UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 17 OCT 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 1008 19 28.2 24.0 78 4.2 25.1 85 3 300.7 304.1 298.0 356.4 18.96 1 1000 69 28.2 23.3 75 4.9 24.6 85 5 301.4 304.7 297.7 355.3 18.30 2 947 552 24.6 22.6 89 2.0 23.2 85 12 302.4 305.8 298.2 357.3 18.53 3 930 711 25.2 21.3 79 3.9 22.3 85 14 304.6 307.8 298.0 356.5 17.40 4 925 759 24.8 21.1 80 3.7 22.1 85 15 304.7 307.9 298.0 356.2 17.28 5 850 1497 19.4 16.1 81 3.3 17.1 80 19 306.5 309.0 296.1 347.5 13.67 6 700 3145 9.4 7.4 87 2.0 8.2 60 19 312.9 314.7 294.7 341.6 9.27 7 681 3373 7.8 6.9 94 0.9 7.2 62 19 313.6 315.3 294.8 342.2 9.21 8 662 3607 7.6 4.8 82 2.8 5.9 65 19 315.9 317.5 294.7 341.6 8.18 9 651 3746 8.6 -4.4 39 13.0 2.0 66 19 318.6 319.4 292.3 332.3 4.24 10 623 4108 5.2 1.8 79 3.4 3.2 70 19 318.7 320.1 294.6 341.1 7.02 11 622 4121 5.2 1.9 79 3.3 3.3 71 19 318.8 320.2 294.7 341.4 7.08 12 614 4227 4.8 0.6 74 4.2 2.5 72 19 319.6 320.8 294.4 340.5 6.53 13 611 4268 5.4 -9.6 33 15.0 -1.4 72 19 320.7 321.3 291.9 330.7 3.02 14 599 4430 4.6 -16.4 20 21.0 -3.6 74 19 321.6 321.9 291.0 327.6 1.77 15 594 4498 3.8 -7.2 44 11.0 -1.4 75 19 321.4 322.2 292.7 333.8 3.75 16 569 4847 1.4 -3.6 69 5.0 -1.2 78 19 322.6 323.6 294.2 339.4 5.16 17 552 5092 0.0 -4.4 72 4.4 -2.2 81 19 323.7 324.7 294.4 340.2 5.01 18 510 5723 -3.5 -6.0 83 2.5 -4.7 88 19 326.9 327.9 295.0 342.9 4.80 19 500 5880 -4.5 -8.3 75 3.8 -6.2 90 19 327.6 328.4 294.6 341.3 4.09 20 476 6264 -6.9 -13.9 57 7.0 -9.7 97 17 329.2 329.8 294.0 338.6 2.74 21 441 6855 -9.9 -11.3 89 1.4 -10.5 107 13 332.7 333.4 295.6 345.3 3.66 22 428 7084 -10.9 -13.5 81 2.6 -11.9 111 12 334.3 334.9 295.6 345.3 3.16 23 426 7120 -11.1 -17.1 61 6.0 -13.3 112 12 334.5 335.0 295.0 342.8 2.35 24 413 7357 -12.5 -16.4 73 3.9 -14.0 116 10 335.7 336.2 295.4 344.7 2.57 25 411 7394 -12.1 -16.7 69 4.6 -13.8 116 10 336.6 337.2 295.6 345.6 2.52 26 400 7600 -13.7 -19.7 60 6.0 -15.7 120 9 337.2 337.6 295.4 344.4 2.01 27 398 7638 -14.1 -19.1 66 5.0 -15.8 118 9 337.1 337.6 295.4 344.7 2.12 28 384 7910 -15.3 -33.3 20 18.0 -19.3 107 9 339.0 339.2 294.6 341.3 0.60 29 371 8169 -17.3 -25.3 50 8.0 -19.6 95 8 339.7 340.0 295.4 344.6 1.32 30 362 8353 -18.5 -32.5 28 14.0 -21.6 87 8 340.5 340.7 295.1 343.2 0.69 31 350 8604 -20.5 -30.5 40 10.0 -22.8 76 8 341.1 341.3 295.4 344.4 0.86 32 348 8647 -20.7 -24.9 69 4.2 -21.8 74 8 341.4 341.7 295.9 346.8 1.46 33 328 9083 -23.5 -31.5 48 8.0 -25.2 54 8 343.4 343.6 295.8 346.6 0.84 34 321 9240 -24.9 -28.4 73 3.5 -25.7 47 7 343.6 343.8 296.1 347.9 1.15 35 313 9424 -25.9 -39.9 26 14.0 -28.0 39 7 344.7 344.8 295.8 346.2 0.38 36 312 9447 -26.1 -33.1 52 7.0 -27.5 38 7 344.7 344.9 296.1 347.6 0.75 37 310 9493 -26.5 -31.5 63 5.0 -27.5 36 7 344.8 345.0 296.2 348.2 0.89 38 300 9730 -28.1 -34.1 56 6.0 -29.2 25 7 345.8 345.9 296.3 348.5 0.71 39 287 10046 -30.3 -36.3 56 6.0 -31.3 31 7 347.0 347.2 296.5 349.4 0.60 40 267 10554 -34.7 -37.9 73 3.2 -35.1 41 7 347.9 348.0 296.6 350.0 0.55 41 264 10633 -35.1 -42.1 49 7.0 -35.9 43 7 348.4 348.5 296.6 349.9 0.36 42 250 11010 -38.1 -45.1 48 7.0 -38.8 50 7 349.4 349.5 296.7 350.5 0.27 43 220 11874 -45.5 -49.1 67 3.6 -45.7 4 10 351.0 351.1 297.0 351.9 0.20 44 213 12088 -47.5 -52.0 60 4.5 -47.7 353 11 351.2 351.2 297.0 351.8 0.15 45 200 12500 -50.9 -57.9 43 7.0 -51.1 330 13 352.2 352.2 297.2 352.5 0.08 46 183 13074 -55.9 -64.9 32 9.0 -56.1 325 14 353.1 353.1 297.3 353.2 0.03 47 157 14032 -64.5 -68.1 61 3.6 -64.6 317 15 354.3 354.3 297.6 354.4 0.03 48 154 14150 -65.7 -70.1 54 4.4 -65.7 316 15 354.2 354.2 297.5 354.3 0.02 49 150 14310 -66.9 -71.8 50 4.9 -67.0 315 15 354.8 354.8 297.7 354.9 0.02 50 139 14765 -70.7 -76.7 41 6.0 -70.7 314 14 356.0 356.0 297.9 356.0 0.01 51 119 15667 -78.7 -81.1 68 2.4 -78.7 312 13 357.4 357.4 298.2 357.5 0.00 52 107 16265 -83.3 -86.8 54 3.5 -83.3 311 11 359.8 359.8 298.7 359.8 0.00 53 102 16530 -84.3 -88.4 48 4.1 -84.3 310 11 362.8 362.8 299.2 362.8 0.00 54 100 16640 -83.7 -88.7 41 5.0 -83.7 325 7 366.0 366.0 299.8 366.0 0.00 TRP 102 16530 -84.3 -88.4 48 4.1 -84.3 310 11 362.8 362.8 299.2 362.8 0.00 WND Sounding variables and indices 1000-500 mb thick: 5811.00 m Freezing level: 552.00 mb = 5091.54 m = 16704.33 ft Wetbulb zero: 612.08 mb = 4253.16 m = 13953.77 ft Precipitable water: 2.35 inches Sfc-500 mean rel hum: 75.95 % Est. max temperature: 33.82 C = 92.88 F Sfc-Lift cond lev (LCL): 948.78 mb = 535.08 m = 1755.50 ft T: 24.72 C 700-500 lapse rate: 5.08 C/km ThetaE index: 15.70 C Layer 930.0- 681.0 mb Conv cond level (CCL): 868.31 mb = 1310.98 m = 4301.07 ft Mean mixing ratio: 18.02 g/kg Conv temperature: 33.57 C = 92.43 F Cap Strength: 2.19 C Lifted Index: -3.70 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.98 C Lifted Index @700 mb: -2.81 C Showalter Index: -0.65 C Risk: Thunderstorms probable Total Totals Index: 44.50 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.90 C Cross Totals Index: 20.60 C K Index: 38.00 Risk: > 80 % chance of thunderstorms Sweat Index: 250.20 Risk: None Energy Index: -1.25 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1279.71 J/kg Max Up Vert Vel: 50.59 m/s Conv Inhibition (B-): 40.35 J/kg Cap Strength: 2.19 C Lift Cond Lev (LCL): 909.92 mb = 902.44 m = 2960.73 ft Lev Free Conv (LFC): 834.92 mb = 1648.92 m = 5409.77 ft Equ Level (EL): 134.92 mb = 14938.28 m = 49009.50 ft B at Equ Level: 1278.87 J/kg Wind level data Storm motion: 105 at 13 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 1008 19 85 3 -3.0 -0.3 | 291 10 9.7 -3.8 1 1000 69 85 5 -5.0 -0.4 | 297 9 7.8 -3.9 2 925 759 85 15 -14.9 -1.3 | 25 5 -2.2 -4.8 3 850 1497 80 19 -18.7 -3.3 | 41 9 -6.0 -6.8 4 700 3145 60 19 -16.5 -9.5 | 16 14 -3.7 -13.0 5 500 5880 90 19 -19.0 0.0 | 61 7 -6.3 -3.5 6 400 7600 120 9 -7.8 4.5 | 259 5 4.9 1.0 7 300 9730 25 7 -3.0 -6.3 | 315 14 9.8 -9.9 8 250 11010 50 7 -5.4 -4.5 | 317 11 7.4 -8.0 9 200 12500 330 13 6.5 -11.3 | 308 24 19.2 -14.8 10 150 14310 315 15 10.6 -10.6 | 301 27 23.3 -14.1 11 102 16530 310 11 8.4 -7.1 | 297 24 21.2 -10.6 12 100 16640 325 7 4.0 -5.7 | 299 19 16.7 -9.2 Wind Parameters Mean winds (0-6000m): 75.4 at 17.6 knts Storm direction: 105.4 at 13.2 knts Shear (0-3000m) pos: 0.0 neg: 2.8 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 86.4 deg Storm rel helicity (0-3000m) pos: 18.0 neg: -13.1 tot: 4.9 m^2/s^2 ave: 1.6 10^-3 m/s^2 rel: 0.30 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 1.2 10^-3/s Energy-Hel index: 0.14 Bulk Rich Number: 94.41 Bulk Shear: 13.56 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 85 8 309 7| 0.0 8.8 8.8| 10.4 0.0 10.4 20.8 0.69| 8.8 6.1 1000 85 11 339 5| 0.0 6.9 6.9| 16.0 0.0 16.0 16.0 0.75| 7.0 5.2 1500 83 13 5 5| 0.0 5.5 5.5| 18.0 0.0 18.0 12.0 0.68| 5.6 3.8 2000 81 15 17 6| 0.0 4.1 4.1| 18.0 -4.0 14.0 7.0 0.53| 4.7 2.5 2500 79 16 21 7| 0.0 3.3 3.3| 18.0 -8.3 9.7 3.9 0.40| 4.2 1.7 3000 76 16 21 8| 0.0 2.8 2.8| 18.0 -13.1 4.9 1.6 0.30| 3.8 1.2 4000 73 17 21 9| 0.3 2.1 2.4| 25.3 -14.1 11.2 2.8 0.33| 3.3 1.1 5000 73 17 24 9| 0.6 1.7 2.3| 32.6 -14.1 18.5 3.7 0.39| 3.0 1.2 6000 75 18 28 9| 0.9 1.4 2.2| 38.6 -14.1 24.5 4.1 0.42| 2.9 1.2 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251017.12.gif