UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102012.upa.cvt Date: 1200Z 20 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 20 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 1005 19 28.0 24.8 83 3.2 25.6 235 1 300.7 304.4 298.6 359.6 19.98 1 1000 49 28.0 24.0 79 4.0 25.0 225 7 301.1 304.7 298.2 357.5 19.11 2 964 375 27.4 22.5 75 4.9 23.8 176 5 303.7 307.1 298.2 357.5 18.08 3 925 741 24.6 21.7 84 2.9 22.5 120 3 304.5 307.8 298.3 358.0 17.94 4 867 1308 20.4 20.4 100 0.0 20.4 70 8 305.8 309.1 298.5 358.8 17.66 5 850 1480 19.6 19.6 100 0.0 19.6 55 9 306.7 309.9 298.4 358.2 17.13 6 773 2294 14.4 13.9 97 0.5 14.1 53 11 309.5 312.0 296.4 349.2 13.03 7 711 3001 11.6 11.6 100 0.0 11.6 50 13 313.9 316.3 297.0 351.6 12.17 8 700 3132 11.4 11.4 100 0.0 11.4 50 13 315.1 317.4 297.3 353.0 12.20 9 693 3216 11.2 11.2 100 0.0 11.2 50 13 315.8 318.1 297.4 353.7 12.16 10 663 3585 7.2 6.2 93 1.0 6.6 52 12 315.3 317.0 295.1 343.5 9.01 11 622 4110 4.6 0.6 75 4.0 2.4 54 12 318.1 319.4 294.0 338.7 6.44 12 568 4849 1.0 1.0 100 0.0 1.0 56 11 322.3 323.7 295.7 345.7 7.27 13 544 5197 -1.1 -1.1 100 0.0 -1.1 57 10 323.8 325.1 295.5 345.0 6.51 14 542 5226 -1.3 -2.3 93 1.0 -1.9 58 10 323.9 325.1 295.1 343.4 5.97 15 541 5241 -0.7 -4.6 75 3.9 -2.7 58 10 324.8 325.8 294.7 341.4 5.03 16 539 5271 -0.5 -3.4 81 2.9 -2.0 58 10 325.4 326.5 295.2 343.6 5.53 17 502 5838 -4.1 -5.0 93 0.9 -4.6 60 9 327.7 328.7 295.6 345.2 5.26 18 500 5870 -4.1 -7.2 79 3.1 -5.6 60 9 328.0 328.9 295.0 343.0 4.46 19 491 6013 -4.5 -8.6 73 4.1 -6.4 60 9 329.3 330.1 295.0 343.0 4.07 20 440 6869 -9.9 -10.0 99 0.1 -9.9 57 8 332.9 333.7 295.9 346.8 4.07 21 400 7600 -13.1 -15.9 79 2.8 -14.2 55 7 338.0 338.5 296.1 347.8 2.77 22 395 7696 -13.7 -17.3 74 3.6 -15.0 58 7 338.4 338.9 296.0 347.3 2.49 23 374 8109 -16.5 -18.7 83 2.2 -17.3 71 9 340.0 340.5 296.3 348.4 2.34 24 363 8332 -17.9 -24.9 54 7.0 -19.9 79 10 341.1 341.4 295.8 346.2 1.40 25 358 8436 -18.5 -22.6 70 4.1 -19.7 82 10 341.6 342.0 296.2 348.0 1.74 26 354 8520 -18.9 -26.9 49 8.0 -21.0 85 10 342.2 342.4 295.9 346.6 1.19 27 317 9332 -25.1 -37.1 32 12.0 -27.2 112 13 344.5 344.6 295.8 346.5 0.50 28 314 9401 -25.5 -28.5 76 3.0 -26.2 114 14 344.9 345.2 296.5 349.3 1.16 29 310 9494 -26.1 -28.3 82 2.2 -26.6 117 14 345.3 345.6 296.6 349.9 1.20 30 304 9635 -27.1 -33.1 57 6.0 -28.3 122 15 345.9 346.0 296.4 348.9 0.77 31 300 9730 -27.7 -30.8 75 3.1 -28.3 125 15 346.3 346.5 296.7 350.1 0.98 32 286 10071 -30.5 -32.5 83 2.0 -30.9 124 16 347.1 347.3 296.7 350.5 0.87 33 259 10766 -35.7 -42.7 49 7.0 -36.5 121 17 349.4 349.5 296.8 350.8 0.34 34 250 11010 -37.9 -42.8 60 4.9 -38.4 120 17 349.7 349.8 296.9 351.1 0.35 35 246 11121 -39.1 -42.3 72 3.2 -39.4 120 17 349.5 349.6 296.8 351.1 0.38 36 241 11262 -40.3 -44.1 67 3.8 -40.6 121 17 349.8 349.9 296.8 351.1 0.32 37 239 11319 -40.7 -45.7 59 5.0 -41.1 121 17 350.0 350.1 296.9 351.1 0.27 38 211 12157 -47.1 -51.4 61 4.3 -47.3 124 15 352.7 352.8 297.4 353.4 0.16 39 200 12510 -50.3 -53.1 72 2.8 -50.4 125 15 353.1 353.1 297.4 353.7 0.14 40 188 12909 -53.9 -56.0 78 2.1 -54.0 117 16 353.6 353.6 297.5 354.1 0.10 41 181 13151 -56.1 -59.5 65 3.4 -56.2 113 17 353.9 353.9 297.5 354.2 0.07 42 172 13472 -59.1 -60.4 85 1.3 -59.1 107 18 354.1 354.1 297.5 354.4 0.07 43 150 14310 -67.5 -72.1 52 4.6 -67.5 90 21 353.8 353.8 297.5 353.9 0.02 44 145 14512 -69.5 -74.2 50 4.7 -69.5 92 22 353.8 353.8 297.4 353.8 0.01 45 100 16630 -86.1 -89.3 56 3.2 -86.1 115 38 361.4 361.4 299.0 361.4 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5821.00 m Freezing level: 556.57 mb = 5014.79 m = 16452.52 ft Wetbulb zero: 556.44 mb = 5014.80 m = 16452.55 ft Precipitable water: 2.73 inches Sfc-500 mean rel hum: 91.43 % Est. max temperature: 33.70 C = 92.66 F Sfc-Lift cond lev (LCL): 959.93 mb = 412.95 m = 1354.79 ft T: 27.11 C 700-500 lapse rate: 5.66 C/km ThetaE index: 9.59 C Layer 850.0- 711.0 mb Conv cond level (CCL): 876.97 mb = 1207.99 m = 3963.16 ft Mean mixing ratio: 18.26 g/kg Conv temperature: 32.83 C = 91.10 F Cap Strength: 1.42 C Lifted Index: -3.83 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.40 C Lifted Index @700 mb: -1.22 C Showalter Index: -3.89 C Risk: Severe thunderstorms possible Total Totals Index: 47.40 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.70 C Cross Totals Index: 23.70 C K Index: 43.30 Risk: > 80 % chance of thunderstorms Sweat Index: 262.20 Risk: None Energy Index: -3.05 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1563.31 J/kg Max Up Vert Vel: 55.92 m/s Conv Inhibition (B-): 25.28 J/kg Cap Strength: 1.42 C Lift Cond Lev (LCL): 903.54 mb = 946.57 m = 3105.50 ft Lev Free Conv (LFC): 848.54 mb = 1494.74 m = 4903.93 ft Equ Level (EL): 118.54 mb = 15660.60 m = 51379.30 ft B at Equ Level: 1558.72 J/kg Wind level data Storm motion: 86 at 7 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 1005 19 235 1 0.8 0.6 | 262 8 8.0 1.1 1 1000 49 225 7 4.9 4.9 | 246 13 12.2 5.4 2 925 741 120 3 -2.6 1.5 | 247 5 4.6 2.0 3 850 1480 55 9 -7.4 -5.2 | 2 5 -0.1 -4.7 4 700 3132 50 13 -10.0 -8.4 | 19 8 -2.7 -7.9 5 500 5870 60 9 -7.8 -4.5 | 8 4 -0.6 -4.0 6 400 7600 55 7 -5.7 -4.0 | 337 4 1.5 -3.5 7 300 9730 125 15 -12.3 8.6 | 151 10 -5.1 9.1 8 250 11010 120 17 -14.7 8.5 | 140 12 -7.5 9.0 9 200 12510 125 15 -12.3 8.6 | 151 10 -5.1 9.1 10 150 14310 90 21 -21.0 0.0 | 92 14 -13.8 0.5 11 100 16630 115 38 -34.4 16.1 | 121 32 -27.2 16.6 Wind Parameters Mean winds (0-6000m): 56.1 at 9.7 knts Storm direction: 86.1 at 7.2 knts Shear (0-3000m) pos: 0.0 neg: 2.4 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 116.2 deg Storm rel helicity (0-3000m) pos: 6.0 neg: -15.9 tot: -9.9 m^2/s^2 ave: -3.3 10^-3 m/s^2 rel: -0.00 Storm rel vorticity (0-3000m) horiz: 4.7 stream: -0.0 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 56.13 Bulk Shear: 27.85 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 ------------------------------------------------------------------------------- 500 201 5 239 11| 0.0 4.4 4.4| 0.2 -15.7 -15.5 -31.0 -0.49| 12.3 -6.0 1000 177 5 233 9| 0.0 3.1 3.1| 2.3 -15.9 -13.6 -13.6 -0.27| 8.8 -2.3 1500 104 6 224 3| 0.0 3.5 3.5| 3.3 -15.9 -12.6 -8.4 -0.07| 8.1 -0.6 2000 74 7 325 2| 0.0 2.9 2.9| 4.3 -15.9 -11.7 -5.8 -0.04| 6.4 -0.2 2500 64 7 349 3| 0.0 2.6 2.6| 5.2 -15.9 -10.8 -4.3 -0.02| 5.4 -0.1 3000 60 8 359 4| 0.0 2.4 2.4| 6.0 -15.9 -9.9 -3.3 -0.00| 4.7 -0.0 4000 56 9 6 5| 0.2 1.8 1.9| 6.1 -16.2 -10.0 -2.5 -0.00| 3.7 -0.0 5000 56 10 9 5| 0.3 1.4 1.7| 6.1 -16.7 -10.6 -2.1 -0.01| 3.2 -0.0 6000 56 10 9 5| 0.4 1.2 1.5| 6.1 -17.6 -11.4 -1.9 -0.03| 2.8 -0.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251020.12.gif