UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122612.upa.cvt Date: 1200Z 26 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 26 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 27.4 23.0 77 4.4 24.2 180 1 299.7 302.9 297.0 351.7 17.78 1 1000 92 26.8 22.7 78 4.1 23.8 170 5 300.0 303.2 297.0 351.6 17.63 2 925 779 22.6 18.9 80 3.7 20.0 335 5 302.4 305.2 295.9 346.8 15.02 3 850 1511 17.8 15.5 86 2.3 16.3 30 11 304.8 307.2 295.3 344.0 13.14 4 849 1521 17.8 15.6 87 2.2 16.3 30 11 304.9 307.4 295.4 344.4 13.24 5 821 1809 18.6 11.6 64 7.0 14.0 40 10 308.7 310.7 294.4 340.6 10.51 6 700 3158 10.0 7.0 82 3.0 8.2 85 7 313.6 315.3 294.7 341.6 9.02 7 593 4516 0.2 0.2 100 0.0 0.2 87 7 317.4 318.7 293.9 338.3 6.56 8 589 4570 1.4 -0.1 90 1.5 0.6 88 7 319.4 320.7 294.3 340.1 6.46 9 577 4736 1.2 -3.0 74 4.2 -1.0 88 7 321.1 322.1 293.9 338.3 5.32 10 526 5478 -2.1 -10.1 54 8.0 -5.7 89 7 325.7 326.4 293.6 337.0 3.37 11 515 5646 -3.5 -7.8 72 4.3 -5.5 90 7 326.0 326.8 294.3 339.8 4.13 12 500 5880 -3.7 -19.7 28 16.0 -9.3 90 7 328.5 328.8 292.9 334.2 1.60 13 493 5991 -3.9 -23.9 19 20.0 -10.2 94 7 329.6 329.8 292.7 333.6 1.12 14 439 6892 -10.1 -35.1 11 25.0 -15.7 125 6 332.9 333.0 292.9 334.6 0.44 15 430 7051 -11.3 -33.3 14 22.0 -16.4 131 6 333.3 333.4 293.2 335.4 0.54 16 426 7122 -11.9 -22.9 40 11.0 -15.3 133 6 333.5 333.8 294.0 338.6 1.42 17 402 7562 -14.5 -46.5 5 32.0 -19.5 149 5 335.7 335.7 293.4 336.2 0.15 18 400 7600 -14.9 -43.9 6 29.0 -19.7 150 5 335.6 335.7 293.4 336.4 0.19 19 395 7695 -15.7 -30.7 26 15.0 -19.2 154 5 335.8 335.9 294.0 338.6 0.75 20 393 7733 -16.1 -22.1 60 6.0 -17.9 156 5 335.8 336.1 294.7 341.7 1.66 21 392 7752 -16.1 -21.0 66 4.9 -17.6 156 5 336.0 336.4 294.9 342.5 1.83 22 380 7985 -17.3 -22.3 65 5.0 -18.8 166 4 337.4 337.8 295.1 343.5 1.68 23 370 8185 -17.9 -30.9 31 13.0 -20.9 174 4 339.2 339.4 294.8 342.2 0.79 24 357 8451 -19.1 -33.1 28 14.0 -22.1 186 3 341.1 341.2 295.2 343.6 0.66 25 333 8965 -22.9 -42.9 14 20.0 -25.9 207 2 342.7 342.8 295.2 343.8 0.26 26 300 9720 -28.5 -44.5 20 16.0 -30.5 240 1 345.2 345.3 295.8 346.2 0.24 27 250 11000 -39.7 -45.7 53 6.0 -40.2 180 9 347.0 347.1 296.2 348.1 0.26 28 249 11027 -40.1 -45.1 59 5.0 -40.5 180 9 346.8 346.9 296.2 348.0 0.27 29 221 11833 -46.5 -50.1 67 3.6 -46.7 174 22 349.0 349.1 296.6 349.8 0.18 30 217 11955 -47.5 -52.5 56 5.0 -47.7 174 24 349.3 349.3 296.6 349.9 0.14 31 215 12016 -47.9 -60.9 21 13.0 -48.4 173 25 349.6 349.6 296.6 349.8 0.05 32 209 12202 -49.7 -54.7 56 5.0 -49.9 172 28 349.6 349.7 296.7 350.1 0.11 33 200 12490 -51.9 -56.5 58 4.6 -52.1 170 33 350.6 350.6 296.8 351.0 0.09 34 186 12953 -55.9 -60.6 56 4.7 -56.0 173 34 351.5 351.5 297.0 351.7 0.06 35 176 13301 -59.1 -63.3 58 4.2 -59.2 174 35 351.8 351.8 297.1 352.0 0.04 36 167 13626 -61.3 -73.3 19 12.0 -61.4 176 36 353.5 353.5 297.4 353.5 0.01 37 150 14280 -67.3 -74.3 36 7.0 -67.4 180 38 354.2 354.2 297.5 354.2 0.01 38 117 15739 -79.9 -84.3 48 4.4 -79.9 140 26 357.0 357.0 298.1 357.0 0.00 39 100 16620 -84.5 -87.8 56 3.3 -84.5 115 19 364.5 364.5 299.5 364.5 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5788.00 m Freezing level: 558.45 mb = 5005.87 m = 16423.24 ft Wetbulb zero: 584.55 mb = 4631.28 m = 15194.32 ft Precipitable water: 2.13 inches Sfc-500 mean rel hum: 77.18 % Est. max temperature: 32.19 C = 89.93 F Sfc-Lift cond lev (LCL): 947.76 mb = 564.83 m = 1853.10 ft T: 23.91 C 700-500 lapse rate: 5.03 C/km ThetaE index: 7.69 C Layer 1000.0- 849.0 mb Conv cond level (CCL): 870.51 mb = 1304.62 m = 4280.19 ft Mean mixing ratio: 16.22 g/kg Conv temperature: 31.84 C = 89.32 F Cap Strength: 2.35 C Lifted Index: -0.44 C Risk: Thunderstorms probable Lifted Index @300 mb: 0.37 C Lifted Index @700 mb: -0.33 C Showalter Index: 1.50 C Risk: Showers probable Total Totals Index: 40.70 C Risk: None Vertical Totals Index: 21.50 C Cross Totals Index: 19.20 C K Index: 34.00 Risk: 60-80 % chance of thunderstorms Sweat Index: 215.00 Risk: None Energy Index: -1.89 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 249.52 J/kg Max Up Vert Vel: 22.34 m/s Conv Inhibition (B-): 84.09 J/kg Cap Strength: 2.26 C Lift Cond Lev (LCL): 907.02 mb = 948.95 m = 3113.33 ft Lev Free Conv (LFC): 712.02 mb = 3013.96 m = 9888.21 ft Equ Level (EL): 352.02 mb = 8554.86 m = 28066.78 ft B at Equ Level: 246.00 J/kg Max Parcel Lev (MPL): 142.02 mb = 14601.04 m = 47903.08 ft Wind level data Storm motion: 97 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 19 180 1 0.0 1.0 | 266 6 5.5 0.4 1 1000 92 170 5 -0.9 4.9 | 227 6 4.6 4.3 2 925 779 335 5 2.1 -4.5 | 304 9 7.6 -5.2 3 850 1511 30 11 -5.5 -9.5 | 360 10 0.0 -10.2 4 700 3158 85 7 -7.0 -0.6 | 50 2 -1.5 -1.2 5 500 5880 90 7 -7.0 0.0 | 67 2 -1.5 -0.6 6 400 7600 150 5 -2.5 4.3 | 219 5 3.0 3.7 7 300 9720 240 1 0.9 0.5 | 271 6 6.4 -0.1 8 250 11000 180 9 0.0 9.0 | 213 10 5.5 8.4 9 200 12490 170 33 -5.7 32.5 | 180 32 -0.2 31.9 10 150 14280 180 38 0.0 38.0 | 188 38 5.5 37.4 11 100 16620 115 19 -17.2 8.0 | 122 14 -11.7 7.4 Wind Parameters Mean winds (0-6000m): 66.6 at 7.4 knts Storm direction: 96.6 at 5.5 knts Shear (0-3000m) pos: 1.3 neg: 0.0 tot: 1.3 10-3/s Storm rel Dir Shear (0-3000m): 136.6 deg Storm rel helicity (0-3000m) pos: 64.8 neg: -5.8 tot: 59.0 m^2/s^2 ave: 19.7 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 6.2 stream: 3.9 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 14.09 Bulk Shear: 17.71 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 ------------------------------------------------------------------------------- 500 214 5 248 9| 5.3 0.0 5.3| 17.5 -5.8 11.6 23.3 0.26| 12.8 3.4 1000 322 5 298 10| 4.1 0.0 4.1| 38.0 -5.8 32.2 32.2 0.54| 10.5 5.7 1500 11 6 328 8| 4.1 0.0 4.1| 56.9 -5.8 51.1 34.0 0.66| 9.5 6.2 2000 24 7 341 8| 2.7 0.0 2.7| 61.4 -5.8 55.5 27.8 0.65| 7.9 5.2 2500 33 8 350 7| 1.9 0.0 1.9| 63.7 -5.8 57.9 23.2 0.64| 7.0 4.4 3000 39 8 355 7| 1.3 0.0 1.3| 64.8 -5.8 59.0 19.7 0.62| 6.2 3.9 4000 51 8 5 5| 0.9 0.0 0.9| 65.1 -5.8 59.2 14.8 0.62| 4.8 3.0 5000 60 7 13 4| 0.7 0.0 0.7| 65.1 -5.8 59.3 11.9 0.62| 3.9 2.4 6000 67 7 20 4| 0.6 0.0 0.6| 65.4 -5.8 59.6 9.9 0.63| 3.3 2.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251226.12.gif