UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042112.upa.cvt Date: 1200Z 21 APR 25 Searching for VVTS... Searching the city database file for: VVTS ... Date:1200Z 21 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 1010 19 29.4 24.5 75 4.9 25.7 130 3 301.7 305.3 298.5 359.3 19.51 1 1000 90 28.6 24.2 77 4.4 25.3 130 11 301.8 305.3 298.5 358.9 19.35 2 962 434 25.2 23.3 89 1.9 23.8 125 15 301.7 305.2 298.3 357.9 19.05 3 925 780 24.0 18.0 69 6.0 19.8 120 19 303.8 306.5 295.7 346.0 14.18 4 913 894 23.8 15.8 61 8.0 18.4 116 18 304.8 307.1 294.8 342.0 12.46 5 905 972 24.0 14.0 54 10.0 17.3 114 18 305.8 307.8 294.1 339.3 11.17 6 879 1227 23.2 13.2 53 10.0 16.5 105 17 307.5 309.5 294.4 340.5 10.91 7 850 1519 21.0 12.0 56 9.0 15.1 95 15 308.1 310.1 294.3 339.8 10.42 8 836 1663 20.6 10.6 53 10.0 14.1 94 16 309.2 311.0 294.0 338.6 9.65 9 776 2302 16.8 3.8 42 13.0 9.2 88 18 311.8 313.0 292.2 331.9 6.49 10 750 2592 14.6 1.6 41 13.0 7.3 85 19 312.4 313.5 291.8 330.4 5.73 11 735 2762 12.6 9.5 81 3.1 10.6 84 19 312.1 314.0 295.1 343.5 10.20 12 723 2900 12.4 3.4 54 9.0 7.2 82 20 313.3 314.6 292.9 334.5 6.77 13 700 3171 10.8 3.8 62 7.0 6.7 80 21 314.4 315.8 293.6 337.0 7.20 14 666 3584 8.2 4.3 76 3.9 5.9 85 19 316.0 317.5 294.5 340.7 7.85 15 645 3847 7.2 -0.8 57 8.0 2.9 89 18 317.8 318.9 293.3 335.7 5.60 16 618 4197 4.8 0.8 75 4.0 2.5 93 16 319.0 320.2 294.3 340.0 6.58 17 590 4575 3.8 -10.2 35 14.0 -2.4 98 14 322.1 322.6 292.3 332.0 2.98 18 584 4658 3.6 -5.4 52 9.0 -0.9 99 13 322.8 323.6 293.6 337.2 4.38 19 570 4854 3.2 -12.8 30 16.0 -3.6 101 12 324.5 325.0 292.5 333.0 2.51 20 511 5728 -3.7 -11.7 54 8.0 -7.1 113 8 326.5 327.1 293.5 336.8 3.06 21 508 5775 -3.7 -19.7 28 16.0 -9.2 113 8 327.0 327.4 292.4 332.6 1.58 22 500 5900 -4.7 -9.7 68 5.0 -7.0 115 7 327.3 328.0 294.2 339.6 3.66 23 499 5916 -4.9 -9.4 71 4.5 -6.9 115 7 327.3 328.0 294.3 339.9 3.76 24 489 6075 -5.7 -11.7 63 6.0 -8.2 113 7 328.2 328.8 294.1 339.0 3.19 25 483 6171 -6.1 -13.1 58 7.0 -8.9 112 7 328.8 329.4 294.0 338.7 2.89 26 479 6237 -5.7 -23.7 23 18.0 -11.3 111 7 330.1 330.4 292.9 334.3 1.18 27 440 6899 -8.5 -31.5 14 23.0 -14.3 104 8 334.7 334.8 293.6 337.0 0.62 28 407 7498 -13.5 -34.5 15 21.0 -18.1 97 9 335.8 335.9 293.7 337.7 0.50 29 400 7630 -13.9 -38.9 10 25.0 -18.7 95 9 336.9 337.0 293.9 338.2 0.33 30 365 8322 -17.5 -54.5 2 37.0 -22.1 95 12 341.1 341.1 294.6 341.3 0.06 31 300 9760 -29.5 -48.5 14 19.0 -31.5 95 19 343.8 343.8 295.4 344.4 0.16 32 293 9927 -30.9 -49.9 14 19.0 -32.7 92 19 344.1 344.2 295.4 344.7 0.14 33 255 10894 -37.9 -58.9 9 21.0 -39.1 73 17 347.7 347.8 296.2 348.0 0.05 34 250 11030 -38.9 -59.9 9 21.0 -40.0 70 17 348.2 348.2 296.3 348.4 0.05 35 228 11655 -44.1 -67.1 6 23.0 -44.9 84 22 349.6 349.6 296.5 349.7 0.02 36 200 12520 -51.1 -68.1 11 17.0 -51.5 105 29 351.8 351.9 297.1 351.9 0.02 37 199 12553 -51.3 -68.3 11 17.0 -51.7 105 29 352.0 352.0 297.1 352.1 0.02 38 197 12618 -52.1 -58.1 48 6.0 -52.3 105 29 351.8 351.8 297.1 352.1 0.08 39 192 12784 -53.5 -56.9 66 3.4 -53.6 105 30 352.1 352.2 297.2 352.5 0.09 40 190 12851 -54.3 -65.3 25 11.0 -54.5 105 30 351.9 351.9 297.1 352.0 0.03 41 188 12918 -54.7 -58.1 66 3.4 -54.8 105 30 352.3 352.3 297.2 352.7 0.08 42 185 13021 -55.7 -57.3 82 1.6 -55.8 105 30 352.3 352.3 297.2 352.7 0.09 43 178 13265 -57.9 -59.9 78 2.0 -57.9 105 31 352.6 352.6 297.3 352.9 0.07 44 175 13372 -59.1 -64.1 52 5.0 -59.2 105 31 352.4 352.4 297.2 352.5 0.04 45 171 13516 -60.1 -61.9 79 1.8 -60.2 105 31 353.1 353.1 297.3 353.3 0.05 46 155 14121 -65.1 -76.1 20 11.0 -65.2 105 33 354.6 354.6 297.6 354.6 0.01 47 150 14320 -66.9 -73.9 37 7.0 -67.0 105 33 354.8 354.8 297.7 354.9 0.01 48 147 14442 -67.9 -72.7 50 4.8 -67.9 105 33 355.2 355.2 297.7 355.2 0.01 49 144 14565 -68.9 -72.7 58 3.8 -68.9 104 34 355.5 355.5 297.8 355.6 0.01 50 132 15079 -73.3 -76.3 63 3.0 -73.3 102 35 356.6 356.6 298.0 356.7 0.01 51 105 16388 -82.1 -85.2 59 3.1 -82.1 96 39 364.0 364.0 299.5 364.0 0.00 52 100 16660 -82.5 -86.1 54 3.6 -82.5 95 40 368.3 368.3 300.2 368.3 0.00 TRP 100 16660 -82.5 -86.1 54 3.6 -82.5 95 40 368.3 368.3 300.2 368.3 0.00 WND Sounding variables and indices 1000-500 mb thick: 5810.00 m Freezing level: 542.64 mb = 5259.62 m = 17255.75 ft Wetbulb zero: 603.72 mb = 4387.51 m = 14394.53 ft Precipitable water: 1.84 inches Sfc-500 mean rel hum: 56.70 % Est. max temperature: 35.64 C = 96.16 F Sfc-Lift cond lev (LCL): 941.22 mb = 626.78 m = 2056.34 ft T: 24.53 C 700-500 lapse rate: 5.68 C/km ThetaE index: 20.06 C Layer 1000.0- 879.0 mb Conv cond level (CCL): 809.98 mb = 1934.07 m = 6345.31 ft Mean mixing ratio: 17.29 g/kg Conv temperature: 38.02 C = 100.44 F Cap Strength: 3.38 C Lifted Index: -3.08 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -3.15 C Lifted Index @700 mb: -0.82 C Showalter Index: 2.19 C Risk: Showers probable Total Totals Index: 42.40 C Risk: None Vertical Totals Index: 25.70 C Cross Totals Index: 16.70 C K Index: 30.70 Risk: 60-80 % chance of thunderstorms Sweat Index: 181.00 Risk: None Energy Index: 0.00 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 768.29 J/kg Max Up Vert Vel: 39.20 m/s Conv Inhibition (B-): 135.91 J/kg Cap Strength: 3.36 C Lift Cond Lev (LCL): 904.22 mb = 979.14 m = 3212.36 ft Lev Free Conv (LFC): 739.22 mb = 2713.71 m = 8903.13 ft Equ Level (EL): 159.22 mb = 13955.80 m = 45786.19 ft B at Equ Level: 762.07 J/kg Wind level data Storm motion: 125 at 11 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 19 130 3 -2.3 1.9 | 303 9 7.2 -4.6 1 1000 90 130 11 -8.4 7.1 | 242 1 1.0 0.5 2 925 780 120 19 -16.5 9.5 | 113 8 -7.0 3.0 3 850 1519 95 15 -14.9 1.3 | 46 8 -5.5 -5.2 4 700 3171 80 21 -20.7 -3.6 | 48 15 -11.2 -10.2 5 500 5900 115 7 -6.3 3.0 | 319 5 3.1 -3.6 6 400 7630 95 9 -9.0 0.8 | 355 6 0.5 -5.7 7 300 9760 95 19 -18.9 1.7 | 63 11 -9.5 -4.9 8 250 11030 70 17 -16.0 -5.8 | 28 14 -6.5 -12.3 9 200 12520 105 29 -28.0 7.5 | 93 19 -18.6 1.0 10 150 14320 105 33 -31.9 8.5 | 95 23 -22.4 2.0 11 100 16660 95 40 -39.8 3.5 | 84 31 -30.4 -3.0 Wind Parameters Mean winds (0-6000m): 94.6 at 15.3 knts Storm direction: 124.6 at 11.5 knts Shear (0-3000m) pos: 0.0 neg: 3.2 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 105.6 deg Storm rel helicity (0-3000m) pos: 1.0 neg: -21.3 tot: -20.3 m^2/s^2 ave: -6.8 10^-3 m/s^2 rel: -0.55 Storm rel vorticity (0-3000m) horiz: 5.7 stream: -3.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 87.42 Bulk Shear: 8.79 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 ------------------------------------------------------------------------------- 500 127 12 151 1| 0.0 13.4 13.4| 0.0 -3.5 -3.5 -7.1 -0.63| 15.2 -9.5 1000 122 15 113 4| 0.0 7.7 7.7| 0.0 -10.2 -10.2 -10.2 -0.63| 10.6 -6.7 1500 116 16 94 5| 0.0 4.3 4.3| 0.0 -20.4 -20.4 -13.6 -0.71| 8.9 -6.3 2000 110 16 78 5| 0.0 3.8 3.8| 0.9 -20.4 -19.6 -9.8 -0.64| 7.3 -4.6 2500 105 16 69 6| 0.0 3.4 3.4| 1.0 -20.5 -19.5 -7.8 -0.59| 6.3 -3.7 3000 100 17 63 8| 0.0 3.2 3.2| 1.0 -21.3 -20.3 -6.8 -0.55| 5.7 -3.1 4000 96 17 58 9| 0.6 2.4 3.0| 2.2 -21.9 -19.6 -4.9 -0.46| 5.0 -2.3 5000 95 17 55 9| 1.1 1.9 3.0| 2.2 -25.6 -23.4 -4.7 -0.46| 4.6 -2.1 6000 95 15 48 8| 1.3 1.6 2.9| 2.4 -30.0 -27.5 -4.6 -0.49| 4.3 -2.1 Wrote GIF file: /home/apache/climate/data/raob//VVTS/skewt/VVTS.skewt.20250421.12.gif