UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121612.upa.cvt Date: 1200Z 16 DEC 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 16 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 27.2 23.1 78 4.1 24.2 165 1 299.4 302.7 297.0 351.6 17.87 1 1000 99 26.6 22.6 79 4.0 23.7 145 3 299.8 302.9 296.8 351.0 17.52 2 925 786 23.0 20.7 87 2.3 21.3 330 7 302.8 305.9 297.2 352.7 16.84 3 881 1210 20.0 18.6 92 1.4 19.0 13 9 304.0 306.8 296.7 350.1 15.49 4 853 1490 19.4 13.4 68 6.0 15.4 42 11 306.2 308.3 294.4 340.4 11.40 5 850 1520 19.2 13.2 68 6.0 15.3 45 11 306.3 308.4 294.4 340.2 11.29 6 791 2134 13.6 11.8 89 1.8 12.4 62 13 306.6 308.7 294.3 340.0 11.06 7 766 2405 12.4 11.6 95 0.8 11.9 69 14 308.2 310.3 294.9 342.3 11.28 8 700 3158 8.2 6.3 88 1.9 7.1 90 17 311.6 313.2 293.9 338.1 8.59 9 654 3718 5.4 1.8 78 3.6 3.4 91 15 314.5 315.8 293.2 335.5 6.68 10 634 3972 4.8 -0.2 70 5.0 2.1 91 13 316.6 317.8 293.2 335.6 5.96 11 588 4586 2.8 -12.2 32 15.0 -3.5 93 11 321.2 321.7 291.6 329.7 2.55 12 565 4908 0.4 -8.6 51 9.0 -3.7 93 9 322.1 322.8 292.7 333.8 3.53 13 551 5110 -0.3 -20.3 20 20.0 -7.2 94 8 323.6 323.8 291.2 328.3 1.38 14 539 5286 -1.7 -10.7 50 9.0 -5.6 94 8 323.9 324.6 292.9 334.4 3.14 15 513 5678 -4.9 -12.9 53 8.0 -8.1 95 6 324.7 325.2 292.8 334.0 2.76 16 500 5880 -5.9 -12.9 58 7.0 -8.7 95 5 325.8 326.4 293.2 335.4 2.83 17 492 6006 -6.5 -11.5 68 5.0 -8.6 103 5 326.6 327.3 293.7 337.5 3.23 18 421 7202 -13.7 -21.7 51 8.0 -16.2 176 8 332.3 332.6 293.8 338.0 1.60 19 417 7275 -13.9 -24.9 39 11.0 -17.0 180 8 332.9 333.2 293.7 337.3 1.22 20 400 7590 -13.3 -35.3 14 22.0 -18.1 200 9 337.7 337.8 294.2 339.5 0.47 21 399 7609 -13.3 -36.3 13 23.0 -18.2 201 9 337.9 338.0 294.2 339.6 0.43 22 398 7628 -13.1 -34.1 15 21.0 -17.9 201 9 338.4 338.6 294.4 340.5 0.54 23 362 8346 -17.3 -32.3 26 15.0 -20.7 223 9 342.1 342.3 295.5 344.8 0.70 24 314 9393 -27.1 -33.1 57 6.0 -28.2 255 9 342.7 342.8 295.6 345.6 0.75 25 300 9720 -29.7 -37.7 46 8.0 -30.9 265 9 343.5 343.6 295.6 345.5 0.50 26 263 10642 -36.9 -51.9 20 15.0 -38.0 222 10 346.2 346.2 295.9 346.7 0.12 27 250 10990 -39.9 -52.9 24 13.0 -40.8 205 11 346.7 346.8 296.0 347.2 0.11 28 238 11323 -42.9 -49.9 46 7.0 -43.3 194 17 347.1 347.2 296.1 347.8 0.17 29 235 11409 -43.5 -55.5 25 12.0 -44.1 191 19 347.5 347.5 296.1 347.9 0.09 30 222 11788 -46.9 -50.3 68 3.4 -47.1 178 26 348.0 348.0 296.3 348.7 0.17 31 220 11848 -47.3 -54.3 45 7.0 -47.6 176 28 348.2 348.3 296.4 348.7 0.11 32 214 12030 -49.1 -53.3 61 4.2 -49.3 170 31 348.2 348.2 296.4 348.7 0.13 33 208 12216 -50.1 -61.1 26 11.0 -50.4 164 35 349.5 349.5 296.5 349.7 0.05 34 200 12470 -52.5 -61.5 33 9.0 -52.8 155 40 349.6 349.6 296.6 349.8 0.05 35 196 12601 -53.7 -61.7 37 8.0 -53.9 156 40 349.7 349.8 296.6 350.0 0.05 36 193 12700 -54.5 -68.5 16 14.0 -54.8 157 40 350.0 350.0 296.7 350.1 0.02 37 186 12936 -56.3 -62.3 47 6.0 -56.4 160 39 350.8 350.8 296.8 351.0 0.05 38 169 13539 -61.3 -63.8 72 2.5 -61.3 167 38 352.3 352.3 297.1 352.4 0.04 39 163 13763 -63.3 -66.4 66 3.1 -63.3 169 37 352.6 352.6 297.2 352.7 0.03 40 159 13916 -64.3 -71.3 38 7.0 -64.4 171 37 353.4 353.4 297.4 353.4 0.02 41 150 14270 -67.7 -71.8 56 4.1 -67.7 175 36 353.5 353.5 297.4 353.5 0.02 42 143 14557 -69.9 -74.9 48 5.0 -69.9 186 33 354.5 354.5 297.6 354.5 0.01 43 116 15769 -81.5 -86.5 42 5.0 -81.5 232 19 354.9 354.9 297.7 354.9 0.00 44 114 15866 -81.7 -88.7 29 7.0 -81.7 236 18 356.3 356.3 298.0 356.3 0.00 45 112 15967 -77.9 -86.9 22 9.0 -77.9 240 17 365.2 365.2 299.7 365.2 0.00 46 100 16610 -81.3 -89.3 25 8.0 -81.3 265 9 370.6 370.6 300.7 370.7 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5781.00 m Freezing level: 557.00 mb = 5023.22 m = 16480.17 ft Wetbulb zero: 616.98 mb = 4193.80 m = 13759.03 ft Precipitable water: 2.14 inches Sfc-500 mean rel hum: 71.57 % Est. max temperature: 33.33 C = 92.00 F Sfc-Lift cond lev (LCL): 952.83 mb = 524.76 m = 1721.64 ft T: 24.37 C 700-500 lapse rate: 5.18 C/km ThetaE index: 12.79 C Layer 881.0- 766.0 mb Conv cond level (CCL): 885.30 mb = 1167.88 m = 3831.58 ft Mean mixing ratio: 17.16 g/kg Conv temperature: 31.66 C = 88.99 F Cap Strength: 1.61 C Lifted Index: -3.63 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.36 C Lifted Index @700 mb: -2.89 C Showalter Index: 0.82 C Risk: Thunderstorms probable Total Totals Index: 44.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 25.10 C Cross Totals Index: 19.10 C K Index: 36.40 Risk: > 80 % chance of thunderstorms Sweat Index: 185.40 Risk: None Energy Index: -0.93 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 903.94 J/kg Max Up Vert Vel: 42.52 m/s Conv Inhibition (B-): 27.76 J/kg Cap Strength: 1.61 C Lift Cond Lev (LCL): 917.92 mb = 852.88 m = 2798.14 ft Lev Free Conv (LFC): 822.92 mb = 1796.48 m = 5893.88 ft Equ Level (EL): 172.92 mb = 13394.91 m = 43946.02 ft B at Equ Level: 901.64 J/kg Wind level data Storm motion: 108 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 1011 19 165 1 -0.3 1.0 | 281 7 7.4 -1.5 1 1000 99 145 3 -1.7 2.5 | 270 6 5.9 0.0 2 925 786 330 7 3.5 -6.1 | 307 14 11.1 -8.5 3 850 1520 45 11 -7.8 -7.8 | 1 10 -0.2 -10.2 4 700 3158 90 17 -17.0 0.0 | 75 10 -9.4 -2.4 5 500 5880 95 5 -5.0 0.4 | 307 3 2.6 -2.0 6 400 7590 200 9 3.1 8.5 | 241 12 10.7 6.0 7 300 9720 265 9 9.0 0.8 | 276 17 16.6 -1.6 8 250 10990 205 11 4.6 10.0 | 238 14 12.3 7.5 9 200 12470 155 40 -16.9 36.3 | 165 35 -9.3 33.8 10 150 14270 175 36 -3.1 35.9 | 188 34 4.5 33.4 11 100 16610 265 9 9.0 0.8 | 276 17 16.6 -1.6 Wind Parameters Mean winds (0-6000m): 77.7 at 10.7 knts Storm direction: 107.7 at 8.0 knts Shear (0-3000m) pos: 3.2 neg: 1.6 tot: 4.8 10-3/s Storm rel Dir Shear (0-3000m): 147.0 deg Storm rel helicity (0-3000m) pos: 71.7 neg: -13.3 tot: 58.4 m^2/s^2 ave: 19.5 10^-3 m/s^2 rel: 0.55 Storm rel vorticity (0-3000m) horiz: 7.0 stream: 3.8 10^-3/s Energy-Hel index: 0.29 Bulk Rich Number: 145.39 Bulk Shear: 6.22 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 79 4 309 5| 0.0 6.3 6.3| 5.8 -2.1 3.7 7.5 0.34| 10.5 3.6 1000 339 5 308 12| 0.0 4.8 4.8| 16.5 -13.3 3.3 3.3 0.14| 10.5 1.4 1500 10 7 325 11| 3.0 3.2 6.1| 43.1 -13.3 29.9 19.9 0.38| 10.1 3.8 2000 30 8 339 10| 3.1 2.4 5.5| 52.0 -13.3 38.7 19.4 0.44| 8.4 3.7 2500 44 9 352 9| 3.2 1.9 5.1| 61.4 -13.3 48.1 19.3 0.50| 7.5 3.7 3000 57 10 7 8| 3.2 1.6 4.8| 71.7 -13.3 58.4 19.5 0.55| 7.0 3.8 4000 70 12 27 7| 2.1 1.2 3.3| 74.7 -14.7 60.0 15.0 0.50| 5.8 2.9 5000 75 11 33 6| 1.3 1.0 2.3| 74.7 -16.8 57.9 11.6 0.41| 5.1 2.1 6000 78 11 31 5| 1.0 0.8 1.8| 74.7 -19.2 55.5 9.3 0.31| 4.7 1.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251216.12.gif