UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122000.upa.cvt Date: 0000Z 20 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:0000Z 20 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 1010 19 25.8 24.2 91 1.6 24.6 315 1 298.1 301.6 297.4 353.8 19.15 1 1000 86 24.8 23.6 93 1.2 23.9 325 3 298.0 301.3 297.1 352.1 18.65 2 925 769 20.6 19.9 96 0.7 20.1 280 1 300.4 303.3 296.0 347.3 16.01 3 895 1054 18.6 18.4 99 0.2 18.5 340 3 301.2 303.9 295.6 345.4 15.05 4 886 1142 20.2 16.8 81 3.4 17.9 359 3 303.7 306.2 295.4 344.4 13.71 5 850 1500 17.6 15.6 88 2.0 16.3 75 5 304.6 307.0 295.3 344.1 13.23 6 825 1755 15.6 14.9 96 0.7 15.1 70 6 305.1 307.5 295.3 344.0 13.03 7 789 2133 14.2 10.4 78 3.8 11.8 62 8 307.5 309.4 293.9 338.0 10.09 8 780 2230 13.6 10.2 80 3.4 11.4 60 9 307.9 309.8 293.9 338.4 10.07 9 774 2295 14.2 5.2 55 9.0 8.9 58 9 309.2 310.5 292.0 331.2 7.18 10 764 2405 14.0 1.0 41 13.0 6.9 56 9 310.1 311.1 290.8 326.9 5.39 11 749 2572 12.6 7.7 72 4.9 9.6 52 10 310.4 312.0 293.7 337.5 8.84 12 741 2662 12.6 3.6 54 9.0 7.4 50 11 311.3 312.6 292.3 332.1 6.70 13 732 2765 11.8 7.0 72 4.8 8.9 48 11 311.5 313.2 293.9 338.1 8.62 14 719 2915 11.4 -1.6 40 13.0 4.6 45 12 312.7 313.6 291.0 327.6 4.73 15 700 3139 10.6 -3.4 37 14.0 3.5 40 13 314.2 315.0 291.1 327.8 4.25 16 669 3514 9.0 -7.0 32 16.0 1.4 35 12 316.5 317.2 291.0 327.5 3.38 17 610 4268 3.0 -6.0 52 9.0 -1.3 26 11 318.1 318.9 292.0 331.1 4.01 18 606 4322 4.0 -20.0 15 24.0 -4.5 25 11 319.8 320.1 290.0 324.3 1.29 19 603 4362 4.4 -27.6 8 32.0 -5.3 24 11 320.8 320.9 289.7 323.1 0.66 20 500 5860 -4.1 5 9 328.0 21 449 6703 -9.9 -53.9 1 44.0 -16.2 331 9 331.0 331.0 292.0 331.2 0.06 22 440 6859 -9.7 -29.7 18 20.0 -14.9 325 9 333.2 333.3 293.3 335.9 0.74 23 400 7590 -15.3 -27.3 35 12.0 -18.4 295 9 335.1 335.3 294.0 338.8 1.02 24 389 7799 -17.3 -26.3 45 9.0 -19.7 295 9 335.2 335.4 294.1 339.4 1.15 25 348 8624 -20.9 -57.9 2 37.0 -24.7 295 9 341.1 341.2 294.6 341.3 0.04 26 334 8926 -22.5 -50.5 6 28.0 -25.9 295 9 343.0 343.0 295.1 343.4 0.11 27 300 9700 -29.7 -50.7 11 21.0 -31.7 295 9 343.5 343.5 295.3 344.0 0.12 28 256 10808 -39.7 -50.7 30 11.0 -40.5 199 23 344.7 344.7 295.6 345.3 0.14 29 250 10970 -40.7 -51.7 30 11.0 -41.4 185 25 345.6 345.6 295.8 346.1 0.13 30 246 11080 -41.5 -50.5 37 9.0 -42.1 184 26 346.0 346.0 295.8 346.6 0.15 31 240 11248 -41.9 -62.9 8 21.0 -42.8 181 28 347.8 347.8 296.2 348.0 0.03 32 200 12460 -52.5 -59.5 43 7.0 -52.7 165 42 349.6 349.6 296.6 349.9 0.06 33 199 12492 -52.7 -59.7 42 7.0 -52.9 167 42 349.8 349.8 296.7 350.1 0.06 34 189 12824 -54.5 -68.5 16 14.0 -54.8 186 38 352.1 352.1 297.1 352.2 0.02 35 150 14260 -67.1 -71.3 55 4.2 -67.1 270 21 354.5 354.5 297.6 354.6 0.02 36 142 14588 -69.9 -73.1 63 3.2 -69.9 275 21 355.2 355.2 297.7 355.3 0.01 37 129 15151 -74.9 -78.8 54 3.9 -74.9 283 20 356.1 356.1 297.9 356.1 0.01 38 116 15763 -77.3 -84.3 32 7.0 -77.3 292 20 362.7 362.7 299.2 362.7 0.00 39 100 16600 -83.1 -88.1 41 5.0 -83.1 305 19 367.2 367.2 300.1 367.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5774.00 m Freezing level: 549.68 mb = 5137.33 m = 16854.55 ft Wetbulb zero: 638.45 mb = 3895.88 m = 12781.59 ft Precipitable water: 1.74 inches Sfc-500 mean rel hum: 50.92 % Est. max temperature: 32.05 C = 89.69 F Sfc-Lift cond lev (LCL): 987.23 mb = 198.62 m = 651.65 ft T: 24.11 C 700-500 lapse rate: 5.40 C/km ThetaE index: 15.80 C Layer 1000.0- 780.0 mb Conv cond level (CCL): 937.01 mb = 655.97 m = 2152.11 ft Mean mixing ratio: 17.23 g/kg Conv temperature: 27.68 C = 81.83 F Cap Strength: 1.08 C Lifted Index: -1.01 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.13 C Lifted Index @700 mb: 0.09 C Showalter Index: 1.07 C Risk: Showers probable Total Totals Index: 41.40 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 19.70 C K Index: 23.30 Risk: 20-40 % chance of thunderstorms Sweat Index: 206.20 Risk: None Energy Index: -2.88 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 386.13 J/kg Max Up Vert Vel: 27.79 m/s Conv Inhibition (B-): 1.07 J/kg Cap Strength: 0.84 C Lift Cond Lev (LCL): 947.03 mb = 562.83 m = 1846.55 ft Lev Free Conv (LFC): 922.03 mb = 796.88 m = 2614.40 ft Equ Level (EL): 882.03 mb = 1180.69 m = 3873.59 ft B at Equ Level: 11.86 J/kg Max Parcel Lev (MPL): 122.03 mb = 15471.10 m = 50757.57 ft Wind level data Storm motion: 62 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 19 315 1 0.7 -0.7 | 250 7 6.2 2.3 1 1000 86 325 3 1.7 -2.5 | 266 7 7.3 0.5 2 925 769 280 1 1.0 -0.2 | 247 7 6.5 2.8 3 850 1500 75 5 -4.8 -1.3 | 203 2 0.7 1.7 4 700 3139 40 13 -8.4 -10.0 | 22 8 -2.8 -7.0 5 500 5860 5 9 -0.8 -9.0 | 322 8 4.8 -6.0 6 400 7590 295 9 8.2 -3.8 | 273 14 13.7 -0.8 7 300 9700 295 9 8.2 -3.8 | 273 14 13.7 -0.8 8 250 10970 185 25 2.2 24.9 | 195 29 7.7 27.9 9 200 12460 165 42 -10.9 40.6 | 173 44 -5.3 43.5 10 150 14260 270 21 21.0 -0.0 | 264 27 26.5 3.0 11 100 16600 305 19 15.6 -10.9 | 291 23 21.1 -7.9 Wind Parameters Mean winds (0-6000m): 31.8 at 8.4 knts Storm direction: 61.8 at 6.3 knts Shear (0-3000m) pos: 1.1 neg: 1.4 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 134.7 deg Storm rel helicity (0-3000m) pos: 8.5 neg: -8.8 tot: -0.3 m^2/s^2 ave: -0.1 10^-3 m/s^2 rel: -0.22 Storm rel vorticity (0-3000m) horiz: 3.8 stream: -0.8 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 44.13 Bulk Shear: 8.75 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 ------------------------------------------------------------------------------- 500 316 2 260 7| 0.0 0.9 0.9| 3.3 -3.1 0.2 0.4 0.07| 3.6 0.2 1000 316 2 257 7| 0.7 0.4 1.2| 6.6 -4.3 2.3 2.3 0.23| 3.1 0.7 1500 17 3 263 5| 2.2 0.3 2.5| 8.5 -5.5 3.0 2.0 0.01| 4.5 0.0 2000 50 3 255 3| 1.7 0.6 2.3| 8.5 -6.1 2.4 1.2 -0.13| 4.1 -0.5 2500 53 5 263 2| 1.3 1.1 2.4| 8.5 -6.9 1.6 0.6 -0.18| 3.9 -0.7 3000 48 6 302 2| 1.1 1.4 2.5| 8.5 -8.8 -0.3 -0.1 -0.22| 3.8 -0.8 4000 42 7 344 3| 0.8 1.2 2.0| 8.5 -14.8 -6.3 -1.6 -0.31| 3.3 -1.0 5000 36 8 348 4| 0.7 0.9 1.6| 8.5 -20.4 -11.9 -2.4 -0.38| 2.9 -1.1 6000 32 8 345 4| 0.6 0.8 1.4| 8.5 -26.3 -17.8 -3.0 -0.43| 2.7 -1.2 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251220.00.gif