UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100712.upa.cvt Date: 1200Z 7 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 7 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 1010 19 27.6 23.4 78 4.2 24.5 235 3 299.9 303.2 297.3 353.3 18.23 1 1000 91 27.2 22.8 77 4.4 24.0 230 9 300.4 303.6 297.1 352.4 17.74 2 938 658 25.0 20.0 74 5.0 21.4 242 11 303.7 306.6 296.8 350.9 15.88 3 925 781 24.0 20.2 79 3.8 21.3 245 11 303.8 306.9 297.1 352.4 16.32 4 908 944 22.6 19.7 84 2.9 20.5 250 9 304.0 307.0 297.1 352.0 16.11 5 850 1517 19.2 14.2 73 5.0 15.8 270 3 306.3 308.5 294.9 342.5 12.07 6 825 1774 17.4 10.4 63 7.0 13.0 289 3 307.0 308.8 293.3 336.1 9.64 7 792 2122 14.6 14.1 97 0.5 14.3 316 4 307.6 310.0 295.8 346.5 12.88 8 713 3006 10.4 7.0 79 3.4 8.3 23 5 312.4 314.0 294.3 339.7 8.85 9 700 3160 10.0 5.7 75 4.3 7.4 35 5 313.6 315.1 294.1 339.2 8.24 10 664 3598 8.0 1.0 61 7.0 4.1 36 7 316.1 317.3 293.3 335.7 6.21 11 620 4162 4.6 1.1 78 3.5 2.7 37 9 318.4 319.7 294.3 339.8 6.70 12 567 4888 1.8 -8.2 47 10.0 -2.9 38 11 323.4 324.1 293.2 335.5 3.63 13 500 5890 -5.7 -11.7 63 6.0 -8.2 40 15 326.1 326.7 293.4 336.6 3.12 14 490 6048 -6.9 -11.8 68 4.9 -8.9 42 15 326.5 327.1 293.6 337.2 3.16 15 445 6796 -10.1 -14.1 72 4.0 -11.7 50 15 331.6 332.2 294.7 341.6 2.89 16 400 7610 -16.1 -17.6 88 1.5 -16.6 60 15 334.1 334.6 294.9 342.5 2.40 17 398 7648 -16.3 -17.6 90 1.3 -16.7 60 15 334.3 334.8 295.0 342.8 2.41 18 376 8071 -19.3 -24.3 65 5.0 -20.7 59 18 335.8 336.1 294.6 340.9 1.42 19 369 8210 -19.7 -21.5 86 1.8 -20.3 59 19 337.1 337.5 295.2 343.8 1.86 20 354 8516 -21.9 -22.6 94 0.7 -22.1 58 21 338.1 338.5 295.4 344.5 1.76 21 300 9710 -30.3 -32.0 85 1.7 -30.6 55 29 342.7 342.9 295.7 346.0 0.87 22 259 10738 -37.9 -41.0 73 3.1 -38.2 75 34 346.2 346.3 296.1 347.8 0.41 23 250 10980 -39.9 -43.3 70 3.4 -40.2 80 35 346.7 346.8 296.2 348.1 0.33 24 217 11929 -48.5 -51.7 69 3.2 -48.7 90 38 347.8 347.8 296.3 348.4 0.15 25 200 12460 -53.3 -60.3 42 7.0 -53.5 95 40 348.4 348.4 296.3 348.6 0.06 26 165 13672 -64.3 -68.6 55 4.3 -64.4 95 47 349.7 349.7 296.5 349.7 0.02 27 150 14250 -68.9 -73.4 52 4.5 -68.9 95 50 351.4 351.4 297.0 351.5 0.01 28 136 14830 -73.5 -78.2 49 4.7 -73.5 108 67 353.2 353.2 297.3 353.3 0.01 29 134 14917 -73.8 -78.6 48 4.8 -73.9 110 69 354.2 354.2 297.5 354.2 0.01 30 102 16488 -79.9 -85.9 36 6.0 -79.9 90 42 371.2 371.2 300.8 371.3 0.00 31 100 16600 -79.9 -85.9 36 6.0 -79.9 95 42 373.4 373.4 301.1 373.4 0.00 TRP 102 16488 -79.9 -85.9 36 6.0 -79.9 90 42 371.2 371.2 300.8 371.3 0.00 WND 134 14917 -73.8 -78.6 48 4.8 -73.9 110 69 354.2 354.2 297.5 354.2 0.01 Sounding variables and indices 1000-500 mb thick: 5799.00 m Freezing level: 550.92 mb = 5128.22 m = 16824.67 ft Wetbulb zero: 594.44 mb = 4503.71 m = 14775.78 ft Precipitable water: 2.23 inches Sfc-500 mean rel hum: 71.39 % Est. max temperature: 33.59 C = 92.46 F Sfc-Lift cond lev (LCL): 950.56 mb = 540.17 m = 1772.20 ft T: 25.46 C 700-500 lapse rate: 5.75 C/km ThetaE index: 16.25 C Layer 908.0- 792.0 mb Conv cond level (CCL): 851.36 mb = 1503.12 m = 4931.43 ft Mean mixing ratio: 16.74 g/kg Conv temperature: 33.93 C = 93.07 F Cap Strength: 1.92 C Lifted Index: -3.43 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.96 C Lifted Index @700 mb: -1.09 C Showalter Index: 0.08 C Risk: Thunderstorms probable Total Totals Index: 44.80 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.90 C Cross Totals Index: 19.90 C K Index: 34.80 Risk: 60-80 % chance of thunderstorms Sweat Index: 191.40 Risk: None Energy Index: -1.14 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1074.57 J/kg Max Up Vert Vel: 46.36 m/s Conv Inhibition (B-): 48.25 J/kg Cap Strength: 1.92 C Lift Cond Lev (LCL): 899.64 mb = 1023.93 m = 3359.30 ft Lev Free Conv (LFC): 814.64 mb = 1881.39 m = 6172.47 ft Equ Level (EL): 144.64 mb = 14465.73 m = 47459.17 ft B at Equ Level: 1071.83 J/kg Wind level data Storm motion: 51 at 6 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 1010 19 235 3 2.5 1.7 | 232 9 7.2 5.5 1 1000 91 230 9 6.9 5.8 | 230 15 11.6 9.6 2 925 781 245 11 10.0 4.6 | 240 17 14.7 8.4 3 850 1517 270 3 3.0 -0.0 | 244 9 7.7 3.8 4 700 3160 35 5 -2.9 -4.1 | 279 2 1.8 -0.3 5 500 5890 40 15 -9.6 -11.5 | 33 9 -4.9 -7.7 6 400 7610 60 15 -13.0 -7.5 | 66 9 -8.3 -3.7 7 300 9710 55 29 -23.8 -16.6 | 56 23 -19.0 -12.8 8 250 10980 80 35 -34.5 -6.1 | 86 30 -29.8 -2.3 9 200 12460 95 40 -39.8 3.5 | 102 36 -35.1 7.3 10 150 14250 95 50 -49.8 4.4 | 100 46 -45.1 8.2 11 134 14917 110 69 -64.8 23.6 | 114 66 -60.1 27.4 12 102 16488 90 42 -42.0 0.0 | 96 37 -37.3 3.8 13 100 16600 95 42 -41.8 3.7 | 101 38 -37.1 7.5 Wind Parameters Mean winds (0-6000m): 21.2 at 8.1 knts Storm direction: 51.2 at 6.1 knts Shear (0-3000m) pos: 1.3 neg: 0.0 tot: 1.3 10-3/s Storm rel Dir Shear (0-3000m): 50.0 deg Storm rel helicity (0-3000m) pos: 25.6 neg: -1.9 tot: 23.7 m^2/s^2 ave: 7.9 10^-3 m/s^2 rel: 0.31 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 1.4 10^-3/s Energy-Hel index: 0.14 Bulk Rich Number: 30.37 Bulk Shear: 35.38 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 ------------------------------------------------------------------------------- 500 235 9 233 15| 7.5 0.0 7.5| 6.2 -1.0 5.2 10.4 0.15| 8.2 1.2 1000 240 10 237 16| 2.9 0.0 2.9| 15.4 -1.0 14.4 14.4 0.28| 6.1 1.7 1500 243 8 238 14| 0.6 0.0 0.6| 16.9 -1.9 15.1 10.0 0.19| 6.0 1.2 2000 248 7 240 13| 1.0 0.0 1.0| 21.4 -1.9 19.6 9.8 0.28| 5.1 1.4 2500 255 6 243 12| 1.2 0.0 1.2| 24.6 -1.9 22.8 9.1 0.32| 4.6 1.5 3000 259 6 245 12| 1.3 0.0 1.3| 25.6 -1.9 23.7 7.9 0.31| 4.4 1.4 4000 286 6 259 11| 1.4 0.0 1.4| 26.9 -1.9 25.1 6.3 0.36| 3.8 1.4 5000 352 7 298 6| 1.5 0.0 1.5| 28.7 -1.9 26.8 5.4 0.37| 3.4 1.3 6000 21 8 334 4| 1.5 0.0 1.5| 31.4 -1.9 29.5 4.9 0.37| 3.2 1.2 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251007.12.gif