UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042812.upa.cvt Date: 1200Z 28 APR 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 28 APR 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 1007 19 29.2 24.5 76 4.7 25.7 150 3 301.7 305.3 298.6 359.6 19.57 1 1000 63 28.6 24.3 78 4.3 25.4 150 7 301.8 305.3 298.5 359.3 19.47 2 962 407 25.4 23.5 89 1.9 24.0 135 12 301.9 305.4 298.5 358.9 19.28 3 941 602 24.2 21.4 84 2.8 22.2 127 15 302.6 305.8 297.4 353.8 17.30 4 930 705 25.0 18.0 65 7.0 20.1 122 16 304.4 307.0 295.8 346.4 14.10 5 925 753 24.6 16.6 61 8.0 19.1 120 17 304.5 306.9 295.1 343.1 12.95 6 908 916 24.8 12.8 47 12.0 16.9 98 14 306.3 308.2 293.6 337.2 10.28 7 874 1250 21.4 18.0 81 3.4 19.0 53 9 306.1 308.9 296.9 351.2 15.03 8 851 1481 20.0 17.5 86 2.5 18.2 21 5 307.0 309.8 297.1 352.0 14.95 9 850 1491 19.8 17.3 86 2.5 18.1 20 5 306.9 309.6 296.9 351.4 14.78 10 741 2661 13.4 3.4 51 10.0 7.6 62 23 312.2 313.5 292.4 332.8 6.61 11 733 2753 14.2 -15.8 11 30.0 2.1 66 25 314.0 314.3 288.5 319.1 1.52 12 700 3141 11.8 -10.2 20 22.0 2.0 80 31 315.6 316.0 289.9 323.8 2.51 13 697 3177 11.4 -6.6 28 18.0 2.8 80 31 315.5 316.1 290.6 326.3 3.34 14 681 3370 10.8 -23.2 7 34.0 -0.9 81 29 316.9 317.1 288.7 319.9 0.87 15 607 4319 5.6 -12.4 26 18.0 -2.1 84 22 321.5 322.0 291.6 329.7 2.43 16 552 5090 2.2 -34.8 4 37.0 -7.4 87 15 326.4 326.4 291.0 327.7 0.36 17 507 5770 -2.9 -35.9 6 33.0 -10.8 90 10 328.2 328.3 291.6 329.5 0.35 18 500 5880 -3.5 -30.5 10 27.0 -10.8 90 9 328.8 328.9 292.0 331.0 0.60 19 476 6266 -5.5 -41.5 4 36.0 -12.9 86 9 331.0 331.0 292.2 331.8 0.21 20 406 7496 -11.7 -43.7 5 32.0 -17.5 71 9 338.3 338.4 294.1 339.1 0.20 21 400 7610 -12.5 -43.5 6 31.0 -18.1 70 9 338.7 338.8 294.2 339.6 0.20 22 374 8119 -16.5 -32.5 24 16.0 -20.1 63 8 340.0 340.2 294.9 342.6 0.67 23 349 8636 -19.9 -51.9 4 32.0 -23.9 56 6 342.2 342.2 295.0 342.6 0.09 24 322 9228 -24.5 -39.5 24 15.0 -26.9 47 4 343.8 343.9 295.6 345.4 0.38 25 300 9740 -28.3 -48.3 13 20.0 -30.5 40 3 345.5 345.5 295.8 346.2 0.16 26 264 10644 -36.5 -50.5 22 14.0 -37.6 121 3 346.4 346.4 296.0 346.9 0.14 27 252 10965 -38.9 -64.9 5 26.0 -40.1 150 3 347.4 347.4 296.1 347.5 0.02 28 250 11020 -39.3 -63.3 6 24.0 -40.4 155 3 347.6 347.6 296.1 347.8 0.03 29 236 11412 -42.3 -53.3 29 11.0 -42.9 146 5 348.9 348.9 296.5 349.4 0.11 30 227 11674 -43.9 -58.9 17 15.0 -44.6 140 6 350.3 350.3 296.8 350.6 0.06 31 200 12510 -51.3 -64.3 20 13.0 -51.7 120 11 351.5 351.5 297.0 351.7 0.03 32 164 13766 -62.5 -68.5 44 6.0 -62.6 75 12 353.3 353.3 297.4 353.4 0.02 33 150 14310 -67.3 -73.3 42 6.0 -67.4 55 13 354.2 354.2 297.5 354.2 0.01 34 148 14390 -67.9 -73.9 42 6.0 -67.9 54 13 354.5 354.5 297.6 354.5 0.01 35 140 14721 -70.1 -78.1 30 8.0 -70.1 52 13 356.3 356.3 298.0 356.3 0.01 36 130 15156 -74.1 -78.2 53 4.1 -74.1 49 12 356.8 356.8 298.1 356.8 0.01 37 122 15522 -76.7 -82.7 38 6.0 -76.7 47 12 358.6 358.6 298.4 358.6 0.00 38 102 16530 -83.7 -86.7 59 3.0 -83.7 40 11 363.9 363.9 299.5 364.0 0.00 39 100 16640 -82.9 -86.9 50 4.0 -82.9 355 7 367.6 367.6 300.1 367.6 0.00 TRP 102 16530 -83.7 -86.7 59 3.0 -83.7 40 11 363.9 363.9 299.5 364.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5817.00 m Freezing level: 532.59 mb = 5383.42 m = 17661.93 ft Wetbulb zero: 684.78 mb = 3324.17 m = 10905.93 ft Precipitable water: 1.60 inches Sfc-500 mean rel hum: 39.28 % Est. max temperature: 34.23 C = 93.61 F Sfc-Lift cond lev (LCL): 941.12 mb = 600.71 m = 1970.81 ft T: 24.21 C 700-500 lapse rate: 5.59 C/km ThetaE index: 32.90 C Layer 850.0- 700.0 mb Conv cond level (CCL): 841.06 mb = 1581.20 m = 5187.59 ft Mean mixing ratio: 16.97 g/kg Conv temperature: 34.76 C = 94.57 F Cap Strength: 3.23 C Lifted Index: -1.70 C Risk: Thunderstorms probable Lifted Index @300 mb: -1.66 C Lifted Index @700 mb: 0.35 C Showalter Index: -1.00 C Risk: Thunderstorms probable Total Totals Index: 44.10 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 23.30 C Cross Totals Index: 20.80 C K Index: 18.60 Risk: < 20 % chance of thunderstorms Sweat Index: 226.60 Risk: None Energy Index: -3.86 Risk: Severe Thunderstorms probable Parcel Indices Parcel: using 100 mb layer CAPE (B+): 458.61 J/kg Max Up Vert Vel: 30.29 m/s Conv Inhibition (B-): 84.81 J/kg Cap Strength: 3.30 C Lift Cond Lev (LCL): 895.65 mb = 1035.77 m = 3398.17 ft Lev Free Conv (LFC): 750.65 mb = 2551.16 m = 8369.83 ft Equ Level (EL): 740.65 mb = 2665.50 m = 8744.98 ft B at Equ Level: 17.10 J/kg Wind level data Storm motion: 114 at 13 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 1007 19 150 3 -1.5 2.6 | 285 11 10.2 -2.7 1 1000 63 150 7 -3.5 6.1 | 265 8 8.2 0.8 2 925 753 120 17 -14.7 8.5 | 137 4 -3.0 3.2 3 850 1491 20 5 -1.7 -4.7 | 315 14 10.0 -10.0 4 700 3141 80 31 -30.5 -5.4 | 60 22 -18.8 -10.7 5 500 5880 90 9 -9.0 0.0 | 333 6 2.7 -5.3 6 400 7610 70 9 -8.5 -3.1 | 339 9 3.2 -8.4 7 300 9740 40 3 -1.9 -2.3 | 308 12 9.8 -7.6 8 250 11020 155 3 -1.3 2.7 | 284 11 10.4 -2.6 9 200 12510 120 11 -9.5 5.5 | 265 2 2.2 0.2 10 150 14310 55 13 -10.6 -7.5 | 355 13 1.1 -12.7 11 102 16530 40 11 -7.1 -8.4 | 341 14 4.6 -13.7 12 100 16640 355 7 0.6 -7.0 | 315 17 12.3 -12.3 Wind Parameters Mean winds (0-6000m): 84.3 at 17.1 knts Storm direction: 114.3 at 12.8 knts Shear (0-3000m) pos: 4.5 neg: 1.3 tot: 5.8 10-3/s Storm rel Dir Shear (0-3000m): 127.9 deg Storm rel helicity (0-3000m) pos: 129.9 neg: -56.3 tot: 73.6 m^2/s^2 ave: 24.5 10^-3 m/s^2 rel: -0.05 Storm rel vorticity (0-3000m) horiz: 11.6 stream: -0.6 10^-3/s Energy-Hel index: 0.09 Bulk Rich Number: 18.31 Bulk Shear: 25.05 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 ------------------------------------------------------------------------------- 500 138 10 250 6| 0.0 11.1 11.1| 0.0 -16.3 -16.3 -32.6 -0.80| 11.9 -9.5 1000 122 12 226 2| 0.0 6.1 6.1| 0.0 -28.9 -28.9 -28.9 -0.86| 13.5-11.6 1500 118 11 275 2| 0.0 2.6 2.6| 0.0 -56.3 -56.3 -37.5 -0.83| 13.2-11.0 2000 101 11 340 4| 2.1 2.0 4.1| 33.0 -56.3 -23.2 -11.6 -0.51| 12.0 -6.1 2500 86 12 2 6| 3.5 1.6 5.1| 75.0 -56.3 18.8 7.5 -0.25| 11.6 -2.9 3000 86 14 21 7| 4.5 1.3 5.8|129.9 -56.3 73.6 24.5 -0.05| 11.6 -0.6 4000 85 17 40 9| 2.8 1.0 3.8|145.5 -62.0 83.4 20.9 -0.02| 9.9 -0.2 5000 85 18 42 9| 1.5 0.8 2.3|145.5 -72.3 73.1 14.6 -0.07| 8.8 -0.6 6000 84 17 37 9| 0.9 0.7 1.6|145.6 -82.4 63.2 10.5 -0.13| 7.9 -1.0 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20250428.12.gif