UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122112.upa.cvt Date: 1200Z 21 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 21 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 1009 19 27.2 22.9 77 4.3 24.1 190 1 299.6 302.8 296.9 351.3 17.69 1 1000 79 26.8 22.5 77 4.3 23.7 175 5 300.0 303.1 296.8 350.9 17.41 2 927 748 24.2 19.3 74 4.9 20.7 282 9 303.9 306.7 296.5 349.6 15.38 3 925 767 24.0 19.2 75 4.8 20.6 285 9 303.8 306.7 296.5 349.4 15.31 4 878 1222 20.2 17.9 87 2.3 18.6 334 9 304.5 307.2 296.4 348.8 14.86 5 850 1502 18.4 15.3 82 3.1 16.3 5 9 305.4 307.8 295.3 344.2 12.97 6 782 2213 14.4 8.4 67 6.0 10.7 48 9 308.5 310.2 293.2 335.6 8.88 7 763 2420 12.4 10.3 87 2.1 11.0 61 9 308.5 310.5 294.3 340.0 10.37 8 722 2884 11.0 4.0 62 7.0 6.9 89 9 311.9 313.2 292.7 333.9 7.08 9 700 3142 10.4 -1.6 43 12.0 4.1 105 9 314.0 314.9 291.5 329.4 4.86 10 699 3154 10.4 -1.6 43 12.0 4.1 105 9 314.1 315.1 291.6 329.6 4.87 11 645 3816 4.4 -4.6 52 9.0 0.0 89 11 314.6 315.4 291.2 328.1 4.21 12 633 3969 3.6 -8.4 41 12.0 -1.8 86 12 315.4 316.0 290.5 325.8 3.20 13 625 4073 5.8 -29.2 6 35.0 -4.4 83 12 319.1 319.2 289.0 321.0 0.55 14 609 4285 5.4 78 13 321.0 15 602 4380 4.4 -17.6 18 22.0 -3.8 76 13 320.9 321.2 290.7 326.3 1.59 16 591 4530 3.8 -35.2 4 39.0 -6.2 72 14 321.9 322.0 289.7 323.1 0.32 17 529 5422 -1.9 -19.9 24 18.0 -8.2 51 17 325.4 325.7 291.9 330.6 1.49 18 515 5635 -1.7 -43.7 2 42.0 -10.4 46 18 328.2 328.2 291.4 328.8 0.15 19 500 5870 -3.3 -44.3 3 41.0 -11.4 40 19 329.0 329.0 291.6 329.6 0.15 20 453 6639 -8.3 -50.3 2 42.0 -15.1 18 23 332.2 332.2 292.4 332.5 0.08 21 406 7477 -12.7 -52.7 2 40.0 -18.4 353 26 337.0 337.1 293.7 337.3 0.07 22 400 7590 -13.7 -53.7 2 40.0 -19.1 350 27 337.2 337.2 293.7 337.4 0.06 23 365 8277 -19.5 -57.5 2 38.0 -23.5 337 24 338.4 338.4 294.0 338.6 0.04 24 340 8802 -21.3 -54.3 3 33.0 -25.0 327 22 342.9 342.9 295.1 343.2 0.07 25 300 9710 -28.9 -49.9 11 21.0 -31.0 310 19 344.6 344.7 295.6 345.2 0.13 26 250 10990 -39.1 -54.1 19 15.0 -40.1 180 21 347.9 348.0 296.3 348.3 0.10 27 234 11439 -43.1 -55.1 26 12.0 -43.7 177 23 348.5 348.5 296.4 348.9 0.09 28 233 11468 -43.3 -54.3 29 11.0 -43.9 177 23 348.6 348.7 296.4 349.1 0.10 29 232 11497 -43.7 -55.7 25 12.0 -44.3 177 23 348.5 348.5 296.4 348.8 0.09 30 200 12480 -50.3 -68.3 10 18.0 -50.7 170 27 353.1 353.1 297.3 353.2 0.02 31 150 14280 -67.3 -72.3 49 5.0 -67.4 255 13 354.2 354.2 297.5 354.2 0.01 32 144 14525 -69.5 -73.4 57 3.9 -69.5 257 12 354.5 354.5 297.6 354.5 0.01 33 122 15493 -78.3 -82.3 52 4.0 -78.3 263 9 355.6 355.6 297.8 355.6 0.00 34 117 15731 -79.7 -82.6 62 2.9 -79.7 264 8 357.3 357.3 298.2 357.3 0.00 35 101 16555 -84.5 -88.8 46 4.3 -84.5 270 5 363.4 363.4 299.4 363.4 0.00 36 100 16610 -84.1 -88.4 47 4.3 -84.1 270 5 365.2 365.2 299.7 365.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5791.00 m Freezing level: 549.67 mb = 5124.28 m = 16811.73 ft Wetbulb zero: 644.87 mb = 3818.03 m = 12526.19 ft Precipitable water: 1.71 inches Sfc-500 mean rel hum: 52.07 % Est. max temperature: 32.75 C = 90.94 F Sfc-Lift cond lev (LCL): 948.17 mb = 548.73 m = 1800.29 ft T: 24.97 C 700-500 lapse rate: 5.02 C/km ThetaE index: 15.75 C Layer 1000.0- 763.0 mb Conv cond level (CCL): 859.19 mb = 1409.12 m = 4623.03 ft Mean mixing ratio: 16.28 g/kg Conv temperature: 32.74 C = 90.93 F Cap Strength: 2.05 C Lifted Index: -0.45 C Risk: Thunderstorms probable Lifted Index @300 mb: -0.65 C Lifted Index @700 mb: -0.25 C Showalter Index: 1.78 C Risk: Showers probable Total Totals Index: 40.30 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 18.60 C K Index: 25.00 Risk: 20-40 % chance of thunderstorms Sweat Index: 220.60 Risk: None Energy Index: -2.71 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 278.40 J/kg Max Up Vert Vel: 23.60 m/s Conv Inhibition (B-): 41.58 J/kg Cap Strength: 2.05 C Lift Cond Lev (LCL): 897.06 mb = 1034.57 m = 3394.23 ft Lev Free Conv (LFC): 802.06 mb = 1996.93 m = 6551.53 ft Equ Level (EL): 222.06 mb = 11787.04 m = 38670.91 ft B at Equ Level: 272.43 J/kg Max Parcel Lev (MPL): 142.06 mb = 14604.11 m = 47913.17 ft Wind level data Storm motion: 80 at 8 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 1009 19 190 1 0.2 1.0 | 254 9 8.5 2.4 1 1000 79 175 5 -0.4 5.0 | 231 10 7.9 6.4 2 925 767 285 9 8.7 -2.3 | 273 17 17.0 -0.9 3 850 1502 5 9 -0.8 -9.0 | 315 11 7.6 -7.5 4 700 3142 105 9 -8.7 2.3 | 175 4 -0.3 3.8 5 500 5870 40 19 -12.2 -14.6 | 16 14 -3.9 -13.1 6 400 7590 350 27 4.7 -26.6 | 333 28 13.0 -25.2 7 300 9710 310 19 14.6 -12.2 | 295 25 22.9 -10.8 8 250 10990 180 21 0.0 21.0 | 200 24 8.4 22.4 9 200 12480 170 27 -4.7 26.6 | 187 28 3.7 28.0 10 150 14280 255 13 12.6 3.4 | 257 21 20.9 4.8 11 100 16610 270 5 5.0 -0.0 | 264 13 13.4 1.4 Wind Parameters Mean winds (0-6000m): 50.3 at 11.3 knts Storm direction: 80.3 at 8.5 knts Shear (0-3000m) pos: 1.6 neg: 0.0 tot: 1.6 10-3/s Storm rel Dir Shear (0-3000m): -86.5 deg Storm rel helicity (0-3000m) pos: 94.2 neg: -9.6 tot: 84.6 m^2/s^2 ave: 28.2 10^-3 m/s^2 rel: 0.56 Storm rel vorticity (0-3000m) horiz: 7.7 stream: 4.3 10^-3/s Energy-Hel index: 0.16 Bulk Rich Number: 7.34 Bulk Shear: 37.92 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 ------------------------------------------------------------------------------- 500 215 6 242 13| 7.2 0.0 7.2| 19.2 -9.6 9.6 19.1 0.12| 12.1 1.4 1000 269 7 264 16| 4.9 0.0 4.9| 62.0 -9.6 52.4 52.4 0.51| 11.3 5.7 1500 299 8 279 15| 3.4 0.0 3.4| 85.4 -9.6 75.8 50.5 0.58| 10.4 6.1 2000 329 8 294 14| 2.5 0.0 2.5| 91.3 -9.6 81.7 40.9 0.58| 9.0 5.2 2500 353 8 306 12| 2.0 0.0 2.0| 93.4 -9.6 83.8 33.5 0.55| 8.2 4.5 3000 11 8 315 10| 1.6 0.0 1.6| 94.2 -9.6 84.6 28.2 0.56| 7.7 4.3 4000 53 9 343 4| 1.2 0.5 1.7| 94.4 -13.8 80.6 20.2 0.41| 6.5 2.7 5000 60 10 3 4| 0.9 1.1 2.0| 94.4 -21.7 72.8 14.6 0.27| 5.9 1.6 6000 50 11 3 6| 0.8 1.5 2.3| 94.4 -38.9 55.6 9.3 0.15| 5.7 0.9 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251221.12.gif