UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for VTUN... Searching the city database file for: VTUN ... Date:0000Z 17 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 91 SFC 989 181 25.0 23.1 89 1.9 23.6 360 2 299.1 302.4 297.2 352.5 18.28 2 927 756 22.0 20.1 89 1.9 20.6 84 21 301.6 304.6 296.5 349.3 16.18 3 925 775 22.0 19.9 88 2.1 20.5 85 21 301.8 304.7 296.4 349.0 16.01 4 908 937 22.8 17.8 73 5.0 19.3 90 22 304.2 306.9 295.9 346.7 14.27 5 850 1510 18.6 17.4 93 1.2 17.8 80 11 305.6 308.4 296.7 350.2 14.87 6 779 2253 13.4 13.2 99 0.2 13.3 87 14 307.8 310.1 295.5 345.1 12.34 7 767 2385 14.4 8.4 67 6.0 10.7 89 14 310.2 311.9 293.8 338.0 9.06 8 700 3153 9.8 5.3 74 4.5 7.1 100 18 313.3 314.9 293.9 338.2 8.01 9 622 4127 4.8 2.1 83 2.7 3.2 100 16 318.4 319.8 294.6 341.2 7.18 10 595 4489 3.2 -2.8 65 6.0 0.1 104 15 320.6 321.6 293.7 337.6 5.24 11 586 4613 2.6 0.1 84 2.5 1.2 106 15 321.3 322.6 294.9 342.6 6.59 12 518 5601 -3.7 -7.8 73 4.1 -5.6 114 16 325.2 326.0 294.0 338.9 4.11 13 500 5880 -5.1 -6.1 93 1.0 -5.6 125 18 326.8 327.8 295.0 343.0 4.86 14 465 6446 -9.1 -9.1 100 0.0 -9.1 122 17 328.7 329.5 295.0 342.6 4.13 15 411 7394 -13.3 -15.9 81 2.6 -14.3 112 17 335.1 335.6 295.4 344.5 2.69 16 400 7600 -13.9 -18.9 66 5.0 -15.6 110 17 336.9 337.4 295.4 344.6 2.15 17 399 7619 -13.9 -18.9 66 5.0 -15.6 115 19 337.2 337.6 295.5 344.8 2.15 18 384 7910 -15.7 -24.7 46 9.0 -18.3 118 19 338.5 338.8 295.1 343.4 1.34 19 377 8049 -16.9 -21.9 65 5.0 -18.4 119 19 338.7 339.1 295.5 345.1 1.76 20 300 9730 -28.5 -38.5 38 10.0 -30.0 115 18 345.2 345.3 296.0 347.0 0.46 21 298 9778 -28.9 -38.9 38 10.0 -30.4 115 18 345.3 345.4 296.0 347.1 0.44 22 261 10705 -36.7 -48.7 28 12.0 -37.7 129 11 347.2 347.2 296.2 347.9 0.18 23 250 11000 -39.3 -47.3 42 8.0 -39.9 170 9 347.6 347.7 296.3 348.5 0.21 24 212 12109 -49.1 -52.9 64 3.8 -49.3 193 9 349.2 349.2 296.5 349.7 0.13 25 206 12297 -50.7 -55.4 57 4.7 -50.9 197 11 349.5 349.5 296.6 349.9 0.10 26 200 12490 -52.1 -58.1 48 6.0 -52.3 200 14 350.3 350.3 296.8 350.6 0.07 27 166 13670 -61.7 -68.7 39 7.0 -61.8 190 13 353.4 353.4 297.4 353.5 0.02 28 156 14052 -65.1 -69.5 54 4.4 -65.1 210 12 353.9 353.9 297.5 354.0 0.02 29 150 14290 -67.1 -73.1 42 6.0 -67.1 225 12 354.5 354.5 297.6 354.6 0.01 30 137 14830 -71.5 -77.5 40 6.0 -71.5 167 6 356.0 356.0 297.9 356.1 0.01 31 118 15696 -77.7 -78.9 83 1.2 -77.7 93 6 360.1 360.1 298.7 360.2 0.01 32 100 16630 -82.5 -85.7 58 3.2 -82.5 55 13 368.3 368.3 300.2 368.3 0.00 33 95 16916 -83.3 -86.9 53 3.6 -83.3 70 15 372.2 372.2 300.9 372.2 0.00 34 87 17410 -79.3 -85.3 37 6.0 -79.3 79 16 389.7 389.7 303.8 389.7 0.00 35 82 17744 -81.3 -88.3 30 7.0 -81.3 85 17 392.3 392.3 304.1 392.3 0.00 36 77 18102 -76.1 -86.1 19 10.0 -76.2 92 18 410.2 410.2 306.5 410.3 0.00 37 73 18408 -77.7 -87.7 18 10.0 -77.7 100 20 413.2 413.2 306.9 413.2 0.00 38 70 18650 -75.3 -87.3 14 12.0 -75.3 110 22 423.3 423.3 308.1 423.3 0.00 39 69 18734 -74.9 -87.9 12 13.0 -75.0 109 22 425.9 425.9 308.4 425.9 0.00 40 65 19087 -68.7 -89.7 3 21.0 -68.8 104 24 446.8 446.8 310.6 446.8 0.00 41 58 19774 -67.1 -89.1 3 22.0 -67.3 95 26 465.2 465.2 312.3 465.2 0.00 42 50 20670 -68.3 -89.3 3 21.0 -68.5 90 23 482.5 482.5 313.7 482.6 0.00 43 31 23613 -57.1 -86.1 1 29.0 -58.3 88 39 583.5 583.5 319.8 583.5 0.01 44 30 23820 -57.9 -85.9 2 28.0 -59.0 85 42 586.8 586.8 320.0 586.8 0.01 45 25 24971 -57.5 -86.5 1 29.0 -58.9 91 39 619.4 619.4 321.5 619.4 0.01 TRP 95 16916 -83.3 -86.9 53 3.6 -83.3 70 15 372.2 372.2 300.9 372.2 0.00 WND Sounding variables and indices 1000-500 mb thick: 5789.00 m Freezing level: 557.94 mb = 5020.36 m = 16470.78 ft Wetbulb zero: 574.08 mb = 4777.21 m = 15673.06 ft Precipitable water: 2.23 inches Sfc-500 mean rel hum: 80.97 % Est. max temperature: 31.84 C = 89.31 F Sfc-Lift cond lev (LCL): 962.41 mb = 423.04 m = 1387.92 ft T: 23.74 C 700-500 lapse rate: 5.46 C/km ThetaE index: 12.20 C Layer 779.0- 700.0 mb Conv cond level (CCL): 853.85 mb = 1470.76 m = 4825.25 ft Mean mixing ratio: 16.27 g/kg Conv temperature: 31.42 C = 88.56 F Cap Strength: 2.62 C Lifted Index: -2.01 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 0.07 C Lifted Index @700 mb: -0.71 C Showalter Index: -2.19 C Risk: Severe thunderstorms possible Total Totals Index: 46.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 22.50 C K Index: 36.60 Risk: > 80 % chance of thunderstorms Sweat Index: 248.80 Risk: None Energy Index: -1.50 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 335.96 J/kg Max Up Vert Vel: 25.92 m/s Conv Inhibition (B-): 47.93 J/kg Cap Strength: 2.62 C Lift Cond Lev (LCL): 902.77 mb = 987.17 m = 3238.71 ft Lev Free Conv (LFC): 807.77 mb = 1944.39 m = 6379.14 ft Equ Level (EL): 767.77 mb = 2376.34 m = 7796.31 ft B at Equ Level: 32.84 J/kg Max Parcel Lev (MPL): 127.77 mb = 15234.64 m = 49981.80 ft Wind level data Storm motion: 128 at 12 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 ---------------------------------------------------------- 0 989 181 360 2 -0.0 -2.0 | 315 13 9.1 -9.2 1 942 610 75 18 -17.4 -4.7 | 35 14 -8.3 -11.9 2 925 775 85 21 -20.9 -1.8 | 53 15 -11.8 -9.0 3 910 914 90 22 -22.0 0.0 | 61 15 -12.9 -7.2 4 850 1510 80 11 -10.8 -1.9 | 11 9 -1.7 -9.1 5 849 1524 80 11 -10.8 -1.9 | 11 9 -1.7 -9.1 6 790 2134 85 13 -13.0 -1.1 | 25 9 -3.8 -8.3 7 709 3048 100 17 -16.7 3.0 | 61 9 -7.6 -4.3 8 700 3153 100 18 -17.7 3.1 | 65 10 -8.6 -4.1 9 658 3658 95 17 -16.9 1.5 | 54 10 -7.8 -5.7 10 588 4572 105 15 -14.5 3.9 | 58 6 -5.4 -3.3 11 566 4877 115 16 -14.5 6.8 | 85 5 -5.4 -0.4 12 525 5486 110 15 -14.1 5.1 | 67 5 -5.0 -2.1 13 500 5880 125 18 -14.7 10.3 | 119 6 -5.6 3.1 14 486 6096 125 17 -13.9 9.8 | 118 5 -4.8 2.5 15 400 7600 110 17 -16.0 5.8 | 79 7 -6.9 -1.4 16 399 7620 115 19 -17.2 8.0 | 96 8 -8.1 0.8 17 325 9144 130 19 -14.6 12.2 | 133 7 -5.5 5.0 18 300 9730 115 18 -16.3 7.6 | 93 7 -7.2 0.4 19 262 10668 125 11 -9.0 6.3 | 354 1 0.1 -0.9 20 250 11000 170 9 -1.6 8.9 | 258 8 7.5 1.7 21 209 12192 195 9 2.3 8.7 | 263 12 11.4 1.5 22 200 12490 200 14 4.8 13.2 | 247 15 13.9 5.9 23 164 13716 190 13 2.3 12.8 | 244 13 11.4 5.6 24 150 14290 225 12 8.5 8.5 | 266 18 17.6 1.3 25 127 15240 120 2 -1.7 1.0 | 310 10 7.4 -6.2 26 103 16459 45 12 -8.5 -8.5 | 358 16 0.6 -15.7 27 100 16630 55 13 -10.6 -7.5 | 6 15 -1.5 -14.7 28 95 16916 70 15 -14.1 -5.1 | 22 13 -5.0 -12.3 29 75 18288 95 19 -18.9 1.7 | 61 11 -9.8 -5.6 30 70 18650 110 22 -20.7 7.5 | 92 12 -11.6 0.3 31 58 19812 95 26 -25.9 2.3 | 74 18 -16.8 -4.9 32 50 20670 90 23 -23.0 0.0 | 63 16 -13.9 -7.2 33 45 21336 90 26 -26.0 0.0 | 67 18 -16.9 -7.2 34 35 22860 100 29 -28.6 5.0 | 84 20 -19.5 -2.2 35 30 23820 85 42 -41.8 -3.7 | 72 34 -32.7 -10.9 36 26 24384 90 40 -40.0 0.0 | 77 32 -30.9 -7.2 37 21 25298 95 37 -36.9 3.2 | 82 28 -27.8 -4.0 Wind Parameters Mean winds (0-6000m): 98.4 at 15.5 knts Storm direction: 128.4 at 11.6 knts Shear (0-3000m) pos: 4.1 neg: 1.0 tot: 5.1 10-3/s Storm rel Dir Shear (0-3000m): 108.7 deg Storm rel helicity (0-3000m) pos: 122.6 neg: -27.3 tot: 95.4 m^2/s^2 ave: 31.8 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 8.0 stream: 4.4 10^-3/s Energy-Hel index: 0.23 Bulk Rich Number: 44.72 Bulk Shear: 7.51 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 71 11 8 11| 19.6 0.0 19.6| 86.9 0.0 86.9 173.8 0.98| 23.7 23.2 1000 81 16 34 12| 8.8 0.0 8.8|103.4 -12.3 91.1 91.1 0.72| 16.5 11.9 1500 82 15 31 11| 5.8 1.9 7.8|104.2 -27.3 77.0 51.3 0.47| 13.2 6.2 2000 83 14 29 10| 4.9 1.5 6.3|109.0 -27.3 81.7 40.9 0.49| 10.4 5.1 2500 84 14 30 10| 4.4 1.2 5.5|116.0 -27.3 88.7 35.5 0.53| 8.9 4.7 3000 87 15 35 10| 4.1 1.0 5.1|122.6 -27.3 95.4 31.8 0.55| 8.0 4.4 4000 90 15 40 9| 3.0 0.9 3.8|123.6 -31.6 92.0 23.0 0.49| 6.5 3.1 5000 94 15 45 9| 2.4 0.7 3.1|128.1 -32.8 95.4 19.1 0.48| 5.7 2.7 6000 98 15 51 8| 2.1 0.6 2.7|135.7 -34.5 101.3 16.9 0.49| 5.4 2.6 Wrote GIF file: /home/apache/climate/data/raob//VTUN/skewt/VTUN.skewt.20251017.00.gif