UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101212.upa.cvt Date: 1200Z 12 OCT 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 12 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 1009 19 25.8 24.6 93 1.2 24.9 0 0 298.2 301.8 297.8 355.4 19.65 1 1000 77 25.6 23.8 90 1.8 24.3 185 1 298.8 302.2 297.4 353.8 18.88 2 987 193 26.0 22.1 79 3.9 23.2 182 2 300.3 303.4 296.8 350.7 17.21 3 925 764 22.4 20.8 91 1.6 21.3 170 7 302.2 305.3 297.1 352.3 16.95 4 850 1497 18.2 17.2 94 1.0 17.5 155 7 305.2 307.9 296.4 349.1 14.68 5 825 1753 16.6 16.3 98 0.3 16.4 145 7 306.1 308.8 296.4 349.0 14.28 6 774 2296 14.4 13.1 92 1.3 13.6 124 6 309.4 311.7 296.0 347.0 12.34 7 766 2385 15.0 11.7 81 3.3 12.9 120 6 311.0 313.1 295.7 345.8 11.35 8 726 2839 13.4 7.4 67 6.0 9.7 102 5 314.0 315.7 294.8 341.8 8.94 9 700 3146 11.2 8.0 81 3.2 9.2 90 5 314.9 316.7 295.5 345.0 9.67 10 642 3865 7.8 4.2 78 3.6 5.6 49 6 318.9 320.5 295.4 344.6 8.09 11 542 5240 -1.5 -2.7 92 1.2 -2.1 328 8 323.7 324.8 295.0 342.6 5.80 12 531 5403 -2.1 -2.8 95 0.7 -2.5 319 8 324.8 326.0 295.3 344.1 5.87 13 500 5880 -4.9 -6.5 89 1.6 -5.7 290 9 327.1 328.0 295.0 342.7 4.71 14 488 6071 -5.3 -12.3 58 7.0 -8.2 288 9 328.9 329.5 294.1 339.3 3.05 15 446 6774 -9.7 -11.8 85 2.1 -10.6 282 10 331.9 332.6 295.2 343.8 3.48 16 436 6950 -10.1 -14.6 70 4.5 -11.9 281 10 333.5 334.1 295.1 343.4 2.83 17 434 6985 -10.1 -16.1 61 6.0 -12.4 280 10 334.0 334.5 295.0 342.8 2.51 18 400 7610 -15.1 -16.8 87 1.7 -15.7 275 11 335.4 335.9 295.4 344.4 2.57 19 381 7976 -17.7 -18.9 90 1.2 -18.1 302 12 336.6 337.1 295.4 344.7 2.26 20 328 9084 -23.7 -26.7 76 3.0 -24.5 25 17 343.1 343.4 296.2 348.0 1.31 21 306 9588 -27.7 -28.6 92 0.9 -27.9 64 18 344.4 344.6 296.4 348.8 1.18 22 300 9730 -28.7 -31.3 78 2.6 -29.2 75 19 344.9 345.1 296.3 348.5 0.93 23 281 10192 -32.3 -37.2 62 4.9 -33.0 77 18 346.3 346.4 296.3 348.5 0.56 24 261 10705 -36.7 -39.8 73 3.1 -37.1 79 16 347.2 347.3 296.4 349.0 0.46 25 250 11000 -38.9 -43.0 65 4.1 -39.3 80 15 348.2 348.3 296.5 349.6 0.34 26 200 12490 -52.7 -57.6 55 4.9 -52.9 45 9 349.3 349.3 296.5 349.7 0.08 27 198 12555 -53.1 -58.1 54 5.0 -53.2 46 9 349.7 349.7 296.6 350.0 0.08 28 176 13302 -59.1 -68.1 30 9.0 -59.2 61 13 351.8 351.8 297.0 351.9 0.02 29 150 14280 -68.3 -71.6 62 3.3 -68.3 80 19 352.4 352.4 297.2 352.5 0.02 30 149 14320 -68.5 -71.8 62 3.3 -68.5 80 19 352.8 352.8 297.3 352.8 0.02 31 132 15035 -74.3 -81.3 33 7.0 -74.3 88 22 354.8 354.8 297.7 354.9 0.00 32 108 16183 -80.7 -84.6 52 3.9 -80.7 100 27 363.7 363.7 299.4 363.7 0.00 33 100 16620 -77.3 -84.3 32 7.0 -77.3 85 27 378.4 378.4 302.0 378.4 0.00 TRP 108 16183 -80.7 -84.6 52 3.9 -80.7 100 27 363.7 363.7 299.4 363.7 0.00 WND Sounding variables and indices 1000-500 mb thick: 5803.00 m Freezing level: 558.13 mb = 5018.13 m = 16463.49 ft Wetbulb zero: 569.57 mb = 4837.05 m = 15869.38 ft Precipitable water: 2.52 inches Sfc-500 mean rel hum: 85.95 % Est. max temperature: 32.47 C = 90.45 F Sfc-Lift cond lev (LCL): 992.02 mb = 147.92 m = 485.30 ft T: 25.84 C 700-500 lapse rate: 5.89 C/km ThetaE index: 10.47 C Layer 850.0- 700.0 mb Conv cond level (CCL): 891.60 mb = 1082.79 m = 3552.41 ft Mean mixing ratio: 17.33 g/kg Conv temperature: 31.15 C = 88.07 F Cap Strength: 1.19 C Lifted Index: -2.66 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -1.42 C Lifted Index @700 mb: 0.05 C Showalter Index: -1.64 C Risk: Thunderstorms probable Total Totals Index: 45.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.10 C Cross Totals Index: 22.10 C K Index: 37.10 Risk: > 80 % chance of thunderstorms Sweat Index: 229.40 Risk: None Energy Index: -1.30 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 628.77 J/kg Max Up Vert Vel: 35.46 m/s Conv Inhibition (B-): 18.56 J/kg Cap Strength: 1.19 C Lift Cond Lev (LCL): 924.84 mb = 765.47 m = 2511.36 ft Lev Free Conv (LFC): 849.84 mb = 1498.58 m = 4916.55 ft Equ Level (EL): 769.84 mb = 2342.12 m = 7684.02 ft B at Equ Level: 21.97 J/kg Wind level data Storm motion: 194 at 5 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 0 0 -0.0 -0.0 | 14 5 -1.1 -4.6 1 1000 77 185 1 0.1 1.0 | 16 4 -1.0 -3.6 2 925 764 170 7 -1.2 6.9 | 134 3 -2.3 2.2 3 850 1497 155 7 -3.0 6.3 | 113 4 -4.1 1.7 4 700 3146 90 5 -5.0 0.0 | 53 8 -6.1 -4.6 5 500 5880 290 9 8.5 -3.1 | 316 11 7.3 -7.7 6 400 7610 275 11 11.0 -1.0 | 300 11 9.8 -5.6 7 300 9730 75 19 -18.4 -4.9 | 64 22 -19.5 -9.6 8 250 11000 80 15 -14.8 -2.6 | 65 17 -15.9 -7.2 9 200 12490 45 9 -6.4 -6.4 | 34 13 -7.5 -11.0 10 150 14280 80 19 -18.7 -3.3 | 68 21 -19.8 -7.9 11 108 16183 100 27 -26.6 4.7 | 90 28 -27.7 0.0 12 100 16620 85 27 -26.9 -2.4 | 76 29 -28.0 -7.0 Wind Parameters Mean winds (0-6000m): 163.5 at 6.4 knts Storm direction: 193.5 at 4.8 knts Shear (0-3000m) pos: 0.8 neg: 1.1 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 42.6 deg Storm rel helicity (0-3000m) pos: 2.2 neg: -10.7 tot: -8.5 m^2/s^2 ave: -2.8 10^-3 m/s^2 rel: -0.20 Storm rel vorticity (0-3000m) horiz: 2.7 stream: -0.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 307.35 Bulk Shear: 2.05 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 ------------------------------------------------------------------------------- 500 177 3 31 2| 5.0 0.0 5.0| 1.5 0.0 1.5 3.0 0.56| 5.1 2.9 1000 170 4 83 2| 2.5 1.2 3.7| 2.2 -0.4 1.8 1.8 0.47| 4.0 1.9 1500 166 5 102 2| 1.7 1.0 2.7| 2.2 -1.4 0.7 0.5 0.29| 3.1 0.9 2000 160 6 102 3| 1.3 1.1 2.3| 2.2 -4.2 -2.0 -1.0 0.05| 2.9 0.1 2500 153 6 97 4| 1.0 1.1 2.1| 2.2 -7.3 -5.1 -2.0 -0.10| 2.8 -0.3 3000 148 6 92 4| 0.8 1.1 1.9| 2.2 -10.7 -8.5 -2.8 -0.20| 2.7 -0.5 4000 131 6 81 5| 0.6 1.3 2.0| 2.2 -21.8 -19.7 -4.9 -0.36| 2.7 -1.0 5000 119 6 74 7| 0.5 1.3 1.8| 2.2 -43.9 -41.7 -8.3 -0.52| 2.9 -1.5 6000 164 6 117 3| 0.4 1.0 1.4| 2.2 -66.9 -64.7 -10.8 -0.62| 3.1 -1.9 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20251012.12.gif