UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101812.upa.cvt Date: 1200Z 18 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 18 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 27.0 25.8 93 1.2 26.1 0 0 299.5 303.3 299.0 361.6 21.18 1 1005 38 27.4 25.7 90 1.7 26.2 60 0 300.1 304.0 299.1 362.2 21.11 2 1000 69 27.0 25.2 90 1.8 25.7 160 1 300.1 303.9 298.8 360.6 20.58 3 925 757 23.2 19.5 80 3.7 20.6 95 19 303.0 305.9 296.5 349.3 15.61 4 867 1321 19.0 18.8 99 0.2 18.9 91 19 304.3 307.3 297.0 351.8 15.95 5 850 1492 18.2 17.4 95 0.8 17.7 90 19 305.2 308.0 296.5 349.7 14.87 6 745 2615 13.4 7.4 67 6.0 9.7 117 14 311.7 313.4 294.0 338.6 8.71 7 700 3138 10.4 5.4 71 5.0 7.4 130 11 314.0 315.5 294.1 339.2 8.06 8 653 3713 6.0 3.6 85 2.4 4.6 130 10 315.3 316.8 294.1 339.2 7.61 9 525 5472 -3.5 -4.5 93 1.0 -4.0 130 8 324.2 325.2 294.7 341.4 5.23 10 521 5533 -2.1 -8.1 63 6.0 -4.9 130 7 326.6 327.4 294.3 340.0 3.99 11 500 5860 -3.5 -8.4 69 4.9 -5.8 130 7 328.8 329.6 294.9 342.5 4.06 12 464 6447 -7.9 -10.4 82 2.5 -9.0 100 5 330.4 331.1 295.1 343.1 3.74 13 432 7001 -10.1 -30.1 18 20.0 -15.3 71 3 334.4 334.6 293.6 337.1 0.73 14 404 7514 -13.9 -22.9 47 9.0 -16.6 44 1 336.0 336.3 294.7 341.4 1.50 15 400 7590 -14.5 -26.5 35 12.0 -17.7 40 1 336.1 336.4 294.4 340.2 1.10 16 397 7647 -14.7 -27.7 32 13.0 -18.1 38 1 336.6 336.8 294.4 340.3 0.99 17 391 7762 -15.3 -22.3 55 7.0 -17.4 35 1 337.3 337.6 295.1 343.2 1.64 18 378 8016 -16.5 -27.5 38 11.0 -19.4 28 2 339.0 339.2 295.0 342.9 1.06 19 373 8115 -16.7 -26.7 42 10.0 -19.4 25 2 340.0 340.3 295.3 344.3 1.15 20 344 8716 -20.9 -26.9 59 6.0 -22.4 9 4 342.3 342.5 295.9 346.9 1.23 21 342 8759 -21.1 -31.1 40 10.0 -23.4 7 4 342.6 342.7 295.7 345.7 0.83 22 338 8846 -21.9 -27.9 58 6.0 -23.4 5 5 342.6 342.9 296.0 346.9 1.14 23 321 9222 -24.5 -36.5 32 12.0 -26.6 354 6 344.1 344.2 295.8 346.2 0.52 24 316 9336 -25.5 -30.5 63 5.0 -26.6 351 6 344.3 344.5 296.2 347.9 0.96 25 309 9498 -26.7 -40.7 25 14.0 -28.7 346 6 344.8 344.9 295.8 346.2 0.35 26 308 9521 -26.9 -35.9 42 9.0 -28.5 345 6 344.9 345.0 296.0 347.1 0.58 27 307 9545 -27.1 -49.1 11 22.0 -29.6 345 7 344.9 344.9 295.6 345.5 0.14 28 305 9592 -27.3 -39.3 31 12.0 -29.2 343 7 345.3 345.4 296.0 346.9 0.41 29 300 9710 -28.5 -41.5 28 13.0 -30.3 340 7 345.2 345.3 295.8 346.6 0.34 30 298 9758 -28.7 -38.7 38 10.0 -30.2 340 7 345.6 345.7 296.0 347.4 0.45 31 294 9855 -29.7 -42.7 27 13.0 -31.4 340 8 345.5 345.6 295.9 346.7 0.30 32 290 9952 -30.5 -40.5 37 10.0 -31.9 340 8 345.7 345.8 296.0 347.3 0.38 33 288 10001 -30.9 -32.4 87 1.5 -31.2 340 8 345.8 346.0 296.4 349.2 0.87 34 285 10076 -31.5 -43.5 30 12.0 -32.9 340 9 346.0 346.1 296.0 347.2 0.29 35 279 10226 -33.1 -38.1 61 5.0 -33.8 340 9 345.8 345.9 296.1 347.8 0.51 36 278 10251 -33.3 -40.3 49 7.0 -34.2 340 10 345.9 346.0 296.1 347.5 0.41 37 277 10276 -33.3 -35.9 77 2.6 -33.7 340 10 346.3 346.4 296.4 348.8 0.64 38 257 10799 -36.9 -42.9 54 6.0 -37.5 340 12 348.4 348.5 296.6 349.8 0.34 39 256 10826 -37.1 -40.4 71 3.3 -37.5 340 12 348.5 348.6 296.7 350.3 0.44 40 255 10853 -37.5 -42.5 60 5.0 -38.0 340 12 348.3 348.4 296.6 349.8 0.35 41 253 10908 -37.7 -79.7 0 42.0 -39.1 340 13 348.8 348.8 296.4 348.8 0.00 42 250 10990 -38.3 -60.3 8 22.0 -39.5 340 13 349.1 349.1 296.5 349.3 0.05 43 242 11214 -39.9 -58.9 11 19.0 -40.9 340 14 350.0 350.0 296.7 350.2 0.06 44 200 12490 -51.3 -60.3 33 9.0 -51.6 340 21 351.5 351.5 297.0 351.8 0.06 45 166 13671 -61.7 -64.0 74 2.3 -61.7 327 20 353.4 353.4 297.4 353.6 0.04 46 150 14290 -67.5 -71.4 57 3.9 -67.5 320 19 353.8 353.8 297.5 353.9 0.02 47 146 14452 -69.1 -73.3 54 4.2 -69.1 309 19 353.8 353.8 297.4 353.8 0.01 48 112 15987 -81.7 -86.3 45 4.6 -81.7 205 15 358.1 358.1 298.3 358.1 0.00 49 100 16620 -82.9 -87.4 46 4.5 -82.9 160 13 367.6 367.6 300.1 367.6 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5791.00 m Freezing level: 572.16 mb = 4824.23 m = 15827.35 ft Wetbulb zero: 584.79 mb = 4602.70 m = 15100.55 ft Precipitable water: 2.36 inches Sfc-500 mean rel hum: 82.85 % Est. max temperature: 32.34 C = 90.20 F Sfc-Lift cond lev (LCL): 991.12 mb = 147.73 m = 484.67 ft T: 26.57 C 700-500 lapse rate: 5.11 C/km ThetaE index: 13.25 C Layer 850.0- 700.0 mb Conv cond level (CCL): 896.34 mb = 1031.15 m = 3383.00 ft Mean mixing ratio: 17.88 g/kg Conv temperature: 31.21 C = 88.18 F Cap Strength: 1.32 C Lifted Index: -2.11 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.56 C Lifted Index @700 mb: -1.40 C Showalter Index: -0.41 C Risk: Thunderstorms probable Total Totals Index: 42.60 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 20.90 C K Index: 34.10 Risk: 60-80 % chance of thunderstorms Sweat Index: 253.80 Risk: None Energy Index: -1.50 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1047.55 J/kg Max Up Vert Vel: 45.77 m/s Conv Inhibition (B-): 9.67 J/kg Cap Strength: 1.32 C Lift Cond Lev (LCL): 921.59 mb = 789.16 m = 2589.09 ft Lev Free Conv (LFC): 876.59 mb = 1225.21 m = 4019.68 ft Equ Level (EL): 136.59 mb = 14837.72 m = 48679.60 ft B at Equ Level: 1042.36 J/kg Wind level data Storm motion: 141 at 9 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 0 0 -0.0 -0.0 | 321 9 5.5 -6.9 1 1000 69 160 1 -0.3 0.9 | 319 8 5.2 -5.9 2 925 757 95 19 -18.9 1.7 | 69 14 -13.4 -5.2 3 850 1492 90 19 -19.0 0.0 | 63 15 -13.5 -6.9 4 700 3138 130 11 -8.4 7.1 | 94 3 -2.9 0.2 5 500 5860 130 7 -5.4 4.5 | 356 2 0.2 -2.4 6 400 7590 40 1 -0.6 -0.8 | 327 9 4.9 -7.6 7 300 9710 340 7 2.4 -6.6 | 329 16 7.9 -13.4 8 250 10990 340 13 4.4 -12.2 | 332 22 10.0 -19.1 9 200 12490 340 21 7.2 -19.7 | 334 29 12.7 -26.6 10 150 14290 320 19 12.2 -14.6 | 320 28 17.7 -21.4 11 100 16620 160 13 -4.4 12.2 | 191 5 1.1 5.4 Wind Parameters Mean winds (0-6000m): 111.2 at 11.7 knts Storm direction: 141.2 at 8.8 knts Shear (0-3000m) pos: 2.2 neg: 1.6 tot: 3.8 10-3/s Storm rel Dir Shear (0-3000m): 130.7 deg Storm rel helicity (0-3000m) pos: 14.7 neg: -12.9 tot: 1.8 m^2/s^2 ave: 0.6 10^-3 m/s^2 rel: 0.15 Storm rel vorticity (0-3000m) horiz: 6.4 stream: 0.9 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 226.99 Bulk Shear: 4.61 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 ------------------------------------------------------------------------------- 500 121 6 355 4| 13.1 0.0 13.1| 2.3 -1.4 0.9 1.8 0.30| 14.9 4.5 1000 96 12 47 8| 6.6 4.6 11.2| 2.3 -9.7 -7.3 -7.3 0.07| 12.3 0.9 1500 94 14 56 10| 4.4 3.2 7.6| 2.3 -12.9 -10.6 -7.0 0.03| 8.5 0.3 2000 95 15 59 11| 3.2 2.4 5.7| 9.7 -12.9 -3.2 -1.6 0.10| 7.6 0.8 2500 97 15 62 11| 2.6 1.9 4.6| 13.3 -12.9 0.4 0.2 0.13| 6.9 0.9 3000 99 15 63 10| 2.2 1.6 3.8| 14.7 -12.9 1.8 0.6 0.15| 6.4 0.9 4000 105 14 66 8| 1.6 1.2 2.8| 14.8 -13.5 1.3 0.3 0.12| 5.0 0.6 5000 108 13 66 7| 1.3 0.9 2.2| 14.8 -14.1 0.6 0.1 0.08| 4.2 0.3 6000 111 12 64 6| 1.1 0.9 1.9| 14.8 -14.7 0.2 0.0 0.05| 3.7 0.2 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251018.12.gif