103 16465 -82.5 -88.5 35 6.0 -82.5 140 7 365.2 365.2 299.7 365.2 0.00 45 100 16630 -81.9 -87.9 35 6.0 -81.9 115 11 369.5 369.5 300.5 369.5 0.00 46 85 17537 -84.3 -88.9 44 4.6 -84.3 82 8 382.2 382.2 302.6 382.2 0.00 47 82 17740 -78.7 -86.7 26 8.0 -78.7 74 8 397.6 397.6 304.9 397.6 0.00 48 78 18026 -77.9 -85.9 26 8.0 -77.9 64 7 405.0 405.0 305.9 405.0 0.00 49 72 18486 -76.5 -87.5 16 11.0 -76.6 83 9 417.3 417.3 307.4 417.4 0.00 50 70 18650 -74.3 -88.3 10 14.0 -74.3 105 11 425.4 425.4 308.3 425.4 0.00 51 66 18996 -70.1 -90.1 4 20.0 -70.2 103 13 441.8 441.8 310.1 441.8 0.00 52 60 19563 -69.7 -88.7 5 19.0 -69.8 101 17 454.9 454.9 311.3 454.9 0.00 53 58 19765 -70.3 -89.3 5 19.0 -70.4 100 19 458.0 458.0 311.6 458.0 0.00 54 50 20650 -68.5 -89.5 3 21.0 -68.7 90 13 482.1 482.1 313.6 482.1 0.00 55 43 21554 -68.1 -90.1 3 22.0 -68.4 87 17 504.3 504.3 315.2 504.3 0.00 56 36 22641 -59.9 -87.9 1 28.0 -60.7 98 24 551.8 551.8 318.2 551.8 0.00 57 30 23790 -55.7 -85.7 1 30.0 -57.2 105 27 592.8 592.8 320.3 592.8 0.01 58 27 24465 -53.3 -84.3 1 31.0 -55.4 101 28 617.7 617.7 321.4 617.8 0.01 59 23 25495 -54.3 -84.3 1 30.0 -56.4 98 27 643.7 643.7 322.4 643.8 0.01 TRP 103 16465 -82.5 -88.5 35 6.0 -82.5 140 7 365.2 365.2 299.7 365.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5788.00 m Freezing level: 550.60 mb = 5102.17 m = 16739.19 ft Wetbulb zero: 608.93 mb = 4285.05 m = 14058.39 ft Precipitable water: 1.94 inches Sfc-500 mean rel hum: 69.55 % Est. max temperature: 31.76 C = 89.16 F Sfc-Lift cond lev (LCL): 947.48 mb = 553.49 m = 1815.89 ft T: 23.73 C 700-500 lapse rate: 3.99 C/km ThetaE index: 5.90 C Layer 925.0- 773.0 mb Conv cond level (CCL): 834.96 mb = 1653.18 m = 5423.75 ft Mean mixing ratio: 15.24 g/kg Conv temperature: 31.84 C = 89.31 F Cap Strength: 2.70 C Lifted Index: 0.32 C Risk: Showers probable Lifted Index @300 mb: 1.08 C Lifted Index @700 mb: -2.55 C Showalter Index: 1.67 C Risk: Showers probable Total Totals Index: 40.90 C Risk: None Vertical Totals Index: 22.30 C Cross Totals Index: 18.60 C K Index: 37.20 Risk: > 80 % chance of thunderstorms Sweat Index: 214.80 Risk: None Energy Index: -1.60 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 99.13 J/kg Max Up Vert Vel: 14.08 m/s Conv Inhibition (B-): 62.25 J/kg Cap Strength: 2.70 C Lift Cond Lev (LCL): 884.08 mb = 1161.07 m = 3809.22 ft Lev Free Conv (LFC): 789.08 mb = 2135.00 m = 7004.51 ft Equ Level (EL): 649.08 mb = 3762.14 m = 12342.82 ft B at Equ Level: 90.67 J/kg Max Parcel Lev (MPL): 329.08 mb = 9045.65 m = 29676.97 ft Wind level data Storm motion: 118 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 ---------------------------------------------------------- 0 988 181 30 3 -1.5 -2.6 | 319 8 5.5 -6.3 1 942 610 65 19 -17.2 -8.0 | 41 16 -10.2 -11.8 2 925 767 70 19 -17.9 -6.5 | 47 15 -10.9 -10.2 3 909 914 70 19 -17.9 -6.5 | 47 15 -10.9 -10.2 4 850 1501 80 14 -13.8 -2.4 | 48 9 -6.8 -6.2 5 848 1524 80 14 -13.8 -2.4 | 48 9 -6.8 -6.2 6 789 2134 90 9 -9.0 0.0 | 28 4 -2.0 -3.7 7 708 3048 85 12 -12.0 -1.0 | 46 7 -5.0 -4.8 8 700 3139 90 12 -12.0 0.0 | 53 6 -5.0 -3.7 9 657 3658 105 9 -8.7 2.3 | 51 2 -1.7 -1.4 10 587 4572 125 8 -6.6 4.6 | 207 1 0.4 0.9 11 565 4877 105 7 -6.8 1.8 | 353 2 0.2 -1.9 12 524 5486 85 8 -8.0 -0.7 | 13 5 -1.0 -4.4 13 500 5870 100 8 -7.9 1.4 | 21 3 -0.9 -2.3 14 486 6096 105 8 -7.7 2.1 | 24 2 -0.7 -1.7 15 400 7590 115 9 -8.2 3.8 | 93 1 -1.2 0.1 16 398 7620 115 10 -9.1 4.2 | 103 2 -2.1 0.5 17 324 9144 80 7 -6.9 -1.2 | 359 5 0.1 -4.9 18 300 9720 50 3 -2.3 -1.9 | 320 7 4.7 -5.7 19 262 10668 230 3 2.3 1.9 | 281 9 9.3 -1.8 20 250 11000 260 7 6.9 1.2 | 280 14 13.9 -2.5 21 209 12192 245 10 9.1 4.2 | 268 16 16.0 0.5 22 200 12490 260 10 9.8 1.7 | 277 17 16.8 -2.0 23 164 13716 235 9 7.4 5.2 | 264 14 14.4 1.4 24 150 14290 225 8 5.7 5.7 | 261 13 12.6 1.9 25 127 15240 185 9 0.8 9.0 | 236 9 7.8 5.2 26 103 16459 195 8 2.1 7.7 | 246 10 9.1 4.0 27 103 16465 140 7 -4.5 5.4 | 237 3 2.5 1.6 28 100 16630 115 11 -10.0 4.6 | 107 3 -3.0 0.9 29 75 18288 55 6 -4.9 -3.4 | 344 7 2.1 -7.2 30 70 18650 105 11 -10.6 2.8 | 76 4 -3.6 -0.9 31 58 19812 100 19 -18.7 3.3 | 88 12 -11.7 -0.4 32 50 20650 90 13 -13.0 0.0 | 58 7 -6.0 -3.7 33 45 21336 85 15 -14.9 -1.3 | 58 9 -8.0 -5.0 34 35 22860 100 25 -24.6 4.3 | 92 18 -17.6 0.6 35 30 23790 105 27 -26.1 7.0 | 100 19 -19.1 3.3 36 26 24384 100 28 -27.6 4.9 | 93 21 -20.6 1.1 37 18 25908 95 26 -25.9 2.3 | 86 19 -18.9 -1.5 Wind Parameters Mean winds (0-6000m): 88.1 at 10.6 knts Storm direction: 118.1 at 7.9 knts Shear (0-3000m) pos: 1.6 neg: 0.3 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 94.8 deg Storm rel helicity (0-3000m) pos: 58.7 neg: -3.1 tot: 55.6 m^2/s^2 ave: 18.5 10^-3 m/s^2 rel: 0.54 Storm rel vorticity (0-3000m) horiz: 5.8 stream: 3.1 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 25.63 Bulk Shear: 3.87 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 62 12 21 10| 17.2 0.0 17.2| 50.4 0.0 50.4 100.8 0.92| 18.6 17.1 1000 67 15 36 12| 7.6 0.0 7.6| 54.9 0.0 54.9 54.9 0.82| 11.2 9.2 1500 71 15 40 11| 3.8 0.0 3.8| 55.1 -0.7 54.3 36.2 0.67| 9.0 6.0 2000 74 14 40 10| 2.1 0.0 2.1| 55.1 -3.1 51.9 26.0 0.53| 7.7 4.1 2500 76 13 40 9| 1.7 0.4 2.0| 56.4 -3.1 53.3 21.3 0.53| 6.5 3.5 3000 78 13 41 9| 1.6 0.3 1.9| 58.7 -3.1 55.6 18.5 0.54| 5.8 3.1 4000 83 12 43 7| 1.1 0.2 1.3| 59.1 -3.3 55.8 14.0 0.48| 5.1 2.4 5000 87 11 44 6| 0.8 0.4 1.2| 59.8 -3.3 56.5 11.3 0.49| 4.7 2.3 6000 88 11 41 5| 0.8 0.4 1.2| 60.6 -3.3 57.3 9.6 0.47| 4.2 2.0 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20251020.00.gif