UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121012.upa.cvt Date: 1200Z 10 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 10 DEC 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 1011 19 25.0 24.4 96 0.6 24.6 0 0 297.2 300.7 297.4 353.4 19.37 1 1000 95 24.4 23.7 96 0.7 23.9 340 3 297.5 300.9 297.1 352.0 18.76 2 925 779 22.0 20.9 93 1.1 21.2 80 11 301.8 304.9 297.1 352.1 17.06 3 850 1511 17.8 17.8 100 0.0 17.8 115 15 304.8 307.6 296.7 350.3 15.26 4 700 3159 10.8 10.8 100 0.0 10.8 90 17 314.4 316.7 296.8 350.8 11.71 5 658 3674 8.4 8.4 100 0.0 8.4 96 17 317.4 319.4 296.8 350.6 10.58 6 623 4124 4.8 0.9 76 3.9 2.6 102 16 318.2 319.5 294.1 339.2 6.57 7 614 4243 3.4 2.5 94 0.9 2.9 104 16 317.9 319.4 294.7 341.7 7.49 8 611 4283 3.6 -0.6 74 4.2 1.3 104 16 318.6 319.8 293.8 337.8 6.00 9 598 4458 2.4 1.1 91 1.3 1.7 106 16 319.2 320.6 294.7 341.4 6.95 10 521 5564 -3.1 -4.1 93 1.0 -3.6 121 15 325.4 326.5 295.1 343.3 5.43 11 500 5890 -4.3 -5.1 94 0.8 -4.7 125 15 327.8 328.8 295.6 345.2 5.24 12 474 6310 -6.7 -7.2 96 0.5 -7.0 123 14 329.9 330.8 295.7 345.7 4.71 13 416 7320 -12.7 -17.5 67 4.8 -14.4 117 10 334.7 335.2 295.0 342.9 2.33 14 410 7431 -12.1 -17.1 66 5.0 -13.9 116 10 336.9 337.4 295.6 345.5 2.44 15 400 7620 -13.7 -17.4 74 3.7 -15.0 115 9 337.2 337.7 295.7 345.8 2.44 16 382 7968 -16.9 -18.1 90 1.2 -17.3 88 10 337.4 337.9 295.7 346.0 2.41 17 365 8309 -18.9 -21.5 80 2.6 -19.7 61 10 339.2 339.6 295.7 346.0 1.88 18 362 8371 -18.9 -26.9 49 8.0 -21.0 56 10 340.0 340.2 295.4 344.3 1.17 19 355 8516 -19.9 -32.9 30 13.0 -22.7 44 11 340.6 340.7 295.1 343.1 0.68 20 348 8663 -21.3 -28.3 53 7.0 -23.0 33 11 340.6 340.8 295.4 344.6 1.07 21 342 8792 -21.9 -34.9 30 13.0 -24.4 22 11 341.5 341.6 295.2 343.7 0.58 22 324 9187 -25.7 -32.7 52 7.0 -27.1 350 12 341.6 341.7 295.4 344.4 0.75 23 300 9740 -30.5 -35.2 63 4.7 -31.3 305 13 342.4 342.5 295.5 344.8 0.64 24 299 9764 -30.7 -34.5 69 3.8 -31.3 308 13 342.4 342.6 295.5 345.1 0.69 25 270 10480 -35.3 -38.9 70 3.6 -35.8 29 13 345.9 346.0 296.1 347.8 0.49 26 265 10610 -36.5 -39.9 71 3.4 -36.9 44 13 346.0 346.1 296.1 347.8 0.45 27 250 11010 -39.9 -44.3 63 4.4 -40.3 90 13 346.7 346.8 296.2 348.0 0.30 28 200 12490 -53.3 -57.0 64 3.7 -53.4 130 11 348.4 348.4 296.4 348.7 0.09 29 173 13403 -61.9 -66.4 55 4.5 -62.0 130 26 348.9 348.9 296.4 349.0 0.03 30 150 14270 -68.1 -71.6 61 3.5 -68.1 130 40 352.8 352.8 297.3 352.8 0.02 31 142 14596 -70.3 -73.6 62 3.3 -70.3 125 37 354.5 354.5 297.6 354.6 0.01 32 112 15965 -81.3 -89.3 25 8.0 -81.3 105 22 358.8 358.8 298.5 358.8 0.00 33 104 16385 -76.5 -88.5 13 12.0 -76.5 98 17 375.7 375.7 301.5 375.7 0.00 34 100 16610 -77.7 -89.7 13 12.0 -77.7 95 15 377.6 377.6 301.9 377.6 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5795.00 m Freezing level: 564.40 mb = 4940.39 m = 16208.44 ft Wetbulb zero: 573.76 mb = 4789.81 m = 15714.41 ft Precipitable water: 2.70 inches Sfc-500 mean rel hum: 95.10 % Est. max temperature: 32.14 C = 89.86 F Sfc-Lift cond lev (LCL): 1002.69 mb = 76.37 m = 250.54 ft T: 24.55 C 700-500 lapse rate: 5.53 C/km ThetaE index: 1.80 C Layer 850.0- 700.0 mb Conv cond level (CCL): 915.92 mb = 864.42 m = 2835.98 ft Mean mixing ratio: 17.88 g/kg Conv temperature: 29.96 C = 85.92 F Cap Strength: 0.77 C Lifted Index: -2.15 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.33 C Lifted Index @700 mb: -0.41 C Showalter Index: -1.45 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 22.10 C Cross Totals Index: 22.10 C K Index: 39.90 Risk: > 80 % chance of thunderstorms Sweat Index: 258.60 Risk: None Energy Index: -1.10 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 937.93 J/kg Max Up Vert Vel: 43.31 m/s Conv Inhibition (B-): 10.59 J/kg Cap Strength: 0.76 C Lift Cond Lev (LCL): 948.20 mb = 561.62 m = 1842.57 ft Lev Free Conv (LFC): 873.20 mb = 1277.84 m = 4192.34 ft Equ Level (EL): 153.20 mb = 14141.47 m = 46395.35 ft B at Equ Level: 936.22 J/kg Wind level data Storm motion: 133 at 11 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 1011 19 0 0 -0.0 -0.0 | 313 11 7.9 -7.4 1 1000 95 340 3 1.0 -2.8 | 319 14 8.9 -10.2 2 925 779 80 11 -10.8 -1.9 | 17 10 -2.9 -9.3 3 850 1511 115 15 -13.6 6.3 | 80 6 -5.7 -1.0 4 700 3159 90 17 -17.0 0.0 | 51 12 -9.1 -7.4 5 500 5890 125 15 -12.3 8.6 | 106 5 -4.4 1.2 6 400 7620 115 9 -8.2 3.8 | 4 4 -0.2 -3.6 7 300 9740 305 13 10.6 -7.5 | 309 24 18.6 -14.8 8 250 11010 90 13 -13.0 0.0 | 35 9 -5.1 -7.4 9 200 12490 130 11 -8.4 7.1 | 59 1 -0.5 -0.3 10 150 14270 130 40 -30.6 25.7 | 129 29 -22.7 18.3 11 100 16610 95 15 -14.9 1.3 | 49 9 -7.0 -6.1 Wind Parameters Mean winds (0-6000m): 102.9 at 14.4 knts Storm direction: 132.9 at 10.8 knts Shear (0-3000m) pos: 2.6 neg: 1.1 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 99.9 deg Storm rel helicity (0-3000m) pos: 65.2 neg: -8.5 tot: 56.7 m^2/s^2 ave: 18.9 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 3.2 10^-3/s Energy-Hel index: 0.38 Bulk Rich Number: 34.47 Bulk Shear: 27.21 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 23 5 333 13| 8.2 0.0 8.2| 31.6 0.0 31.6 63.2 0.81| 11.0 8.9 1000 72 8 356 10| 6.3 0.0 6.3| 55.0 0.0 55.0 55.0 0.82| 10.5 8.6 1500 90 10 13 8| 5.1 0.0 5.1| 65.2 0.0 65.2 43.5 0.84| 9.1 7.7 2000 98 11 27 7| 3.9 0.5 4.4| 65.2 -2.2 63.0 31.5 0.74| 7.4 5.4 2500 99 12 36 7| 3.1 0.9 4.0| 65.2 -5.0 60.2 24.1 0.64| 6.4 4.1 3000 98 13 41 7| 2.6 1.1 3.7| 65.2 -8.5 56.7 18.9 0.56| 5.7 3.2 4000 97 14 45 8| 2.0 0.8 2.8| 70.6 -9.3 61.3 15.3 0.55| 4.7 2.6 5000 99 14 50 8| 1.7 0.7 2.4| 75.7 -9.3 66.4 13.3 0.56| 4.2 2.3 6000 103 14 56 7| 1.4 0.6 2.0| 79.0 -9.6 69.4 11.6 0.57| 3.8 2.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251210.12.gif