UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101612.upa.cvt Date: 1200Z 16 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 16 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 1007 19 28.8 25.1 80 3.7 26.0 130 1 301.3 305.1 299.0 361.3 20.31 1 1000 60 29.4 24.4 75 5.0 25.7 110 3 302.5 306.2 298.8 360.6 19.59 2 925 753 24.2 20.1 78 4.1 21.3 90 23 304.1 307.1 297.1 352.3 16.22 3 885 1140 22.2 16.2 69 6.0 18.1 80 24 305.9 308.3 295.6 345.4 13.20 4 850 1490 19.6 15.8 79 3.8 17.0 70 25 306.7 309.2 296.0 347.0 13.40 5 787 2149 14.6 14.3 98 0.3 14.4 76 23 308.2 310.6 296.1 347.9 13.14 6 702 3115 12.2 3.2 54 9.0 7.0 85 21 315.7 317.1 293.7 337.4 6.88 7 700 3139 12.0 4.0 58 8.0 7.3 85 21 315.8 317.2 294.0 338.8 7.30 8 556 5025 0.2 -3.7 75 3.9 -1.8 102 20 323.3 324.3 294.4 340.5 5.24 9 500 5870 -3.9 -14.9 42 11.0 -8.2 110 19 328.3 328.8 293.4 336.6 2.41 10 498 5902 -3.9 -15.9 39 12.0 -8.5 110 19 328.7 329.1 293.4 336.3 2.22 11 456 6592 -8.3 -15.3 57 7.0 -11.0 110 20 331.5 332.1 294.4 340.4 2.55 12 442 6834 -9.1 -19.1 44 10.0 -12.6 110 20 333.5 333.9 294.4 340.3 1.91 13 425 7137 -11.5 -20.5 47 9.0 -14.5 110 20 334.2 334.6 294.4 340.5 1.76 14 419 7246 -12.3 -16.1 73 3.8 -13.7 110 21 334.5 335.1 295.2 343.6 2.60 15 418 7264 -12.3 -21.3 47 9.0 -15.2 110 21 334.8 335.1 294.5 340.7 1.67 16 415 7319 -12.5 -20.5 51 8.0 -15.2 110 21 335.2 335.6 294.7 341.6 1.80 17 400 7600 -13.9 -27.9 30 14.0 -17.6 110 21 336.9 337.1 294.4 340.5 0.96 18 382 7947 -16.3 -32.3 24 16.0 -19.9 112 20 338.2 338.4 294.5 340.7 0.67 19 371 8166 -17.7 -25.7 50 8.0 -19.9 114 19 339.2 339.5 295.3 343.9 1.27 20 356 8473 -19.9 -27.9 49 8.0 -21.9 116 18 340.3 340.5 295.3 344.3 1.08 21 332 8987 -23.1 -42.1 16 19.0 -26.0 120 16 342.8 342.8 295.3 343.9 0.28 22 320 9255 -25.1 -37.1 32 12.0 -27.2 122 15 343.6 343.7 295.6 345.5 0.49 23 308 9531 -26.7 -43.7 18 17.0 -29.0 124 14 345.1 345.2 295.8 346.2 0.26 24 303 9649 -27.7 -36.7 42 9.0 -29.2 124 13 345.4 345.5 296.1 347.5 0.54 25 300 9720 -28.3 -37.3 42 9.0 -29.7 125 13 345.5 345.6 296.1 347.5 0.52 26 279 10237 -32.9 -35.9 74 3.0 -33.4 103 12 346.1 346.3 296.3 348.6 0.64 27 261 10703 -37.1 -39.1 82 2.0 -37.4 83 11 346.6 346.7 296.3 348.6 0.49 28 250 11000 -39.3 -42.2 74 2.9 -39.6 70 11 347.6 347.7 296.4 349.1 0.37 29 228 11624 -44.1 -49.1 57 5.0 -44.5 35 9 349.6 349.6 296.7 350.4 0.19 30 215 12015 -46.9 -62.9 14 16.0 -47.4 13 7 351.2 351.2 296.9 351.3 0.04 31 201 12458 -50.9 -62.9 23 12.0 -51.2 347 5 351.7 351.7 297.0 351.8 0.04 32 200 12490 -51.3 -58.3 43 7.0 -51.5 345 5 351.5 351.5 297.0 351.8 0.07 33 198 12555 -51.5 -54.8 68 3.3 -51.7 343 5 352.2 352.3 297.2 352.7 0.11 34 181 13130 -56.9 -59.6 71 2.7 -57.0 324 4 352.6 352.6 297.3 352.9 0.07 35 176 13306 -58.3 -61.9 63 3.6 -58.4 318 4 353.1 353.1 297.4 353.3 0.05 36 173 13414 -59.3 -67.3 35 8.0 -59.4 315 4 353.2 353.2 297.4 353.3 0.03 37 150 14290 -66.9 -70.3 62 3.4 -67.0 285 3 354.8 354.8 297.7 354.9 0.02 38 148 14371 -67.5 -70.8 63 3.3 -67.5 280 3 355.2 355.2 297.7 355.2 0.02 39 121 15559 -77.1 -83.1 38 6.0 -77.1 200 9 358.7 358.7 298.4 358.7 0.00 40 100 16640 -82.9 -87.9 42 5.0 -82.9 125 15 367.6 367.6 300.1 367.6 0.00 TRP 100 16640 -82.9 -87.9 42 5.0 -82.9 125 15 367.6 367.6 300.1 367.6 0.00 WND Sounding variables and indices 1000-500 mb thick: 5810.00 m Freezing level: 553.27 mb = 5066.59 m = 16622.47 ft Wetbulb zero: 584.49 mb = 4616.15 m = 15144.65 ft Precipitable water: 2.24 inches Sfc-500 mean rel hum: 71.27 % Est. max temperature: 33.97 C = 93.15 F Sfc-Lift cond lev (LCL): 954.98 mb = 469.51 m = 1540.37 ft T: 26.33 C 700-500 lapse rate: 5.82 C/km ThetaE index: 15.91 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 857.79 mb = 1410.79 m = 4628.53 ft Mean mixing ratio: 17.59 g/kg Conv temperature: 33.95 C = 93.11 F Cap Strength: 1.85 C Lifted Index: -2.92 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.95 C Lifted Index @700 mb: -0.09 C Showalter Index: 0.15 C Risk: Thunderstorms probable Total Totals Index: 43.20 C Risk: None Vertical Totals Index: 23.50 C Cross Totals Index: 19.70 C K Index: 31.30 Risk: 60-80 % chance of thunderstorms Sweat Index: 258.60 Risk: None Energy Index: -2.02 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1180.85 J/kg Max Up Vert Vel: 48.60 m/s Conv Inhibition (B-): 32.00 J/kg Cap Strength: 1.85 C Lift Cond Lev (LCL): 896.36 mb = 1028.16 m = 3373.18 ft Lev Free Conv (LFC): 831.36 mb = 1679.83 m = 5511.18 ft Equ Level (EL): 141.36 mb = 14641.80 m = 48036.82 ft B at Equ Level: 1176.92 J/kg Wind level data Storm motion: 118 at 15 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 1007 19 130 1 -0.8 0.6 | 297 14 12.7 -6.6 1 1000 60 110 3 -2.8 1.0 | 300 12 10.6 -6.2 2 925 753 90 23 -23.0 0.0 | 53 12 -9.6 -7.2 3 850 1490 70 25 -23.5 -8.6 | 33 19 -10.1 -15.8 4 700 3139 85 21 -20.9 -1.8 | 40 12 -7.5 -9.1 5 500 5870 110 19 -17.9 6.5 | 81 4 -4.4 -0.7 6 400 7600 110 21 -19.7 7.2 | 90 6 -6.3 -0.0 7 300 9720 125 13 -10.6 7.5 | 265 3 2.8 0.2 8 250 11000 70 11 -10.3 -3.8 | 344 11 3.1 -11.0 9 200 12490 345 5 1.3 -4.8 | 309 19 14.7 -12.1 10 150 14290 285 3 2.9 -0.8 | 296 18 16.3 -8.0 11 100 16640 125 15 -12.3 8.6 | 219 2 1.1 1.4 Wind Parameters Mean winds (0-6000m): 88.3 at 20.3 knts Storm direction: 118.3 at 15.2 knts Shear (0-3000m) pos: 1.1 neg: 4.2 tot: 5.3 10-3/s Storm rel Dir Shear (0-3000m): 101.8 deg Storm rel helicity (0-3000m) pos: 32.5 neg: -20.6 tot: 12.0 m^2/s^2 ave: 4.0 10^-3 m/s^2 rel: 0.27 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 1.8 10^-3/s Energy-Hel index: 0.21 Bulk Rich Number: 63.08 Bulk Shear: 18.72 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 99 9 320 8| 0.0 15.9 15.9| 18.1 0.0 18.1 36.2 0.65| 16.1 10.4 1000 90 15 12 7| 0.0 11.9 11.9| 25.0 -5.5 19.6 19.6 0.47| 13.2 6.1 1500 84 18 27 10| 0.0 8.4 8.4| 25.0 -20.6 4.5 3.0 0.27| 10.7 2.9 2000 80 20 29 12| 0.6 6.3 6.9| 28.5 -20.6 8.0 4.0 0.28| 8.6 2.4 2500 79 20 31 13| 0.9 5.0 5.9| 31.0 -20.6 10.4 4.2 0.28| 7.3 2.0 3000 80 21 32 13| 1.1 4.2 5.3| 32.5 -20.6 12.0 4.0 0.27| 6.5 1.8 4000 82 21 35 12| 1.3 3.1 4.4| 37.2 -20.6 16.6 4.2 0.29| 5.3 1.5 5000 85 21 38 11| 1.4 2.5 3.9| 41.0 -20.6 20.4 4.1 0.31| 4.6 1.4 6000 88 20 41 10| 1.4 2.1 3.5| 43.6 -20.6 23.1 3.8 0.33| 4.1 1.3 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251016.12.gif