UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for VT453... Searching the city database file for: VT453 ... Date:0000Z 18 OCT 25 Station: VT453 WMO ident: 48453 Latitude: 13.67 Longitude: 100.61 ------------------------------------------------------------------------------- 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 20 25.6 23.1 86 2.5 23.8 10 4 298.2 301.4 296.7 350.3 17.95 1 1005 37 28.2 24.0 78 4.2 25.1 14 4 300.9 304.4 298.1 356.9 19.02 2 1000 81 27.8 23.6 78 4.2 24.7 25 5 301.0 304.4 297.8 355.8 18.65 3 925 771 23.8 20.6 82 3.2 21.5 50 12 303.6 306.7 297.4 353.4 16.74 4 850 1507 18.8 17.0 89 1.8 17.5 70 15 305.8 308.5 296.5 349.3 14.49 5 719 2928 9.8 9.8 100 0.0 9.8 66 16 310.9 313.0 295.2 343.6 10.65 6 700 3152 9.4 7.7 89 1.7 8.3 70 19 312.9 314.7 294.8 342.2 9.47 7 650 3765 6.8 2.9 76 3.9 4.5 81 20 316.7 318.1 294.2 339.6 7.28 8 646 3816 7.0 0.0 61 7.0 3.2 81 20 317.4 318.6 293.4 336.4 5.93 9 588 4585 2.6 -1.0 77 3.6 0.7 85 18 321.0 322.2 294.4 340.5 6.06 10 516 5631 -3.7 -8.0 72 4.3 -5.7 98 18 325.6 326.4 294.1 339.1 4.06 11 500 5880 -4.9 -12.9 53 8.0 -8.2 95 17 327.1 327.6 293.5 336.7 2.83 12 495 5959 -5.5 -15.5 45 10.0 -9.3 95 17 327.3 327.7 293.1 335.2 2.31 13 472 6330 -8.3 -9.1 94 0.8 -8.7 90 15 328.3 329.1 294.8 342.0 4.07 14 445 6785 -10.9 -13.4 82 2.5 -11.9 81 13 330.6 331.2 294.6 341.1 3.06 15 442 6837 -10.7 -17.7 56 7.0 -13.2 80 13 331.5 331.9 294.1 339.0 2.15 16 434 6978 -10.9 -22.9 37 12.0 -14.6 78 13 333.0 333.2 293.8 338.0 1.40 17 410 7413 -13.9 -24.9 39 11.0 -17.0 69 11 334.6 334.8 294.1 339.0 1.24 18 406 7487 -14.3 -20.3 60 6.0 -16.3 67 10 335.0 335.4 294.7 341.7 1.88 19 400 7600 -14.3 -23.3 46 9.0 -17.0 65 10 336.4 336.7 294.7 341.7 1.46 20 381 7967 -16.3 -29.3 32 13.0 -19.5 76 10 338.5 338.7 294.7 341.8 0.89 21 359 8411 -19.9 -28.9 45 9.0 -22.1 90 9 339.5 339.7 295.1 343.1 0.98 22 300 9720 -28.1 -48.1 13 20.0 -30.3 135 9 345.8 345.8 295.8 346.5 0.16 23 295 9840 -28.9 -48.9 13 20.0 -31.0 346.3 346.3 296.0 346.9 0.15 24 294 9865 -29.1 -49.1 13 20.0 -31.2 346.4 346.4 296.0 347.0 0.15 TRP WND Sounding variables and indices 1000-500 mb thick: 5799.00 m Freezing level: 558.29 mb = 5016.52 m = 16458.18 ft Wetbulb zero: 580.48 mb = 4687.78 m = 15379.68 ft Precipitable water: 2.37 inches Sfc-500 mean rel hum: 81.68 % Est. max temperature: 33.09 C = 91.56 F Sfc-Lift cond lev (LCL): 971.43 mb = 337.57 m = 1107.49 ft T: 26.31 C 700-500 lapse rate: 5.24 C/km ThetaE index: 20.53 C Layer 1000.0- 588.0 mb Conv cond level (CCL): 873.73 mb = 1267.33 m = 4157.85 ft Mean mixing ratio: 17.53 g/kg Conv temperature: 32.59 C = 90.67 F Cap Strength: 1.61 C Lifted Index: -3.45 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.05 C Lifted Index @700 mb: -2.37 C Showalter Index: -1.70 C Risk: Thunderstorms probable Total Totals Index: 45.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 21.90 C K Index: 39.00 Risk: > 80 % chance of thunderstorms Sweat Index: 251.00 Risk: None Energy Index: -2.48 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 849.87 J/kg Max Up Vert Vel: 41.23 m/s Conv Inhibition (B-): 22.87 J/kg Cap Strength: 1.61 C Lift Cond Lev (LCL): 907.86 mb = 933.84 m = 3063.75 ft Lev Free Conv (LFC): 842.86 mb = 1578.68 m = 5179.35 ft Wind level data Storm motion: 106 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 1007 20 10 4 -0.7 -3.9 | 304 13 10.6 -7.2 1 1000 81 25 5 -2.1 -4.5 | 310 12 9.2 -7.8 2 975 305 45 8 -5.7 -5.7 | 328 11 5.6 -8.9 3 942 610 55 12 -9.8 -6.9 | 352 10 1.4 -10.2 4 925 771 50 12 -9.2 -7.7 | 349 11 2.1 -11.0 5 910 914 50 13 -10.0 -8.4 | 354 12 1.3 -11.6 6 850 1507 70 15 -14.1 -5.1 | 19 9 -2.8 -8.4 7 848 1524 70 15 -14.1 -5.1 | 19 9 -2.8 -8.4 8 789 2134 75 12 -11.6 -3.1 | 3 6 -0.3 -6.4 9 709 3048 65 17 -15.4 -7.2 | 22 11 -4.1 -10.5 10 700 3152 70 19 -17.9 -6.5 | 34 12 -6.6 -9.8 11 658 3658 80 20 -19.7 -3.5 | 51 11 -8.4 -6.8 12 588 4572 85 18 -17.9 -1.6 | 54 8 -6.7 -4.9 13 566 4877 80 18 -17.7 -3.1 | 45 9 -6.5 -6.4 14 525 5486 100 18 -17.7 3.1 | 89 6 -6.5 -0.2 15 500 5880 95 17 -16.9 1.5 | 72 6 -5.7 -1.8 16 486 6096 95 16 -15.9 1.4 | 68 5 -4.7 -1.9 17 400 7600 65 10 -9.1 -4.2 | 344 8 2.2 -7.5 18 399 7620 65 11 -10.0 -4.6 | 351 8 1.3 -7.9 19 324 9144 115 8 -7.3 3.4 | 269 4 4.0 0.1 20 300 9720 135 9 -6.4 6.4 | 238 6 4.9 3.1 Wind Parameters Mean winds (0-6000m): 76.2 at 15.7 knts Storm direction: 106.2 at 11.7 knts Shear (0-3000m) pos: 2.0 neg: 0.8 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 77.0 deg Storm rel helicity (0-3000m) pos: 46.3 neg: -4.7 tot: 41.6 m^2/s^2 ave: 13.9 10^-3 m/s^2 rel: 0.58 Storm rel vorticity (0-3000m) horiz: 4.3 stream: 2.5 10^-3/s Energy-Hel index: 0.22 Bulk Rich Number: 60.28 Bulk Shear: 14.10 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 42 7 325 11| 8.5 0.0 8.5| 23.1 0.0 23.1 46.3 0.94| 8.6 8.1 1000 48 10 339 11| 5.6 0.0 5.6| 31.0 -0.8 30.2 30.2 0.84| 6.3 5.3 1500 54 11 348 10| 4.6 0.0 4.6| 40.8 -0.8 40.0 26.7 0.84| 5.7 4.8 2000 60 12 354 9| 2.9 0.0 2.9| 40.8 -4.0 36.8 18.4 0.64| 5.0 3.2 2500 62 12 357 9| 2.3 0.4 2.7| 43.5 -4.7 38.8 15.5 0.61| 4.5 2.8 3000 64 13 1 9| 2.0 0.8 2.8| 46.3 -4.7 41.6 13.9 0.58| 4.3 2.5 4000 68 14 14 9| 2.0 0.6 2.7| 64.5 -4.7 59.8 14.9 0.64| 4.1 2.7 5000 72 15 22 9| 1.6 0.5 2.1| 67.3 -7.1 60.2 12.0 0.58| 3.7 2.1 6000 76 16 29 8| 1.5 0.5 2.0| 75.5 -10.1 65.3 10.9 0.54| 3.7 2.0 Wrote GIF file: /home/apache/climate/data/raob//VT453/skewt/VT453.skewt.20251018.00.gif