UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 19 OCT 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 1006 19 28.4 23.4 74 5.0 24.7 5 3 301.0 304.4 297.7 354.9 18.30 1 1000 55 28.0 23.1 75 4.9 24.4 10 5 301.1 304.5 297.5 354.4 18.07 2 925 745 24.0 19.8 77 4.2 21.0 125 5 303.8 306.8 296.9 351.2 15.91 3 850 1482 19.0 17.4 90 1.6 17.9 85 1 306.0 308.8 296.8 350.7 14.87 4 789 2120 15.2 14.5 96 0.7 14.7 79 3 308.6 311.1 296.4 348.8 13.28 5 720 2894 12.6 7.6 72 5.0 9.5 72 6 313.9 315.6 294.8 342.3 9.14 6 700 3131 11.2 5.2 67 6.0 7.6 70 7 314.9 316.4 294.3 339.8 7.95 7 693 3215 10.6 4.6 66 6.0 7.1 71 7 315.1 316.6 294.1 339.3 7.70 8 623 4093 4.4 0.8 77 3.6 2.4 79 6 317.8 319.0 294.0 338.5 6.52 9 568 4843 1.0 -1.1 86 2.1 -0.2 86 6 322.3 323.5 294.9 342.5 6.23 10 500 5860 -4.1 -6.3 85 2.2 -5.2 95 5 328.0 329.0 295.3 344.0 4.78 11 422 7181 -10.7 -16.7 61 6.0 -12.9 224 3 335.9 336.4 295.4 344.6 2.45 12 400 7590 -14.1 -16.7 81 2.6 -15.0 265 3 336.7 337.2 295.7 345.8 2.59 13 379 7998 -16.9 -18.2 90 1.3 -17.4 243 4 338.2 338.7 295.9 346.8 2.41 14 375 8077 -17.3 -21.9 67 4.6 -18.7 239 4 338.7 339.1 295.6 345.1 1.77 15 364 8300 -18.5 -23.2 66 4.7 -19.9 227 4 340.0 340.3 295.7 345.9 1.62 16 326 9116 -23.1 -35.1 32 12.0 -25.4 183 6 344.5 344.7 295.9 346.9 0.59 17 325 9139 -22.9 -35.9 29 13.0 -25.4 182 6 345.1 345.2 296.0 347.3 0.55 18 300 9720 -27.9 -40.9 28 13.0 -29.7 150 7 346.1 346.1 296.1 347.5 0.36 19 272 10414 -33.3 -51.3 15 18.0 -34.9 158 8 348.1 348.1 296.3 348.6 0.12 20 260 10729 -35.7 -53.7 14 18.0 -37.1 162 9 349.1 349.1 296.5 349.5 0.10 21 255 10864 -36.9 -44.9 43 8.0 -37.7 163 9 349.2 349.3 296.7 350.3 0.27 22 251 10973 -37.9 -46.9 38 9.0 -38.7 165 9 349.3 349.4 296.7 350.2 0.22 23 250 11000 -38.1 -44.1 53 6.0 -38.7 165 9 349.4 349.5 296.8 350.7 0.30 24 249 11028 -38.3 -42.1 67 3.8 -38.7 165 9 349.5 349.6 296.8 351.1 0.38 25 243 11196 -39.9 -47.9 42 8.0 -40.5 168 9 349.6 349.6 296.7 350.4 0.21 26 237 11367 -41.3 -47.3 52 6.0 -41.8 170 9 350.0 350.0 296.8 350.9 0.23 27 233 11483 -42.3 -56.3 20 14.0 -43.0 171 9 350.2 350.2 296.7 350.5 0.08 28 232 11512 -42.7 -53.7 29 11.0 -43.3 172 9 350.0 350.0 296.7 350.5 0.11 29 230 11571 -42.9 -45.1 79 2.2 -43.1 172 9 350.5 350.6 297.0 351.8 0.30 30 207 12274 -49.3 -52.9 66 3.6 -49.5 182 9 351.2 351.3 297.0 351.8 0.14 31 200 12500 -51.1 -54.0 71 2.9 -51.2 185 9 351.8 351.9 297.1 352.4 0.12 32 197 12598 -52.1 -55.1 70 3.0 -52.2 184 9 351.8 351.8 297.1 352.3 0.11 33 192 12763 -53.1 -66.1 19 13.0 -53.4 182 10 352.8 352.8 297.3 352.9 0.03 34 188 12898 -54.3 -61.3 42 7.0 -54.5 181 10 353.0 353.0 297.3 353.2 0.05 35 185 13001 -55.3 -65.3 28 10.0 -55.5 180 11 353.0 353.0 297.3 353.1 0.03 36 182 13104 -56.3 -60.2 61 3.9 -56.4 178 11 353.0 353.0 297.3 353.3 0.06 37 174 13388 -58.3 -66.3 35 8.0 -58.5 175 12 354.3 354.3 297.5 354.4 0.03 38 158 13985 -64.1 -67.4 64 3.3 -64.1 169 14 354.4 354.4 297.6 354.5 0.03 39 152 14220 -66.1 -72.1 43 6.0 -66.1 166 15 354.9 354.9 297.7 354.9 0.01 40 150 14300 -66.7 -71.7 49 5.0 -66.7 165 15 355.2 355.2 297.7 355.3 0.02 41 110 16102 -82.3 -87.0 44 4.7 -82.3 157 17 358.8 358.8 298.5 358.8 0.00 42 100 16630 -85.7 -90.0 46 4.3 -85.7 155 17 362.1 362.1 299.1 362.2 0.00 TRP WND Sounding variables and indices 1000-500 mb thick: 5805.00 m Freezing level: 554.67 mb = 5042.07 m = 16542.03 ft Wetbulb zero: 571.33 mb = 4795.22 m = 15732.16 ft Precipitable water: 2.41 inches Sfc-500 mean rel hum: 81.14 % Est. max temperature: 33.24 C = 91.84 F Sfc-Lift cond lev (LCL): 935.94 mb = 640.92 m = 2102.74 ft T: 24.60 C 700-500 lapse rate: 5.61 C/km ThetaE index: 16.36 C Layer 1000.0- 568.0 mb Conv cond level (CCL): 856.59 mb = 1414.67 m = 4641.24 ft Mean mixing ratio: 16.82 g/kg Conv temperature: 33.23 C = 91.81 F Cap Strength: 1.89 C Lifted Index: -2.07 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -0.91 C Lifted Index @700 mb: -0.07 C Showalter Index: -1.37 C Risk: Thunderstorms probable Total Totals Index: 44.60 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.10 C Cross Totals Index: 21.50 C K Index: 34.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 215.80 Risk: None Energy Index: -1.38 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 480.66 J/kg Max Up Vert Vel: 31.01 m/s Conv Inhibition (B-): 36.97 J/kg Cap Strength: 1.89 C Lift Cond Lev (LCL): 895.78 mb = 1024.79 m = 3362.14 ft Lev Free Conv (LFC): 810.78 mb = 1886.53 m = 6189.33 ft Equ Level (EL): 740.78 mb = 2653.48 m = 8705.55 ft B at Equ Level: 14.13 J/kg Wind level data Storm motion: 110 at 4 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 1006 19 5 3 -0.3 -3.0 | 323 5 3.2 -4.3 1 1000 55 10 5 -0.9 -4.9 | 337 7 2.6 -6.2 2 925 745 125 5 -4.1 2.9 | 159 2 -0.6 1.6 3 850 1482 85 1 -1.0 -0.1 | 299 3 2.5 -1.4 4 700 3131 70 7 -6.6 -2.4 | 40 5 -3.1 -3.7 5 500 5860 95 5 -5.0 0.4 | 60 2 -1.5 -0.9 6 400 7590 265 3 3.0 0.3 | 279 7 6.5 -1.0 7 300 9720 150 7 -3.5 6.1 | 180 5 -0.0 4.8 8 250 11000 165 9 -2.3 8.7 | 189 7 1.2 7.4 9 200 12500 185 9 0.8 9.0 | 209 9 4.3 7.7 10 150 14300 165 15 -3.9 14.5 | 178 13 -0.4 13.2 11 100 16630 155 17 -7.2 15.4 | 165 15 -3.7 14.1 Wind Parameters Mean winds (0-6000m): 80.4 at 5.0 knts Storm direction: 110.4 at 3.7 knts Shear (0-3000m) pos: 0.9 neg: 0.8 tot: 1.7 10-3/s Storm rel Dir Shear (0-3000m): 75.6 deg Storm rel helicity (0-3000m) pos: 11.4 neg: -0.2 tot: 11.2 m^2/s^2 ave: 3.7 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 3.6 stream: 2.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 396.64 Bulk Shear: 1.21 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 45 5 360 5| 5.6 0.0 5.6| 7.7 0.0 7.7 15.5 0.77| 8.3 6.5 1000 82 5 33 2| 2.7 0.0 2.7| 8.8 0.0 8.8 8.8 0.78| 6.7 5.2 1500 92 4 19 1| 1.8 0.9 2.6| 8.9 -0.2 8.7 5.8 0.63| 5.4 3.4 2000 90 3 358 1| 1.3 0.5 1.8| 9.7 -0.2 9.5 4.8 0.66| 4.5 3.0 2500 85 4 1 2| 1.1 0.6 1.6| 10.6 -0.2 10.4 4.2 0.68| 4.0 2.7 3000 80 4 10 2| 0.9 0.8 1.7| 11.4 -0.2 11.2 3.7 0.65| 3.6 2.4 4000 77 5 22 3| 0.8 0.6 1.3| 12.1 -0.2 11.9 3.0 0.64| 2.9 1.9 5000 78 5 29 3| 0.7 0.5 1.1| 12.4 -0.2 12.2 2.4 0.62| 2.5 1.5 6000 80 5 33 3| 0.7 0.4 1.1| 13.0 -0.2 12.8 2.1 0.62| 2.3 1.4 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251019.12.gif